Time to Stable

For a given set of browsers, what APIs are in all of them and how many days it take for the API to land in the first browser to the last.

Example Comparisons

Summary

A count of the number of APIs that landed in A first and B last.
	Last in Chrome	Last in Firefox	Last in Safari
First in Chrome		1954	1970
First in Firefox	1210		2162
First in Safari	1474	972

Average time for an API to become available across Chrome, Firefox, and Safari

9742 APIs took an average of 1290.06 days to become available to use.

API breakdown:

DOM API: 1265.10 days
CSS: 1294.38 days
HTML: 1527.36 days

Average time to landing by year of first landing

If a feature landed in the earliest browser in 20XX it took Y days on average to become available in the last browser (when considering Chrome, Firefox, and Safari). TTA (time to available).
	DOM API APIs	DOM API TTA	CSS APIs	CSS TTA	HTML APIs	HTML TTA
2003	450	2228.22	424	2064.12	111	2016.84
2004	442	1643.81	147	1864.41	232	1693.19
2005	317	1400.33	71	1538.93	4	1268.50
2006	15	1149.47	11	1268.45	4	2285.25
2007	117	1622.68	90	1439.82	2	928.00
2008	354	1287.41	101	1220.74	27	1020.81
2009	158	776.11	87	1086.06	4	629.00
2010	248	1256.29	56	1204.75	52	1061.23
2011	408	770.14	78	2083.76	38	1435.39
2012	284	1074.54	115	1222.50	23	2117.04
2013	379	1249.40	120	1446.45	9	1269.33
2014	338	1524.77	177	1556.86	11	1440.91
2015	385	1289.49	263	1413.69	7	905.57
2016	312	1066.13	90	1557.50	19	1239.21
2017	507	1360.45	174	902.05	8	937.13
2018	289	1286.87	84	1138.88	14	1475.36
2019	196	1338.98	150	970.47	14	904.86
2020	279	1070.94	47	1078.28	3	1435.00
2021	151	1147.42	36	735.42	3	657.67
2022	182	877.85	124	416.19	8	843.75
2023	323	774.52	83	500.52	12	266.75
2024	157	503.45	194	497.14	2	153.50
2025	32	204.78	83	171.64	7	289.29

The Tortoise and the Hare

There is a natural tension on the web with respect to browser engines. Every engine has their own set of priorities which define the level of investment that they choose to make and on which areas they choose to make it.

A developer naturally wants their experiences to be available to the widest audience possible and these differing priorities create an unevenness on the platform (a lumpiness) making it harder for developers to build experiences that work everywhere.

This section highlights where browsers are pushing and pulling on the platform.

Sprinters

This table is designed to show which browsers are pushing on the platform the most.

Adding features to quickly is not always desired because developers are unlikely to adopt those features in their sites or apps.

For a given year, if a feature landed in Browser X first, how many days it take on average to be available in Chrome, Firefox, and Safari. TTA (time to available).
Year	DOM API	DOM API TTA	CSS	CSS TTA	HTML	HTML TTA
2003
Safari	450	2228.22	424	2064.12	111	2016.84
2004
Firefox	411	1594.28	82	1895.50	220	1671.96
Safari	31	2300.42	65	1825.20	12	2082.42
2005
Firefox	255	1200.26	52	1303.02	1	1108.00
Safari	62	2223.21	19	2184.58	3	1322.00
2006
Firefox	15	1149.47	11	1268.45	4	2285.25
2007
Safari	117	1622.68	90	1439.82	2	928.00
2008
Safari	106	866.37	53	987.42	19	838.26
Chrome	23	2084.61	13	2882.38	7	1611.29
Firefox	225	1404.28	35	956.89	1	356.00
2009
Chrome	69	919.96	17	917.41	1	245.00
Safari	65	498.14	62	1139.19	3	757.00
Firefox	24	1115.38	8	1032.63	0	NaN
2010
Chrome	196	1371.73	21	1032.52	41	862.85
Safari	24	846.96	31	1369.16	11	1800.64
Firefox	28	799.07	4	834.75	0	NaN
2011
Chrome	359	605.58	25	1082.52	21	809.05
Firefox	43	2010.56	35	2422.83	17	2209.12
Safari	6	1726.83	18	2815.06	0	NaN
2012
Chrome	109	1241.16	61	965.74	17	2557.82
Safari	53	822.00	3	3597.00	6	868.17
Firefox	122	1035.39	51	1389.94	0	NaN
2013
Chrome	174	1144.48	54	1279.31	2	389.50
Firefox	121	1803.10	32	1060.88	7	1520.71
Safari	84	669.15	34	2074.79	0	NaN
2014
Chrome	141	1624.89	60	1232.20	10	1543.70
Firefox	196	1450.64	111	1781.81	1	413.00
Safari	1	1937.00	6	642.00	0	NaN
2015
Chrome	264	1290.61	40	1683.80	6	887.33
Firefox	117	1270.96	195	1419.39	1	1015.00
Safari	4	1757.75	28	988.07	0	NaN
2016
Chrome	188	1141.76	46	1427.26	17	1295.94
Firefox	119	958.16	33	1687.48	0	NaN
Safari	5	791.80	11	1712.18	2	757.00
2017
Firefox	276	1558.46	102	802.71	1	238.00
Chrome	165	1185.59	48	1197.13	5	1345.00
Safari	66	969.53	24	734.13	2	267.00
2018
Firefox	63	701.60	30	1414.13	0	NaN
Chrome	204	1450.59	49	997.14	11	1422.09
Safari	22	1444.73	5	876.40	3	1670.67
2019
Firefox	27	898.70	120	1000.50	0	NaN
Chrome	123	1343.06	18	967.44	10	958.00
Safari	46	1586.50	12	674.67	4	772.00
2020
Safari	21	350.43	5	797.60	0	NaN
Chrome	227	1255.75	14	1305.14	3	1435.00
Firefox	31	205.68	28	1014.96	0	NaN
2021
Firefox	11	676.45	9	777.56	0	NaN
Chrome	129	1221.20	16	665.38	3	657.67
Safari	11	753.18	11	802.82	0	NaN
2022
Chrome	146	919.92	31	366.94	6	1009.17
Firefox	9	294.11	14	349.71	0	NaN
Safari	27	844.89	79	447.29	2	347.50
2023
Chrome	276	811.34	54	514.98	7	319.00
Firefox	21	428.95	24	486.71	0	NaN
Safari	26	662.77	5	410.60	5	193.60
2024
Firefox	12	274.83	4	210.00	0	NaN
Chrome	143	526.54	184	512.97	2	153.50
Safari	2	224.50	6	203.17	0	NaN
2025
Chrome	27	218.15	34	250.35	7	289.29
Firefox	5	132.60	8	39.75	0	NaN
Safari	0	NaN	41	132.10	0	NaN

Plodders

This table is designed to show which browsers are pulling on the platform the most.

For a feature that first landed in year X, how many days did it take on average for the last browser to catch up across Chrome, Firefox, and Safari. TTA (time to available).
Year	DOM API count	DOM API TTA	CSS count	CSS TTA	HTML count	HTML TTA
2003
Chrome	421	2087.85	414	2011.87	110	1998.00
Firefox	29	4266.03	10	4227.20	1	4089.00
2004
Chrome	404	1517.58	123	1695.87	109	1606.62
Safari	32	2703.06	23	2703.13	122	1739.53
Firefox	6	4493.83	1	3305.00	1	5475.00
2005
Safari	23	1839.74	30	1440.67	0	NaN
Chrome	273	1164.67	23	1124.91	4	1268.50
Firefox	21	3982.71	18	2231.72	0	NaN
2006
Safari	6	1337.83	2	3471.00	3	2650.67
Chrome	9	1023.89	9	779.00	1	1189.00
2007
Chrome	27	787.67	9	1319.22	0	NaN
Firefox	90	1873.18	81	1453.22	2	928.00
2008
Firefox	73	1532.23	52	1324.10	14	1475.29
Safari	221	1410.14	37	946.38	1	356.00
Chrome	60	537.50	12	1618.83	12	546.00
2009
Firefox	77	905.96	75	1001.21	4	629.00
Safari	28	1357.68	7	1317.43	0	NaN
Chrome	53	280.21	5	2034.80	0	NaN
2010
Safari	99	1844.75	6	633.17	7	791.71
Firefox	146	874.25	50	1273.34	44	1100.68
Chrome	3	430.00	0	NaN	1	1212.00
2011
Firefox	144	1143.57	23	746.39	4	1699.25
Safari	259	533.16	26	2390.27	34	1404.35
Chrome	5	2291.20	29	2869.62	0	NaN
2012
Safari	171	1117.25	57	1286.98	8	2305.13
Firefox	107	982.09	53	1037.49	15	2016.73
Chrome	6	1506.17	5	2448.60	0	NaN
2013
Firefox	132	708.70	65	1171.85	0	NaN
Safari	225	1561.39	26	1001.08	5	1024.80
Chrome	22	1302.91	29	2461.24	4	1575.00
2014
Firefox	39	2624.44	29	1422.52	3	1606.33
Safari	249	1331.73	68	1685.31	7	1516.86
Chrome	50	1628.34	80	1496.39	1	413.00
2015
Safari	324	1264.92	206	1454.44	7	905.57
Firefox	46	1402.07	43	1436.58	0	NaN
Chrome	15	1474.93	14	743.71	0	NaN
2016
Safari	200	1238.59	49	1635.00	7	1236.43
Firefox	76	907.21	34	1344.15	10	1337.60
Chrome	36	443.50	7	2051.29	2	757.00
2017
Safari	349	1479.70	102	517.18	2	976.00
Chrome	30	517.37	36	2014.64	0	NaN
Firefox	128	1232.89	36	879.94	6	924.17
2018
Safari	209	1233.67	73	1148.25	4	1557.00
Chrome	25	1389.40	5	1489.40	1	1846.00
Firefox	55	1442.42	6	732.83	9	1397.89
2019
Safari	90	1164.94	125	992.66	7	867.57
Firefox	92	1583.82	10	936.50	4	1132.50
Chrome	14	848.86	15	808.13	3	688.33
2020
Chrome	23	307.52	19	884.84	0	NaN
Firefox	191	1233.21	7	1342.00	2	1544.00
Safari	65	864.22	21	1165.38	1	1217.00
2021
Safari	68	1249.60	21	668.10	1	755.00
Firefox	80	1054.60	8	668.63	2	609.00
Chrome	3	1306.67	7	1013.71	0	NaN
2022
Safari	44	509.70	25	405.00	0	NaN
Chrome	20	1090.40	32	473.53	0	NaN
Firefox	118	979.09	67	392.97	8	843.75
2023
Firefox	39	500.26	38	499.84	9	276.33
Safari	256	834.09	36	562.61	0	NaN
Chrome	28	611.89	9	255.00	3	238.00
2024
Chrome	7	192.14	7	216.00	0	NaN
Safari	24	230.29	11	372.09	1	27.00
Firefox	126	572.78	176	516.14	1	280.00
2025
Safari	18	177.78	1	115.00	3	213.00
Firefox	11	254.55	75	185.71	4	346.50
Chrome	3	184.33	7	29.00	0	NaN

Stable APIs

Below is a list of features that are in Chrome, Firefox, and Safari

Raw Data

Quick Links:

DOM API
CSS
HTML

DOM API Data

API	First Browser	Date	Last Browser	Date	Days	Notes
api.ANGLE_instanced_arrays 📋	Chrome	1/14/2014	Firefox	6/7/2016	875	Chrome: Available only on macOS.Opera: Available only on macOS.
api.ANGLE_instanced_arrays.drawArraysInstancedANGLE 📋	Chrome	10/1/2013	Firefox	6/7/2016	980
api.ANGLE_instanced_arrays.drawElementsInstancedANGLE 📋	Chrome	10/1/2013	Firefox	6/7/2016	980
api.ANGLE_instanced_arrays.vertexAttribDivisorANGLE 📋	Chrome	10/1/2013	Firefox	6/7/2016	980
api.AbortController 📋	Firefox	11/14/2017	Safari	3/25/2019	496	Safari: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.Safari on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.WebView on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.
api.AbortController.AbortController 📋	Firefox	11/14/2017	Safari	3/25/2019	496	Safari: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.Safari on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.WebView on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.
api.AbortController.abort 📋	Firefox	11/14/2017	Safari	3/25/2019	496	Node.js: The optional `reason` argument is not supported.Node.js: The optional `reason` argument is not supported.Safari: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.Safari on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.WebView on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.
api.AbortController.abort.reason_parameter 📋	Chrome	2/1/2022	Safari	3/14/2022	41
api.AbortController.signal 📋	Firefox	11/14/2017	Safari	3/25/2019	496	Safari: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.Safari on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.WebView on iOS: Even though `window.AbortController` is defined, it doesn't really abort `fetch` requests. See bug 174980.
api.AbortSignal 📋	Firefox	11/14/2017	Chrome	4/17/2018	154
api.AbortSignal.abort_event 📋	Firefox	11/14/2017	Chrome	4/17/2018	154
api.AbortSignal.abort_static 📋	Firefox	4/19/2021	Safari	9/20/2021	154
api.AbortSignal.abort_static.reason_parameter 📋	Chrome	2/1/2022	Safari	3/14/2022	41
api.AbortSignal.aborted 📋	Firefox	11/14/2017	Chrome	4/17/2018	154
api.AbortSignal.any_static 📋	Chrome	8/15/2023	Firefox	3/19/2024	217
api.AbortSignal.reason 📋	Chrome	2/1/2022	Safari	3/14/2022	41
api.AbortSignal.throwIfAborted 📋	Firefox	2/8/2022	Chrome	3/29/2022	49
api.AbortSignal.timeout_static 📋	Firefox	5/3/2022	Chrome	4/16/2024	714	Chrome: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.Chrome Android: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.Edge: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.Quest Browser: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.Opera: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.Opera Android: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.Samsung Internet: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.WebView Android: Always aborts with an `AbortError` on timeout, not a `TimeoutError`.
api.AbstractRange 📋	Firefox	9/3/2019	Safari	4/26/2021	601
api.AbstractRange.collapsed 📋	Firefox	9/3/2019	Safari	4/26/2021	601
api.AbstractRange.endContainer 📋	Firefox	9/3/2019	Safari	4/26/2021	601
api.AbstractRange.endOffset 📋	Firefox	9/3/2019	Safari	4/26/2021	601
api.AbstractRange.startContainer 📋	Firefox	9/3/2019	Safari	4/26/2021	601
api.AbstractRange.startOffset 📋	Firefox	9/3/2019	Safari	4/26/2021	601
api.AnalyserNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.AnalyserNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.AnalyserNode.fftSize 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.frequencyBinCount 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.getByteFrequencyData 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.getByteTimeDomainData 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.getFloatFrequencyData 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.getFloatTimeDomainData 📋	Chrome	5/20/2014	Safari	4/26/2021	2533
api.AnalyserNode.maxDecibels 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.minDecibels 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AnalyserNode.smoothingTimeConstant 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.Animation 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.Animation 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.cancel 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.cancel_event 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.commitStyles 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Animation.currentTime 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.effect 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.Animation.finish 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.finish_event 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.finished 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.Animation.id 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.overallProgress 📋	Chrome	2/4/2025	Safari	12/12/2025	311
api.Animation.pause 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.pending 📋	Firefox	3/13/2018	Safari	3/24/2020	742	Firefox: Before version 59, the pending status was reported by a `"pending"` value returned from `Animation.playState`.Firefox for Android: Before version 59, the pending status was reported by a `"pending"` value returned from `Animation.playState`.
api.Animation.persist 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Animation.play 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.playState 📋	Firefox	8/2/2016	Safari	3/24/2020	1330	Chrome: Before Chrome 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows `paused`.Chrome Android: Before Chrome Android 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Chrome Android 50/Opera 37, it shows `paused`.Firefox: Before Firefox 59, this property returned `pending` for Animations with incomplete asynchronous operations but as of Firefox 59 this is indicated by the separate `Animation.pending` property. This reflects recent changes to the specification.Firefox for Android: Before Firefox for Android 59, this property returned `pending` for Animations with incomplete asynchronous operations but as of Firefox for Android 59 this is indicated by the separate `Animation.pending` property. This reflects recent changes to the specification.Quest Browser: Before Quest Browser 5.0/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Quest Browser 5.0/Opera 37, it shows `paused`.Opera: Before Chrome 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows `paused`.Opera Android: Before Chrome 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows `paused`.Samsung Internet: Before Samsung Internet 5.0/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with Samsung Internet 5.0/Opera 37, it shows `paused`.WebView Android: Before WebView Android 50/Opera 37, this property returned `idle` for an animation that had not yet started. Starting with WebView Android 50/Opera 37, it shows `paused`.
api.Animation.playbackRate 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.ready 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.Animation.remove_event 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Animation.remove_filling_animation	Safari	3/24/2020	Chrome	7/27/2020	125
api.Animation.replaceState 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Animation.reverse 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.startTime 📋	Firefox	8/2/2016	Safari	3/24/2020	1330
api.Animation.timeline 📋	Safari	3/24/2020	Chrome	7/27/2020	125	Firefox: Only the getter is supportedFirefox for Android: Only the getter is supportedSafari: Only the getter is supportedSafari on iOS: Only the getter is supportedWebView on iOS: Only the getter is supported
api.Animation.updatePlaybackRate 📋	Firefox	5/9/2018	Safari	3/24/2020	685
api.AnimationEffect 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.AnimationEffect.getComputedTiming 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.AnimationEffect.getTiming 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.AnimationEffect.updateTiming 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.AnimationEvent 📋	Firefox	6/21/2011	Safari	9/30/2015	1562
api.AnimationEvent.AnimationEvent 📋	Firefox	8/6/2013	Safari	9/30/2015	785
api.AnimationEvent.animationName 📋	Firefox	6/21/2011	Safari	9/30/2015	1562
api.AnimationEvent.elapsedTime 📋	Firefox	6/21/2011	Safari	9/30/2015	1562
api.AnimationEvent.pseudoElement 📋	Firefox	8/6/2013	Safari	3/24/2020	2422
api.AnimationPlaybackEvent 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.AnimationPlaybackEvent.AnimationPlaybackEvent 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.AnimationPlaybackEvent.currentTime 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.AnimationPlaybackEvent.timelineTime 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.AnimationTimeline 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.AnimationTimeline.currentTime 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Attr 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Attr.localName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Attr.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Attr.namespaceURI 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Attr.ownerElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Attr.prefix 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Attr.specified 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Attr.value 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.AudioBuffer 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBuffer.AudioBuffer 📋	Chrome	12/1/2016	Safari	4/26/2021	1607	Chrome: The `context` parameter was supported up until version 57, but has now been removed.Chrome Android: The `context` parameter was supported up until version 57, but has now been removed.Quest Browser: The `context` parameter was supported up until version 5.0, but has now been removed.Opera: The `context` parameter was supported up until version 44, but has now been removed.Opera Android: The `context` parameter was supported up until version 44, but has now been removed.Samsung Internet: The `context` parameter was supported up until Samsung Internet 7.0, but has now been removed.WebView Android: The `context` parameter was supported up until version 57, but has now been removed.
api.AudioBuffer.copyFromChannel 📋	Firefox	2/4/2014	Safari	4/26/2021	2638
api.AudioBuffer.copyToChannel 📋	Firefox	2/4/2014	Safari	4/26/2021	2638
api.AudioBuffer.duration 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBuffer.getChannelData 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBuffer.length 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBuffer.numberOfChannels 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBuffer.sampleRate 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBufferSourceNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBufferSourceNode.AudioBufferSourceNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.AudioBufferSourceNode.buffer 📋	Chrome	9/16/2011	Firefox	10/29/2013	774	Firefox: Firefox currently handles the value `null` incorrectly. Instead of producing a node that generates a single channel of silence, the node becomes unusable and will be ignored if you attempt to connect it to anything.Firefox for Android: Firefox for Android currently handles the value `null` incorrectly. Instead of producing a node that generates a single channel of silence, the node becomes unusable and will be ignored if you attempt to connect it to anything.
api.AudioBufferSourceNode.detune 📋	Chrome	7/21/2015	Safari	4/26/2021	2106
api.AudioBufferSourceNode.loop 📋	Chrome	10/25/2011	Firefox	10/29/2013	735
api.AudioBufferSourceNode.loopEnd 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.AudioBufferSourceNode.loopStart 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.AudioBufferSourceNode.playbackRate 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioBufferSourceNode.start 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.AudioContext 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.AudioContext.AudioContext 📋	Firefox	10/29/2013	Safari	4/26/2021	2736	Chrome: Before Chrome 66, each tab is limited to 6 audio contexts in Chrome; attempting to create more will throw a `DOMException`. For details see Per-tab audio context limitation in Chrome.Chrome: If `latencyHint` isn't valid, Chrome throws a `TypeError` exception. See Non-standard exceptions in Chrome for details.Chrome Android: Before Chrome Android 66, each tab is limited to 6 audio contexts in Chrome Android; attempting to create more will throw a `DOMException`. For details see Per-tab audio context limitation in Chrome Android.Chrome Android: If `latencyHint` isn't valid, Chrome Android throws a `TypeError` exception. See Non-standard exceptions in Chrome Android for details.Quest Browser: Before Quest Browser 5.0, each tab is limited to 6 audio contexts in Quest Browser; attempting to create more will throw a `DOMException`. For details see Per-tab audio context limitation in Quest Browser.Quest Browser: If `latencyHint` isn't valid, Quest Browser throws a `TypeError` exception. See Non-standard exceptions in Quest Browser for details.Opera: Before Opera 53, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a `DOMException`. For details see Per-tab audio context limitation in Chrome.Opera: If `latencyHint` isn't valid, Opera throws a `TypeError` exception. See Non-standard exceptions in Chrome for details.Opera Android: Before Opera Android 47, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a `DOMException`. For details see Per-tab audio context limitation in Chrome.Opera Android: If `latencyHint` isn't valid, Opera throws a `TypeError` exception. See Non-standard exceptions in Chrome for details.Safari: New audio contexts are suspended until the `resume()` method is called via user action, such as the `click` event.Safari on iOS: New audio contexts are suspended until the `resume()` method is called via user action, such as the `click` event.Samsung Internet: Before Samsung Internet 9.0, each tab is limited to 6 audio contexts in Samsung Internet; attempting to create more will throw a `DOMException`. For details see Per-tab audio context limitation in Chrome.Samsung Internet: If `latencyHint` isn't valid, Samsung Internet throws a `TypeError` exception. See Non-standard exceptions in Chrome for details.WebView Android: Before WebView Android 66, each tab is limited to 6 audio contexts in WebView Android; attempting to create more will throw a `DOMException`. For details see Per-tab audio context limitation in WebView Android.WebView Android: If `latencyHint` isn't valid, WebView Android throws a `TypeError` exception. See Non-standard exceptions in WebView Android for details.WebView on iOS: New audio contexts are suspended until the `resume()` method is called via user action, such as the `click` event.
api.AudioContext.AudioContext.options_sampleRate_parameter 📋	Firefox	6/26/2018	Safari	4/26/2021	1035
api.AudioContext.baseLatency 📋	Chrome	4/19/2017	Safari	4/26/2021	1468
api.AudioContext.close 📋	Chrome	4/14/2015	Safari	9/30/2015	169
api.AudioContext.createMediaElementSource 📋	Chrome	10/25/2011	Firefox	10/29/2013	735	Firefox: If a sample rate is specified for the audio context, it must match the sample rate of the stream, otherwise this method will fail.Firefox for Android: If a sample rate is specified for the audio context, it must match the sample rate of the stream, otherwise this method will fail.
api.AudioContext.createMediaStreamDestination 📋	Chrome	2/21/2013	Safari	9/19/2017	1671
api.AudioContext.createMediaStreamSource 📋	Chrome	9/25/2012	Safari	9/19/2017	1820
api.AudioContext.getOutputTimestamp 📋	Chrome	3/9/2017	Safari	4/26/2021	1509
api.AudioContext.outputLatency 📋	Firefox	10/22/2019	Safari	3/31/2025	1987
api.AudioContext.resume 📋	Chrome	3/3/2015	Safari	9/30/2015	211
api.AudioContext.suspend 📋	Chrome	3/3/2015	Safari	9/30/2015	211
api.AudioData 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.AudioData 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.allocationSize 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.clone 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.close 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.copyTo 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.duration 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.format 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.numberOfChannels 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.numberOfFrames 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.sampleRate 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioData.timestamp 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.AudioDecoder 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.close 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.configure 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.decode 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.decodeQueueSize 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.dequeue_event 📋	Chrome	9/27/2022	Safari	9/15/2025	1084
api.AudioDecoder.flush 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.isConfigSupported_static 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.reset 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDecoder.state 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioDestinationNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioDestinationNode.maxChannelCount 📋	Chrome	5/21/2013	Safari	4/26/2021	2897	Safari: This property always returns `0`.Safari on iOS: This property always returns `0`.WebView on iOS: This property always returns `0`.
api.AudioEncoder 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.AudioEncoder 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.close 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.configure 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.configure.bitrateMode 📋	Chrome	10/31/2023	Safari	9/15/2025	685
api.AudioEncoder.configure.opus 📋	Chrome	2/7/2023	Safari	9/15/2025	951
api.AudioEncoder.dequeue_event 📋	Chrome	9/27/2022	Safari	9/15/2025	1084
api.AudioEncoder.encode 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.encodeQueueSize 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.flush 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.isConfigSupported_static 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.reset 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioEncoder.state 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.AudioListener 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioListener.setOrientation 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioListener.setPosition 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioNode.channelCount 📋	Chrome	5/21/2013	Firefox	10/29/2013	161
api.AudioNode.channelCountMode 📋	Chrome	5/21/2013	Firefox	10/29/2013	161
api.AudioNode.channelInterpretation 📋	Chrome	5/21/2013	Firefox	10/29/2013	161
api.AudioNode.connect 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioNode.context 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioNode.disconnect 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioNode.numberOfInputs 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioNode.numberOfOutputs 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioParam 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioParam.cancelScheduledValues 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioParam.defaultValue 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioParam.exponentialRampToValueAtTime 📋	Chrome	9/16/2011	Firefox	10/29/2013	774	Chrome Android: Behaves like `setValueAtTime()`: Sets the target volume at the specified time, but doesn't ramp to it.Firefox: Sometimes jumps to value immediately. See bug 2011524.Firefox for Android: Sometimes jumps to value immediately. See bug 2011524.Quest Browser: Behaves like `setValueAtTime()`: Sets the target volume at the specified time, but doesn't ramp to it.WebView Android: Behaves like `setValueAtTime()`: Sets the target volume at the specified time, but doesn't ramp to it.
api.AudioParam.linearRampToValueAtTime 📋	Chrome	9/16/2011	Firefox	10/29/2013	774	Chrome Android: Behaves like `setValueAtTime()`: Sets the target volume at the specified time, but doesn't ramp to it.Firefox: Sometimes jumps to value immediately. See bug 2011524.Firefox for Android: Sometimes jumps to value immediately. See bug 2011524.Quest Browser: Behaves like `setValueAtTime()`: Sets the target volume at the specified time, but doesn't ramp to it.WebView Android: Behaves like `setValueAtTime()`: Sets the target volume at the specified time, but doesn't ramp to it.
api.AudioParam.maxValue 📋	Safari	7/25/2012	Firefox	4/19/2017	1729
api.AudioParam.minValue 📋	Safari	7/25/2012	Firefox	4/19/2017	1729
api.AudioParam.setTargetAtTime 📋	Safari	7/25/2012	Firefox	10/29/2013	461
api.AudioParam.setValueAtTime 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioParam.setValueCurveAtTime 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioParam.value 📋	Chrome	9/16/2011	Firefox	10/29/2013	774	Chrome: Before version 66, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Chrome Android: Before version 66, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Firefox: Before Firefox 134, setting `value` was ignored when done at the same time as scheduled automation events.Firefox: Before Firefox 69, `value` did not take into account scheduled or gradiated changes to the parameter's value; instead, only explicitly set values were returned.Firefox for Android: Firefox for Android does not currently take into account scheduled or gradiated changes to the parameter's value; only the initial value or the most recent explicitly set value is returned.Quest Browser: Before version 5.0, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Opera: Before version 53, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Opera Android: Before version 47, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Samsung Internet: Before version 9.0, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly).WebView Android: Before version 66, the gain value of a `GainNode` would perform a smooth interpolation to prevent dezippering (instead of changing instantly).
api.AudioParamMap 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.@@iterator	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.entries	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.forEach	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.get	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.has	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.keys	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.size	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioParamMap.values	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioProcessingEvent	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioProcessingEvent.inputBuffer 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioProcessingEvent.outputBuffer 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioProcessingEvent.playbackTime 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.AudioScheduledSourceNode 📋	Chrome	3/9/2017	Safari	9/16/2020	1287	Chrome: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Chrome Android: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Edge: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Firefox: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Firefox for Android: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Opera: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Opera Android: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Safari: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Safari on iOS: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.Samsung Internet: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.WebView Android: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.WebView on iOS: The `AudioScheduledSourceNode` interface itself is not present, but some of its members are available on the `AudioBufferSourceNode`, `ConstantSourceNode` and `OscillatorNode` interfaces.
api.AudioScheduledSourceNode.ended_event 📋	Chrome	10/1/2013	Firefox	10/29/2013	28
api.AudioScheduledSourceNode.start 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.AudioScheduledSourceNode.stop 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.AudioTrack 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.AudioTrack.enabled 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.AudioTrack.id 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.AudioTrack.kind 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.AudioTrack.label 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.AudioTrack.language 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.AudioTrackList 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.AudioTrackList.addtrack_event 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.AudioTrackList.change_event 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.AudioTrackList.getTrackById 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.AudioTrackList.length 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.AudioTrackList.removetrack_event 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.AudioWorklet 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletGlobalScope 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletGlobalScope.currentFrame 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletGlobalScope.currentTime 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletGlobalScope.registerProcessor 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletGlobalScope.sampleRate 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletNode 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletNode.AudioWorkletNode 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletNode.parameters 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletNode.port 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletNode.processorerror_event 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.AudioWorkletProcessor 📋	Chrome	1/23/2018	Safari	4/26/2021	1189
api.AudioWorkletProcessor.AudioWorkletProcessor 📋	Chrome	1/23/2018	Safari	4/26/2021	1189
api.AudioWorkletProcessor.port 📋	Chrome	1/23/2018	Safari	4/26/2021	1189
api.AuthenticatorAssertionResponse 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAssertionResponse.authenticatorData 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAssertionResponse.signature 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAssertionResponse.userHandle 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAttestationResponse 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAttestationResponse.attestationObject 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAttestationResponse.getAuthenticatorData 📋	Chrome	8/25/2020	Firefox	10/24/2023	1155
api.AuthenticatorAttestationResponse.getPublicKey 📋	Chrome	8/25/2020	Firefox	10/24/2023	1155
api.AuthenticatorAttestationResponse.getPublicKeyAlgorithm 📋	Chrome	8/25/2020	Firefox	10/24/2023	1155
api.AuthenticatorAttestationResponse.getTransports 📋	Chrome	4/23/2019	Firefox	10/24/2023	1645
api.AuthenticatorResponse 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorResponse.clientDataJSON 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.BarProp 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.BarProp.visible 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.BaseAudioContext 📋	Chrome	1/25/2017	Safari	4/26/2021	1552	Chrome: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Chrome Android: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Edge: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Firefox: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Firefox for Android: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Opera: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Opera Android: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Safari: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Safari on iOS: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.Samsung Internet: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.WebView Android: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.WebView on iOS: The `BaseAudioContext` interface itself is not present, but many of the methods are available on the `AudioContext` and `OfflineAudioContext` interfaces.
api.BaseAudioContext.audioWorklet 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
api.BaseAudioContext.createAnalyser 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createBiquadFilter 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createBuffer 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createBufferSource 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createChannelMerger 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createChannelSplitter 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createConstantSource 📋	Chrome	1/25/2017	Safari	4/26/2021	1552
api.BaseAudioContext.createConvolver 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createDelay 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.BaseAudioContext.createDynamicsCompressor 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createGain 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.BaseAudioContext.createIIRFilter 📋	Chrome	3/2/2016	Safari	4/26/2021	1881
api.BaseAudioContext.createOscillator 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.BaseAudioContext.createPanner 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.createPeriodicWave 📋	Chrome	10/1/2013	Safari	10/16/2014	380
api.BaseAudioContext.createPeriodicWave.constraints_disableNormalization_parameter	Chrome	10/13/2015	Safari	4/26/2021	2022
api.BaseAudioContext.createScriptProcessor 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.BaseAudioContext.createStereoPanner 📋	Chrome	3/3/2015	Safari	4/26/2021	2246
api.BaseAudioContext.createWaveShaper 📋	Chrome	10/25/2011	Firefox	10/29/2013	735
api.BaseAudioContext.currentTime 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.decodeAudioData 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.decodeAudioData.returns_promise	Firefox	2/24/2015	Safari	4/26/2021	2253
api.BaseAudioContext.destination 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.listener 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.sampleRate 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BaseAudioContext.state 📋	Chrome	3/3/2015	Safari	9/30/2015	211
api.BaseAudioContext.statechange_event 📋	Chrome	3/3/2015	Safari	9/30/2015	211
api.BeforeUnloadEvent 📋	Firefox	11/29/2005	Safari	10/22/2013	2884
api.BeforeUnloadEvent.returnValue 📋	Firefox	11/29/2005	Chrome	10/31/2023	6545	Chrome: Before Chrome 119, an empty string incorrectly activated the confirmation dialog.Chrome Android: Before Chrome Android 119, an empty string incorrectly activated the confirmation dialog.Quest Browser: Before Quest Browser false, an empty string incorrectly activated the confirmation dialog.Opera: Before Opera 105, an empty string incorrectly activated the confirmation dialog.Opera Android: Before Opera Android 79, an empty string incorrectly activated the confirmation dialog.WebView Android: Before WebView Android 119, an empty string incorrectly activated the confirmation dialog.
api.BeforeUnloadEvent.user_interaction	Firefox	1/26/2016	Safari	9/19/2017	602
api.BiquadFilterNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BiquadFilterNode.BiquadFilterNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.BiquadFilterNode.Q 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BiquadFilterNode.detune 📋	Chrome	2/21/2013	Firefox	10/29/2013	250
api.BiquadFilterNode.frequency 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BiquadFilterNode.gain 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.BiquadFilterNode.getFrequencyResponse 📋	Chrome	2/8/2012	Firefox	10/29/2013	629
api.BiquadFilterNode.type 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.Blob 📋	Chrome	5/25/2010	Safari	7/25/2012	792	Node.js: Available as a part of the `buffer` module.Node.js: Available as a part of the `buffer` module.
api.Blob.Blob 📋	Firefox	6/5/2012	Safari	7/25/2012	50	Firefox: Before Firefox 16, the second parameter, when set to `null` or `undefined`, leads to an error instead of being handled as an empty dictionary.Firefox for Android: Before Firefox for Android 16, the second parameter, when set to `null` or `undefined`, leads to an error instead of being handled as an empty dictionary.Internet Explorer: IE10 throws `InvalidStateError` with a `TypedArray` argument. Consider using `MSBuilder` as an alternative.Node.js: Before v16.7.0, the `endings` option was not supported.
api.Blob.arrayBuffer 📋	Chrome	7/30/2019	Safari	9/16/2020	414
api.Blob.bytes 📋	Firefox	7/9/2024	Chrome	1/13/2026	553
api.Blob.size 📋	Chrome	5/25/2010	Safari	7/25/2012	792
api.Blob.slice 📋	Firefox	6/5/2012	Safari	10/22/2013	504	Firefox: Before Firefox 12, there was a bug that affected the behavior of `Blob.slice()`; it did not work for `start` and `end` positions outside the range of signed 64-bit values; it has now been fixed to support unsigned 64-bit values.Firefox for Android: Before Firefox for Android 14, there was a bug that affected the behavior of `Blob.slice()`; it did not work for `start` and `end` positions outside the range of signed 64-bit values; it has now been fixed to support unsigned 64-bit values.
api.Blob.stream 📋	Chrome	7/30/2019	Safari	4/26/2021	636
api.Blob.text 📋	Chrome	7/30/2019	Safari	9/16/2020	414
api.Blob.type 📋	Chrome	5/25/2010	Safari	7/25/2012	792
api.BlobEvent 📋	Firefox	5/14/2013	Safari	9/16/2020	2682
api.BlobEvent.BlobEvent 📋	Firefox	5/14/2013	Safari	9/16/2020	2682
api.BlobEvent.data 📋	Firefox	5/14/2013	Safari	9/16/2020	2682
api.BroadcastChannel 📋	Firefox	5/12/2015	Safari	3/14/2022	2498	Node.js: Available as a part of the `worker_threads` module.
api.BroadcastChannel.BroadcastChannel 📋	Firefox	5/12/2015	Safari	3/14/2022	2498
api.BroadcastChannel.close 📋	Firefox	5/12/2015	Safari	3/14/2022	2498
api.BroadcastChannel.message_event 📋	Firefox	5/12/2015	Safari	3/14/2022	2498
api.BroadcastChannel.messageerror_event 📋	Chrome	7/25/2017	Safari	3/14/2022	1693
api.BroadcastChannel.name 📋	Firefox	5/12/2015	Safari	3/14/2022	2498
api.BroadcastChannel.postMessage 📋	Firefox	5/12/2015	Safari	3/14/2022	2498
api.ByteLengthQueuingStrategy 📋	Chrome	7/20/2016	Firefox	1/29/2019	923	Node.js: Available as a part of the `stream/web` module.
api.ByteLengthQueuingStrategy.ByteLengthQueuingStrategy 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ByteLengthQueuingStrategy.highWaterMark 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ByteLengthQueuingStrategy.size 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.CDATASection 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.CSPViolationReportBody 📋	Chrome	4/23/2019	Safari	3/31/2025	2169
api.CSS 📋	Firefox	6/25/2013	Safari	9/30/2015	827
api.CSS.escape_static 📋	Firefox	7/22/2014	Safari	3/27/2017	979
api.CSS.highlights_static 📋	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.CSS.registerProperty_static 📋	Chrome	10/22/2019	Firefox	7/9/2024	1722
api.CSS.supports_static 📋	Firefox	6/25/2013	Safari	9/30/2015	827
api.CSS.supports_static.optional_parens	Firefox	8/8/2017	Safari	9/19/2017	42
api.CSSAnimation 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.CSSAnimation.animationName 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.CSSConditionRule 📋	Firefox	4/2/2013	Safari	4/26/2021	2946
api.CSSConditionRule.conditionText 📋	Firefox	4/2/2013	Safari	4/26/2021	2946
api.CSSContainerRule 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
api.CSSContainerRule.containerName 📋	Firefox	2/14/2023	Safari	9/18/2023	216
api.CSSContainerRule.containerQuery 📋	Firefox	2/14/2023	Safari	9/18/2023	216
api.CSSCounterStyleRule 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.additiveSymbols 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.fallback 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.name 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.negative 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.pad 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.prefix 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.range 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.speakAs 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.suffix 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.symbols 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSCounterStyleRule.system 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
api.CSSFontFaceRule 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.CSSFontFaceRule.style 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.CSSFontFeatureValuesRule 📋	Firefox	12/1/2014	Chrome	3/4/2025	3746	Chrome: Not exposed on `Window`. See bug 385925149.Chrome Android: Not exposed on `Window`. See bug 385925149.Edge: Not exposed on `Window`. See bug 385925149.Opera: Not exposed on `Window`. See bug 385925149.Opera Android: Not exposed on `Window`. See bug 385925149.Samsung Internet: Not exposed on `Window`. See bug 385925149.WebView Android: Not exposed on `Window`. See bug 385925149.
api.CSSFontFeatureValuesRule.fontFamily 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
api.CSSFontPaletteValuesRule 📋	Safari	3/14/2022	Firefox	11/15/2022	246
api.CSSFontPaletteValuesRule.basePalette 📋	Safari	3/14/2022	Firefox	11/15/2022	246
api.CSSFontPaletteValuesRule.fontFamily 📋	Safari	3/14/2022	Firefox	11/15/2022	246
api.CSSFontPaletteValuesRule.name 📋	Safari	3/14/2022	Firefox	11/15/2022	246
api.CSSFontPaletteValuesRule.overrideColors 📋	Safari	3/14/2022	Firefox	11/15/2022	246
api.CSSGroupingRule 📋	Firefox	4/2/2013	Safari	4/26/2021	2946	Safari: The `CSSGroupingRule` interface itself is not present, but many of the methods are available on various interfaces such as the `CSSMediaRule` and `CSSPageRule` interfaces.Safari on iOS: The `CSSGroupingRule` interface itself is not present, but many of the methods are available on various interfaces such as the `CSSMediaRule` and `CSSPageRule` interfaces.WebView on iOS: The `CSSGroupingRule` interface itself is not present, but many of the methods are available on various interfaces such as the `CSSMediaRule` and `CSSPageRule` interfaces.
api.CSSGroupingRule.cssRules 📋	Safari	10/26/2007	Chrome	9/1/2015	2867
api.CSSGroupingRule.deleteRule 📋	Safari	10/26/2007	Chrome	9/1/2015	2867
api.CSSGroupingRule.insertRule 📋	Safari	10/26/2007	Chrome	9/1/2015	2867
api.CSSImportRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSImportRule.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSImportRule.layerName 📋	Firefox	2/8/2022	Safari	3/14/2022	34
api.CSSImportRule.media 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSImportRule.styleSheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSImportRule.supportsText 📋	Firefox	6/6/2023	Safari	5/13/2024	342
api.CSSKeyframeRule 📋	Chrome	11/12/2013	Firefox	8/2/2016	994
api.CSSKeyframeRule.keyText 📋	Chrome	12/11/2008	Firefox	6/21/2011	922
api.CSSKeyframeRule.style 📋	Chrome	12/11/2008	Firefox	6/21/2011	922
api.CSSKeyframesRule 📋	Chrome	11/12/2013	Firefox	8/2/2016	994
api.CSSKeyframesRule.appendRule 📋	Firefox	5/14/2013	Safari	3/21/2016	1042
api.CSSKeyframesRule.cssRules 📋	Chrome	12/11/2008	Firefox	6/21/2011	922
api.CSSKeyframesRule.deleteRule 📋	Chrome	12/11/2008	Firefox	6/21/2011	922
api.CSSKeyframesRule.findRule 📋	Chrome	12/11/2008	Firefox	6/21/2011	922
api.CSSKeyframesRule.length 📋	Firefox	1/17/2023	Chrome	3/19/2024	427
api.CSSKeyframesRule.name 📋	Chrome	12/11/2008	Firefox	6/21/2011	922
api.CSSLayerBlockRule 📋	Firefox	2/8/2022	Safari	3/14/2022	34
api.CSSLayerBlockRule.name 📋	Firefox	2/8/2022	Safari	3/14/2022	34
api.CSSLayerStatementRule 📋	Firefox	2/8/2022	Safari	3/14/2022	34
api.CSSLayerStatementRule.nameList 📋	Firefox	2/8/2022	Safari	3/14/2022	34
api.CSSMediaRule 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: Before Firefox 20, `conditionText` could not be set.Firefox for Android: Before Firefox for Android 20, `conditionText` could not be set.
api.CSSMediaRule.media 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.CSSNamespaceRule 📋	Chrome	12/1/2015	Firefox	4/19/2017	505
api.CSSNamespaceRule.namespaceURI 📋	Chrome	12/1/2015	Firefox	3/13/2018	833
api.CSSNamespaceRule.prefix 📋	Chrome	12/1/2015	Firefox	3/13/2018	833
api.CSSNestedDeclarations 📋	Chrome	10/15/2024	Safari	12/11/2024	57
api.CSSNestedDeclarations.style 📋	Chrome	10/15/2024	Safari	12/11/2024	57
api.CSSPageRule 📋	Safari	10/26/2007	Firefox	2/19/2013	1943
api.CSSPageRule.selectorText 📋	Safari	10/26/2007	Firefox	2/14/2023	5590
api.CSSPageRule.style 📋	Safari	10/26/2007	Firefox	2/19/2013	1943
api.CSSPositionTryDescriptors 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.align-self 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.alignSelf 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.block-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.blockSize 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.bottom 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.height 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inline-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inlineSize 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inset 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inset-block 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inset-block-end 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inset-block-start 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inset-inline 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inset-inline-end 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.inset-inline-start 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.insetBlock 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.insetBlockEnd 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.insetBlockStart 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.insetInline 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.insetInlineEnd 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.insetInlineStart 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.justify-self 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.justifySelf 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.left 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-block 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-block-end 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-block-start 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-bottom 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-inline 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-inline-end 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-inline-start 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-left 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-right 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.margin-top 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginBlock 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginBlockEnd 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginBlockStart 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginBottom 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginInline 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginInlineEnd 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginInlineStart 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginLeft 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginRight 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.marginTop 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.max-block-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.max-height 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.max-inline-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.max-width 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.maxBlockSize 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.maxHeight 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.maxInlineSize 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.maxWidth 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.min-block-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.min-height 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.min-inline-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.min-width 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.minBlockSize 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.minHeight 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.minInlineSize 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.minWidth 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.place-self 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.placeSelf 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.position-anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.position-area 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
api.CSSPositionTryDescriptors.positionAnchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.positionArea 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
api.CSSPositionTryDescriptors.right 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.top 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryDescriptors.width 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryRule 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryRule.name 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPositionTryRule.style 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.CSSPropertyRule 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
api.CSSPropertyRule.inherits 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
api.CSSPropertyRule.initialValue 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
api.CSSPropertyRule.name 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
api.CSSPropertyRule.syntax 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
api.CSSRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSRule.cssText 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: The property normalizes rules and does not return the original verbatim rule text. For example, `border-width: 1px; border-style:solid; border-color:white;` returns `border: 1px solid white;`.
api.CSSRule.parentRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSRule.parentStyleSheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSRule.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSRuleList 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSRuleList.item 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSRuleList.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSScopeRule 📋	Chrome	10/10/2023	Firefox	12/9/2025	791
api.CSSScopeRule.end 📋	Chrome	10/10/2023	Firefox	12/9/2025	791
api.CSSScopeRule.start 📋	Chrome	10/10/2023	Firefox	12/9/2025	791
api.CSSStartingStyleRule 📋	Chrome	9/12/2023	Firefox	8/6/2024	329
api.CSSStyleDeclaration 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleDeclaration.@@iterator	Firefox	2/24/2015	Safari	9/19/2017	938
api.CSSStyleDeclaration.cssText 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleDeclaration.getPropertyPriority 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleDeclaration.getPropertyValue 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleDeclaration.item 📋	Firefox	11/9/2004	Safari	7/25/2012	2815
api.CSSStyleDeclaration.length 📋	Firefox	11/9/2004	Safari	7/25/2012	2815
api.CSSStyleDeclaration.parentRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleDeclaration.removeProperty 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleDeclaration.setProperty 📋	Firefox	11/9/2004	Safari	7/25/2012	2815
api.CSSStyleRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleRule.cssRules 📋	Chrome	4/4/2023	Firefox	8/29/2023	147
api.CSSStyleRule.deleteRule 📋	Chrome	4/4/2023	Firefox	8/29/2023	147
api.CSSStyleRule.insertRule 📋	Chrome	4/4/2023	Firefox	8/29/2023	147
api.CSSStyleRule.selectorText 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleRule.style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleSheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleSheet.CSSStyleSheet 📋	Chrome	3/12/2019	Safari	3/27/2023	1476
api.CSSStyleSheet.addRule 📋	Safari	6/23/2003	Firefox	7/9/2019	5860
api.CSSStyleSheet.cssRules 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleSheet.deleteRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleSheet.insertRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleSheet.insertRule.index_parameter_optional	Safari	6/23/2003	Firefox	8/8/2017	5160
api.CSSStyleSheet.ownerRule 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CSSStyleSheet.removeRule 📋	Safari	10/26/2007	Firefox	7/9/2019	4274
api.CSSStyleSheet.replace 📋	Chrome	3/12/2019	Safari	3/27/2023	1476	Firefox: Before Firefox 121, when calling `replace()` repeatedly, the style is applied, but the change is not reflected in the CSS Object Model. See bug 1864815.Firefox for Android: Before Firefox for Android 121, when calling `replace()` repeatedly, the style is applied, but the change is not reflected in the CSS Object Model. See bug 1864815.
api.CSSStyleSheet.replaceSync 📋	Chrome	3/12/2019	Safari	3/27/2023	1476
api.CSSStyleSheet.rules 📋	Safari	6/23/2003	Firefox	7/9/2019	5860
api.CSSSupportsRule 📋	Firefox	6/25/2013	Safari	9/30/2015	827
api.CSSTransition 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.CSSTransition.transitionProperty 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Cache 📋	Chrome	1/21/2015	Safari	4/12/2018	1177	Chrome: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Chrome Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Quest Browser: Before version 5.0, only service workers are supported. From version 5.0, all worker types and the main thread are supported.Opera: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.Opera Android: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.WebView Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.
api.Cache.add 📋	Chrome	7/21/2015	Safari	4/12/2018	996	Chrome: Requires HTTPS from version 46.Chrome Android: Requires HTTPS from version 46.Quest Browser: Requires HTTPS from version 5.0.Opera: Requires HTTPS from version 33.Opera Android: Requires HTTPS from version 33.Samsung Internet: Requires HTTPS from Samsung Internet 5.0.WebView Android: Requires HTTPS from version 46.
api.Cache.addAll 📋	Firefox	9/22/2015	Safari	4/12/2018	933	Chrome: Requires HTTPS.Chrome Android: Requires HTTPS.Quest Browser: Requires HTTPS.Opera: Requires HTTPS.Opera Android: Requires HTTPS.Samsung Internet: Requires HTTPS.WebView Android: Requires HTTPS.
api.Cache.delete 📋	Chrome	5/19/2015	Safari	4/12/2018	1059	Deno: Doesn't support query options
api.Cache.keys 📋	Chrome	5/19/2015	Safari	4/12/2018	1059
api.Cache.match 📋	Chrome	5/19/2015	Safari	4/12/2018	1059	Deno: Doesn't support query options
api.Cache.matchAll 📋	Firefox	9/22/2015	Safari	4/12/2018	933	Opera: Requires HTTPS.
api.Cache.put 📋	Chrome	5/19/2015	Safari	4/12/2018	1059	Chrome: Requires HTTPS from version 46.Chrome Android: Requires HTTPS from version 46.Quest Browser: Requires HTTPS from version 5.0.Opera: Requires HTTPS from version 33.Opera Android: Requires HTTPS from version 33.Samsung Internet: Requires HTTPS from Samsung Internet 5.0.WebView Android: Requires HTTPS from version 46.
api.Cache.worker_support	Chrome	1/21/2015	Safari	4/12/2018	1177	Chrome: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Chrome Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Quest Browser: Before version 5.0, only service workers are supported. From version 5.0, all worker types and the main thread are supported.Opera: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.Opera Android: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.WebView Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.
api.CacheStorage 📋	Chrome	5/19/2015	Safari	4/12/2018	1059	Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.CacheStorage.delete 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.CacheStorage.has 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.CacheStorage.keys 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.CacheStorage.match 📋	Firefox	9/22/2015	Safari	4/12/2018	933	Chrome: The options parameter only supports `ignoreSearch`, and `cacheName`.Chrome Android: The options parameter only supports `ignoreSearch`, and `cacheName`.Opera: The options parameter only supports `ignoreSearch`, and `cacheName`.Opera Android: The options parameter only supports `ignoreSearch`, and `cacheName`.Samsung Internet: The options parameter only supports `ignoreSearch`, and `cacheName`.WebView Android: The options parameter only supports `ignoreSearch`, and `cacheName`.
api.CacheStorage.open 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.CacheStorage.secure_context_required	Firefox	1/26/2016	Safari	4/12/2018	807
api.CacheStorage.worker_support	Chrome	5/19/2015	Safari	4/12/2018	1059	Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.CanvasGradient 📋	Safari	4/29/2005	Chrome	12/11/2008	1322	Firefox: Before Firefox 5.0, specifying non-finite values when adding color stops through a call to `addColorStop()` incorrectly throws `SYNTAX_ERR` instead of `INDEX_SIZE_ERR`.
api.CanvasGradient.addColorStop 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasPattern 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasPattern.setTransform 📋	Firefox	10/14/2014	Chrome	7/24/2018	1379
api.CanvasPattern.setTransform.dommatrix	Safari	4/12/2018	Firefox	7/28/2020	838
api.CanvasRenderingContext2D 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.arc 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.CanvasRenderingContext2D.arcTo 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.beginPath 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.bezierCurveTo 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.canvas 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.CanvasRenderingContext2D.clearRect 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.clip 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.clip.path_parameter	Safari	10/22/2013	Firefox	7/22/2014	273
api.CanvasRenderingContext2D.closePath 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.createConicGradient 📋	Chrome	3/1/2022	Firefox	4/11/2023	406	Firefox: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.Firefox for Android: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.Safari: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.Safari on iOS: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.WebView on iOS: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.
api.CanvasRenderingContext2D.createImageData 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.CanvasRenderingContext2D.createLinearGradient 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.createPattern 📋	Safari	4/29/2005	Chrome	12/11/2008	1322	Firefox: The repetition values `repeat-x` and `repeat-y` are not supported with `fill()`, only with `fillRect()`, see bug 468358.Firefox for Android: The repetition values `repeat-x` and `repeat-y` are not supported with `fill()`, only with `fillRect()`, see bug 468358.
api.CanvasRenderingContext2D.createRadialGradient 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.direction 📋	Safari	9/30/2015	Firefox	5/31/2022	2435
api.CanvasRenderingContext2D.drawFocusIfNeeded 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.CanvasRenderingContext2D.drawImage 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.drawImage.ImageBitmap_source_image	Firefox	11/3/2015	Safari	9/20/2021	2148
api.CanvasRenderingContext2D.drawImage.SVGImageElement_source_image	Chrome	6/5/2017	Safari	9/18/2023	2296
api.CanvasRenderingContext2D.ellipse 📋	Chrome	11/12/2013	Firefox	8/2/2016	994
api.CanvasRenderingContext2D.fill 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.fill.path_parameter	Safari	10/22/2013	Firefox	7/22/2014	273
api.CanvasRenderingContext2D.fillRect 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.fillStyle 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.fillText 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.CanvasRenderingContext2D.filter 📋	Chrome	7/20/2016	Safari	9/16/2024	2980
api.CanvasRenderingContext2D.font 📋	Chrome	5/21/2009	Safari	3/31/2025	5793	Safari: The `font-weight` can be set, but is not reflected back (see bug 284115).Safari on iOS: The `font-weight` can be set, but is not reflected back (see bug 284115).WebView on iOS: The `font-weight` can be set, but is not reflected back (see bug 284115).
api.CanvasRenderingContext2D.getContextAttributes 📋	Chrome	3/12/2019	Firefox	8/29/2023	1631
api.CanvasRenderingContext2D.getImageData 📋	Firefox	10/24/2006	Safari	6/8/2009	958	Firefox: Since Firefox 5, `getImageData` now correctly accepts rectangles that extend beyond the bounds of the canvas; pixels outside the canvas are returned as transparent black and now also returns at least one pixel's worth of image data if a rectangle smaller than one pixel is specified.Firefox for Android: Since Firefox for Android 5, `getImageData` now correctly accepts rectangles that extend beyond the bounds of the canvas; pixels outside the canvas are returned as transparent black and now also returns at least one pixel's worth of image data if a rectangle smaller than one pixel is specified.
api.CanvasRenderingContext2D.getLineDash 📋	Chrome	11/6/2012	Firefox	2/4/2014	455
api.CanvasRenderingContext2D.getTransform 📋	Safari	4/12/2018	Firefox	10/22/2019	558
api.CanvasRenderingContext2D.globalAlpha 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.globalCompositeOperation 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.imageSmoothingEnabled 📋	Chrome	10/1/2013	Firefox	1/24/2017	1211
api.CanvasRenderingContext2D.isPointInPath 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
api.CanvasRenderingContext2D.isPointInPath.path_parameter	Safari	10/22/2013	Firefox	7/22/2014	273
api.CanvasRenderingContext2D.isPointInStroke 📋	Firefox	2/19/2013	Safari	10/22/2013	245
api.CanvasRenderingContext2D.isPointInStroke.path_parameter	Safari	10/22/2013	Firefox	7/22/2014	273
api.CanvasRenderingContext2D.letterSpacing 📋	Chrome	3/1/2022	Safari	3/31/2025	1126
api.CanvasRenderingContext2D.lineCap 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.lineDashOffset 📋	Chrome	11/6/2012	Firefox	2/4/2014	455
api.CanvasRenderingContext2D.lineJoin 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.lineTo 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.lineWidth 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.measureText 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.CanvasRenderingContext2D.miterLimit 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.moveTo 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.putImageData 📋	Firefox	10/24/2006	Safari	6/8/2009	958
api.CanvasRenderingContext2D.quadraticCurveTo 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.CanvasRenderingContext2D.rect 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.reset 📋	Chrome	3/1/2022	Safari	12/11/2023	650
api.CanvasRenderingContext2D.resetTransform 📋	Chrome	11/12/2013	Safari	3/27/2017	1231
api.CanvasRenderingContext2D.restore 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.rotate 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.roundRect 📋	Chrome	3/1/2022	Firefox	4/11/2023	406
api.CanvasRenderingContext2D.save 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.scale 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.setLineDash 📋	Chrome	11/6/2012	Firefox	2/4/2014	455
api.CanvasRenderingContext2D.setTransform 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.CanvasRenderingContext2D.setTransform.matrix_parameter	Safari	4/12/2018	Firefox	10/22/2019	558
api.CanvasRenderingContext2D.shadowBlur 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.shadowColor 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.shadowOffsetX 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.shadowOffsetY 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.stroke 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.stroke.path_parameter	Safari	10/22/2013	Firefox	7/22/2014	273
api.CanvasRenderingContext2D.strokeRect 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.strokeStyle 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.strokeText 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.CanvasRenderingContext2D.textAlign 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.CanvasRenderingContext2D.textBaseline 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.CanvasRenderingContext2D.transform 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.CanvasRenderingContext2D.translate 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.CanvasRenderingContext2D.wordSpacing 📋	Chrome	3/1/2022	Safari	3/31/2025	1126
api.CaretPosition 📋	Firefox	4/2/2013	Safari	12/12/2025	4637
api.CaretPosition.getClientRect 📋	Firefox	8/6/2013	Safari	12/12/2025	4511
api.CaretPosition.offset 📋	Firefox	4/2/2013	Safari	12/12/2025	4637
api.CaretPosition.offsetNode 📋	Firefox	4/2/2013	Safari	12/12/2025	4637
api.ChannelMergerNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.ChannelMergerNode.ChannelMergerNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.ChannelSplitterNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774	Chrome: Starting in Chrome 56, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec.Chrome Android: Starting in Chrome Android 56, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec.Quest Browser: Starting in Quest Browser 5.0, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec.Opera: Starting in Opera 43, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec.Opera Android: Starting in Opera Android 43, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec.Samsung Internet: Starting in Samsung Internet 6.0, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec.WebView Android: Starting in version 56, `channelCountMode` is set to `explicit` and `channelCount` is fixed to the number of outputs, as per the latest spec.
api.ChannelSplitterNode.ChannelSplitterNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.CharacterData 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CharacterData.after 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.CharacterData.appendData 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CharacterData.before 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.CharacterData.data 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CharacterData.deleteData 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CharacterData.insertData 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CharacterData.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CharacterData.nextElementSibling 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.CharacterData.previousElementSibling 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.CharacterData.remove 📋	Chrome	1/10/2013	Safari	10/22/2013	285
api.CharacterData.replaceData 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.CharacterData.replaceWith 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.CharacterData.substringData 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Client 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.Client.frameType 📋	Chrome	5/19/2015	Safari	4/12/2018	1059
api.Client.id 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.Client.postMessage 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.Client.type 📋	Firefox	6/13/2017	Safari	4/12/2018	303
api.Client.url 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.Clients 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.Clients.claim 📋	Chrome	4/14/2015	Safari	4/12/2018	1094
api.Clients.get 📋	Firefox	3/8/2016	Safari	4/12/2018	765
api.Clients.matchAll 📋	Chrome	4/14/2015	Safari	4/12/2018	1094	Chrome: `Client` objects returned in most recent focus order.Chrome Android: `Client` objects returned in most recent focus order.Edge: `Client` objects returned in most recent focus order.Firefox: Before Firefox 54, `Client` objects were not returned in the most recent focus order as required by the specification.Firefox for Android: Before Firefox for Android 54, `Client` objects were not returned in the most recent focus order as required by the specification.Quest Browser: `Client` objects returned in most recent focus order.Samsung Internet: `Client` objects returned in most recent focus order.WebView Android: `Client` objects returned in most recent focus order.
api.Clients.matchAll.options_includeUncontrolled_parameter 📋	Chrome	4/14/2015	Safari	4/12/2018	1094	Chrome: `Client` objects returned in most recent focus order.Chrome Android: `Client` objects returned in most recent focus order.Edge: `Client` objects returned in most recent focus order.Quest Browser: `Client` objects returned in most recent focus order.Samsung Internet: `Client` objects returned in most recent focus order.WebView Android: `Client` objects returned in most recent focus order.
api.Clients.openWindow 📋	Chrome	1/21/2015	Safari	4/12/2018	1177	Chrome: Before Chrome 43, this method could only open URLs on the same origin.Chrome: Since Chrome 51, URLs may open inside an existing browsing context provided by a standalone web app.Chrome Android: Before Chrome Android 43, this method could only open URLs on the same origin.Chrome Android: Since Chrome Android 51, URLs may open inside an existing browsing context provided by a standalone web app.Quest Browser: Before Quest Browser 5.0, this method could only open URLs on the same origin.Quest Browser: Since Quest Browser 5.0, URLs may open inside an existing browsing context provided by a standalone web app.Samsung Internet: Before Samsung Internet 4.0, this method could only open URLs on the same origin.Samsung Internet: Since Samsung Internet 5.0, URLs may open inside an existing browsing context provided by a standalone web app.WebView Android: Before WebView Android 43, this method could only open URLs on the same origin.WebView Android: Since WebView Android 51, URLs may open inside an existing browsing context provided by a standalone web app.
api.Clipboard 📋	Chrome	4/17/2018	Safari	3/24/2020	707
api.Clipboard.read 📋	Chrome	7/30/2019	Firefox	6/11/2024	1778	Chrome: The user must grant the `clipboard-read` permission.Chrome Android: The user must grant the `clipboard-read` permission.Edge: The user must grant the `clipboard-read` permission.Firefox: This method must be called within user gesture event handlers.Firefox: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox: Web extensions with the `clipboardRead` permission in their manifest can read data without the paste prompt displaying. Prior to Firefox 147, extensions without this permission were unable to read clipboard data.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox for Android: Web extensions with the `clipboardRead` permission in their manifest can read data without the paste prompt displaying. Prior to Firefox for Android 147, extensions without this permission were unable to read clipboard data.Quest Browser: The user must grant the `clipboard-read` permission.Opera: The user must grant the `clipboard-read` permission.Opera Android: The user must grant the `clipboard-read` permission.Samsung Internet: The user must grant the `clipboard-read` permission.WebView Android: The user must grant the `clipboard-read` permission.
api.Clipboard.readText 📋	Chrome	4/17/2018	Firefox	4/16/2024	2191	Chrome: The user must grant the `clipboard-read` permission.Chrome Android: The user must grant the `clipboard-read` permission.Edge: The user must grant the `clipboard-read` permission.Firefox: This method must be called within user gesture event handlers.Firefox: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox: Web extensions with the `clipboardRead` permission in their manifest can read data without the paste prompt displaying. Prior to Firefox 147, extensions without this permission were unable to read clipboard data.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox for Android: Web extensions with the `clipboardRead` permission in their manifest can read data without the paste prompt displaying. Prior to Firefox for Android 147, extensions without this permission were unable to read clipboard data.Quest Browser: The user must grant the `clipboard-read` permission.Opera: The user must grant the `clipboard-read` permission.Opera Android: The user must grant the `clipboard-read` permission.Samsung Internet: The user must grant the `clipboard-read` permission.WebView Android: The user must grant the `clipboard-read` permission.
api.Clipboard.type_image-png	Chrome	7/30/2019	Firefox	6/11/2024	1778
api.Clipboard.type_text-html	Safari	3/24/2020	Firefox	6/11/2024	1540
api.Clipboard.type_text-plain	Chrome	7/30/2019	Firefox	6/11/2024	1778
api.Clipboard.write 📋	Chrome	7/30/2019	Firefox	6/11/2024	1778	Chrome: From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Chrome: Before version 107, the user must grant the `clipboard-write` permission.Chrome Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Chrome Android: Before version 107, the user must grant the `clipboard-write` permission.Firefox: This method must be called within user gesture event handlers.Firefox: Web extensions with the `clipboardWrite` permission in their manifest can write data without a user gesture.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: Web extensions with the `clipboardWrite` permission in their manifest can write data without a user gesture.Quest Browser: From version false, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Quest Browser: Before version false, the user must grant the `clipboard-write` permission.Opera: From version 93, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Opera: Before version 93, the user must grant the `clipboard-write` permission.Opera Android: From version 73, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Opera Android: Before version 73, the user must grant the `clipboard-write` permission.Samsung Internet: From version 21.0, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Samsung Internet: Before version 21.0, the user must grant the `clipboard-write` permission.WebView Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.WebView Android: Before version 107, the user must grant the `clipboard-write` permission.
api.Clipboard.writeText 📋	Chrome	4/17/2018	Safari	3/24/2020	707	Chrome: From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Chrome: Before version 107, the user must grant the `clipboard-write` permission.Chrome Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Chrome Android: Before version 107, the user must grant the `clipboard-write` permission.Edge: From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Edge: Before version 107, the user must grant the `clipboard-write` permission.Firefox: This method must be called within user gesture event handlers.Firefox: Web extensions with the `clipboardWrite` permission in their manifest can write data without a user gesture.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: Web extensions with the `clipboardWrite` permission in their manifest can write data without a user gesture.Quest Browser: From version false, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Quest Browser: Before version false, the user must grant the `clipboard-write` permission.Opera: From version 93, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Opera: Before version 93, the user must grant the `clipboard-write` permission.Opera Android: From version 73, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Opera Android: Before version 73, the user must grant the `clipboard-write` permission.Safari: This method must be called within user gesture event handlers.Safari on iOS: This method must be called within user gesture event handlers.Samsung Internet: From version 21.0, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.Samsung Internet: Before version 21.0, the user must grant the `clipboard-write` permission.WebView Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the `clipboard-write` permission.WebView Android: Before version 107, the user must grant the `clipboard-write` permission.WebView on iOS: This method must be called within user gesture event handlers.
api.ClipboardEvent 📋	Firefox	6/25/2013	Safari	3/27/2017	1371	Firefox: When pasting multiple files, only returns the first file. See bug 1954680.Firefox: Before Firefox 140, when pasting multiple files, and the first file was not acceptable, returned no file. See bug 1961170.Firefox for Android: When pasting multiple files, only returns the first file. See bug 1954680.Firefox for Android: Before Firefox for Android 140, when pasting multiple files, and the first file was not acceptable, returned no file. See bug 1961170.
api.ClipboardEvent.ClipboardEvent 📋	Firefox	6/25/2013	Chrome	4/19/2017	1394
api.ClipboardEvent.clipboardData 📋	Firefox	6/25/2013	Safari	3/27/2017	1371
api.ClipboardItem 📋	Chrome	7/30/2019	Firefox	6/11/2024	1778
api.ClipboardItem.ClipboardItem 📋	Safari	3/24/2020	Chrome	2/4/2025	1778	Chrome: Only accepts a `Blob` or a Promise resolving to a `Blob` as the item data.Chrome: Only accepts a `Blob` as the item data. See bug 40103226.Chrome Android: The `ClipboardItem` constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.Edge: Only accepts a `Blob` or a Promise resolving to a `Blob` as the item data.Edge: Only accepts a `Blob` as the item data. See bug 40103226.Quest Browser: The `ClipboardItem` constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.Opera: Only accepts a `Blob` or a Promise resolving to a `Blob` as the item data.Opera: Only accepts a `Blob` as the item data. See bug 40103226.Opera Android: The `ClipboardItem` constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.Samsung Internet: The `ClipboardItem` constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.WebView Android: The `ClipboardItem` constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.
api.ClipboardItem.getType 📋	Chrome	7/30/2019	Firefox	6/11/2024	1778
api.ClipboardItem.supports_static 📋	Chrome	1/23/2024	Safari	3/31/2025	433
api.ClipboardItem.types 📋	Chrome	7/30/2019	Firefox	6/11/2024	1778
api.CloseEvent 📋	Chrome	10/25/2011	Safari	7/25/2012	274	Firefox: Before Firefox 12, the close code `CLOSE_NORMAL` was used when the channel was closed due to an unexpected error or unspecified error condition.Firefox: Before Firefox 8, the `WebSocket` close event was sent to the listener as a simple event.
api.CloseEvent.CloseEvent 📋	Chrome	12/13/2011	Safari	7/25/2012	225
api.CloseEvent.code 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.CloseEvent.reason 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.CloseEvent.wasClean 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.CommandEvent 📋	Chrome	4/1/2025	Safari	12/12/2025	255
api.CommandEvent.CommandEvent	Chrome	4/1/2025	Safari	12/12/2025	255
api.CommandEvent.command 📋	Chrome	4/1/2025	Safari	12/12/2025	255
api.CommandEvent.source 📋	Chrome	4/1/2025	Safari	12/12/2025	255
api.Comment 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Comment.Comment 📋	Chrome	8/20/2013	Safari	10/16/2014	422
api.CompositionEvent 📋	Safari	6/7/2010	Firefox	12/20/2011	561
api.CompositionEvent.CompositionEvent 📋	Chrome	3/26/2013	Firefox	4/19/2017	1485
api.CompositionEvent.data 📋	Safari	6/7/2010	Firefox	12/20/2011	561
api.CompositionEvent.initCompositionEvent 📋	Safari	6/7/2010	Firefox	12/20/2011	561
api.CompressionStream 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190	Node.js: Available as a part of the `stream/web` module.
api.CompressionStream.CompressionStream 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.CompressionStream.CompressionStream.deflate 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.CompressionStream.CompressionStream.deflate-raw 📋	Chrome	6/21/2022	Firefox	5/9/2023	322
api.CompressionStream.CompressionStream.gzip 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.CompressionStream.readable 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.CompressionStream.writable 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.ConstantSourceNode 📋	Chrome	1/25/2017	Safari	4/26/2021	1552
api.ConstantSourceNode.ConstantSourceNode 📋	Chrome	1/25/2017	Safari	4/26/2021	1552
api.ConstantSourceNode.offset 📋	Chrome	1/25/2017	Safari	4/26/2021	1552
api.ContentVisibilityAutoStateChangeEvent 📋	Chrome	11/29/2022	Safari	9/16/2024	657
api.ContentVisibilityAutoStateChangeEvent.ContentVisibilityAutoStateChangeEvent 📋	Chrome	11/29/2022	Safari	9/16/2024	657
api.ContentVisibilityAutoStateChangeEvent.skipped 📋	Chrome	11/29/2022	Safari	9/16/2024	657
api.ConvolverNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.ConvolverNode.ConvolverNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.ConvolverNode.buffer 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.ConvolverNode.normalize 📋	Chrome	3/28/2012	Firefox	10/29/2013	580
api.CookieChangeEvent 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieChangeEvent.CookieChangeEvent 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieChangeEvent.changed 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieChangeEvent.deleted 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore.change_event 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore.delete 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore.get 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore.get.name_return_property 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore.get.value_return_property 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore.getAll 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CookieStore.set 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.CountQueuingStrategy 📋	Chrome	7/20/2016	Firefox	1/29/2019	923	Node.js: Available as a part of the `stream/web` module.
api.CountQueuingStrategy.CountQueuingStrategy 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.CountQueuingStrategy.highWaterMark 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.CountQueuingStrategy.size 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.Credential 📋	Chrome	5/25/2016	Safari	9/19/2019	1212
api.Credential.id 📋	Chrome	5/25/2016	Safari	9/19/2019	1212
api.Credential.type 📋	Chrome	5/25/2016	Safari	9/19/2019	1212
api.CredentialsContainer 📋	Chrome	5/25/2016	Safari	9/19/2019	1212
api.CredentialsContainer.create 📋	Chrome	7/25/2017	Safari	9/19/2019	786
api.CredentialsContainer.create.publicKey_option 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.create.publicKey_option.attestation 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.create.publicKey_option.attestation.direct 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox for Android: `credentialCreationData.attestationConveyancePreferenceOption` value "direct" is not supported. See https://bugzil.la/1550164
api.CredentialsContainer.create.publicKey_option.attestation.enterprise 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox for Android: `credentialCreationData.attestationConveyancePreferenceOption` value "enterprise" is not supported. See https://bugzil.la/1550164
api.CredentialsContainer.create.publicKey_option.attestation.indirect 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.create.publicKey_option.attestation.none 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.create.publicKey_option.extensions 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.create.publicKey_option.extensions.appidExclude 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.create.publicKey_option.extensions.largeBlob 📋	Chrome	5/2/2023	Firefox	5/27/2025	756
api.CredentialsContainer.create.publicKey_option.extensions.prf 📋	Chrome	8/15/2023	Firefox	5/27/2025	651	Firefox: Not supported on macOS.
api.CredentialsContainer.get 📋	Chrome	5/25/2016	Safari	9/19/2019	1212
api.CredentialsContainer.get.publicKey_option 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.get.publicKey_option.extensions 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.get.publicKey_option.extensions.appid 📋	Firefox	5/9/2018	Safari	9/19/2019	498
api.CredentialsContainer.preventSilentAccess 📋	Chrome	7/25/2017	Safari	9/18/2023	2246	Safari: This method exists, but always rejected with a `NotSupportedError` exception.Safari on iOS: This method exists, but always rejected with a `NotSupportedError` exception.WebView on iOS: This method exists, but always rejected with a `NotSupportedError` exception.
api.CredentialsContainer.store 📋	Chrome	5/25/2016	Safari	9/19/2019	1212
api.Crypto 📋	Safari	6/7/2010	Firefox	5/14/2013	1072	Deno: `Crypto` is not a concrete interface, but its methods are available on `Window.crypto`.Node.js: Available as a part of the `crypto` module.
api.Crypto.getRandomValues 📋	Safari	6/7/2010	Firefox	5/14/2013	1072	Node.js: Since v17.4.0, a similar method is available via the `crypto` module.
api.Crypto.randomUUID 📋	Chrome	7/20/2021	Safari	3/14/2022	237	Node.js: Since 14.17.0 and 15.6.0, a similar method is available via the `crypto` module.
api.Crypto.subtle 📋	Chrome	8/26/2014	Safari	9/19/2017	1120
api.Crypto.subtle.secure_context_required	Chrome	7/25/2017	Safari	9/20/2021	1518
api.CryptoKey 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Node.js: Available as a part of the `crypto` module.
api.CryptoKey.algorithm 📋	Safari	10/22/2013	Firefox	12/1/2014	405
api.CryptoKey.extractable 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: The only supported value for this property is `true`.
api.CryptoKey.type 📋	Safari	10/22/2013	Firefox	12/1/2014	405
api.CryptoKey.usages 📋	Safari	10/22/2013	Firefox	12/1/2014	405
api.CustomElementRegistry 📋	Chrome	10/12/2016	Firefox	10/23/2018	741
api.CustomElementRegistry.define 📋	Chrome	10/12/2016	Firefox	10/23/2018	741
api.CustomElementRegistry.get 📋	Chrome	10/12/2016	Firefox	10/23/2018	741	Safari: Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See bug 182671.Safari on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See bug 182671.WebView on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See bug 182671.
api.CustomElementRegistry.getName 📋	Firefox	8/1/2023	Safari	9/18/2023	48	Safari: Supports 'Autonomous custom elements' but not 'Customized built-in elements'.Safari on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'.WebView on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'.
api.CustomElementRegistry.upgrade 📋	Chrome	7/24/2018	Safari	3/25/2019	244
api.CustomElementRegistry.whenDefined 📋	Chrome	10/12/2016	Firefox	10/23/2018	741
api.CustomEvent 📋	Chrome	5/25/2010	Firefox	8/16/2011	448
api.CustomEvent.CustomEvent 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.CustomEvent.detail 📋	Chrome	5/25/2010	Firefox	8/16/2011	448
api.CustomEvent.initCustomEvent 📋	Chrome	5/25/2010	Firefox	8/16/2011	448
api.CustomEvent.worker_support	Chrome	5/19/2015	Safari	9/17/2018	1217
api.CustomStateSet 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.@@iterator 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.add 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.clear 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.delete 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.entries 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.forEach 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.has 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.keys 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.size 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.CustomStateSet.values 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.DOMException 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.DOMException.DOMException 📋	Firefox	3/31/2015	Safari	3/27/2017	727
api.DOMException.code 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.DOMException.message 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.DOMException.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.DOMImplementation 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.DOMImplementation.createDocument 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.DOMImplementation.createDocumentType 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.DOMImplementation.createHTMLDocument 📋	Safari	6/23/2003	Firefox	3/22/2011	2829	Internet Explorer: The `title` parameter is required, but can be empty string.
api.DOMImplementation.hasFeature 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Since Firefox 19, `hasFeature()` mostly returns `true`.
api.DOMMatrix 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.DOMMatrix 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.a 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.b 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.c 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.d 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.e 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.f 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.fromFloat32Array_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMMatrix.fromFloat64Array_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMMatrix.fromMatrix_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMMatrix.invertSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m11 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m12 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m13 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m14 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m21 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m22 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m23 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m24 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m31 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m32 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m33 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m34 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m41 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m42 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m43 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.m44 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.multiplySelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.preMultiplySelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.rotateAxisAngleSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.rotateFromVectorSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.rotateSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.scale3dSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071	Firefox: Starting in Firefox 69, the first parameter (`scale`) is now optional with a default value of 1, per the specification. Previously it was required.Firefox for Android: Starting in Firefox for Android 79, the first parameter (`scale`) is now optional with a default value of 1, per the specification. Previously it was required.
api.DOMMatrix.scaleSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071	Firefox: Firefox 69 introduced support for the modern six-parameter syntax for `scaleSelf()`. Previously, it only supported the older three-parameter syntax: `scale(scaleX[, originX][, originY]]])`.Firefox for Android: Firefox for Android 79 introduced support for the modern six-parameter syntax for `scaleSelf()`. Previously, it only supported the older three-parameter syntax: `scale(scaleX[, originX][, originY]]])`.
api.DOMMatrix.setMatrixValue 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.skewXSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.skewYSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.translateSelf 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrix.worker_support	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMMatrixReadOnly 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.DOMMatrixReadOnly 📋	Chrome	9/5/2017	Firefox	9/5/2018	365
api.DOMMatrixReadOnly.a 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.b 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.c 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.d 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.e 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.f 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.flipX 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.flipY 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.fromFloat32Array_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMMatrixReadOnly.fromFloat64Array_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMMatrixReadOnly.fromMatrix_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMMatrixReadOnly.inverse 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.is2D 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.isIdentity 📋	Chrome	9/5/2017	Firefox	3/13/2018	189
api.DOMMatrixReadOnly.m11 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m12 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m13 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m14 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m21 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m22 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m23 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m24 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m31 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m32 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m33 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m34 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m41 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m42 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m43 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.m44 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.multiply 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.rotate 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.rotateAxisAngle 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.rotateFromVector 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.scale 📋	Firefox	10/14/2014	Safari	9/19/2017	1071	Firefox: Firefox 69 introduced support for the modern six-parameter syntax for `scale()`. Previously, it only supported the older three-parameter syntax: `scale(scaleX[, originX][, originY]]])`.Firefox for Android: Firefox for Android 79 introduced support for the modern six-parameter syntax for `scale()`. Previously, it only supported the older three-parameter syntax: `scale(scaleX[, originX][, originY]]])`.
api.DOMMatrixReadOnly.scale3d 📋	Firefox	10/14/2014	Safari	9/19/2017	1071	Firefox: Starting in Firefox 69, the first parameter (`scale`) is now optional with a default value of 1, per the specification. Previously it was required.Firefox for Android: Starting in Firefox for Android 79, the first parameter (`scale`) is now optional with a default value of 1, per the specification. Previously it was required.
api.DOMMatrixReadOnly.scaleNonUniform 📋	Firefox	10/14/2014	Safari	3/5/2024	3430
api.DOMMatrixReadOnly.skewX 📋	Firefox	10/14/2014	Safari	9/19/2017	1071	Firefox: Before Firefox 69, the `sx` parameter was required; you may now call `skewX()` with no inputs. A value of 0 is correctly assumed.Firefox for Android: Before Firefox for Android 79, the `sx` parameter was required; you may now call `skewX()` with no inputs. A value of 0 is correctly assumed.
api.DOMMatrixReadOnly.skewY 📋	Firefox	10/14/2014	Safari	9/19/2017	1071	Firefox: Before Firefox 69, the `sy` parameter was required; you may now call `skewY()` with no inputs. A value of 0 is correctly assumed.Firefox for Android: Before Firefox for Android 79, the `sy` parameter was required; you may now call `skewY()` with no inputs. A value of 0 is correctly assumed.
api.DOMMatrixReadOnly.toFloat32Array 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.toFloat64Array 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.toJSON 📋	Chrome	9/5/2017	Firefox	9/5/2018	365
api.DOMMatrixReadOnly.toString	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.transformPoint 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.translate 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.DOMMatrixReadOnly.worker_support	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMParser 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DOMParser.DOMParser 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DOMParser.parseFromString 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DOMParser.parseFromString.html	Firefox	4/24/2012	Safari	3/21/2016	1427
api.DOMParser.parseFromString.svg	Safari	10/26/2007	Firefox	1/31/2012	1558
api.DOMParser.parseFromString.xml	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DOMPoint 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPoint.DOMPoint 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPoint.fromPoint_static 📋	Safari	3/27/2017	Firefox	9/5/2018	527
api.DOMPoint.w 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPoint.worker_support	Safari	3/27/2017	Firefox	9/3/2019	890
api.DOMPoint.x 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPoint.y 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPoint.z 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPointReadOnly 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPointReadOnly.DOMPointReadOnly 📋	Safari	3/27/2017	Firefox	9/5/2018	527
api.DOMPointReadOnly.fromPoint_static 📋	Safari	3/27/2017	Firefox	9/5/2018	527
api.DOMPointReadOnly.matrixTransform 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMPointReadOnly.toJSON 📋	Safari	3/27/2017	Firefox	9/5/2018	527
api.DOMPointReadOnly.w 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPointReadOnly.worker_support	Safari	3/27/2017	Firefox	9/3/2019	890
api.DOMPointReadOnly.x 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPointReadOnly.y 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMPointReadOnly.z 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMQuad 📋	Firefox	7/22/2014	Safari	9/19/2017	1155
api.DOMQuad.DOMQuad 📋	Firefox	7/22/2014	Safari	9/19/2017	1155
api.DOMQuad.fromQuad_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMQuad.fromRect_static 📋	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMQuad.getBounds 📋	Chrome	9/5/2017	Firefox	9/5/2018	365
api.DOMQuad.p1 📋	Firefox	7/22/2014	Safari	9/19/2017	1155	Firefox: Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.Firefox for Android: Before Firefox for Android 79, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.
api.DOMQuad.p2 📋	Firefox	7/22/2014	Safari	9/19/2017	1155	Firefox: Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.Firefox for Android: Before Firefox for Android 79, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.
api.DOMQuad.p3 📋	Firefox	7/22/2014	Safari	9/19/2017	1155	Firefox: Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.Firefox for Android: Before Firefox for Android 79, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.
api.DOMQuad.p4 📋	Firefox	7/22/2014	Safari	9/19/2017	1155	Firefox: Before Firefox 69, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.Firefox for Android: Before Firefox for Android 79, the default value of `p1` through `p4` was undefined; now `DOMQuadInit` defines these as `false`.
api.DOMQuad.toJSON 📋	Chrome	9/5/2017	Firefox	9/5/2018	365
api.DOMQuad.worker_support	Chrome	9/5/2017	Firefox	9/3/2019	728
api.DOMRect 📋	Firefox	2/4/2014	Chrome	9/5/2017	1309
api.DOMRect.DOMRect 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMRect.fromRect_static 📋	Safari	3/27/2017	Firefox	9/3/2019	890
api.DOMRect.height 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRect.width 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRect.worker_support	Safari	3/27/2017	Firefox	9/3/2019	890
api.DOMRect.x 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMRect.y 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMRectList 📋	Firefox	2/4/2014	Chrome	9/5/2017	1309
api.DOMRectList.item 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectList.length 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectReadOnly 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMRectReadOnly.DOMRectReadOnly 📋	Safari	3/27/2017	Firefox	9/5/2018	527
api.DOMRectReadOnly.bottom 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectReadOnly.fromRect_static 📋	Safari	3/27/2017	Firefox	9/3/2019	890
api.DOMRectReadOnly.height 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectReadOnly.left 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectReadOnly.right 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectReadOnly.toJSON 📋	Safari	3/27/2017	Firefox	9/5/2018	527
api.DOMRectReadOnly.top 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectReadOnly.width 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.DOMRectReadOnly.worker_support	Safari	3/27/2017	Firefox	9/3/2019	890
api.DOMRectReadOnly.x 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMRectReadOnly.y 📋	Firefox	7/22/2014	Chrome	9/5/2017	1141
api.DOMStringList 📋	Firefox	11/9/2004	Safari	7/20/2011	2444
api.DOMStringList.contains 📋	Firefox	11/29/2005	Safari	7/20/2011	2059
api.DOMStringList.item 📋	Firefox	11/9/2004	Safari	7/20/2011	2444
api.DOMStringList.length 📋	Firefox	11/9/2004	Safari	7/20/2011	2444
api.DOMStringMap 📋	Chrome	10/19/2010	Firefox	8/16/2011	301
api.DOMTokenList 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.@@iterator	Firefox	2/24/2015	Safari	3/27/2017	762
api.DOMTokenList.add 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.add.multiple_parameters	Chrome	1/10/2013	Firefox	12/10/2013	334
api.DOMTokenList.contains 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.entries	Chrome	4/14/2015	Safari	3/27/2017	713
api.DOMTokenList.forEach	Chrome	4/14/2015	Safari	3/27/2017	713
api.DOMTokenList.item 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.keys	Chrome	4/14/2015	Safari	3/27/2017	713
api.DOMTokenList.length 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.remove 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.remove.multiple_parameters	Chrome	1/10/2013	Firefox	12/10/2013	334
api.DOMTokenList.remove_duplicates	Safari	9/20/2016	Firefox	8/8/2017	322
api.DOMTokenList.replace 📋	Firefox	9/20/2016	Chrome	9/5/2017	350
api.DOMTokenList.replace.boolean_value	Chrome	5/29/2018	Safari	9/17/2018	111
api.DOMTokenList.supports 📋	Chrome	3/2/2016	Safari	3/27/2017	390
api.DOMTokenList.toString 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.toggle 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.DOMTokenList.toggle.force_parameter	Chrome	1/10/2013	Safari	10/22/2013	285
api.DOMTokenList.trim_whitespace	Chrome	1/20/2016	Firefox	1/24/2017	370
api.DOMTokenList.value 📋	Chrome	4/13/2016	Safari	9/20/2016	160	Chrome: Before Chrome 50, this property was part of the deprecated child `DOMSettableTokenList` interface.Chrome Android: Before Chrome Android 50, this property was part of the deprecated child `DOMSettableTokenList` interface.Quest Browser: Before Quest Browser 5.0, this property was part of the deprecated child `DOMSettableTokenList` interface.Opera: Before Opera 37, this property was part of the deprecated child `DOMSettableTokenList` interface.Opera Android: Before Opera Android 37, this property was part of the deprecated child `DOMSettableTokenList` interface.Samsung Internet: Before Samsung Internet 5.0, this property was part of the deprecated child `DOMSettableTokenList` interface.WebView Android: Before WebView Android 50, this property was part of the deprecated child `DOMSettableTokenList` interface.
api.DOMTokenList.values	Chrome	4/14/2015	Safari	3/27/2017	713
api.DataTransfer 📋	Safari	6/8/2009	Chrome	9/15/2009	99	Firefox: As of Firefox 52, the `DataTransfer.types` property returns a frozen array of `DOMString`s as per spec, rather than a `DOMStringList`.Firefox for Android: As of Firefox for Android 52, the `DataTransfer.types` property returns a frozen array of `DOMString`s as per spec, rather than a `DOMStringList`.
api.DataTransfer.DataTransfer 📋	Chrome	6/5/2017	Safari	4/26/2021	1421
api.DataTransfer.clearData 📋	Safari	6/8/2009	Chrome	9/15/2009	99
api.DataTransfer.dropEffect 📋	Safari	6/8/2009	Chrome	9/15/2009	99
api.DataTransfer.effectAllowed 📋	Safari	6/8/2009	Chrome	9/15/2009	99
api.DataTransfer.files 📋	Safari	6/8/2009	Firefox	1/21/2010	227
api.DataTransfer.getData 📋	Safari	6/8/2009	Chrome	9/15/2009	99
api.DataTransfer.items 📋	Chrome	9/15/2009	Safari	4/12/2018	3131
api.DataTransfer.setData 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.DataTransfer.setDragImage 📋	Safari	6/8/2009	Chrome	9/15/2009	99
api.DataTransfer.types 📋	Safari	6/8/2009	Chrome	9/15/2009	99	Internet Explorer: The property returns a `DOMStringList`.Internet Explorer: `Text` is returned instead of `text/plain`Opera: As of Opera 12, `Text` is returned instead of `text/plain`
api.DataTransferItem 📋	Chrome	4/27/2011	Firefox	11/15/2016	2029
api.DataTransferItem.getAsFile 📋	Chrome	4/27/2011	Firefox	11/15/2016	2029
api.DataTransferItem.getAsString 📋	Chrome	4/27/2011	Firefox	11/15/2016	2029
api.DataTransferItem.kind 📋	Chrome	4/27/2011	Firefox	11/15/2016	2029
api.DataTransferItem.type 📋	Chrome	4/27/2011	Firefox	11/15/2016	2029
api.DataTransferItem.webkitGetAsEntry 📋	Chrome	8/2/2011	Safari	4/12/2018	2445
api.DataTransferItemList 📋	Chrome	8/2/2011	Firefox	11/15/2016	1932
api.DataTransferItemList.add 📋	Chrome	8/2/2011	Firefox	11/15/2016	1932
api.DataTransferItemList.clear 📋	Chrome	8/2/2011	Firefox	11/15/2016	1932
api.DataTransferItemList.length 📋	Chrome	8/2/2011	Firefox	11/15/2016	1932
api.DataTransferItemList.remove 📋	Safari	7/25/2012	Firefox	11/15/2016	1574
api.DecompressionStream 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190	Node.js: Available as a part of the `stream/web` module.
api.DecompressionStream.DecompressionStream 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.DecompressionStream.DecompressionStream.deflate 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.DecompressionStream.DecompressionStream.deflate-raw 📋	Chrome	6/21/2022	Firefox	5/9/2023	322
api.DecompressionStream.DecompressionStream.gzip 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.DecompressionStream.readable 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.DecompressionStream.writable 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.DedicatedWorkerGlobalScope 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.DedicatedWorkerGlobalScope.cancelAnimationFrame 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.DedicatedWorkerGlobalScope.close 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.DedicatedWorkerGlobalScope.message_event 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.DedicatedWorkerGlobalScope.messageerror_event 📋	Chrome	7/25/2017	Safari	3/27/2023	2071
api.DedicatedWorkerGlobalScope.name 📋	Firefox	8/8/2017	Safari	3/25/2019	594
api.DedicatedWorkerGlobalScope.postMessage 📋	Safari	6/8/2009	Chrome	1/25/2010	231	Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown.Deno: The `message` parameter does not support cloning `SharedArrayBuffer` or `Blob` values.Deno: The `transfer` parameter is ignored.Deno: Data passed in the `message` parameter is serialized with JSON, not the structured clone algorithm.Deno: The `transfer` parameter is ignored.
api.DedicatedWorkerGlobalScope.requestAnimationFrame 📋	Chrome	9/4/2018	Safari	3/27/2023	1665	Chrome: Not supported in nested Web Workers. See bug 41483010.Chrome Android: Not supported in nested Web Workers. See bug 41483010.Edge: Not supported in nested Web Workers. See bug 41483010.Quest Browser: Not supported in nested Web Workers. See bug 41483010.Opera: Not supported in nested Web Workers. See bug 41483010.Opera Android: Not supported in nested Web Workers. See bug 41483010.Samsung Internet: Not supported in nested Web Workers. See bug 41483010.
api.DedicatedWorkerGlobalScope.rtctransform_event 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.DelayNode 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.DelayNode.DelayNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.DelayNode.delayTime 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.DeviceMotionEvent 📋	Firefox	8/16/2011	Safari	9/18/2023	4416
api.DeviceMotionEvent.acceleration 📋	Firefox	8/16/2011	Safari	9/18/2023	4416
api.DeviceMotionEvent.accelerationIncludingGravity 📋	Firefox	8/16/2011	Safari	9/18/2023	4416
api.DeviceMotionEvent.interval 📋	Firefox	8/16/2011	Safari	9/18/2023	4416
api.DeviceMotionEvent.rotationRate 📋	Firefox	8/16/2011	Safari	9/18/2023	4416
api.DeviceOrientationEvent 📋	Chrome	10/19/2010	Safari	9/18/2023	4717	Chrome: Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event.Chrome Android: Before version 50, Chrome Android provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event.Firefox: Firefox 3.6, 4, and 5 supported `mozOrientation` instead of the standard DeviceOrientationEvent interface.Firefox for Android: Firefox for Android 4.6, 4, and 5 supported `mozOrientation` instead of the standard DeviceOrientationEvent interface.Quest Browser: Before version 5.0, Quest Browser provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event.Samsung Internet: Before Samsung Internet 5.0, Samsung Internet provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event.WebView Android: Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the `deviceorientationabsolute` event.
api.DeviceOrientationEvent.absolute 📋	Chrome	10/19/2010	Safari	9/18/2023	4717
api.DeviceOrientationEvent.alpha 📋	Chrome	10/19/2010	Safari	9/18/2023	4717
api.DeviceOrientationEvent.beta 📋	Chrome	10/19/2010	Safari	9/18/2023	4717
api.DeviceOrientationEvent.gamma 📋	Chrome	10/19/2010	Safari	9/18/2023	4717
api.Document 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.DOMContentLoaded_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.Document 📋	Firefox	4/2/2013	Chrome	7/25/2017	1575
api.Document.URL 📋	Safari	10/26/2007	Firefox	2/19/2013	1943	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.activeElement 📋	Firefox	6/17/2008	Safari	10/22/2013	1953	Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.activeViewTransition 📋	Chrome	10/28/2025	Firefox	1/13/2026	77
api.Document.adoptNode 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.adoptedStyleSheets 📋	Chrome	3/12/2019	Safari	3/27/2023	1476
api.Document.adoptedStyleSheets.mutable 📋	Chrome	3/1/2022	Safari	3/27/2023	391
api.Document.alinkColor 📋	Safari	9/19/2017	Firefox	9/3/2019	714	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.all 📋	Safari	9/19/2017	Firefox	10/22/2019	763	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.anchors 📋	Chrome	12/11/2008	Firefox	6/26/2018	3484	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.append 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.Document.applets 📋	Chrome	12/11/2008	Firefox	6/26/2018	3484	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.bgColor 📋	Safari	9/19/2017	Firefox	9/3/2019	714	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.body 📋	Safari	6/23/2003	Firefox	5/9/2018	5434	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.captureEvents 📋	Safari	9/19/2017	Firefox	10/22/2019	763	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.caretPositionFromPoint 📋	Firefox	4/2/2013	Safari	12/12/2025	4637
api.Document.characterSet 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: `charset` alias was made read-only in Chrome 45.Chrome Android: `charset` alias was made read-only in Chrome Android 45.Quest Browser: `charset` alias was made read-only in Quest Browser 5.0.Opera: `charset` alias was made read-only in Opera 45.Opera Android: `charset` alias was made read-only in Opera 45.Samsung Internet: `charset` alias was made read-only in Samsung Internet 5.0.WebView Android: `charset` alias was made read-only in WebView 45.
api.Document.childElementCount 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.Document.children 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.Document.clear 📋	Safari	9/19/2017	Firefox	10/22/2019	763	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.close 📋	Chrome	9/1/2015	Firefox	9/3/2019	1463	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.compatMode 📋	Chrome	12/2/2010	Firefox	2/19/2013	810	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.contentType 📋	Firefox	11/9/2004	Safari	9/30/2015	3977
api.Document.cookie 📋	Chrome	12/11/2008	Firefox	7/9/2019	3862	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.createAttribute 📋	Safari	6/23/2003	Firefox	1/26/2016	4600	Firefox: The parameter was not converted to its lowercase variant.Firefox for Android: The parameter was not converted to its lowercase variant.
api.Document.createAttributeNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.createCDATASection 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.createComment 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.createDocumentFragment 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.createElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Doesn't conform to the DOM spec for XUL and XHTML documents: `localName` and `namespaceURI` are not set to null on the created element.
api.Document.createElementNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Doesn't conform to the DOM spec for XUL and XHTML documents: `localName` and `namespaceURI` are not set to null on the created element.
api.Document.createEvent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: From version 67, creating touch events using this method is no longer supported.
api.Document.createExpression 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.createNSResolver 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.createNodeIterator 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.createProcessingInstruction 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.createRange 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.createTextNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.createTreeWalker 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.createTreeWalker.whatToShow_filter_parameters_optional	Safari	10/26/2007	Firefox	4/24/2012	1642
api.Document.currentScript 📋	Firefox	3/22/2011	Safari	10/16/2014	1304
api.Document.defaultView 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.designMode 📋	Chrome	7/16/2014	Firefox	9/3/2019	1875	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.dir 📋	Firefox	11/9/2004	Safari	3/27/2017	4521	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Incorrect behavior before Firefox 23.Firefox for Android: Incorrect behavior before Firefox for Android 23.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.doctype 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.documentElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.documentURI 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.domain 📋	Safari	6/23/2003	Firefox	9/3/2019	5916	Chrome: Since Chrome 115, setting `domain` has no effect, unless the website has opted into origin-keyed agent clusters.Chrome Android: Since Chrome Android 115, setting `domain` has no effect, unless the website has opted into origin-keyed agent clusters.Firefox: From Firefox 62, if the domain cannot be identified, `domain` returns an empty string instead of `null`. See bug 819475.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: From Firefox for Android 62, if the domain cannot be identified, `domain` returns an empty string instead of `null`. See bug 819475.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Quest Browser: Since Quest Browser false, setting `domain` has no effect, unless the website has opted into origin-keyed agent clusters.Samsung Internet: Since Samsung Internet 23.0, setting `domain` has no effect, unless the website has opted into origin-keyed agent clusters.WebView Android: Since WebView Android 115, setting `domain` has no effect, unless the website has opted into origin-keyed agent clusters.
api.Document.elementFromPoint 📋	Firefox	6/17/2008	Safari	6/8/2009	356	Chrome: Before Chrome 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Quest Browser: Before Quest Browser 5.0, this method returned `null` when the element was a child of a host node. See bug 40537452.Opera: Before Opera 53, this method returned `null` when the element was a child of a host node. See bug 40537452.Opera Android: Before Opera Android 47, this method returned `null` when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned `null` when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.
api.Document.elementsFromPoint 📋	Chrome	5/19/2015	Safari	4/12/2018	1059	Chrome: Before Chrome 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Edge: Returns a `NodeList` instead of an array. See the MSDN documentation. Returns `null` when the point provided has no elements beneath it (e.g., when given a point outside the document).Internet Explorer: Returns a `NodeList` instead of an array. See the MSDN documentation. Returns `null` when the point provided has no elements beneath it (e.g., when given a point outside the document).Quest Browser: Before Quest Browser 5.0, this method returned `null` when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned `null` when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.
api.Document.embeds 📋	Chrome	7/16/2014	Firefox	6/26/2018	1441	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.evaluate 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.execCommand	Safari	4/15/2005	Firefox	9/3/2019	5254	Firefox: From Firefox 82, nested calls are not supported (return `false`). See bug 1634262.Firefox: Before Firefox 89, manipulating the content of `<input>` and `<textarea>` elements using `Document.execCommand()` commands requires workarounds (see bug 1220696).Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: From Firefox for Android 82, nested calls are not supported (return `false`). See bug 1634262.Firefox for Android: Before Firefox for Android 89, manipulating the content of `<input>` and `<textarea>` elements using `Document.execCommand()` commands requires workarounds (see bug 1220696).Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.execCommand.copy	Chrome	4/14/2015	Safari	9/20/2016	525
api.Document.execCommand.cut	Chrome	4/14/2015	Safari	9/20/2016	525
api.Document.execCommand.insertHTML	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Document.exitFullscreen 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.exitFullscreen.returns_promise	Chrome	9/4/2018	Safari	3/27/2023	1665
api.Document.exitPointerLock 📋	Chrome	8/26/2014	Safari	3/27/2017	944
api.Document.fgColor 📋	Safari	9/19/2017	Firefox	9/3/2019	714	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.firstElementChild 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.Document.fonts 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.Document.forms 📋	Chrome	12/11/2008	Firefox	6/26/2018	3484	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.fragmentDirective 📋	Chrome	10/20/2020	Safari	3/31/2025	1623
api.Document.fullscreen 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenElement 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenEnabled 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenchange_event 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenerror_event 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.getAnimations 📋	Firefox	4/7/2020	Safari	9/16/2020	162	Safari: Implements an older version of the specification, see bug 179536.Safari on iOS: Implements an older version of the specification, see bug 179536.WebView on iOS: Implements an older version of the specification, see bug 179536.
api.Document.getElementById 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.getElementsByClassName 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.Document.getElementsByName 📋	Chrome	12/11/2008	Firefox	1/23/2018	3330	Edge: Before Edge 79, this method returns an `HTMLCollection`, not a `NodeList`.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Internet Explorer: Returns an `HTMLCollection`, not a `NodeList`Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.getElementsByTagName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.getElementsByTagNameNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.getSelection 📋	Chrome	5/21/2009	Firefox	11/14/2017	3099	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.hasFocus 📋	Firefox	6/17/2008	Chrome	4/8/2014	2121	Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.hasStorageAccess 📋	Safari	4/12/2018	Chrome	10/31/2023	2028
api.Document.head 📋	Chrome	1/25/2010	Firefox	6/26/2018	3074	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.hidden 📋	Firefox	1/8/2013	Chrome	2/20/2014	408	Firefox: Since Firefox 56 it also returns `true` on macOS when the window is completely hidden by another non-translucent application.Firefox for Android: Since Firefox for Android 56 it also returns `true` on macOS when the window is completely hidden by another non-translucent application.
api.Document.images 📋	Chrome	12/11/2008	Firefox	6/26/2018	3484	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.implementation 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.importNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.lastElementChild 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.Document.lastModified 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.linkColor 📋	Safari	9/19/2017	Firefox	9/3/2019	714	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.links 📋	Chrome	12/11/2008	Firefox	6/26/2018	3484	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.location 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.open 📋	Chrome	9/1/2015	Firefox	9/3/2019	1463	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.parseHTMLUnsafe_static 📋	Chrome	4/16/2024	Safari	9/15/2025	517	Firefox: Throws error `NS_ERROR_UNEXPECTED` (bug 1887817.)Firefox for Android: Throws error `NS_ERROR_UNEXPECTED` (bug 1887817.)Safari: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).Safari on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).WebView on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).
api.Document.plugins 📋	Chrome	7/16/2014	Firefox	6/26/2018	1441	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.pointerLockElement 📋	Chrome	8/26/2014	Safari	3/27/2017	944
api.Document.pointerlockchange_event 📋	Chrome	7/16/2014	Safari	3/27/2017	985
api.Document.pointerlockerror_event 📋	Chrome	7/16/2014	Safari	3/27/2017	985
api.Document.prepend 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.Document.queryCommandEnabled	Safari	4/29/2005	Firefox	9/3/2019	5240	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: `queryCommandEnabled` with arguments `cut`, `copy` or `paste` would throw errors unless the script had special privileges.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: `queryCommandEnabled` with arguments `cut`, `copy` or `paste` would throw errors unless the script had special privileges.
api.Document.queryCommandIndeterm	Safari	4/29/2005	Firefox	9/3/2019	5240	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.queryCommandState	Safari	4/29/2005	Firefox	9/3/2019	5240	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.queryCommandSupported	Safari	4/29/2005	Firefox	9/3/2019	5240	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: The `"paste"` command is reported as supported when the paste feature is available even if the calling script has insufficient privileges to actually perform the action.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: The `"paste"` command is reported as supported when the paste feature is available even if the calling script has insufficient privileges to actually perform the action.
api.Document.queryCommandValue	Safari	4/29/2005	Firefox	9/3/2019	5240	Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.querySelector 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Internet Explorer: `querySelectorAll()` is supported, but only for CSS 2.1 selectors.
api.Document.querySelectorAll 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Internet Explorer: `querySelectorAll()` is supported, but only for CSS 2.1 selectors.
api.Document.readyState 📋	Safari	6/23/2003	Firefox	1/21/2010	2404	Internet Explorer: Internet Explorer 9 and 10 have bugs where the 'interactive' state can be fired too early before the document has finished parsing.Internet Explorer: Only supports 'complete'.Opera: Opera Presto fires 'complete' late after the 'load' event (in an incorrect order as per HTML5 standard specification).Opera Android: Opera Presto fires 'complete' late after the 'load' event (in an incorrect order as per HTML5 standard specification).
api.Document.readystatechange_event 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.Document.referrer 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Document.releaseEvents 📋	Safari	9/19/2017	Firefox	10/22/2019	763	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.replaceChildren 📋	Firefox	6/30/2020	Chrome	10/20/2020	112
api.Document.requestStorageAccess 📋	Safari	4/12/2018	Chrome	10/31/2023	2028	Safari: Client-side storage access is granted per-page (see explanation).Safari on iOS: Client-side storage access is granted per-page (see explanation).WebView on iOS: Client-side storage access is granted per-page (see explanation).
api.Document.rootElement 📋	Chrome	4/8/2014	Safari	3/27/2017	1084
api.Document.scripts 📋	Chrome	7/16/2014	Firefox	6/26/2018	1441	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.scroll_event 📋	Safari	4/29/2005	Firefox	8/16/2011	2300
api.Document.scrollend_event 📋	Firefox	1/17/2023	Safari	12/12/2025	1060
api.Document.scrollingElement 📋	Chrome	7/21/2015	Firefox	8/2/2016	378
api.Document.securitypolicyviolation_event 📋	Chrome	7/30/2019	Safari	3/14/2022	958
api.Document.selectionchange_event 📋	Chrome	4/27/2011	Firefox	3/7/2017	2141
api.Document.startViewTransition 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
api.Document.startViewTransition.options_parameter 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.Document.startViewTransition.options_parameter.types_parameter 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.Document.startViewTransition.options_parameter.update_parameter 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.Document.styleSheets 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
api.Document.timeline 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Document.title 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Safari: Only supported for `HTMLDocument` and `XMLDocument`, but not `SVGDocument` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument` and `XMLDocument`, but not `SVGDocument` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument` and `XMLDocument`, but not `SVGDocument` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.visibilityState 📋	Firefox	1/8/2013	Chrome	2/20/2014	408
api.Document.visibilitychange_event 📋	Firefox	9/28/2017	Safari	4/26/2021	1306	Chrome: The `onvisibilitychange` event handler property is not supported.Chrome: The `onvisibilitychange` event handler property is not supported.Chrome Android: The `onvisibilitychange` event handler property is not supported.Chrome Android: The `onvisibilitychange` event handler property is not supported.Edge: The `onvisibilitychange` event handler property is not supported.Internet Explorer: The `onvisibilitychange` event handler property is not supported.Quest Browser: The `onvisibilitychange` event handler property is not supported.Opera: The `onvisibilitychange` event handler property is not supported.Opera: The `onvisibilitychange` event handler property is not supported.Opera: The `onvisibilitychange` event handler property is not supported.Opera Android: The `onvisibilitychange` event handler property is not supported.Opera Android: The `onvisibilitychange` event handler property is not supported.Opera Android: The `onvisibilitychange` event handler property is not supported.Safari: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari: Before Safari 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not.Safari: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari: Before Safari 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not.Safari: The `onvisibilitychange` event handler property is not supported.Safari on iOS: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari on iOS: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari on iOS: Before Safari on iOS 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not.Safari on iOS: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari on iOS: Before Safari on iOS 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not.Safari on iOS: The `onvisibilitychange` event handler property is not supported.Samsung Internet: The `onvisibilitychange` event handler property is not supported.Samsung Internet: The `onvisibilitychange` event handler property is not supported.WebView Android: The `onvisibilitychange` event handler property is not supported.WebView Android: The `onvisibilitychange` event handler property is not supported.WebView on iOS: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.WebView on iOS: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.WebView on iOS: Before WebView on iOS 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not.WebView on iOS: Doesn't fire the `visibilitychange` event when navigating away from a document, so also include code to check for the `pagehide` event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.WebView on iOS: Before WebView on iOS 14, the event does not bubble, so `document.addEventListener('visibilitychange', ...)` works, but `window.addEventListener('visibilitychange', ...)` does not.WebView on iOS: The `onvisibilitychange` event handler property is not supported.
api.Document.vlinkColor 📋	Safari	9/19/2017	Firefox	9/3/2019	714	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.write 📋	Chrome	9/1/2015	Firefox	9/3/2019	1463	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.Document.writeln 📋	Chrome	9/1/2015	Firefox	9/3/2019	1463	Chrome: Only supported for `HTMLDocument`, not all `Document` objects.Chrome Android: Only supported for `HTMLDocument`, not all `Document` objects.Firefox: Only supported for `HTMLDocument`, not all `Document` objects.Firefox for Android: Only supported for `HTMLDocument`, not all `Document` objects.Opera: Only supported for `HTMLDocument`, not all `Document` objects.Opera Android: Only supported for `HTMLDocument`, not all `Document` objects.Safari: Only supported for `HTMLDocument`, not all `Document` objects.Safari on iOS: Only supported for `HTMLDocument`, not all `Document` objects.Samsung Internet: Only supported for `HTMLDocument`, not all `Document` objects.WebView Android: Only supported for `HTMLDocument`, not all `Document` objects.WebView on iOS: Only supported for `HTMLDocument`, not all `Document` objects.
api.DocumentFragment 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DocumentFragment.DocumentFragment 📋	Chrome	8/20/2013	Safari	10/16/2014	422
api.DocumentFragment.append 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.DocumentFragment.childElementCount 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.DocumentFragment.children 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.DocumentFragment.firstElementChild 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.DocumentFragment.getElementById 📋	Firefox	3/18/2014	Safari	9/30/2015	561
api.DocumentFragment.lastElementChild 📋	Chrome	8/20/2013	Safari	9/30/2015	771
api.DocumentFragment.prepend 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.DocumentFragment.querySelector 📋	Chrome	5/21/2009	Firefox	6/30/2009	40	Internet Explorer: `querySelectorAll()` is supported, but only for CSS 2.1 selectors.
api.DocumentFragment.querySelectorAll 📋	Chrome	5/21/2009	Firefox	6/30/2009	40	Internet Explorer: `querySelectorAll()` is supported, but only for CSS 2.1 selectors.
api.DocumentFragment.replaceChildren 📋	Firefox	6/30/2020	Chrome	10/20/2020	112
api.DocumentTimeline 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.DocumentTimeline.DocumentTimeline 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.DocumentType 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DocumentType.after 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.DocumentType.before 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.DocumentType.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DocumentType.publicId 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DocumentType.remove 📋	Chrome	1/10/2013	Safari	10/22/2013	285
api.DocumentType.replaceWith 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.DocumentType.systemId 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.DragEvent 📋	Firefox	6/30/2009	Safari	9/16/2020	4096	Internet Explorer: Before Internet Explorer 10, `DragEvent` is exposed in standards mode but not quirks mode.
api.DragEvent.DragEvent 📋	Firefox	6/30/2009	Safari	9/16/2020	4096
api.DragEvent.dataTransfer 📋	Firefox	6/30/2009	Safari	9/16/2020	4096	Internet Explorer: The value is always `null`.
api.DynamicsCompressorNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.DynamicsCompressorNode.DynamicsCompressorNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.DynamicsCompressorNode.attack 📋	Chrome	5/15/2012	Firefox	10/29/2013	532
api.DynamicsCompressorNode.knee 📋	Chrome	5/15/2012	Firefox	10/29/2013	532
api.DynamicsCompressorNode.ratio 📋	Chrome	5/15/2012	Firefox	10/29/2013	532
api.DynamicsCompressorNode.reduction 📋	Chrome	5/15/2012	Firefox	10/29/2013	532	Chrome: Before version 52, this was an `AudioParam.`.Chrome Android: Before version 52, this was an `AudioParam.`.Quest Browser: Before version 5.0, this was an `AudioParam.`.Samsung Internet: Before Samsung Internet 6.0, this was an `AudioParam.`.WebView Android: Before version 52, this was an `AudioParam.`.
api.DynamicsCompressorNode.release 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.DynamicsCompressorNode.threshold 📋	Chrome	5/15/2012	Firefox	10/29/2013	532
api.EXT_blend_minmax 📋	Chrome	10/7/2014	Firefox	6/7/2016	609	Firefox: Not supported on Windows.
api.EXT_color_buffer_float 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.EXT_color_buffer_half_float 📋	Firefox	6/7/2016	Safari	9/16/2020	1562	Firefox: Not supported on Windows.
api.EXT_float_blend 📋	Firefox	5/21/2019	Safari	4/26/2021	706	Chrome Android: Until Chrome 77, this extension was unavailable on several Android devices powered by GLES 3.2. See bug 41459397.Quest Browser: Until Chrome 77, this extension was unavailable on several Android devices powered by GLES 3.2. See bug 41459397.
api.EXT_frag_depth 📋	Chrome	10/7/2014	Firefox	6/7/2016	609
api.EXT_sRGB 📋	Chrome	1/21/2015	Firefox	1/23/2018	1098	Firefox: Not supported on Windows.
api.EXT_shader_texture_lod 📋	Chrome	10/7/2014	Firefox	6/7/2016	609
api.EXT_texture_compression_bptc 📋	Firefox	7/9/2019	Safari	9/12/2022	1161	Chrome: Only supported on macOS.Edge: Only supported on macOS.Opera: Only supported on macOS.
api.EXT_texture_compression_rgtc 📋	Firefox	1/29/2019	Chrome	8/31/2021	945	Chrome: Only supported on macOS.Edge: Only supported on macOS.Firefox: Only supported on macOS.Opera: Only supported on macOS.
api.EXT_texture_filter_anisotropic 📋	Chrome	4/8/2014	Firefox	6/7/2016	791
api.Element 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.DOMActivate_event 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.after 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.Element.animate 📋	Chrome	7/16/2014	Safari	3/24/2020	2078
api.Element.animate.implicit_tofrom	Safari	3/24/2020	Chrome	7/27/2020	125	Safari: Implementation seems somewhat buggy. More information will follow when available.Safari on iOS: Implementation seems somewhat buggy. More information will follow when available.WebView on iOS: Implementation seems somewhat buggy. More information will follow when available.
api.Element.animate.options_composite_parameter 📋	Chrome	7/27/2020	Safari	9/12/2022	777
api.Element.animate.options_id_parameter 📋	Chrome	4/13/2016	Safari	3/24/2020	1441
api.Element.animate.options_pseudoElement_parameter 📋	Firefox	4/7/2020	Safari	9/16/2020	162
api.Element.animationcancel_event 📋	Firefox	6/13/2017	Chrome	5/19/2020	1071	Chrome: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.Chrome Android: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.Edge: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.Quest Browser: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.Opera: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.Opera Android: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.Safari: Although the `onanimationcancel` event handler property is supported, the `animationcancel` event is never fired.Safari on iOS: Although the `onanimationcancel` event handler property is supported, the `animationcancel` event is never fired.Samsung Internet: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.WebView Android: The `onanimationcancel` event handler property is not supported. To listen to this event, use `element.addEventListener('animationcancel', function() {});`. See bug 41404325.WebView on iOS: Although the `onanimationcancel` event handler property is supported, the `animationcancel` event is never fired.
api.Element.animationend_event 📋	Safari	9/30/2015	Chrome	12/10/2019	1532	Chrome: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Chrome Android: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Edge: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Firefox: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Firefox for Android: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Internet Explorer: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Quest Browser: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Opera: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Opera Android: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.Samsung Internet: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.WebView Android: The `onanimationend` event handler property is not supported. To listen to this event, use `document.addEventListener('animationend', function() {});`.
api.Element.animationiteration_event 📋	Safari	9/30/2015	Chrome	12/10/2019	1532	Chrome: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Chrome Android: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Edge: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Firefox: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Firefox for Android: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Internet Explorer: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Quest Browser: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Opera: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Opera Android: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.Samsung Internet: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.WebView Android: The `onanimationiteration` event handler property is not supported. To listen to this event, use `document.addEventListener('animationiteration', function() {});`.
api.Element.animationstart_event 📋	Safari	9/30/2015	Chrome	12/10/2019	1532	Chrome: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Chrome Android: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Edge: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Firefox: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Firefox for Android: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Internet Explorer: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Quest Browser: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Opera: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Opera Android: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.Samsung Internet: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.WebView Android: The `onanimationstart` event handler property is not supported. To listen to this event, use `document.addEventListener('animationstart', function() {});`.
api.Element.append 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.Element.ariaActiveDescendantElement 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.Element.ariaAtomic 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaAutoComplete 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaBrailleLabel 📋	Chrome	10/25/2022	Safari	9/16/2024	692
api.Element.ariaBrailleRoleDescription 📋	Chrome	10/25/2022	Safari	9/16/2024	692
api.Element.ariaBusy 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaChecked 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaColCount 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaColIndex 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaColIndexText 📋	Firefox	10/24/2023	Safari	12/12/2025	780
api.Element.ariaColSpan 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaControlsElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.Element.ariaCurrent 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaDescribedByElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.Element.ariaDescription 📋	Chrome	5/19/2020	Safari	3/5/2024	1386
api.Element.ariaDetailsElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.Element.ariaDisabled 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaErrorMessageElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.Element.ariaExpanded 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaFlowToElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.Element.ariaHasPopup 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaHidden 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaInvalid 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaKeyShortcuts 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaLabel 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaLabelledByElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.Element.ariaLevel 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaLive 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaModal 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaMultiLine 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaMultiSelectable 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaOrientation 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaPlaceholder 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaPosInSet 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaPressed 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaReadOnly 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaRelevant	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaRequired 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaRoleDescription 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaRowCount 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaRowIndex 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaRowIndexText 📋	Firefox	10/24/2023	Safari	12/12/2025	780
api.Element.ariaRowSpan 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaSelected 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaSetSize 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaSort 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaValueMax 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaValueMin 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaValueNow 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.ariaValueText 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.assignedSlot 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.Element.attachShadow 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.Element.attachShadow.options_clonable_parameter 📋	Firefox	2/20/2024	Chrome	4/16/2024	56
api.Element.attachShadow.options_delegatesFocus_parameter 📋	Chrome	8/31/2016	Firefox	11/2/2021	1889
api.Element.attachShadow.options_serializable_parameter 📋	Chrome	5/14/2024	Safari	9/16/2024	125
api.Element.attributes 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.auxclick_event 📋	Chrome	12/1/2016	Safari	12/11/2024	2932	Firefox: Starting in Firefox 68, the `auxclick` event is used to trigger the new tab on middle-click action; previously, this had been done with the `click` event. Apps can prevent middle-click from opening new tabs (or middle-click to paste, if that feature is enabled) by intercepting `auxclick` on links, and `auxclick` event handlers can now open popups without triggering the popup blocker.
api.Element.auxclick_event.type_pointerevent	Chrome	7/20/2021	Safari	12/11/2024	1240
api.Element.before 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.Element.beforeinput_event 📋	Safari	3/27/2017	Firefox	3/23/2021	1457
api.Element.beforematch_event 📋	Chrome	5/24/2022	Safari	12/12/2025	1298
api.Element.blur_event 📋	Safari	3/18/2008	Firefox	9/17/2013	2009	Firefox: The interface for this event is `Event`, not `FocusEvent`.Firefox for Android: The interface for this event is `Event`, not `FocusEvent`.
api.Element.checkVisibility 📋	Chrome	9/2/2022	Safari	3/5/2024	550
api.Element.checkVisibility.options_checkOpacity_parameter 📋	Chrome	9/2/2022	Safari	3/5/2024	550
api.Element.checkVisibility.options_checkVisibilityCSS_parameter 📋	Chrome	9/2/2022	Safari	3/5/2024	550
api.Element.checkVisibility.options_contentVisibilityAuto_parameter 📋	Chrome	1/23/2024	Safari	3/5/2024	42
api.Element.checkVisibility.options_opacityProperty_parameter 📋	Chrome	1/23/2024	Safari	3/5/2024	42
api.Element.checkVisibility.options_visibilityProperty_parameter 📋	Chrome	1/23/2024	Safari	3/5/2024	42
api.Element.childElementCount 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.Element.children 📋	Chrome	12/11/2008	Firefox	6/30/2009	201	Internet Explorer: Also includes non-standard `HTMLCommentElement` nodes.
api.Element.classList 📋	Firefox	1/21/2010	Safari	10/22/2013	1370	Chrome: Not supported for SVG elements.Chrome Android: Not supported for SVG elements.Edge: Not supported for SVG elements.Internet Explorer: Not supported for SVG elements.Safari: Not supported for SVG elements.Safari on iOS: Not supported for SVG elements.Samsung Internet: Not supported for SVG elements.WebView Android: Not supported for SVG elements.WebView on iOS: Not supported for SVG elements.
api.Element.className 📋	Safari	6/23/2003	Chrome	9/25/2012	3382	Chrome: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Chrome Android: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Samsung Internet: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.
api.Element.click_event 📋	Safari	10/26/2007	Firefox	8/16/2011	1390	Firefox: Beginning in Firefox 68, Firefox no longer incorrectly sends a `click` event for buttons other than the primary mouse button; previously, there were circumstances in which this would occur. One example: middle-clicking a link would send a `click` to the document's `<html>` element.
api.Element.click_event.type_pointerevent	Chrome	7/20/2021	Safari	12/11/2024	1240
api.Element.clientHeight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Element.clientLeft 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.Element.clientTop 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.Element.clientWidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Element.closest 📋	Safari	7/25/2012	Chrome	3/3/2015	951
api.Element.compositionend_event 📋	Safari	6/7/2010	Firefox	12/20/2011	561
api.Element.compositionstart_event 📋	Safari	6/7/2010	Firefox	12/20/2011	561
api.Element.compositionupdate_event 📋	Safari	6/7/2010	Chrome	3/28/2012	660
api.Element.contentvisibilityautostatechange_event 📋	Chrome	11/29/2022	Safari	9/16/2024	657	Firefox: The `oncontentvisibilityautostatechange` event handler property is not supported.Firefox for Android: The `oncontentvisibilityautostatechange` event handler property is not supported.
api.Element.contextmenu_event 📋	Safari	10/26/2007	Firefox	8/16/2011	1390
api.Element.contextmenu_event.type_pointerevent	Chrome	7/20/2021	Safari	12/11/2024	1240
api.Element.copy_event 📋	Safari	10/26/2007	Firefox	6/25/2013	2069	Internet Explorer: Before Internet Explorer 9, this event is not supported via `addEventListener`; however, the event handler is supported since IE 5.5. The event can be listened to via `element.oncopy`.
api.Element.cut_event 📋	Safari	10/26/2007	Firefox	6/25/2013	2069	Internet Explorer: Before Internet Explorer 9, this event is not supported via `addEventListener`; however, the event handler is supported since IE 5.5. The event can be listened to via `element.oncopy`.
api.Element.dblclick_event 📋	Safari	10/26/2007	Firefox	8/16/2011	1390	Firefox: Starting in Firefox 68, `dblclick` events are only sent for the primary mouse button, per the specification.
api.Element.firstElementChild 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.Element.focus_event 📋	Safari	3/18/2008	Firefox	9/17/2013	2009	Firefox: The interface for this event is `Event`, not `FocusEvent`.Firefox for Android: The interface for this event is `Event`, not `FocusEvent`.
api.Element.focusin_event 📋	Chrome	12/11/2008	Firefox	3/7/2017	3008	Chrome: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.Chrome Android: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.Edge: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.Firefox: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.Firefox for Android: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.Quest Browser: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.Samsung Internet: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.WebView Android: The `onfocusin` event handler property is not supported. To listen to this event, use `element.addEventListener('focusin', function() {});`.
api.Element.focusout_event 📋	Chrome	12/11/2008	Firefox	3/7/2017	3008	Chrome: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.Chrome Android: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.Edge: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.Firefox: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.Firefox for Android: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.Quest Browser: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.Samsung Internet: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.WebView Android: The `onfocusout` event handler property is not supported. To listen to this event, use `element.addEventListener('focusout', function() {});`.
api.Element.fullscreenchange_event 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Element.fullscreenerror_event 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Element.getAnimations 📋	Safari	3/24/2020	Chrome	7/27/2020	125
api.Element.getAttribute 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.getAttributeNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Starting in Firefox 13, `null` is always returned instead of the empty string, as per the DOM4 specification. Previously, there were cases in which an empty string could be returned.Firefox for Android: Starting in Firefox for Android 14, `null` is always returned instead of the empty string, as per the DOM4 specification. Previously, there were cases in which an empty string could be returned.
api.Element.getAttributeNames 📋	Firefox	3/8/2016	Chrome	9/5/2017	546
api.Element.getAttributeNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.getAttributeNodeNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.getBoundingClientRect 📋	Firefox	6/17/2008	Safari	6/8/2009	356	Safari on iOS: Safari for iOS will modify the effective viewport based on the user zoom. This results in incorrect values whenever the user has zoomed.WebView on iOS: Safari for iOS will modify the effective viewport based on the user zoom. This results in incorrect values whenever the user has zoomed.
api.Element.getClientRects 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.Element.getElementsByClassName 📋	Safari	3/18/2008	Chrome	12/11/2008	268	Edge: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Firefox: Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflect the change in the spec.Internet Explorer: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.
api.Element.getElementsByTagName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Chrome Android: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Firefox: Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflect the change in the spec.Firefox for Android: Before Firefox for Android 19, this method was returning a `NodeList`; it was then changed to reflect the change in the spec.Quest Browser: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Opera: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Safari: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Safari on iOS: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Samsung Internet: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.WebView Android: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.WebView on iOS: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.
api.Element.getElementsByTagName.all_elements_selector	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.getElementsByTagNameNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Chrome Android: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Firefox: The behavior of `element.getElementsByTagNameNS` changed between Firefox 3.5 and Firefox 3.6. In Firefox 3.5 and before, this function would automatically case-fold any queries so that a search for "foo" would match "Foo" or "foo". In Firefox 3.6 and later this function is now case-sensitive so that a query for "foo" will only match "foo" and not "Foo". For more background on this, please see the comment from Henri Sivonen about the change. You can also look at the relevant part of the standard, which states which parts of the API are case-sensitive and which parts aren't.Firefox: Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflects the spec change.Firefox for Android: Before Firefox 19, this method was returning a `NodeList`; it was then changed to reflects the spec change.Quest Browser: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Opera: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Opera Android: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Safari: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Safari on iOS: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.Samsung Internet: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.WebView Android: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.WebView on iOS: Initially, this method was returning a `NodeList`; it was then changed to reflect the spec change.
api.Element.getElementsByTagNameNS.all_elements_selector	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.getHTML 📋	Chrome	5/14/2024	Safari	9/16/2024	125
api.Element.getHTML.escapes_lt_gt_in_attributes	Chrome	6/24/2025	Safari	9/15/2025	83
api.Element.gotpointercapture_event 📋	Chrome	3/9/2017	Safari	9/19/2019	924
api.Element.hasAttribute 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.hasAttributeNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.hasAttributes 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 35, it was implemented on the `Node` interface.Firefox for Android: Before Firefox for Android 35, it was implemented on the `Node` interface.
api.Element.hasPointerCapture 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.id 📋	Safari	6/23/2003	Chrome	11/6/2012	3424	Chrome: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Chrome Android: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Samsung Internet: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.
api.Element.innerHTML 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.innerHTML.escapes_lt_gt_in_attributes	Chrome	6/24/2025	Safari	9/15/2025	83
api.Element.input_event 📋	Safari	3/18/2008	Firefox	8/16/2011	1246	Edge: Not supported on `select`, `checkbox`, or `radio` inputs.Internet Explorer: Only supports `input` of type `text` and `password`.
api.Element.insertAdjacentElement 📋	Safari	10/26/2007	Firefox	8/2/2016	3203	Edge: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Internet Explorer: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.
api.Element.insertAdjacentHTML 📋	Chrome	12/11/2008	Firefox	11/8/2011	1062	Edge: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Internet Explorer: Before Internet Explorer 10, throws an "Invalid target element for this operation." error when called on a `<table>`, `<tbody>`, `<thead>`, or `<tr>` element.Internet Explorer: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.
api.Element.insertAdjacentText 📋	Chrome	12/11/2008	Firefox	8/2/2016	2791	Edge: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Internet Explorer: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.
api.Element.keydown_event 📋	Safari	2/2/2004	Firefox	8/16/2011	2752
api.Element.keypress_event 📋	Safari	4/15/2005	Firefox	8/16/2011	2314	Chrome: Chrome does not fire the `keypress` event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts.Chrome Android: Chrome Android does not fire the `keypress` event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts.Firefox: As of Firefox 65, the `keypress` event is no longer fired for non-printable keys, except for the Enter key, and the Shift + Enter and Ctrl + Enter key combinations (these were kept for cross-browser compatibility purposes).Firefox for Android: As of Firefox for Android 65, the `keypress` event is no longer fired for non-printable keys, except for the Enter key, and the Shift + Enter and Ctrl + Enter key combinations (these were kept for cross-browser compatibility purposes).Quest Browser: Quest Browser does not fire the `keypress` event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts.Opera: Opera does not fire the `keypress` event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts.Opera Android: Opera does not fire the `keypress` event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts.Samsung Internet: Samsung Internet does not fire the `keypress` event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts.WebView Android: Chrome does not fire the `keypress` event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the `keydown` event to implement keyboard shortcuts.
api.Element.keyup_event 📋	Safari	2/2/2004	Firefox	8/16/2011	2752
api.Element.lastElementChild 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.Element.localName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.lostpointercapture_event 📋	Chrome	3/9/2017	Safari	9/19/2019	924
api.Element.matches 📋	Chrome	2/20/2014	Firefox	12/1/2014	284	Firefox: Before Firefox 4, invalid selector strings caused false to be returned instead of throwing an exception.Firefox: See bug 1119718 for removal.Firefox for Android: See bug 1119718 for removal.
api.Element.mousedown_event 📋	Chrome	5/21/2009	Firefox	8/16/2011	817
api.Element.mouseenter_event 📋	Firefox	1/31/2012	Safari	10/22/2013	630
api.Element.mouseleave_event 📋	Firefox	1/31/2012	Safari	10/22/2013	630
api.Element.mousemove_event 📋	Chrome	5/21/2009	Firefox	8/16/2011	817
api.Element.mouseout_event 📋	Safari	6/23/2003	Firefox	8/16/2011	2976
api.Element.mouseover_event 📋	Chrome	5/21/2009	Firefox	8/16/2011	817
api.Element.mouseup_event 📋	Chrome	5/21/2009	Firefox	8/16/2011	817
api.Element.namespaceURI 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.nextElementSibling 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.Element.outerHTML 📋	Safari	4/15/2005	Firefox	3/13/2012	2524
api.Element.outerHTML.escapes_lt_gt_in_attributes	Chrome	6/24/2025	Safari	9/15/2025	83
api.Element.part 📋	Chrome	3/12/2019	Safari	3/24/2020	378
api.Element.paste_event 📋	Safari	10/26/2007	Firefox	6/25/2013	2069	Internet Explorer: Before Internet Explorer 11, copying files does not trigger the `paste` event.Internet Explorer: Before Internet Explorer 9, this event is not supported via `addEventListener`; however, the event handler is supported since IE 5.5. The event can be listened to via `element.oncopy`.
api.Element.pointercancel_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.pointerdown_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.pointerenter_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.pointerleave_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.pointermove_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.pointerout_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.pointerover_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.pointerup_event 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.prefix 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.prepend 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.Element.previousElementSibling 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.Element.querySelector 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Internet Explorer: `querySelector()` is supported, but only for CSS 2.1 selectors.
api.Element.querySelectorAll 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Internet Explorer: `querySelectorAll()` is supported, but only for CSS 2.1 selectors.
api.Element.releasePointerCapture 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.Element.remove 📋	Chrome	1/10/2013	Safari	10/22/2013	285
api.Element.removeAttribute 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: This function doesn't respect boolean attributes' default values. See bug 12087679.
api.Element.removeAttributeNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.removeAttributeNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.replaceChildren 📋	Firefox	6/30/2020	Chrome	10/20/2020	112
api.Element.replaceWith 📋	Firefox	9/20/2016	Chrome	10/12/2016	22
api.Element.requestFullscreen 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Firefox: Before Firefox 44, Firefox incorrectly allowed elements inside a `<frame>` or `<object>` element to request, and to be granted, fullscreen. In Firefox 44 and onwards this has been fixed: only elements in the top-level document or in an `<iframe>` element with the `allowfullscreen` attribute can be displayed fullscreen.Firefox for Android: Before Firefox for Android 44, Firefox for Android incorrectly allowed elements inside a `<frame>` or `<object>` element to request, and to be granted, fullscreen. In Firefox for Android 44 and onwards this has been fixed: only elements in the top-level document or in an `<iframe>` element with the `allowfullscreen` attribute can be displayed fullscreen.Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone. Shows an overlay button which can not be disabled.
api.Element.requestFullscreen.returns_promise	Chrome	12/4/2018	Safari	3/27/2023	1574
api.Element.requestPointerLock 📋	Chrome	8/26/2014	Safari	3/27/2017	944	Chrome: From version 92, returns a promise instead of `undefined`. The behavior reflects a specification change.Edge: From version 92, returns a promise instead of `undefined`. The behavior reflects a specification change.Opera: From version 78, returns a promise instead of `undefined`. The behavior reflects a specification change.Safari: From version 18.4, returns a promise instead of `undefined`. The behavior reflects a specification change.Samsung Internet: From version 16, returns a promise instead of `undefined`. The behavior reflects a specification change.
api.Element.role 📋	Safari	3/25/2019	Firefox	10/24/2023	1674
api.Element.scroll 📋	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scroll.options_behavior_parameter	Firefox	2/24/2015	Safari	9/16/2020	2031
api.Element.scroll.options_left_parameter	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scroll.options_top_parameter	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scrollBy 📋	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scrollBy.options_behavior_parameter	Firefox	2/24/2015	Safari	9/16/2020	2031
api.Element.scrollBy.options_left_parameter	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scrollBy.options_top_parameter	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scrollHeight 📋	Safari	6/23/2003	Firefox	5/14/2013	3613	Firefox: Before Firefox 21, when an element's content does not generate a vertical scrollbar, then its `scrollHeight` property is equal to its `clientHeight` property. This can mean either the content is too short to require a scrollbar or that the element has a CSS style `overflow` value of `visible` (non-scrollable).Firefox for Android: Before Firefox for Android 21, when an element's content does not generate a vertical scrollbar, then its `scrollHeight` property is equal to its `clientHeight` property. This can mean either the content is too short to require a scrollbar or that the element has a CSS style `overflow` value of `visible` (non-scrollable).Internet Explorer: In Internet Explorer 5 through 7, if padding is set, the value of `scrollHeight` is equal to the sum of the top and bottom padding. This behavior was fixed in Internet Explorer 8.
api.Element.scrollIntoView 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Edge: The only parameter supported is `alignToTop`.Edge: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Edge: No support for `smooth` behavior.Internet Explorer: Only supported for `HTMLElement`, not all `Element` objects, such as `SVGElement`.Internet Explorer: No support for `smooth` behavior or `center` options.Safari: No support for `center` option.Safari: Before Safari 15.4, there was no support for the `smooth` behavior.Safari on iOS: No support for `center` option.Safari on iOS: Before iOS 15.4, there was no support for the `smooth` behavior.WebView on iOS: No support for `center` option.WebView on iOS: Before iOS 15.4, there was no support for the `smooth` behavior.
api.Element.scrollIntoView.options_parameter 📋	Firefox	2/24/2015	Safari	9/16/2020	2031
api.Element.scrollIntoView.options_parameter.block_option 📋	Chrome	9/5/2017	Safari	9/16/2020	1107	Firefox: Only values `"top"` and `"bottom"`, not `"nearest"` and `"center"`.Firefox for Android: Only values `"top"` and `"bottom"`, not `"nearest"` and `"center"`.
api.Element.scrollIntoView.options_parameter.inline_option 📋	Chrome	9/5/2017	Safari	9/16/2020	1107
api.Element.scrollLeft 📋	Safari	6/23/2003	Chrome	10/20/2020	6329	Chrome: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Chrome Android: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Edge: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Internet Explorer: For right-to-left elements, this property uses 100-0 (most left to most right) instead of negative values.Quest Browser: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Samsung Internet: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.WebView Android: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.
api.Element.scrollTo 📋	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scrollTo.options_behavior_parameter	Firefox	2/24/2015	Safari	9/16/2020	2031
api.Element.scrollTo.options_left_parameter	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scrollTo.options_top_parameter	Firefox	2/24/2015	Chrome	9/5/2017	924
api.Element.scrollTop 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.scrollWidth 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: In Internet Explorer 5 through 7, if padding is set, the value of `scrollWidth` is equal to the sum of the left and right padding. This behavior was fixed in Internet Explorer 8.
api.Element.scroll_event 📋	Safari	4/15/2005	Firefox	8/16/2011	2314
api.Element.scrollend_event 📋	Firefox	1/17/2023	Safari	12/12/2025	1060
api.Element.securitypolicyviolation_event 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.Element.setAttribute 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: In Internet Explorer 7 and earlier, `setAttribute` doesn't set styles and removes events when you try to set them.
api.Element.setAttributeNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.setAttributeNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.setAttributeNodeNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: Returns a `ClientRectList` with `ClientRect` objects (which do not contain `x` and `y` properties) instead of `DOMRect` objects.Internet Explorer: Returns a `ClientRectList` with `ClientRect` objects (which do not contain `x` and `y` properties) instead of `DOMRect` objects.
api.Element.setHTMLUnsafe 📋	Firefox	2/20/2024	Safari	9/15/2025	573	Safari: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).Safari on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).WebView on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).
api.Element.setPointerCapture 📋	Chrome	12/1/2016	Safari	9/19/2019	1022	Firefox: Before Firefox 82, `setPointerCapture()` throws `InvalidPointerId` for an invalid `pointerId` argument. From Firefox 82, it throws the specified `NotFoundError` exception. See bug 1662124.Firefox for Android: Before Firefox 82, `setPointerCapture()` throws `InvalidPointerId` for an invalid `pointerId` argument. From Firefox 82, it throws the specified `NotFoundError` exception. See bug 1662124.
api.Element.shadowRoot 📋	Chrome	5/20/2014	Firefox	10/23/2018	1617
api.Element.slot 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.Element.tagName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Element.toggleAttribute 📋	Chrome	9/4/2018	Firefox	10/23/2018	49
api.Element.transitioncancel_event 📋	Firefox	4/19/2017	Chrome	11/17/2020	1308	Chrome: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.Chrome Android: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.Edge: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.Quest Browser: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.Opera: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.Opera Android: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.Safari: Although the `ontransitioncancel` event handler property is supported, the `transitioncancel` event is never fired.Safari on iOS: Although the `ontransitioncancel` event handler property is supported, the `transitioncancel` event is never fired.Samsung Internet: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.WebView Android: The `ontransitioncancel` event handler property is not supported. To listen to this event, use `element.addEventListener('transitioncancel', function() {});`.WebView on iOS: Although the `ontransitioncancel` event handler property is supported, the `transitioncancel` event is never fired.
api.Element.transitionend_event 📋	Chrome	3/26/2013	Firefox	1/24/2017	1400	Edge: The `ontransitionend` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionend', function() {});`.Internet Explorer: The `ontransitionend` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionend', function() {});`.
api.Element.transitionrun_event 📋	Firefox	4/19/2017	Safari	3/24/2020	1070	Internet Explorer: The `ontransitionrun` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionrun', function() {});`.Safari: The event handler exists but will never be called.Safari on iOS: The event handler exists but will never be called.WebView on iOS: The event handler exists but will never be called.
api.Element.transitionstart_event 📋	Firefox	4/19/2017	Safari	3/24/2020	1070	Internet Explorer: The `ontransitionstart` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionstart', function() {});`.Safari: The event handler exists but will never be called.Safari on iOS: The event handler exists but will never be called.WebView on iOS: The event handler exists but will never be called.
api.Element.wheel_event 📋	Firefox	11/20/2012	Chrome	11/12/2013	357	Internet Explorer: The `onwheel` event handler property is not supported. To listen to this event, use `element.addEventListener('wheel', function() {});`. See IE bug 782835.
api.ElementInternals 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.ariaActiveDescendantElement 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.ElementInternals.ariaAtomic 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaAutoComplete 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaBrailleLabel 📋	Chrome	10/25/2022	Safari	9/16/2024	692
api.ElementInternals.ariaBrailleRoleDescription 📋	Chrome	10/25/2022	Safari	9/16/2024	692
api.ElementInternals.ariaBusy 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaChecked 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaColCount 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaColIndex 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaColSpan 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaControlsElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.ElementInternals.ariaCurrent 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaDescribedByElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.ElementInternals.ariaDetailsElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.ElementInternals.ariaDisabled 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaErrorMessageElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.ElementInternals.ariaExpanded 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaFlowToElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.ElementInternals.ariaHasPopup 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaHidden 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaInvalid 📋	Chrome	5/24/2022	Firefox	10/24/2023	518
api.ElementInternals.ariaKeyShortcuts 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaLabel 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaLabelledByElements 📋	Safari	3/27/2023	Chrome	4/1/2025	736
api.ElementInternals.ariaLevel 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaLive 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaModal 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaMultiLine 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaMultiSelectable 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaOrientation 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaPlaceholder 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaPosInSet 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaPressed 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaReadOnly 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaRelevant	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaRequired 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaRoleDescription 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaRowCount 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaRowIndex 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaRowSpan 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaSelected 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaSetSize 📋	Chrome	7/27/2020	Firefox	10/24/2023	1184
api.ElementInternals.ariaSort 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaValueMax 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaValueMin 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaValueNow 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.ariaValueText 📋	Chrome	4/7/2020	Firefox	10/24/2023	1295
api.ElementInternals.checkValidity 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.form 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.labels 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.reportValidity 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.role 📋	Chrome	6/21/2022	Firefox	10/24/2023	490
api.ElementInternals.setFormValue 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.setValidity 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.shadowRoot 📋	Chrome	1/19/2021	Safari	3/27/2023	797
api.ElementInternals.states 📋	Chrome	4/13/2021	Firefox	5/14/2024	1127
api.ElementInternals.validationMessage 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.validity 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.ElementInternals.willValidate 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.EncodedAudioChunk 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.EncodedAudioChunk.EncodedAudioChunk 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.EncodedAudioChunk.byteLength 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.EncodedAudioChunk.copyTo 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.EncodedAudioChunk.duration 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.EncodedAudioChunk.timestamp 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.EncodedAudioChunk.type 📋	Chrome	9/21/2021	Safari	9/15/2025	1455
api.EncodedVideoChunk 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.EncodedVideoChunk.EncodedVideoChunk 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.EncodedVideoChunk.byteLength 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.EncodedVideoChunk.copyTo 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.EncodedVideoChunk.duration 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.EncodedVideoChunk.timestamp 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.EncodedVideoChunk.type 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.ErrorEvent 📋	Chrome	3/8/2011	Firefox	2/4/2014	1064
api.ErrorEvent.ErrorEvent 📋	Chrome	12/13/2011	Firefox	2/4/2014	784
api.ErrorEvent.colno 📋	Chrome	10/1/2013	Safari	10/16/2014	380
api.ErrorEvent.error 📋	Chrome	10/1/2013	Safari	9/20/2016	1085
api.ErrorEvent.filename 📋	Chrome	3/8/2011	Firefox	2/4/2014	1064
api.ErrorEvent.lineno 📋	Chrome	3/8/2011	Firefox	2/4/2014	1064
api.ErrorEvent.message 📋	Chrome	3/8/2011	Firefox	2/4/2014	1064
api.Event 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Node.js: Only available as an internal instance.
api.Event.Event 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.Event.bubbles 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Node.js: This is not used in Node.js and is provided purely for completeness.
api.Event.cancelBubble 📋	Safari	6/23/2003	Firefox	4/19/2017	5049	Chrome: Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Chrome Android: Starting with Chrome Android 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Firefox: Only supported for `UIEvent`, not all `Event` objects.Firefox for Android: Only supported for `UIEvent`, not all `Event` objects.Node.js: This is not used in Node.js and is provided purely for completeness.Quest Browser: Starting with Quest Browser 5.0 and Opera 45, setting this property to false does nothing, as per spec discussion.Opera: Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Opera Android: Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Samsung Internet: Starting with Samsung Internet 7.0 and Opera 45, setting this property to false does nothing, as per spec discussion.WebView Android: Starting with WebView Android 58 and Opera 45, setting this property to false does nothing, as per spec discussion.
api.Event.cancelable 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Event.composed 📋	Chrome	8/31/2016	Firefox	3/7/2017	188	Firefox: Before Firefox 95, this property was incorrectly set to `false` on `<select>` and `<input type='checkbox'>` elements.Firefox for Android: Before Firefox for Android 95, this property was incorrectly set to `false` on `<select>` and `<input type='checkbox'>` elements.Node.js: This is not used in Node.js and is provided purely for completeness.
api.Event.composedPath 📋	Chrome	8/31/2016	Firefox	3/13/2018	559	Node.js: Returns an array with either the event itself or empty.Node.js: This is not used in Node.js and is provided purely for completeness.
api.Event.currentTarget 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: On Internet Explorer 6 through 8, the event model is different. Event listeners are attached with the non-standard `EventTarget.attachEvent` method. In this model, there is no equivalent to `event.currentTarget` and `this` is the global object. One solution to emulate the `event.currentTarget` feature is to wrap your handler in a function calling the handler using `Function.prototype.call` with the element as a first argument. This way, `this` will be the expected value.
api.Event.defaultPrevented 📋	Chrome	5/25/2010	Firefox	8/16/2011	448
api.Event.eventPhase 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Event.initEvent 📋	Safari	6/23/2003	Firefox	11/20/2012	3438	Firefox: Before Firefox 17, a call to this method after the dispatching of the event raised an exception instead of doing nothing.Firefox for Android: Before Firefox for Android 17, a call to this method after the dispatching of the event raised an exception instead of doing nothing.
api.Event.isTrusted 📋	Firefox	11/29/2005	Safari	9/20/2016	3948	Chrome: Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.Chrome Android: Starting with Chrome Android 53 and Opera 40, untrusted events do not invoke the default action.Internet Explorer: In Internet Explorer, all events are trusted except those that are created with the `createEvent()` method.Quest Browser: Starting with Quest Browser 5.0 and Opera 40, untrusted events do not invoke the default action.Opera: Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.Opera Android: Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.Samsung Internet: Starting with Samsung Internet 6.0 and Opera 40, untrusted events do not invoke the default action.WebView Android: Starting with version 53, untrusted events do not invoke the default action.
api.Event.preventDefault 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Event.returnValue 📋	Safari	6/23/2003	Firefox	3/19/2019	5748
api.Event.srcElement 📋	Safari	6/23/2003	Firefox	9/5/2018	5553
api.Event.stopImmediatePropagation 📋	Chrome	5/25/2010	Firefox	1/31/2012	616
api.Event.stopPropagation 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Node.js: This is not used in Node.js and is provided purely for completeness.
api.Event.target 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Event.timeStamp 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Chrome Android: Starting with Chrome Android 49, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Deno: In Deno this represents the time since UNIX epoch, not since startup. This is considered a bug, see #10835.Firefox: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Firefox for Android: Starting with Chrome 49, Firefox for Android 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Internet Explorer: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Quest Browser: Starting with Quest Browser 5.0, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Opera: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Opera Android: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.Samsung Internet: Starting with Samsung Internet 5.0, Firefox 54 and Opera 36, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.WebView Android: Starting with version 49, this property returns `DOMHighResTimeStamp` instead of `DOMTimeStamp`.
api.Event.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.EventCounts 📋	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.@@iterator	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.entries	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.forEach	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.get	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.has	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.keys	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.size	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventCounts.values	Chrome	8/25/2020	Safari	12/12/2025	1935
api.EventSource 📋	Safari	6/7/2010	Firefox	8/16/2011	435
api.EventSource.EventSource 📋	Safari	6/7/2010	Firefox	8/16/2011	435
api.EventSource.EventSource.options_withCredentials_parameter	Firefox	3/13/2012	Safari	10/22/2013	588
api.EventSource.close 📋	Safari	6/7/2010	Firefox	8/16/2011	435
api.EventSource.error_event 📋	Safari	6/7/2010	Firefox	8/16/2011	435
api.EventSource.message_event 📋	Safari	6/7/2010	Firefox	8/16/2011	435
api.EventSource.open_event 📋	Safari	6/7/2010	Firefox	8/16/2011	435
api.EventSource.readyState 📋	Safari	6/7/2010	Firefox	8/16/2011	435
api.EventSource.url 📋	Firefox	8/16/2011	Safari	7/25/2012	344
api.EventSource.withCredentials 📋	Firefox	8/16/2011	Safari	10/22/2013	798
api.EventSource.worker_support	Safari	6/7/2010	Firefox	11/26/2024	5286	Firefox: Not supported in service workers.Firefox for Android: Not supported in service workers.
api.EventTarget 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Node.js: Only available as an internal instance.Safari: `window.EventTarget` did not exist on versions of Safari before 10.1.Safari on iOS: `window.EventTarget` did not exist on versions of Safari iOS before 10.3.WebView on iOS: `window.EventTarget` did not exist on versions of Safari iOS before 10.3.
api.EventTarget.EventTarget 📋	Chrome	1/23/2018	Safari	9/16/2020	967
api.EventTarget.addEventListener 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Before Chrome 49, the `type` and `listener` parameters were optional.Chrome Android: Before Chrome Android 49, the `type` and `listener` parameters were optional.Internet Explorer: Older versions of IE supported an equivalent, proprietary `EventTarget.attachEvent()` method.Quest Browser: Before Quest Browser 5.0, the `type` and `listener` parameters were optional.Samsung Internet: Before Samsung Internet 5.0, the `type` and `listener` parameters were optional.WebView Android: Before Chrome 49, the `type` and `listener` parameters were optional.
api.EventTarget.addEventListener.options_parameter	Chrome	3/2/2016	Safari	9/20/2016	202
api.EventTarget.addEventListener.options_parameter.options_capture_parameter 📋	Chrome	3/2/2016	Safari	9/20/2016	202
api.EventTarget.addEventListener.options_parameter.options_once_parameter 📋	Safari	9/20/2016	Chrome	12/1/2016	72
api.EventTarget.addEventListener.options_parameter.options_passive_parameter 📋	Chrome	5/25/2016	Safari	9/20/2016	118
api.EventTarget.addEventListener.options_parameter.options_passive_parameter_default_true_touch	Chrome	12/1/2016	Firefox	6/26/2018	572
api.EventTarget.addEventListener.options_parameter.options_signal_parameter 📋	Firefox	2/23/2021	Safari	9/20/2021	209
api.EventTarget.addEventListener.useCapture_parameter_optional	Safari	6/23/2003	Firefox	8/16/2011	2976
api.EventTarget.dispatchEvent 📋	Firefox	10/24/2006	Chrome	1/25/2010	1189	Internet Explorer: Older versions of IE supported an equivalent, proprietary `EventTarget.fireEvent()` method.
api.EventTarget.removeEventListener 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Older versions of IE supported an equivalent, proprietary `EventTarget.detachEvent()` method.
api.EventTarget.removeEventListener.options_parameter	Chrome	3/2/2016	Safari	9/20/2016	202
api.EventTarget.removeEventListener.useCapture_parameter_optional	Safari	6/23/2003	Firefox	8/16/2011	2976
api.ExtendableCookieChangeEvent 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.ExtendableCookieChangeEvent.ExtendableCookieChangeEvent 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.ExtendableCookieChangeEvent.changed 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.ExtendableCookieChangeEvent.deleted 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.ExtendableEvent 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ExtendableEvent.ExtendableEvent 📋	Chrome	3/3/2015	Safari	4/12/2018	1136
api.ExtendableEvent.waitUntil 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ExtendableEvent.waitUntil.async_waitUntil	Firefox	4/19/2017	Safari	4/12/2018	358
api.ExtendableMessageEvent 📋	Firefox	1/26/2016	Safari	4/12/2018	807
api.ExtendableMessageEvent.ExtendableMessageEvent 📋	Firefox	1/26/2016	Safari	4/12/2018	807
api.ExtendableMessageEvent.data 📋	Firefox	1/26/2016	Safari	4/12/2018	807
api.ExtendableMessageEvent.lastEventId 📋	Firefox	1/26/2016	Safari	4/12/2018	807
api.ExtendableMessageEvent.origin 📋	Firefox	1/26/2016	Safari	4/12/2018	807
api.ExtendableMessageEvent.ports 📋	Firefox	1/26/2016	Safari	4/12/2018	807
api.ExtendableMessageEvent.source 📋	Firefox	1/26/2016	Safari	4/12/2018	807
api.FetchEvent 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.FetchEvent.FetchEvent 📋	Chrome	7/21/2015	Safari	4/12/2018	996
api.FetchEvent.clientId 📋	Chrome	3/2/2016	Safari	4/12/2018	771
api.FetchEvent.handled 📋	Chrome	10/20/2020	Safari	9/12/2022	692
api.FetchEvent.preloadResponse 📋	Chrome	6/5/2017	Firefox	4/5/2022	1765
api.FetchEvent.request 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.FetchEvent.respondWith 📋	Chrome	4/14/2015	Safari	4/12/2018	1094
api.FetchEvent.resultingClientId 📋	Chrome	1/29/2019	Safari	9/12/2022	1322
api.File 📋	Safari	6/8/2009	Firefox	9/27/2011	841	Firefox: Non-standard implementation.Firefox for Android: Non-standard implementation.Node.js: Before 23.0.0, `File` instance cannot be cloned.Node.js: Available as a part of the `buffer` module.Node.js: Available as a part of the `buffer` module.
api.File.File 📋	Firefox	3/18/2014	Safari	3/27/2017	1105
api.File.lastModified 📋	Chrome	8/2/2011	Safari	9/20/2016	1876
api.File.name 📋	Firefox	1/21/2010	Safari	10/16/2014	1729
api.File.webkitRelativePath 📋	Chrome	8/2/2011	Safari	4/12/2018	2445	Firefox for Android: Always an empty string (bug 1973726).
api.FileList 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.FileList.item 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.FileList.length 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.FileReader 📋	Firefox	1/21/2010	Safari	7/25/2012	916	Firefox: Before Firefox 4, `Blob` parameters were `File` parameters.
api.FileReader.FileReader 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.abort 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.abort_event 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.error 📋	Firefox	1/21/2010	Safari	7/25/2012	916	Firefox: Before Firefox 13, the `error` property returned a `FileError` object.Firefox: From Firefox 13 to Firefox 58, the `error` property returned a `DOMError` object.Firefox: From Firefox 58, the `error` property returns a `DOMException` object.Firefox for Android: From Firefox 32 to Firefox 58, the `error` property returned a `DOMError` object.Firefox for Android: From Firefox 58, the `error` property returns a `DOMException` object.Internet Explorer: The `error` property returns a `DOMError` object.Safari: The `error` property returns a `DOMError` object.Safari on iOS: The `error` property returns a `DOMError` object.WebView on iOS: The `error` property returns a `DOMError` object.
api.FileReader.error_event 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.load_event 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.loadend_event 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.loadstart_event 📋	Chrome	9/2/2010	Firefox	7/28/2020	3617	Firefox: `loadstart` event dispatches synchronously (should be asynchronously as per spec).Firefox for Android: `loadstart` event dispatches synchronously (should be asynchronously as per spec).
api.FileReader.progress_event 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.readAsArrayBuffer 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.readAsBinaryString 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.readAsDataURL 📋	Firefox	1/21/2010	Safari	7/25/2012	916	Firefox for Android: Using the camera in Android 8.x raises an exception. See bug 1511083.
api.FileReader.readAsText 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.readyState 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.result 📋	Firefox	1/21/2010	Safari	7/25/2012	916
api.FileReader.worker_support	Chrome	9/2/2010	Firefox	4/26/2016	2063
api.FileReaderSync 📋	Chrome	10/19/2010	Safari	7/25/2012	645
api.FileReaderSync.FileReaderSync 📋	Chrome	10/19/2010	Safari	7/25/2012	645
api.FileReaderSync.readAsArrayBuffer 📋	Chrome	2/3/2011	Safari	7/25/2012	538
api.FileReaderSync.readAsBinaryString 📋	Chrome	10/19/2010	Safari	7/25/2012	645
api.FileReaderSync.readAsDataURL 📋	Chrome	10/19/2010	Safari	7/25/2012	645
api.FileReaderSync.readAsText 📋	Chrome	10/19/2010	Safari	7/25/2012	645
api.FileReaderSync.worker_support	Chrome	10/19/2010	Safari	7/25/2012	645
api.FileSystem 📋	Chrome	10/19/2010	Safari	4/12/2018	2732	Edge: Before Edge 79, this API was only supported in drag-and-drop scenarios using the `DataTransferItem.webkitGetAsEntry()` method. It was not available for use in file or folder picker panels (such as when you use an `<input>` element with the `HTMLInputElement.webkitdirectory` attribute.
api.FileSystem.name 📋	Chrome	10/19/2010	Safari	4/12/2018	2732
api.FileSystem.root 📋	Chrome	10/19/2010	Safari	4/12/2018	2732
api.FileSystemDirectoryEntry 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemDirectoryEntry.createReader 📋	Chrome	8/2/2011	Safari	4/12/2018	2445
api.FileSystemDirectoryEntry.getDirectory 📋	Chrome	12/2/2010	Safari	4/12/2018	2688	Firefox: In Firefox, the `errorCallback`'s input parameter is a `DOMException` rather than a `FileError` object.Firefox for Android: In Firefox for Android, the `errorCallback`'s input parameter is a `DOMException` rather than a `FileError` object.
api.FileSystemDirectoryEntry.getFile 📋	Chrome	12/2/2010	Safari	4/12/2018	2688	Firefox: In Firefox, the `errorCallback`'s input parameter is a `DOMException` rather than a `FileError` object.Firefox for Android: In Firefox for Android, the `errorCallback`'s input parameter is a `DOMException` rather than a `FileError` object.
api.FileSystemDirectoryHandle 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryHandle.@@asyncIterator 📋	Chrome	10/20/2020	Safari	3/27/2023	888
api.FileSystemDirectoryHandle.entries 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryHandle.getDirectoryHandle 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryHandle.getFileHandle 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryHandle.keys 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryHandle.removeEntry 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryHandle.resolve 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryHandle.values 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemDirectoryReader 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemDirectoryReader.readEntries 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemEntry 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemEntry.filesystem 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemEntry.fullPath 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemEntry.getParent 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemEntry.isDirectory 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemEntry.isFile 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemEntry.name 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemFileEntry 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemFileEntry.file 📋	Chrome	12/2/2010	Safari	4/12/2018	2688
api.FileSystemFileHandle 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemFileHandle.createSyncAccessHandle 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemFileHandle.createWritable 📋	Chrome	10/20/2020	Safari	9/15/2025	1791
api.FileSystemFileHandle.getFile 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemHandle 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemHandle.isSameEntry 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemHandle.kind 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemHandle.name 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.FileSystemSyncAccessHandle 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemSyncAccessHandle.close 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemSyncAccessHandle.close.sync_version	Chrome	11/29/2022	Safari	3/27/2023	118
api.FileSystemSyncAccessHandle.flush 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemSyncAccessHandle.flush.sync_version	Chrome	11/29/2022	Safari	3/27/2023	118
api.FileSystemSyncAccessHandle.getSize 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemSyncAccessHandle.getSize.sync_version	Chrome	11/29/2022	Safari	3/27/2023	118
api.FileSystemSyncAccessHandle.read 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemSyncAccessHandle.truncate 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemSyncAccessHandle.truncate.sync_version	Chrome	11/29/2022	Safari	3/27/2023	118
api.FileSystemSyncAccessHandle.write 📋	Safari	12/13/2021	Firefox	3/14/2023	456
api.FileSystemWritableFileStream 📋	Chrome	10/20/2020	Safari	9/15/2025	1791
api.FileSystemWritableFileStream.seek 📋	Chrome	10/20/2020	Safari	9/15/2025	1791
api.FileSystemWritableFileStream.truncate 📋	Chrome	10/20/2020	Safari	9/15/2025	1791
api.FileSystemWritableFileStream.write 📋	Chrome	10/20/2020	Safari	9/15/2025	1791
api.FocusEvent 📋	Chrome	3/26/2013	Safari	10/22/2013	210
api.FocusEvent.FocusEvent 📋	Chrome	3/26/2013	Safari	10/22/2013	210
api.FocusEvent.relatedTarget 📋	Chrome	3/26/2013	Safari	10/22/2013	210
api.FontFace 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.FontFace 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.display 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.FontFace.family 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.featureSettings 📋	Firefox	9/22/2015	Chrome	9/2/2025	3633	Chrome: The property can be set, but has no effect. See bug 324519293Chrome Android: The property can be set, but has no effect. See bug 324519293Edge: The property can be set, but has no effect. See bug 324519293Quest Browser: The property can be set, but has no effect. See bug 324519293Opera: The property can be set, but has no effect. See bug 324519293Opera Android: The property can be set, but has no effect. See bug 324519293WebView Android: The property can be set, but has no effect. See bug 324519293
api.FontFace.load 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.loaded 📋	Chrome	8/26/2014	Safari	9/20/2016	756
api.FontFace.status 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.stretch 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.style 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.unicodeRange 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.weight 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFace.worker_support	Chrome	9/4/2018	Firefox	9/20/2022	1477
api.FontFaceSet 📋	Chrome	5/20/2014	Safari	9/20/2016	854	Chrome: Chrome does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.Chrome Android: Chrome Android does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.Edge: Edge does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.Quest Browser: Quest Browser does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.Opera: Opera does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.Opera Android: Opera Android does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.Samsung Internet: Samsung Internet does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.WebView Android: WebView Android does not expose the `FontFaceSet` interface directly, and is only available through `Document.fonts` or `WorkerGlobalScope.fonts`.
api.FontFaceSet.@@iterator 📋	Firefox	9/22/2015	Safari	9/20/2016	364
api.FontFaceSet.add 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.check 📋	Firefox	9/22/2015	Chrome	12/5/2023	2996	Chrome: Prior to version 120, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.Chrome Android: Prior to version 120, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.Edge: Prior to version 120, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.Quest Browser: Prior to version false, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.Opera: Prior to version 106, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.Opera Android: Prior to version 80, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.Samsung Internet: Prior to version 25.0, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.WebView Android: Prior to version 120, this method returned `false` instead of `true` for nonexistent or locally installed fonts. See bug 40893726.
api.FontFaceSet.clear 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.delete 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.entries	Firefox	9/22/2015	Safari	9/20/2016	364
api.FontFaceSet.forEach	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.has	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.keys	Firefox	9/22/2015	Safari	9/20/2016	364
api.FontFaceSet.load 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.loading_event 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.loadingdone_event 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.loadingerror_event 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.ready 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.size	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.status 📋	Chrome	5/20/2014	Safari	9/20/2016	854
api.FontFaceSet.values	Firefox	9/22/2015	Safari	9/20/2016	364
api.FontFaceSet.worker_support	Chrome	9/4/2018	Firefox	9/20/2022	1477
api.FormData 📋	Chrome	5/25/2010	Firefox	3/22/2011	301	Firefox: Before Firefox 7, specifying a `Blob` as the data to append to the object, the filename reported in the `Content-Disposition` HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename `blob` is sent.Firefox for Android: Before Firefox for Android 7, specifying a `Blob` as the data to append to the object, the filename reported in the `Content-Disposition` HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox for Android 7, the filename `blob` is sent.WebView Android: XHR in Android 4.0 sends empty content for `FormData` with `blob`.
api.FormData.@@iterator	Firefox	1/26/2016	Safari	4/12/2018	807
api.FormData.FormData 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
api.FormData.FormData.submitter	Firefox	3/14/2023	Chrome	4/4/2023	21
api.FormData.append 📋	Chrome	5/25/2010	Firefox	3/22/2011	301	Firefox: Before Firefox 7, specifying a `Blob` as the data to append to the object, the filename reported in the `Content-Disposition` HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename `blob` is sent.Firefox for Android: Before Firefox for Android 7, specifying a `Blob` as the data to append to the object, the filename reported in the `Content-Disposition` HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox for Android 7, the filename `blob` is sent.Internet Explorer: With the "Include local directory pass when uploading files to a server" option enabled, IE will change the filename inside the `Blob` on the fly. To have direct control of the sent filename, the developer should send the filename as the third parameter value, i.e. `formData.append(name, value, filename)`.WebView Android: XHR in Android 4.0 sends empty content for `FormData` with `blob`.
api.FormData.append.filename_parameter	Chrome	12/13/2011	Firefox	6/25/2013	560
api.FormData.delete 📋	Firefox	7/2/2015	Safari	4/12/2018	1015
api.FormData.entries	Firefox	1/26/2016	Safari	4/12/2018	807
api.FormData.forEach	Chrome	4/13/2016	Safari	4/12/2018	729
api.FormData.get 📋	Firefox	7/2/2015	Safari	4/12/2018	1015
api.FormData.getAll 📋	Firefox	7/2/2015	Safari	4/12/2018	1015
api.FormData.has 📋	Firefox	7/2/2015	Safari	4/12/2018	1015
api.FormData.keys	Firefox	1/26/2016	Safari	4/12/2018	807
api.FormData.set 📋	Firefox	7/2/2015	Safari	4/12/2018	1015
api.FormData.values	Firefox	1/26/2016	Safari	4/12/2018	807
api.FormData.worker_support	Firefox	7/2/2015	Safari	3/24/2020	1727
api.FormDataEvent 📋	Chrome	9/10/2019	Safari	9/20/2021	741
api.FormDataEvent.FormDataEvent 📋	Chrome	9/10/2019	Safari	9/20/2021	741
api.FormDataEvent.formData 📋	Chrome	9/10/2019	Safari	9/20/2021	741
api.FragmentDirective 📋	Chrome	4/7/2020	Safari	3/31/2025	1819
api.GPU 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPU.getPreferredCanvasFormat 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPU.requestAdapter 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPU.wgslLanguageFeatures 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter.features 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter.info 📋	Chrome	7/23/2024	Safari	9/15/2025	419	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.Samsung Internet: Supported on ChromeOS, macOS, and Windows.Samsung Internet: Supported on Linux (Intel Gen12+ GPUs only) since Samsung Internet false.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUAdapter.limits 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter.requestDevice 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.architecture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.description 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.device 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.isFallbackAdapter 📋	Chrome	4/29/2025	Safari	9/15/2025	139	Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.
api.GPUAdapterInfo.vendor 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroup.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroupLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroupLayout.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.destroy 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.getMappedRange 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.mapAsync 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.mapState 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.size 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.unmap 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.usage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext.canvas 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext.configure 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome: The `rgba8unorm` format is currently not supported on macOS. See bug 40823053.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Edge: The `rgba8unorm` format is currently not supported on macOS. See bug 40823053.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera: The `rgba8unorm` format is currently not supported on macOS. See bug 40823053.
api.GPUCanvasContext.getConfiguration 📋	Chrome	11/12/2024	Safari	9/15/2025	307	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.Samsung Internet: Supported on ChromeOS, macOS, and Windows.Samsung Internet: Supported on Linux (Intel Gen12+ GPUs only) since Samsung Internet false.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUCanvasContext.getCurrentTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext.unconfigure 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandBuffer.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.beginComputePass 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.beginRenderPass 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.clearBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyBufferToBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyBufferToTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyTextureToBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyTextureToTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.finish 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.insertDebugMarker 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.popDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.pushDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.resolveQuerySet 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationInfo 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationInfo.messages 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.length 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.lineNum 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.linePos 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.message 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.offset 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.type 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.dispatchWorkgroups 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.dispatchWorkgroupsIndirect 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.end 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.insertDebugMarker 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.popDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.pushDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.setBindGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.setPipeline 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePipeline 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePipeline.getBindGroupLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePipeline.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createBindGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createBindGroupLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome: Before version 138, this method does not throw a `RangeError` exception when `mappedAtCreation` is true but `size` is not a multiple of 4; it generates a validation error instead.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Edge: Before version 138, this method does not throw a `RangeError` exception when `mappedAtCreation` is true but `size` is not a multiple of 4; it generates a validation error instead.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera: Before version 122, this method does not throw a `RangeError` exception when `mappedAtCreation` is true but `size` is not a multiple of 4; it generates a validation error instead.
api.GPUDevice.createCommandEncoder 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createComputePipeline 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createComputePipelineAsync 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createPipelineLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createQuerySet 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createRenderBundleEncoder 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createRenderPipeline 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createRenderPipelineAsync 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createSampler 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createShaderModule 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.destroy 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.features 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.importExternalTexture 📋	Chrome	5/2/2023	Firefox	10/14/2025	896	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.importExternalTexture.videoframe_source	Chrome	8/15/2023	Firefox	10/14/2025	791	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.limits 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.lost 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.popErrorScope 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.pushErrorScope 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.queue 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDeviceLostInfo 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDeviceLostInfo.message 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDeviceLostInfo.reason 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUExternalTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUExternalTexture.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUInternalError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUInternalError.GPUInternalError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUOutOfMemoryError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUOutOfMemoryError.GPUOutOfMemoryError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError.GPUPipelineError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError.GPUPipelineError.message_optional	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError.reason 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineLayout.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.count 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.destroy 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.type 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.copyExternalImageToTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.onSubmittedWorkDone 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.submit 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.writeBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.writeTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundle 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundle.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.draw 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.drawIndexed 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.drawIndexedIndirect 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.drawIndirect 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.finish 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.insertDebugMarker 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.popDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.pushDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setBindGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setIndexBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setPipeline 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setVertexBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.beginOcclusionQuery 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.draw 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.drawIndexed 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.drawIndexedIndirect 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.drawIndirect 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.end 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.endOcclusionQuery 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.executeBundles 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.insertDebugMarker 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.popDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.pushDebugGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setBindGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setBlendConstant 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setIndexBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setPipeline 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setScissorRect 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setStencilReference 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setVertexBuffer 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setViewport 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPipeline 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPipeline.getBindGroupLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPipeline.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSampler 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSampler.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUShaderModule 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUShaderModule.getCompilationInfo 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUShaderModule.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.@@iterator 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.entries 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.feature_texture-compression-astc-sliced-3d 📋	Firefox	7/22/2025	Safari	9/15/2025	55	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUSupportedFeatures.feature_texture-compression-bc-sliced-3d 📋	Firefox	7/22/2025	Safari	9/15/2025	55	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUSupportedFeatures.forEach 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.has 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.keys 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.size 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.values 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxBindGroups 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxBindGroupsPlusVertexBuffers 📋	Chrome	12/5/2023	Safari	9/15/2025	650	Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.
api.GPUSupportedLimits.maxBindingsPerBindGroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxBufferSize 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxColorAttachmentBytesPerSample 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxColorAttachments 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeInvocationsPerWorkgroup 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupSizeX 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupSizeY 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupSizeZ 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupStorageSize 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupsPerDimension 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxDynamicStorageBuffersPerPipelineLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxDynamicUniformBuffersPerPipelineLayout 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxInterStageShaderVariables 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxSampledTexturesPerShaderStage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxSamplersPerShaderStage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxStorageBufferBindingSize 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxStorageBuffersPerShaderStage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxStorageTexturesPerShaderStage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureArrayLayers 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureDimension1D 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureDimension2D 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureDimension3D 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxUniformBufferBindingSize 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxUniformBuffersPerShaderStage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxVertexAttributes 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxVertexBufferArrayStride 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxVertexBuffers 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.minStorageBufferOffsetAlignment 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.minUniformBufferOffsetAlignment 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.createView 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.depthOrArrayLayers 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.destroy 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.dimension 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.format 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.height 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.mipLevelCount 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.sampleCount 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.usage 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.width 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTextureView 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTextureView.label 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUUncapturedErrorEvent 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUUncapturedErrorEvent.GPUUncapturedErrorEvent 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUUncapturedErrorEvent.error 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUValidationError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUValidationError.GPUValidationError 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GainNode 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.GainNode.GainNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.GainNode.gain 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.Gamepad 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.Gamepad.axes 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.Gamepad.buttons 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.Gamepad.connected 📋	Chrome	2/21/2013	Safari	3/27/2017	1495
api.Gamepad.id 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.Gamepad.index 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.Gamepad.mapping 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.Gamepad.timestamp 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.GamepadButton 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.GamepadButton.pressed 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.GamepadButton.value 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.GamepadEvent 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.GamepadEvent.GamepadEvent 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.GamepadEvent.gamepad 📋	Chrome	7/31/2012	Safari	3/27/2017	1700
api.GamepadHapticActuator 📋	Firefox	8/8/2017	Safari	3/27/2023	2057
api.GamepadHapticActuator.type	Firefox	8/8/2017	Safari	3/27/2023	2057
api.Geolocation 📋	Firefox	6/30/2009	Safari	6/7/2010	342	Firefox: GPSD (GPS daemon) support added in Firefox 3.6. WiFi-based location is provided by Google (privacy) or a custom provider (MLS instructions).
api.Geolocation.clearWatch 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.Geolocation.getCurrentPosition 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.Geolocation.secure_context_required	Chrome	4/13/2016	Firefox	8/8/2017	482	WebView Android: Secure context is only required for applications targeting Android Nougat (7) and higher. See bug 40465140.
api.Geolocation.watchPosition 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates 📋	Chrome	12/10/2019	Safari	3/24/2020	105
api.GeolocationCoordinates.accuracy 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates.altitude 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates.altitudeAccuracy 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates.heading 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates.latitude 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates.longitude 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates.secure_context_required	Chrome	12/1/2015	Firefox	8/8/2017	616
api.GeolocationCoordinates.speed 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationCoordinates.toJSON 📋	Chrome	6/11/2024	Safari	9/16/2024	97
api.GeolocationPosition 📋	Chrome	12/10/2019	Safari	3/24/2020	105
api.GeolocationPosition.coords 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationPosition.secure_context_required	Chrome	12/1/2015	Firefox	8/8/2017	616
api.GeolocationPosition.timestamp 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationPosition.toJSON 📋	Chrome	6/11/2024	Safari	9/16/2024	97
api.GeolocationPositionError 📋	Chrome	12/10/2019	Safari	3/24/2020	105
api.GeolocationPositionError.code 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationPositionError.message 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.GeolocationPositionError.secure_context_required	Chrome	12/1/2015	Firefox	8/8/2017	616
api.HTMLAllCollection 📋	Chrome	5/25/2010	Firefox	9/2/2014	1561
api.HTMLAllCollection.item 📋	Chrome	5/25/2010	Firefox	9/2/2014	1561
api.HTMLAllCollection.length 📋	Safari	6/7/2010	Firefox	9/2/2014	1548
api.HTMLAllCollection.namedItem 📋	Chrome	5/25/2010	Firefox	9/2/2014	1561
api.HTMLAnchorElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.charset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.coords 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.download 📋	Chrome	10/25/2011	Safari	3/27/2017	1980
api.HTMLAnchorElement.hash 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: From Firefox 29 to Firefox 40, the returned value was incorrectly percent-decoded.Firefox for Android: From Firefox for Android 29 to Firefox for Android 40, the returned value was incorrectly percent-decoded.
api.HTMLAnchorElement.host 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: In Internet Explorer 9, the host of an `<a>` always include the port (e.g. `developer.mozilla.org:443`), even if there is no explicit port in the `href` attribute value.
api.HTMLAnchorElement.hostname 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.hreflang 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.origin 📋	Chrome	12/2/2010	Firefox	12/10/2013	1104	Firefox: Before Firefox 49, results for URL using the `blob` scheme incorrectly returned `null`.Firefox for Android: Before Firefox for Android 49, results for URL using the `blob` scheme incorrectly returned `null`.
api.HTMLAnchorElement.password 📋	Firefox	12/10/2013	Safari	9/20/2016	1015
api.HTMLAnchorElement.pathname 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.
api.HTMLAnchorElement.ping 📋	Firefox	11/9/2004	Safari	7/20/2011	2444	Firefox: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.Firefox for Android: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.
api.HTMLAnchorElement.port 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.protocol 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.referrerPolicy 📋	Chrome	7/20/2016	Safari	9/16/2020	1519
api.HTMLAnchorElement.rel 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.relList 📋	Firefox	6/10/2014	Chrome	3/6/2018	1365
api.HTMLAnchorElement.rev 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.search 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.
api.HTMLAnchorElement.shape 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.target 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.text 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.toString 📋	Safari	10/26/2007	Chrome	7/20/2016	3190
api.HTMLAnchorElement.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAnchorElement.username 📋	Firefox	12/10/2013	Safari	9/20/2016	1015
api.HTMLAreaElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.alt 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.coords 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.download 📋	Firefox	4/2/2013	Safari	3/27/2017	1455
api.HTMLAreaElement.hash 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: From Firefox 29 to Firefox 40, the returned value was incorrectly percent-decoded.Firefox for Android: From Firefox for Android 29 to Firefox for Android 40, the returned value was incorrectly percent-decoded.
api.HTMLAreaElement.host 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: In Internet Explorer 9, the host of an `<a>` always include the port (e.g. `developer.mozilla.org:443`), even if there is no explicit port in the `href` attribute value.
api.HTMLAreaElement.hostname 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.noHref 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.origin 📋	Firefox	12/10/2013	Safari	9/20/2016	1015	Firefox: Before Firefox 49, results for URL using the `blob` scheme incorrectly returned `null`.Firefox for Android: Before Firefox for Android 49, results for URL using the `blob` scheme incorrectly returned `null`.
api.HTMLAreaElement.password 📋	Firefox	12/10/2013	Safari	9/20/2016	1015
api.HTMLAreaElement.pathname 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.
api.HTMLAreaElement.ping 📋	Firefox	11/9/2004	Safari	7/20/2011	2444	Firefox: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.Firefox for Android: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.
api.HTMLAreaElement.port 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.protocol 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.referrerPolicy 📋	Chrome	7/20/2016	Safari	4/26/2021	1741
api.HTMLAreaElement.rel 📋	Firefox	6/10/2014	Chrome	10/12/2016	855
api.HTMLAreaElement.relList 📋	Firefox	6/10/2014	Chrome	3/6/2018	1365
api.HTMLAreaElement.search 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the `pathname` and `search` `HTMLHyperlinkElementUtils` properties returned the wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return `'/x?a=true&b=false'` and `search` would return '', rather than `'/x'` and `'?a=true&b=false'` respectively. This has now been fixed.
api.HTMLAreaElement.shape 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.target 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLAreaElement.toString 📋	Firefox	6/25/2013	Safari	3/27/2017	1371
api.HTMLAreaElement.username 📋	Firefox	12/10/2013	Safari	9/20/2016	1015
api.HTMLAudioElement 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLAudioElement.Audio 📋	Safari	3/18/2008	Chrome	1/25/2010	678
api.HTMLBRElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBRElement.clear 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBaseElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBaseElement.href 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBaseElement.href.forbid_special_characters	Chrome	9/5/2017	Firefox	7/9/2024	2499
api.HTMLBaseElement.target 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBodyElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBodyElement.aLink 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBodyElement.background 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBodyElement.bgColor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBodyElement.link 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBodyElement.text 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLBodyElement.vLink 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLButtonElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLButtonElement.checkValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLButtonElement.command 📋	Chrome	4/1/2025	Safari	12/12/2025	255
api.HTMLButtonElement.command.request-close 📋	Chrome	8/5/2025	Safari	12/12/2025	129
api.HTMLButtonElement.commandForElement 📋	Chrome	4/1/2025	Safari	12/12/2025	255
api.HTMLButtonElement.commandForElement.implicit_anchor_reference 📋	Chrome	4/1/2025	Firefox	1/13/2026	287
api.HTMLButtonElement.disabled 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLButtonElement.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLButtonElement.formAction 📋	Chrome	2/3/2011	Safari	7/20/2011	167	Firefox: In Firefox 56, the implementation has been updated so that the `formAction` property returns the correct form submission URL, as per spec, when the associated button is being used to submit a form (bug 1366361).Firefox for Android: In Firefox for Android 56, the implementation has been updated so that the `formAction` property returns the correct form submission URL, as per spec, when the associated button is being used to submit a form (bug 1366361).
api.HTMLButtonElement.formEnctype 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLButtonElement.formMethod 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLButtonElement.formNoValidate 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLButtonElement.formTarget 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLButtonElement.labels 📋	Chrome	9/2/2010	Firefox	9/28/2017	2583
api.HTMLButtonElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLButtonElement.popoverTargetAction 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLButtonElement.popoverTargetElement 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLButtonElement.popoverTargetElement.implicit_anchor_reference 📋	Chrome	2/4/2025	Firefox	1/13/2026	343
api.HTMLButtonElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLButtonElement.setCustomValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLButtonElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLButtonElement.validationMessage 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
api.HTMLButtonElement.validity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLButtonElement.value 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLButtonElement.willValidate 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.HTMLCanvasElement 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.HTMLCanvasElement.captureStream 📋	Firefox	12/15/2015	Safari	9/19/2017	644
api.HTMLCanvasElement.getContext 📋	Safari	4/29/2005	Chrome	12/11/2008	1322
api.HTMLCanvasElement.getContext.2d_context	Safari	4/29/2005	Chrome	12/11/2008	1322
api.HTMLCanvasElement.getContext.2d_context.options_willReadFrequently_parameter 📋	Firefox	3/18/2014	Safari	9/16/2024	3835
api.HTMLCanvasElement.getContext.bitmaprenderer_context	Firefox	4/26/2016	Chrome	4/17/2018	721
api.HTMLCanvasElement.getContext.webgl2_context	Firefox	1/24/2017	Safari	9/20/2021	1700
api.HTMLCanvasElement.getContext.webgl2_context.options_alpha_parameter 📋	Firefox	6/10/2014	Safari	9/20/2021	2659
api.HTMLCanvasElement.getContext.webgl2_context.options_failIfMajorPerformanceCaveat_parameter 📋	Firefox	9/22/2015	Safari	9/20/2021	2190
api.HTMLCanvasElement.getContext.webgl2_context.options_powerPreference_parameter 📋	Firefox	10/23/2018	Safari	9/20/2021	1063	Chrome: Chrome respects the GPU hint on macOS only.Chrome Android: Chrome Android respects the GPU hint on macOS only.Edge: Edge respects the GPU hint on macOS only.Firefox: Firefox respects the GPU hint on macOS only.Quest Browser: Quest Browser respects the GPU hint on macOS only.Opera: Opera respects the GPU hint on macOS only.Opera Android: Opera Android respects the GPU hint on macOS only.Samsung Internet: Samsung Internet respects the GPU hint on macOS only.WebView Android: WebView Android respects the GPU hint on macOS only.
api.HTMLCanvasElement.getContext.webgl_context	Firefox	9/17/2013	Safari	10/16/2014	394
api.HTMLCanvasElement.getContext.webgl_context.options_alpha_parameter 📋	Chrome	1/14/2014	Safari	3/27/2017	1168
api.HTMLCanvasElement.getContext.webgl_context.options_failIfMajorPerformanceCaveat_parameter 📋	Chrome	2/20/2014	Safari	3/27/2017	1131
api.HTMLCanvasElement.getContext.webgl_context.options_powerPreference_parameter 📋	Safari	3/27/2017	Chrome	6/4/2019	799	Chrome: Chrome respects the GPU hint on macOS only.Chrome Android: Chrome Android respects the GPU hint on macOS only.Edge: Edge respects the GPU hint on macOS only.Firefox: Firefox respects the GPU hint on macOS only.Quest Browser: Quest Browser respects the GPU hint on macOS only.Opera: Opera respects the GPU hint on macOS only.Opera Android: Opera Android respects the GPU hint on macOS only.Samsung Internet: Samsung Internet respects the GPU hint on macOS only.WebView Android: WebView Android respects the GPU hint on macOS only.
api.HTMLCanvasElement.getContext.webgpu_context 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.HTMLCanvasElement.height 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.HTMLCanvasElement.toBlob 📋	Firefox	1/8/2013	Safari	9/19/2017	1715
api.HTMLCanvasElement.toBlob.quality_parameter	Firefox	10/29/2013	Safari	9/19/2017	1421
api.HTMLCanvasElement.toBlob.type_parameter_jpeg	Firefox	1/8/2013	Safari	9/19/2017	1715
api.HTMLCanvasElement.toBlob.type_parameter_png	Firefox	1/8/2013	Safari	9/19/2017	1715
api.HTMLCanvasElement.toDataURL 📋	Firefox	10/24/2006	Safari	6/8/2009	958
api.HTMLCanvasElement.toDataURL.type_parameter_jpeg	Firefox	1/8/2013	Safari	9/19/2017	1715
api.HTMLCanvasElement.toDataURL.type_parameter_png	Firefox	1/8/2013	Safari	9/19/2017	1715
api.HTMLCanvasElement.transferControlToOffscreen 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.HTMLCanvasElement.webglcontextcreationerror_event 📋	Chrome	2/3/2011	Firefox	9/20/2016	2056
api.HTMLCanvasElement.webglcontextlost_event 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLCanvasElement.webglcontextrestored_event 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLCanvasElement.width 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.HTMLCollection 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLCollection.item 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLCollection.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLCollection.namedItem 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLDListElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLDListElement.compact 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLDataElement 📋	Firefox	6/25/2013	Chrome	10/17/2017	1575
api.HTMLDataElement.value 📋	Firefox	6/25/2013	Chrome	10/17/2017	1575
api.HTMLDataListElement 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
api.HTMLDataListElement.options 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
api.HTMLDetailsElement 📋	Chrome	3/8/2011	Firefox	9/20/2016	2023
api.HTMLDetailsElement.name 📋	Chrome	12/5/2023	Firefox	9/3/2024	273
api.HTMLDetailsElement.open 📋	Chrome	3/8/2011	Firefox	9/20/2016	2023
api.HTMLDialogElement 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDialogElement.cancel_event 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDialogElement.close 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDialogElement.close_event 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDialogElement.open 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDialogElement.requestClose 📋	Chrome	3/4/2025	Firefox	5/27/2025	84
api.HTMLDialogElement.returnValue 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDialogElement.show 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDialogElement.showModal 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
api.HTMLDirectoryElement	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLDirectoryElement.compact 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLDivElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLDivElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLDocument 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLElement.accessKey 📋	Firefox	6/21/2011	Safari	7/25/2012	400
api.HTMLElement.attachInternals 📋	Chrome	9/10/2019	Safari	3/27/2023	1294
api.HTMLElement.autofocus 📋	Chrome	12/10/2019	Firefox	2/14/2023	1162	Chrome: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Chrome Android: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Edge: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Firefox: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Firefox for Android: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Internet Explorer: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Quest Browser: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Opera: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Opera Android: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Safari: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Safari on iOS: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.Samsung Internet: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.WebView Android: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.WebView on iOS: Supported for `HTMLButtonElement`, `HTMLInputElement`, `HTMLSelectElement`, and `HTMLTextAreaElement`.
api.HTMLElement.beforetoggle_event 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLElement.beforetoggle_event.dialog_elements 📋	Firefox	11/26/2024	Safari	9/15/2025	293
api.HTMLElement.beforetoggle_event.popover_elements 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLElement.blur 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.HTMLElement.change_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.click 📋	Firefox	6/17/2008	Safari	7/25/2012	1499	Chrome: Before Chrome 19, `click()` is only defined on buttons and inputs.Chrome Android: Before Chrome Android 25, `click()` is only defined on buttons and inputs.Firefox: Before Firefox 5, `click()` is only defined on buttons and inputs, and has no effect on text and file inputs.Firefox: Starting in Firefox 75, the `click()` function works even when the element is not attached to a DOM tree.Firefox for Android: Before Firefox 5, `click()` is only defined on buttons and inputs, and has no effect on text and file inputs.Firefox for Android: Starting in Firefox for Android 79, the `click()` function works even when the element is not attached to a DOM tree.Quest Browser: Before Quest Browser 5.0, `click()` is only defined on buttons and inputs.Samsung Internet: Before Samsung Internet 1.5, `click()` is only defined on buttons and inputs.WebView Android: Before WebView Android 4.4, `click()` is only defined on buttons and inputs.
api.HTMLElement.command_event 📋	Chrome	4/1/2025	Safari	12/12/2025	255
api.HTMLElement.contentEditable 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.HTMLElement.contentEditable.plaintext-only	Safari	7/20/2011	Firefox	3/4/2025	4976
api.HTMLElement.dataset 📋	Chrome	10/19/2010	Firefox	8/16/2011	301
api.HTMLElement.dir 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.drag_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372	Firefox: The `drag` event handler receives a `DragEvent` whose coordinate properties (`clientX`/`clientY`, `pageX`/`pageY`, `screenX`/`screenY`) are always `0`. See bug 505521.Firefox for Android: The `drag` event handler receives a `DragEvent` whose coordinate properties (`clientX`/`clientY`, `pageX`/`pageY`, `screenX`/`screenY`) are always `0`. See bug 505521.
api.HTMLElement.dragend_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372
api.HTMLElement.dragenter_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372
api.HTMLElement.draggable 📋	Firefox	10/24/2006	Safari	6/7/2010	1322
api.HTMLElement.dragleave_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372
api.HTMLElement.dragover_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372
api.HTMLElement.dragstart_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372
api.HTMLElement.drop_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372
api.HTMLElement.enterKeyHint 📋	Chrome	9/10/2019	Firefox	11/2/2021	784
api.HTMLElement.error_event 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLElement.focus 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If there's no hardware keyboard connected and the user has not yet interacted with the page, then calling `focus()` on an `<input>` element has no effect (for example, the element does not match the `:focus` selector).WebView on iOS: If there's no hardware keyboard connected and the user has not yet interacted with the page, then calling `focus()` on an `<input>` element has no effect (for example, the element does not match the `:focus` selector).
api.HTMLElement.focus.options_focusVisible_parameter	Firefox	8/23/2022	Chrome	2/10/2026	1267
api.HTMLElement.focus.options_preventScroll_parameter	Chrome	1/23/2018	Safari	9/20/2021	1336
api.HTMLElement.hidden 📋	Chrome	9/2/2010	Safari	7/20/2011	321
api.HTMLElement.hidePopover 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLElement.inert 📋	Safari	5/16/2022	Firefox	4/11/2023	330
api.HTMLElement.innerText 📋	Safari	6/23/2003	Firefox	3/8/2016	4642
api.HTMLElement.inputMode 📋	Chrome	4/17/2018	Firefox	12/7/2021	1330
api.HTMLElement.isContentEditable 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.HTMLElement.lang 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.load_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.nonce 📋	Chrome	9/5/2017	Safari	3/14/2022	1651	Safari: The property is defined only for its useful elements: `<link>`, `<script>`, and `<style>`; it is undefined for all other elements.Safari on iOS: The property is defined only for its useful elements: `<link>`, `<script>`, and `<style>`; it is undefined for all other elements.WebView on iOS: The property is defined only for its useful elements: `<link>`, `<script>`, and `<style>`; it is undefined for all other elements.
api.HTMLElement.offsetHeight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.offsetLeft 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.offsetParent 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.offsetTop 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.offsetWidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.outerText 📋	Safari	4/15/2005	Firefox	3/8/2022	6171
api.HTMLElement.popover 📋	Chrome	5/30/2023	Firefox	4/16/2024	322	Safari on iOS: On iOS and iPadOS, popovers are not dismissed when the user taps outside of the popover area, see bug 267688.WebView on iOS: On iOS and iPadOS, popovers are not dismissed when the user taps outside of the popover area, see bug 267688.
api.HTMLElement.showPopover 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLElement.showPopover.options_source_parameter 📋	Chrome	5/27/2025	Firefox	10/14/2025	140	Chrome: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Chrome Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Edge: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Firefox: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Firefox for Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Opera: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Opera Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Safari: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Safari on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Samsung Internet: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.
api.HTMLElement.showPopover.options_source_parameter.implicit_anchor_reference 📋	Chrome	2/4/2025	Firefox	1/13/2026	343
api.HTMLElement.spellcheck 📋	Firefox	10/24/2006	Safari	7/20/2011	1730
api.HTMLElement.style 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.tabIndex 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Edge: Returns incorrect value for elements without an explicit tabindex attribute. See issue 4365703 for details.Internet Explorer: Returns incorrect value for elements without an explicit tabindex attribute. See issue 4365703 for details.
api.HTMLElement.title 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLElement.togglePopover 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLElement.togglePopover.force_parameter 📋	Chrome	8/15/2023	Firefox	7/22/2025	707
api.HTMLElement.togglePopover.options_force_parameter 📋	Chrome	10/15/2024	Firefox	7/22/2025	280
api.HTMLElement.togglePopover.options_source_parameter 📋	Chrome	5/27/2025	Firefox	10/14/2025	140	Chrome: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Chrome Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Edge: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Firefox: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Firefox for Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Opera: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Opera Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Safari: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Safari on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Samsung Internet: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.
api.HTMLElement.togglePopover.options_source_parameter.implicit_anchor_reference 📋	Chrome	2/4/2025	Firefox	1/13/2026	343
api.HTMLElement.togglePopover.returns_boolean	Chrome	8/15/2023	Firefox	4/16/2024	245
api.HTMLElement.toggle_event 📋	Chrome	7/16/2014	Safari	3/27/2017	985
api.HTMLElement.toggle_event.details_elements 📋	Chrome	7/16/2014	Safari	3/27/2017	985
api.HTMLElement.toggle_event.dialog_elements 📋	Firefox	11/26/2024	Safari	9/15/2025	293
api.HTMLElement.toggle_event.popover_elements 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLElement.translate 📋	Chrome	5/15/2012	Firefox	3/14/2023	3955
api.HTMLEmbedElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: Starting with Chrome 58, this interface can no longer be called as a function.Chrome Android: Starting with Chrome Android 58, this interface can no longer be called as a function.Quest Browser: Starting with Quest Browser 5.0, this interface can no longer be called as a function.Opera: Starting with Opera 45, this interface can no longer be called as a function.Opera Android: Starting with Opera 45, this interface can no longer be called as a function.Samsung Internet: Starting with Samsung Internet 7.0, this interface can no longer be called as a function.WebView Android: Starting with WebView Android 58, this interface can no longer be called as a function.
api.HTMLEmbedElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLEmbedElement.getSVGDocument 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.HTMLEmbedElement.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLEmbedElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLEmbedElement.src 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLEmbedElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLEmbedElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFieldSetElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFieldSetElement.checkValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLFieldSetElement.disabled 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.HTMLFieldSetElement.elements 📋	Firefox	3/22/2011	Safari	10/22/2013	945
api.HTMLFieldSetElement.elements.type_HTMLCollection	Firefox	3/22/2011	Safari	9/19/2019	3103
api.HTMLFieldSetElement.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFieldSetElement.name 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.HTMLFieldSetElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLFieldSetElement.setCustomValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLFieldSetElement.type 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.HTMLFieldSetElement.validationMessage 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
api.HTMLFieldSetElement.validity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLFieldSetElement.willValidate 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.HTMLFontElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFontElement.color 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFontElement.face 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFontElement.size 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormControlsCollection 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormControlsCollection.namedItem 📋	Safari	10/26/2007	Firefox	10/14/2014	2545	Firefox: Returned a `NodeList` instead of a `RadioNodeList`.Firefox for Android: Returned a `NodeList` instead of a `RadioNodeList`.
api.HTMLFormElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.acceptCharset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.action 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.autocomplete 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.HTMLFormElement.checkValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLFormElement.elements 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.encoding 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.enctype 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.formdata_event 📋	Chrome	9/10/2019	Safari	9/20/2021	741
api.HTMLFormElement.length 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.method 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.noValidate 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLFormElement.rel 📋	Safari	3/14/2022	Firefox	3/14/2023	365
api.HTMLFormElement.relList 📋	Safari	3/14/2022	Firefox	3/14/2023	365
api.HTMLFormElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLFormElement.requestSubmit 📋	Chrome	7/30/2019	Safari	9/12/2022	1140
api.HTMLFormElement.reset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.reset_event 📋	Safari	10/26/2007	Firefox	8/16/2011	1390
api.HTMLFormElement.submit 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.submit_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFormElement.target 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.contentDocument 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.contentWindow 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.frameBorder 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.longDesc 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.marginHeight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.marginWidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.noResize 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.scrolling 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameElement.src 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameSetElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameSetElement.cols 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLFrameSetElement.rows 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLHRElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLHRElement.align 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLHRElement.color 📋	Firefox	11/9/2004	Safari	3/27/2017	4521
api.HTMLHRElement.noShade 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLHRElement.size 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLHRElement.width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLHeadElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLHeadingElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLHeadingElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLHtmlElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLHtmlElement.version 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLIFrameElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.allow 📋	Chrome	7/25/2017	Firefox	3/10/2020	959
api.HTMLIFrameElement.allowFullscreen 📋	Firefox	6/25/2013	Safari	3/27/2017	1371	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.
api.HTMLIFrameElement.contentDocument 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.contentWindow 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.frameBorder 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.getSVGDocument 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.HTMLIFrameElement.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.loading 📋	Chrome	9/10/2019	Firefox	12/19/2023	1561
api.HTMLIFrameElement.longDesc 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.marginHeight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.marginWidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.referrerPolicy 📋	Chrome	7/20/2016	Safari	9/16/2020	1519
api.HTMLIFrameElement.sandbox 📋	Chrome	5/25/2010	Firefox	11/20/2012	910	Chrome: Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Chrome Android: Before Chrome Android 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Firefox: Previously, the type of `sandbox` was a `DOMString` instead of a `DOMSettableTokenList`. This has been fixed with Firefox 29. Other browsers may still implement the property as `DOMString` since it was a late change in the specification.Firefox for Android: Previously, the type of `sandbox` was a `DOMString` instead of a `DOMSettableTokenList`. This has been fixed with Firefox for Android 29. Other browsers may still implement the property as `DOMString` since it was a late change in the specification.Quest Browser: Before Quest Browser 5.0, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Opera: Before Opera 37, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Opera Android: Before Opera Android 37, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Samsung Internet: Before Samsung Internet 5.0, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.WebView Android: Before WebView Android 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.
api.HTMLIFrameElement.scrolling 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.src 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLIFrameElement.srcdoc 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.HTMLIFrameElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLImageElement.Image 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLImageElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.alt 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.border 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.complete 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Internet Explorer: IE reports `false` for broken images.
api.HTMLImageElement.crossOrigin 📋	Chrome	8/2/2011	Safari	7/25/2012	358
api.HTMLImageElement.currentSrc 📋	Chrome	10/7/2014	Safari	3/21/2016	531
api.HTMLImageElement.decode 📋	Chrome	1/23/2018	Firefox	7/9/2019	532
api.HTMLImageElement.decoding 📋	Chrome	3/6/2018	Firefox	10/23/2018	231
api.HTMLImageElement.fetchPriority 📋	Chrome	5/24/2022	Firefox	10/29/2024	889
api.HTMLImageElement.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.hspace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.isMap 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.loading 📋	Chrome	9/10/2019	Safari	3/14/2022	916
api.HTMLImageElement.longDesc 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.lowsrc 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.naturalHeight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.naturalWidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.referrerPolicy 📋	Chrome	7/20/2016	Safari	9/16/2020	1519
api.HTMLImageElement.sizes 📋	Chrome	10/7/2014	Safari	3/21/2016	531
api.HTMLImageElement.src 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.srcset 📋	Chrome	4/8/2014	Firefox	5/12/2015	399
api.HTMLImageElement.useMap 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.vspace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLImageElement.x 📋	Safari	10/26/2007	Firefox	7/17/2012	1726
api.HTMLImageElement.y 📋	Safari	10/26/2007	Firefox	7/17/2012	1726
api.HTMLInputElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.accept 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.align 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.alt 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.autocomplete 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.HTMLInputElement.cancel_event 📋	Firefox	8/10/2021	Chrome	5/2/2023	630
api.HTMLInputElement.checkValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLInputElement.checked 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.defaultChecked 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.defaultValue 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.dirName 📋	Chrome	2/8/2012	Firefox	8/1/2023	4192
api.HTMLInputElement.disabled 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.files 📋	Firefox	6/17/2008	Safari	6/8/2009	356	Internet Explorer: This property is read-only.
api.HTMLInputElement.form 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.formAction 📋	Safari	6/7/2010	Firefox	3/22/2011	288
api.HTMLInputElement.formEnctype 📋	Safari	6/7/2010	Firefox	3/22/2011	288
api.HTMLInputElement.formMethod 📋	Safari	6/7/2010	Firefox	3/22/2011	288
api.HTMLInputElement.formNoValidate 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLInputElement.formTarget 📋	Safari	6/7/2010	Firefox	3/22/2011	288
api.HTMLInputElement.height 📋	Chrome	7/31/2012	Safari	10/22/2013	448
api.HTMLInputElement.indeterminate 📋	Safari	10/26/2007	Firefox	1/21/2010	818
api.HTMLInputElement.invalid_event 📋	Safari	6/7/2010	Firefox	3/22/2011	288
api.HTMLInputElement.labels 📋	Safari	6/7/2010	Firefox	9/28/2017	2670
api.HTMLInputElement.list 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
api.HTMLInputElement.max 📋	Chrome	1/25/2010	Firefox	10/9/2012	988
api.HTMLInputElement.maxLength 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.min 📋	Chrome	1/25/2010	Firefox	10/9/2012	988
api.HTMLInputElement.minLength 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLInputElement.multiple 📋	Chrome	5/21/2009	Firefox	1/21/2010	245
api.HTMLInputElement.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.pattern 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLInputElement.placeholder 📋	Safari	6/8/2009	Firefox	3/22/2011	652
api.HTMLInputElement.popoverTargetAction 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLInputElement.popoverTargetElement 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
api.HTMLInputElement.popoverTargetElement.implicit_anchor_reference 📋	Chrome	2/4/2025	Firefox	1/13/2026	343
api.HTMLInputElement.readOnly 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLInputElement.required 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLInputElement.select 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.select_event 📋	Safari	6/23/2003	Firefox	8/16/2011	2976
api.HTMLInputElement.selectionDirection 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.HTMLInputElement.selectionEnd 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLInputElement.selectionStart 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLInputElement.selectionchange_event 📋	Firefox	9/7/2021	Safari	9/16/2024	1105	Chrome: Before Chrome 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<input>` elements.Chrome Android: Before Chrome Android 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<input>` elements.Edge: Before Edge 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<input>` elements.Opera: Before Opera 113, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<input>` elements.Opera Android: Before Opera Android 84, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<input>` elements.Safari: Before Safari 18, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 271033 for firing the event on `<input>` elements.Safari on iOS: Before Safari on iOS 18, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 271033 for firing the event on `<input>` elements.Samsung Internet: Before Samsung Internet 28.0, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<input>` elements.WebView Android: Before WebView Android 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<input>` elements.WebView on iOS: Before WebView on iOS 18, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 271033 for firing the event on `<input>` elements.
api.HTMLInputElement.setCustomValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLInputElement.setRangeText 📋	Chrome	1/10/2013	Firefox	2/4/2014	390
api.HTMLInputElement.setSelectionRange 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLInputElement.showPicker 📋	Chrome	3/1/2022	Safari	9/12/2022	195
api.HTMLInputElement.showPicker.color_input	Chrome	3/1/2022	Safari	9/12/2022	195
api.HTMLInputElement.showPicker.date_input	Chrome	3/1/2022	Safari	3/5/2024	735
api.HTMLInputElement.showPicker.datetime_local_input	Chrome	3/1/2022	Safari	3/5/2024	735
api.HTMLInputElement.showPicker.file_input	Chrome	3/1/2022	Safari	9/12/2022	195
api.HTMLInputElement.size 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.src 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.step 📋	Chrome	5/25/2010	Firefox	10/9/2012	868
api.HTMLInputElement.stepDown 📋	Chrome	5/25/2010	Firefox	10/9/2012	868	Firefox: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.Firefox for Android: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.
api.HTMLInputElement.stepUp 📋	Chrome	5/25/2010	Firefox	10/9/2012	868	Firefox: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.Firefox for Android: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.
api.HTMLInputElement.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.useMap 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.validationMessage 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
api.HTMLInputElement.validity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLInputElement.value 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLInputElement.valueAsDate 📋	Chrome	5/25/2010	Firefox	11/14/2017	2730
api.HTMLInputElement.valueAsNumber 📋	Chrome	5/25/2010	Firefox	10/9/2012	868
api.HTMLInputElement.webkitEntries 📋	Chrome	9/25/2012	Safari	4/12/2018	2025
api.HTMLInputElement.webkitdirectory 📋	Chrome	10/19/2010	Safari	4/12/2018	2732	Chrome Android: In Chrome for Android 131, if a user selects a directory, the browser crashes (see bug 376834374).Chrome Android: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.Firefox for Android: `File` entries returned for a selected directory have an empty string for `webkitRelativePath` (bug 1973726).Quest Browser: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.Opera Android: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.Safari on iOS: The property can be set, but has no effect (see bug 271705).Samsung Internet: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.WebView Android: In Chrome for Android 131, if a user selects a directory, the browser crashes (see bug 376834374).WebView Android: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.WebView on iOS: The property can be set, but has no effect (see bug 271705).
api.HTMLInputElement.width 📋	Chrome	7/31/2012	Safari	10/22/2013	448
api.HTMLInputElement.willValidate 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.HTMLLIElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 10, Gecko incorrectly reflected negative value attributes to 0.Firefox for Android: Before Firefox for Android 10, Gecko incorrectly reflected negative value attributes to 0.
api.HTMLLIElement.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLIElement.value 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLabelElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLLabelElement.control 📋	Chrome	9/2/2010	Safari	7/20/2011	321
api.HTMLLabelElement.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLLabelElement.htmlFor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLLegendElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLegendElement.align 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLegendElement.form 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.as 📋	Chrome	4/13/2016	Firefox	9/28/2017	533
api.HTMLLinkElement.charset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.crossOrigin 📋	Firefox	1/8/2013	Safari	9/20/2016	1351
api.HTMLLinkElement.disabled 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Chrome Android: In Chrome Android and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Edge: Since Edge 79, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Quest Browser: In Quest Browser and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Opera: In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Opera Android: In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Samsung Internet: In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.WebView Android: In WebView Android and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.
api.HTMLLinkElement.fetchPriority 📋	Chrome	5/24/2022	Firefox	10/29/2024	889
api.HTMLLinkElement.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.hreflang 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.imageSizes 📋	Chrome	3/12/2019	Safari	12/11/2023	1735
api.HTMLLinkElement.imageSrcset 📋	Chrome	3/12/2019	Safari	12/11/2023	1735
api.HTMLLinkElement.integrity 📋	Chrome	9/1/2015	Safari	4/12/2018	954
api.HTMLLinkElement.media 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.referrerPolicy 📋	Firefox	11/15/2016	Safari	4/26/2021	1623
api.HTMLLinkElement.rel 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.relList 📋	Firefox	6/10/2014	Chrome	4/13/2016	673
api.HTMLLinkElement.rev 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.sheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.sizes 📋	Chrome	10/25/2011	Firefox	7/22/2014	1001	Chrome: Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Chrome Android: Before Chrome Android 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Quest Browser: Before Quest Browser 5.0, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Opera: Before Opera 37, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Opera Android: Before Opera Android 37, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Samsung Internet: Before Samsung Internet 5.0, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.WebView Android: Before WebView 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.
api.HTMLLinkElement.target 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLLinkElement.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLMapElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLMapElement.areas 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLMapElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLMarqueeElement 📋	Safari	2/2/2004	Firefox	1/29/2019	5475	Firefox: Before Firefox 65, `<marquee>` implemented the `HTMLDivElement` interface.Firefox for Android: Before Firefox for Android 65, `<marquee>` implemented the `HTMLDivElement` interface.
api.HTMLMarqueeElement.behavior 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.bgColor 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.direction 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.height 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.hspace 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.loop 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.scrollAmount 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.scrollDelay 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.start 📋	Safari	2/2/2004	Firefox	1/29/2019	5475
api.HTMLMarqueeElement.stop 📋	Safari	2/2/2004	Firefox	1/29/2019	5475
api.HTMLMarqueeElement.trueSpeed 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.vspace 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMarqueeElement.width 📋	Chrome	3/8/2011	Firefox	1/29/2019	2884
api.HTMLMediaElement 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.abort_event 📋	Safari	3/18/2008	Firefox	12/20/2011	1372
api.HTMLMediaElement.addTextTrack 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLMediaElement.audioTracks 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.HTMLMediaElement.autoplay 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.buffered 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
api.HTMLMediaElement.canPlayType 📋	Safari	6/8/2009	Chrome	9/15/2009	99	Chrome: `codecs` string can contain any subset of optional parameters (should be all or none).Chrome: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Chrome Android: `codecs` string can contain any subset of optional parameters (should be all or none).Chrome Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Edge: `codecs` string can contain any subset of optional parameters (should be all or none).Edge: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Firefox: Before Firefox 28, `canPlayType()` returned `probably` when asked about WebM audio or video files without the `codecs` parameter. Since multiple codecs are supported, this is not enough information to determine if a file can be played, so `maybe` is now correctly returned.Firefox: Before Firefox 101, `canPlayType()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`).Firefox for Android: Before Firefox for Android 28, `canPlayType()` returned `probably` when asked about WebM audio or video files without the `codecs` parameter. Since multiple codecs are supported, this is not enough information to determine if a file can be played, so `maybe` is now correctly returned.Firefox for Android: Before Firefox for Android 101, `canPlayType()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`).Quest Browser: `codecs` string can contain any subset of optional parameters (should be all or none).Quest Browser: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Opera: `codecs` string can contain any subset of optional parameters (should be all or none).Opera: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Opera Android: `codecs` string can contain any subset of optional parameters (should be all or none).Opera Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Samsung Internet: `codecs` string can contain any subset of optional parameters (should be all or none).Samsung Internet: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).WebView Android: `codecs` string can contain any subset of optional parameters (should be all or none).WebView Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).
api.HTMLMediaElement.canplay_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.canplaythrough_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.controls 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.crossOrigin 📋	Firefox	6/25/2013	Safari	9/20/2016	1183
api.HTMLMediaElement.currentSrc 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.currentTime 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.defaultMuted 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.HTMLMediaElement.defaultPlaybackRate 📋	Safari	3/18/2008	Firefox	4/2/2013	1841
api.HTMLMediaElement.duration 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.durationchange_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.emptied_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.encrypted_event 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.HTMLMediaElement.ended 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.ended_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.error 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.error_event 📋	Safari	3/18/2008	Firefox	8/16/2011	1246
api.HTMLMediaElement.load 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.loadeddata_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.loadedmetadata_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.loadstart_event 📋	Safari	6/8/2009	Firefox	8/16/2011	799
api.HTMLMediaElement.loop 📋	Safari	6/8/2009	Firefox	3/13/2012	1009
api.HTMLMediaElement.mediaKeys 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.HTMLMediaElement.muted 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.networkState 📋	Safari	3/18/2008	Chrome	9/15/2009	546	Firefox: The `NETWORK_LOADED` state was removed to align with the HTML spec in Firefox 4.
api.HTMLMediaElement.pause 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.pause_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.paused 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.play 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.play.returns_promise	Chrome	4/13/2016	Firefox	4/19/2017	371
api.HTMLMediaElement.play_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.playbackRate 📋	Safari	3/18/2008	Firefox	4/2/2013	1841	Chrome: Setting the `playbackRate` to a negative value will throw an error.Chrome Android: Setting the `playbackRate` to a negative value will throw an error.Edge: Setting the `playbackRate` to a negative value will throw an error.Firefox: Setting the `playbackRate` to a negative value will throw an error.Firefox for Android: Setting the `playbackRate` to a negative value will throw an error.Quest Browser: Setting the `playbackRate` to a negative value will throw an error.Opera: Setting the `playbackRate` to a negative value will throw an error.Opera Android: Setting the `playbackRate` to a negative value will throw an error.Samsung Internet: Setting the `playbackRate` to a negative value will throw an error.WebView Android: Setting the `playbackRate` to a negative value will throw an error.
api.HTMLMediaElement.played 📋	Safari	3/18/2008	Firefox	8/28/2012	1624
api.HTMLMediaElement.playing_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.preload 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
api.HTMLMediaElement.preservesPitch 📋	Chrome	10/20/2020	Safari	12/11/2023	1147
api.HTMLMediaElement.progress_event 📋	Safari	3/18/2008	Firefox	8/16/2011	1246
api.HTMLMediaElement.ratechange_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.readyState 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.seekable 📋	Safari	3/18/2008	Firefox	11/8/2011	1330
api.HTMLMediaElement.seeked_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.seeking 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.seeking_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.setMediaKeys 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.HTMLMediaElement.setSinkId 📋	Chrome	3/2/2016	Safari	3/31/2025	3316	Chrome Android: Not available due to a limitation in Android, see bug 41276355.Firefox for Android: Not available due to a limitation in Android, see bug 1473346.Quest Browser: Not available due to a limitation in Android, see bug 41276355.Opera Android: Not available due to a limitation in Android, see bug 41276355.Samsung Internet: Not available due to a limitation in Android, see bug 41276355.WebView Android: Not available due to a limitation in Android, see bug 41276355.
api.HTMLMediaElement.sinkId 📋	Chrome	3/2/2016	Safari	3/31/2025	3316	Chrome Android: Not available due to a limitation in Android, see bug 41276355.Firefox for Android: Not available due to a limitation in Android, see bug 1473346.Quest Browser: Not available due to a limitation in Android, see bug 41276355.Opera Android: Not available due to a limitation in Android, see bug 41276355.Samsung Internet: Not available due to a limitation in Android, see bug 41276355.WebView Android: Not available due to a limitation in Android, see bug 41276355.
api.HTMLMediaElement.src 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.srcObject 📋	Firefox	11/3/2015	Chrome	11/29/2022	2583	Chrome: Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see bug 40591101).Chrome: Support added for `MediaStream` objects (see bug 41186131).Chrome Android: Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see bug 40591101).Chrome Android: Support added for `MediaStream` objects (see bug 41186131).Edge: Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see bug 40591101).Edge: Support added for `MediaStream` objects (see bug 41186131).Firefox: Only supports `MediaStream` objects (see bug 886194).Firefox for Android: Only supports `MediaStream` objects (see bug 886194).Quest Browser: Support added for `MediaStream` objects (see bug 41186131).Opera: Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see bug 40591101).Opera: Support added for `MediaStream` objects (see bug 41186131).Opera Android: Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see bug 40591101).Opera Android: Support added for `MediaStream` objects (see bug 41186131).Samsung Internet: Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see bug 40591101).Samsung Internet: Support added for `MediaStream` objects (see bug 41186131).WebView Android: Support added for `MediaSourceHandle` objects transferred from dedicated workers where they were obtained from `MediaSource.handle` (see bug 40591101).WebView Android: Support added for `MediaStream` objects (see bug 41186131).
api.HTMLMediaElement.stalled_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.suspend_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.textTracks 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLMediaElement.timeupdate_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLMediaElement.videoTracks 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.HTMLMediaElement.volume 📋	Safari	3/18/2008	Chrome	9/15/2009	546	Safari on iOS: `volume` returns a value and is writable; however, the value is always 1, and setting a value has no effect on the volume of the media object.WebView on iOS: `volume` returns a value and is writable; however, the value is always 1, and setting a value has no effect on the volume of the media object.
api.HTMLMediaElement.volumechange_event 📋	Safari	3/18/2008	Firefox	8/16/2011	1246
api.HTMLMediaElement.waiting_event 📋	Safari	3/18/2008	Firefox	8/16/2011	1246
api.HTMLMediaElement.waitingforkey_event 📋	Chrome	12/1/2016	Firefox	11/26/2024	2917	Firefox: The `onwaitingforkey` event handler property is not supported.Firefox for Android: The `onwaitingforkey` event handler property is not supported.
api.HTMLMenuElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLMenuElement.compact 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLMetaElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLMetaElement.content 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLMetaElement.httpEquiv 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLMetaElement.media 📋	Chrome	8/31/2021	Firefox	10/18/2022	413
api.HTMLMetaElement.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLMetaElement.scheme 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLMeterElement 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
api.HTMLMeterElement.high 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
api.HTMLMeterElement.labels 📋	Chrome	9/2/2010	Firefox	9/28/2017	2583
api.HTMLMeterElement.low 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
api.HTMLMeterElement.max 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
api.HTMLMeterElement.min 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
api.HTMLMeterElement.optimum 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
api.HTMLMeterElement.value 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
api.HTMLModElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLModElement.cite 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLModElement.dateTime 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOListElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOListElement.compact 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOListElement.reversed 📋	Chrome	3/28/2012	Firefox	1/8/2013	286
api.HTMLOListElement.start 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOListElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.archive 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.border 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.checkValidity 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.HTMLObjectElement.code 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.codeBase 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.codeType 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.contentDocument 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.contentWindow 📋	Firefox	6/25/2013	Safari	9/19/2019	2277
api.HTMLObjectElement.data 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.declare 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.getSVGDocument 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.HTMLObjectElement.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.hspace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLObjectElement.setCustomValidity 📋	Chrome	3/8/2011	Safari	7/20/2011	134	Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLObjectElement.standby 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.useMap 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.validationMessage 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.HTMLObjectElement.validity 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.HTMLObjectElement.vspace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLObjectElement.willValidate 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLOptGroupElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptGroupElement.disabled 📋	Firefox	11/9/2004	Safari	10/22/2013	3269	Safari: The property can be set, but has no effect (see bug 227042).Safari on iOS: The property can be set, but has no effect (see bug 227042).WebView on iOS: The property can be set, but has no effect (see bug 227042).
api.HTMLOptGroupElement.label 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionElement 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.HTMLOptionElement.Option 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Internet Explorer: Before Internet Explorer 9, the `outerHTML` of elements lose their text when constructing with `new Option()`.
api.HTMLOptionElement.defaultSelected 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionElement.disabled 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionElement.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionElement.index 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionElement.label 📋	Safari	10/26/2007	Firefox	9/27/2011	1432	Firefox: Before Firefox 7 the `label` property incorrectly returned an empty string if not defined instead of returning the element's text content.Firefox for Android: Before Firefox for Android 7 the `label` property incorrectly returned an empty string if not defined instead of returning the element's text content.
api.HTMLOptionElement.selected 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionElement.text 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionElement.value 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionsCollection 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionsCollection.add 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionsCollection.length 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOptionsCollection.remove 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
api.HTMLOptionsCollection.selectedIndex 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLOutputElement 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.checkValidity 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.defaultValue 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.form 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.htmlFor 📋	Chrome	2/3/2011	Safari	7/20/2011	167	Chrome: Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Chrome Android: Before Chrome Android 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Quest Browser: Before Quest Browser 5.0, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Opera: Before Opera 37, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Opera Android: Before Opera Android 37, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.Samsung Internet: Before Samsung Internet 5.0, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.WebView Android: Before Chrome 50, this property returned the deprecated child `DOMSettableTokenList` instead of `DOMTokenList`.
api.HTMLOutputElement.labels 📋	Chrome	2/3/2011	Firefox	9/28/2017	2429
api.HTMLOutputElement.name 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLOutputElement.setCustomValidity 📋	Chrome	2/3/2011	Safari	7/20/2011	167	Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLOutputElement.type 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.validationMessage 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.validity 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.value 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLOutputElement.willValidate 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.HTMLParagraphElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLParagraphElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLParamElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLParamElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLParamElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLParamElement.value 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLParamElement.valueType 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLPictureElement 📋	Chrome	10/7/2014	Safari	3/21/2016	531
api.HTMLPreElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLPreElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLProgressElement 📋	Chrome	9/2/2010	Safari	7/25/2012	692
api.HTMLProgressElement.labels 📋	Chrome	9/2/2010	Firefox	9/28/2017	2583
api.HTMLProgressElement.max 📋	Chrome	9/2/2010	Safari	7/25/2012	692
api.HTMLProgressElement.position 📋	Chrome	9/2/2010	Safari	7/25/2012	692
api.HTMLProgressElement.value 📋	Chrome	9/2/2010	Safari	7/25/2012	692
api.HTMLQuoteElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLQuoteElement.cite 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement.async 📋	Firefox	1/21/2010	Safari	7/20/2011	545
api.HTMLScriptElement.charset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement.crossOrigin 📋	Chrome	5/15/2012	Safari	7/25/2012	71
api.HTMLScriptElement.defer 📋	Safari	10/26/2007	Firefox	6/30/2009	613	Internet Explorer: Before Internet Explorer 10, it implemented `defer` by a proprietary specification. Since version 10 it conforms to the W3C specification.
api.HTMLScriptElement.event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement.fetchPriority 📋	Chrome	5/24/2022	Firefox	10/29/2024	889
api.HTMLScriptElement.htmlFor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement.innerText 📋	Safari	10/26/2007	Firefox	3/8/2016	3056
api.HTMLScriptElement.integrity 📋	Chrome	9/1/2015	Safari	4/12/2018	954
api.HTMLScriptElement.noModule 📋	Chrome	9/5/2017	Firefox	5/9/2018	246
api.HTMLScriptElement.referrerPolicy 📋	Chrome	10/16/2018	Safari	9/16/2020	701
api.HTMLScriptElement.src 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement.supports_static 📋	Firefox	11/2/2021	Safari	9/12/2022	314
api.HTMLScriptElement.text 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement.textContent 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLScriptElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: You should watch for change events on `<select>` instead of watching `<option>` elements for events. See bug 1090602 and Multiprocess Firefox Web content compatibility for details.
api.HTMLSelectElement.add 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.add.index_before_parameter	Firefox	11/8/2011	Safari	9/30/2015	1422
api.HTMLSelectElement.autocomplete 📋	Safari	3/21/2016	Chrome	4/17/2018	757
api.HTMLSelectElement.checkValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLSelectElement.disabled 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.item 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.labels 📋	Chrome	9/2/2010	Firefox	9/28/2017	2583
api.HTMLSelectElement.length 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.multiple 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.namedItem 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Edge: `namedItem` does not appear to take the `name` attribute into account (only the `id` attribute) on Internet Explorer and Edge. There is a bug report to Microsoft about this.Internet Explorer: `namedItem` does not appear to take the `name` attribute into account (only the `id` attribute) on Internet Explorer and Edge. There is a bug report to Microsoft about this.
api.HTMLSelectElement.options 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.remove 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLSelectElement.required 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.HTMLSelectElement.selectedIndex 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.selectedOptions 📋	Chrome	5/15/2012	Firefox	12/10/2013	574
api.HTMLSelectElement.setCustomValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLSelectElement.size 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.validationMessage 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
api.HTMLSelectElement.validity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLSelectElement.value 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLSelectElement.willValidate 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.HTMLSlotElement 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.HTMLSlotElement.assign 📋	Chrome	7/20/2021	Safari	3/27/2023	615	Chrome: Before Chrome 95, the method accepted any `Node` instead of just `Element` and `Text`.Chrome: Accepted `sequence<Node>` instead of `(Element or Text)...`.Chrome Android: Before Chrome Android 95, the method accepted any `Node` instead of just `Element` and `Text`.Chrome Android: Accepted `sequence<Node>` instead of `(Element or Text)...`.Edge: Before Edge 95, the method accepted any `Node` instead of just `Element` and `Text`.Edge: Accepted `sequence<Node>` instead of `(Element or Text)...`.Quest Browser: Before Quest Browser 18.0, the method accepted any `Node` instead of just `Element` and `Text`.Quest Browser: Accepted `sequence<Node>` instead of `(Element or Text)...`.Opera: Before Opera 81, the method accepted any `Node` instead of just `Element` and `Text`.Opera: Accepted `sequence<Node>` instead of `(Element or Text)...`.Opera Android: Before Opera Android 67, the method accepted any `Node` instead of just `Element` and `Text`.Opera Android: Accepted `sequence<Node>` instead of `(Element or Text)...`.Samsung Internet: Before Samsung Internet 17.0, the method accepted any `Node` instead of just `Element` and `Text`.Samsung Internet: Accepted `sequence<Node>` instead of `(Element or Text)...`.WebView Android: Before WebView Android 95, the method accepted any `Node` instead of just `Element` and `Text`.WebView Android: Accepted `sequence<Node>` instead of `(Element or Text)...`.
api.HTMLSlotElement.assignedElements 📋	Chrome	3/6/2018	Safari	3/25/2019	384
api.HTMLSlotElement.assignedNodes 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.HTMLSlotElement.name 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.HTMLSlotElement.slotchange_event 📋	Chrome	8/31/2016	Firefox	10/23/2018	783	Safari: The `onslotchange` event handler property is not supported.Safari on iOS: The `onslotchange` event handler property is not supported.WebView on iOS: The `onslotchange` event handler property is not supported.
api.HTMLSourceElement 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLSourceElement.height 📋	Chrome	4/13/2021	Firefox	12/13/2022	609
api.HTMLSourceElement.media 📋	Safari	3/18/2008	Firefox	8/28/2012	1624
api.HTMLSourceElement.sizes 📋	Chrome	10/7/2014	Safari	3/27/2017	902	Safari: The `sizes` attribute is supported since Safari 9.1.Safari on iOS: The `sizes` attribute is supported since Safari on iOS 9.1.WebView on iOS: The `sizes` attribute is supported since WebView on iOS 9.1.
api.HTMLSourceElement.src 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLSourceElement.srcset 📋	Chrome	10/7/2014	Safari	3/27/2017	902	Safari: The `srcset` attribute is supported since Safari 9.1.Safari on iOS: The `srcset` attribute is supported since Safari on iOS 9.1.WebView on iOS: The `srcset` attribute is supported since WebView on iOS 9.1.
api.HTMLSourceElement.type 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLSourceElement.width 📋	Chrome	4/13/2021	Firefox	12/13/2022	609
api.HTMLSpanElement 📋	Firefox	11/9/2004	Safari	7/25/2012	2815
api.HTMLStyleElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLStyleElement.disabled 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLStyleElement.media 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLStyleElement.sheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLStyleElement.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTableCaptionElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCaptionElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.abbr 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.axis 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.bgColor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.cellIndex 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.ch 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.chOff 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.colSpan 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.headers 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.noWrap 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.rowSpan 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.scope 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.vAlign 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableCellElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableColElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableColElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableColElement.ch 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableColElement.chOff 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableColElement.span 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableColElement.vAlign 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableColElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.bgColor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.border 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.caption 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.cellPadding 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.cellSpacing 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.createCaption 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.createTBody 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.HTMLTableElement.createTFoot 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.createTHead 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.deleteCaption 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.deleteRow 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.deleteTFoot 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.deleteTHead 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.frame 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.insertRow 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Starting with Firefox 20, the `index` parameter has been made optional and defaults to -1 as per HTML specification.Firefox for Android: Starting with Firefox for Android 20, the `index` parameter has been made optional and defaults to -1 as per HTML specification.
api.HTMLTableElement.rows 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.rules 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.summary 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.tBodies 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.tFoot 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.tHead 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableElement.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.bgColor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.cells 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.ch 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.chOff 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.deleteCell 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.insertCell 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.insertCell.index_parameter_negative_one	Safari	10/26/2007	Firefox	4/2/2013	1985
api.HTMLTableRowElement.insertCell.index_parameter_optional	Safari	10/26/2007	Firefox	4/2/2013	1985
api.HTMLTableRowElement.rowIndex 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.sectionRowIndex 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableRowElement.vAlign 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement.ch 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement.chOff 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement.deleteRow 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement.insertRow 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement.rows 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTableSectionElement.vAlign 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTemplateElement 📋	Chrome	3/26/2013	Safari	10/16/2014	569
api.HTMLTemplateElement.content 📋	Chrome	3/26/2013	Safari	10/16/2014	569
api.HTMLTemplateElement.shadowRootClonable 📋	Chrome	4/16/2024	Safari	9/16/2024	153
api.HTMLTemplateElement.shadowRootDelegatesFocus 📋	Firefox	2/20/2024	Safari	9/16/2024	209
api.HTMLTemplateElement.shadowRootMode 📋	Chrome	3/7/2023	Firefox	2/20/2024	350
api.HTMLTemplateElement.shadowRootSerializable 📋	Chrome	5/14/2024	Safari	9/16/2024	125
api.HTMLTextAreaElement 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.autocomplete 📋	Safari	3/21/2016	Chrome	4/17/2018	757
api.HTMLTextAreaElement.checkValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLTextAreaElement.cols 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.defaultValue 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.dirName 📋	Chrome	2/8/2012	Firefox	8/1/2023	4192
api.HTMLTextAreaElement.disabled 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.form 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.labels 📋	Chrome	9/2/2010	Firefox	9/28/2017	2583
api.HTMLTextAreaElement.maxLength 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLTextAreaElement.minLength 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLTextAreaElement.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.placeholder 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLTextAreaElement.readOnly 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.reportValidity 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.HTMLTextAreaElement.required 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLTextAreaElement.rows 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.select 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.select_event 📋	Safari	6/23/2003	Firefox	8/16/2011	2976
api.HTMLTextAreaElement.selectionDirection 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.HTMLTextAreaElement.selectionEnd 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTextAreaElement.selectionStart 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTextAreaElement.selectionchange_event 📋	Firefox	9/7/2021	Safari	9/16/2024	1105	Chrome: Before Chrome 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<textarea>` elements.Chrome Android: Before Chrome Android 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<textarea>` elements.Edge: Before Edge 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<textarea>` elements.Opera: Before Opera 113, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<textarea>` elements.Opera Android: Before Opera Android 84, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<textarea>` elements.Safari: Before Safari 18, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 271033 for firing the event on `<textarea>` elements.Safari on iOS: Before Safari on iOS 18, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 271033 for firing the event on `<textarea>` elements.Samsung Internet: Before Samsung Internet 28.0, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<textarea>` elements.WebView Android: Before WebView Android 127, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 40840956 for firing the event on `<textarea>` elements.WebView on iOS: Before WebView on iOS 18, a `selectionchange` event was fired on `Document`, see `Document`'s `selectionchange` event. See bug 271033 for firing the event on `<textarea>` elements.
api.HTMLTextAreaElement.setCustomValidity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLTextAreaElement.setRangeText 📋	Chrome	1/10/2013	Firefox	2/4/2014	390
api.HTMLTextAreaElement.setSelectionRange 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTextAreaElement.textLength 📋	Firefox	11/9/2004	Safari	6/7/2010	2036
api.HTMLTextAreaElement.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.validationMessage 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
api.HTMLTextAreaElement.validity 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.HTMLTextAreaElement.value 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.HTMLTextAreaElement.willValidate 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.HTMLTextAreaElement.wrap 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.HTMLTimeElement 📋	Firefox	6/25/2013	Chrome	10/17/2017	1575
api.HTMLTimeElement.dateTime 📋	Firefox	6/25/2013	Chrome	10/17/2017	1575
api.HTMLTitleElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTitleElement.text 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLTrackElement 📋	Safari	7/25/2012	Firefox	7/22/2014	727	Firefox: Before Firefox 50, text tracks would only load if the `<track>` element is in a document.Firefox for Android: Before Firefox for Android 50, text tracks would only load if the `<track>` element is in a document.
api.HTMLTrackElement.cuechange_event 📋	Chrome	1/14/2014	Firefox	7/9/2019	2002	Chrome: The `oncuechange` event handler property is not supported.Chrome Android: The `oncuechange` event handler property is not supported.Opera: The `oncuechange` event handler property is not supported.Opera Android: The `oncuechange` event handler property is not supported.Safari: The `oncuechange` event handler property is not supported.Safari on iOS: The `oncuechange` event handler property is not supported.Samsung Internet: The `oncuechange` event handler property is not supported.WebView Android: The `oncuechange` event handler property is not supported.WebView on iOS: The `oncuechange` event handler property is not supported.
api.HTMLTrackElement.default 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLTrackElement.kind 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLTrackElement.label 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLTrackElement.readyState 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLTrackElement.src 📋	Safari	7/25/2012	Firefox	7/22/2014	727	Firefox: Before Firefox 50, setting the `src` property did not work properly.Firefox for Android: Before Firefox for Android 50, setting the `src` property did not work properly.
api.HTMLTrackElement.srclang 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLTrackElement.track 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.HTMLUListElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLUListElement.compact 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLUListElement.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.HTMLUnknownElement 📋	Firefox	11/9/2004	Safari	7/25/2012	2815
api.HTMLVideoElement 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLVideoElement.cancelVideoFrameCallback 📋	Chrome	5/19/2020	Firefox	10/29/2024	1624
api.HTMLVideoElement.disablePictureInPicture 📋	Chrome	9/4/2018	Firefox	1/23/2024	1967	Firefox: When this property is set to `true`, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox: This property is undefined, but still has an effect if set to a value.Firefox: When this property is set to `true`, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox for Android: When this property is set to `true`, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox for Android: This property is undefined, but still has an effect if set to a value.Firefox for Android: When this property is set to `true`, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.
api.HTMLVideoElement.getVideoPlaybackQuality 📋	Safari	10/16/2014	Chrome	2/4/2020	1937	Internet Explorer: Only works on Windows 8+.
api.HTMLVideoElement.height 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLVideoElement.poster 📋	Safari	3/18/2008	Firefox	1/21/2010	674
api.HTMLVideoElement.requestVideoFrameCallback 📋	Chrome	5/19/2020	Firefox	10/29/2024	1624
api.HTMLVideoElement.resize_event 📋	Safari	3/18/2008	Chrome	9/15/2009	546	Edge: The `onresize` event handler property is not supported.Internet Explorer: The `onresize` event handler property is not supported.
api.HTMLVideoElement.videoHeight 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLVideoElement.videoWidth 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HTMLVideoElement.width 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.HashChangeEvent 📋	Firefox	1/21/2010	Chrome	12/2/2010	315
api.HashChangeEvent.HashChangeEvent 📋	Chrome	12/13/2011	Safari	7/25/2012	225
api.HashChangeEvent.newURL 📋	Chrome	12/2/2010	Firefox	8/16/2011	257
api.HashChangeEvent.oldURL 📋	Chrome	12/2/2010	Firefox	8/16/2011	257
api.Headers 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.@@iterator	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.Headers 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.append 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.delete 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.entries	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.forEach	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.get 📋	Chrome	4/14/2015	Safari	3/27/2017	713	Chrome: Before version 57, `get()` returns only the first value for the specified header.Chrome Android: Before version 57, `get()` returns only the first value for the specified header.Firefox: Before version 52, `get()` returns only the first value for the specified header.Firefox for Android: Before version 52, `get()` returns only the first value for the specified header.Quest Browser: Before version 5.0, `get()` returns only the first value for the specified header.Opera: Before version 44, `get()` returns only the first value for the specified header.Opera Android: Before version 43, `get()` returns only the first value for the specified header.Samsung Internet: Before version 7.0, `get()` returns only the first value for the specified header.WebView Android: Before version 57, `get()` returns only the first value for the specified header.
api.Headers.getSetCookie 📋	Firefox	4/11/2023	Safari	9/18/2023	160
api.Headers.has 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.iterate_combined_duplicates	Chrome	3/9/2017	Firefox	11/14/2017	250
api.Headers.iterate_lexicographically	Chrome	3/9/2017	Firefox	11/14/2017	250
api.Headers.keys	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.set 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Headers.values	Chrome	4/14/2015	Safari	3/27/2017	713
api.Highlight 📋	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.@@iterator	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.Highlight 📋	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.add	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.clear	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.delete	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.entries	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.forEach	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.has	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.keys	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.priority 📋	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.size	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.type 📋	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.Highlight.values	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry 📋	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.@@iterator	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.clear	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.delete	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.entries	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.forEach	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.get	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.has	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.keys	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.set	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.size	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.HighlightRegistry.values	Chrome	9/2/2022	Firefox	6/24/2025	1026
api.History 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.History.back 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.History.forward 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.History.go 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.History.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.History.pushState 📋	Chrome	5/25/2010	Firefox	3/22/2011	301	Firefox: Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.Firefox for Android: Until Firefox for Android 5, the passed object is serialized using JSON. Starting in Firefox for Android 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.
api.History.replaceState 📋	Chrome	5/25/2010	Firefox	3/22/2011	301	Firefox: Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.Firefox for Android: Until Firefox for Android 5, the passed object is serialized using JSON. Starting in Firefox for Android 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.
api.History.scrollRestoration 📋	Chrome	10/13/2015	Safari	9/19/2017	707
api.History.state 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.IDBCursor 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBCursor.advance 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.continue 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.continuePrimaryKey 📋	Firefox	1/31/2012	Chrome	4/19/2017	1905
api.IDBCursor.delete 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.direction 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.key 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.key.binary_keys	Firefox	1/24/2017	Chrome	4/19/2017	85
api.IDBCursor.primaryKey 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.request 📋	Chrome	7/30/2019	Safari	9/20/2021	783
api.IDBCursor.source 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.update 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursor.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBCursorWithValue 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBCursorWithValue.value 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBCursorWithValue.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBDatabase 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBDatabase.abort_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989	Internet Explorer: Unknown limitations
api.IDBDatabase.close 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.close_event 📋	Chrome	10/1/2013	Safari	3/27/2017	1273
api.IDBDatabase.createObjectStore 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.deleteObjectStore 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.name 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.objectStoreNames 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.transaction 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.version 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.versionchange_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBDatabase.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBFactory 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBFactory.cmp 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBFactory.databases 📋	Chrome	1/29/2019	Firefox	5/14/2024	1932
api.IDBFactory.deleteDatabase 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBFactory.open 📋	Firefox	1/31/2012	Safari	9/20/2021	3520	Safari: In some releases of Safari 14, the first `indexedDB.open()` call hangs forever, see bug 226547.Safari on iOS: In some releases of Safari on iOS 14, the first `indexedDB.open()` call hangs forever, see bug 226547.WebView on iOS: In some releases of WebView on iOS 14, the first `indexedDB.open()` call hangs forever, see bug 226547.
api.IDBFactory.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBIndex 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBIndex.count 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.get 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.getAll 📋	Chrome	1/20/2016	Safari	3/27/2017	432
api.IDBIndex.getAllKeys 📋	Chrome	1/20/2016	Safari	3/27/2017	432
api.IDBIndex.getKey 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.keyPath 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.multiEntry 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.name 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.name.renaming_through_name_setter	Firefox	9/20/2016	Safari	3/27/2017	188
api.IDBIndex.objectStore 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.openCursor 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.openKeyCursor 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.unique 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBIndex.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBKeyRange 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBKeyRange.bound_static 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.includes 📋	Firefox	6/7/2016	Safari	3/27/2017	293
api.IDBKeyRange.lower 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.lowerBound_static 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.lowerOpen 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.only_static 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.upper 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.upperBound_static 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.upperOpen 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBKeyRange.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBObjectStore 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBObjectStore.add 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.autoIncrement 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.clear 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.count 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.createIndex 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.delete 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.deleteIndex 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.get 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.getAll 📋	Chrome	1/20/2016	Safari	3/27/2017	432
api.IDBObjectStore.getAllKeys 📋	Chrome	1/20/2016	Safari	3/27/2017	432
api.IDBObjectStore.getKey 📋	Chrome	1/20/2016	Safari	3/27/2017	432
api.IDBObjectStore.index 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.indexNames 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.keyPath 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.name 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.name.renaming_through_name_setter	Firefox	9/20/2016	Safari	3/27/2017	188
api.IDBObjectStore.openCursor 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.openKeyCursor 📋	Chrome	11/6/2012	Safari	3/27/2017	1602
api.IDBObjectStore.put 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.transaction 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBObjectStore.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBOpenDBRequest 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBOpenDBRequest.blocked_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBOpenDBRequest.upgradeneeded_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBOpenDBRequest.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBRequest 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBRequest.error 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBRequest.error.transient_unrecoverable_read_errors 📋	Firefox	7/17/2012	Chrome	1/14/2025	4564	Chrome: Returns a `NotReadableError` exception for unrecoverable read errors, and an `UnknownError` for transient read errors.Chrome: Returns a `NotFoundError` exception for unrecoverable read errors, and a `DataError` for transient read errors.Chrome Android: Returns a `NotReadableError` exception for unrecoverable read errors, and an `UnknownError` for transient read errors.Chrome Android: Returns a `NotFoundError` exception for unrecoverable read errors, and a `DataError` for transient read errors.Opera: Returns a `NotReadableError` exception for unrecoverable read errors, and an `UnknownError` for transient read errors.Opera: Returns a `NotFoundError` exception for unrecoverable read errors, and a `DataError` for transient read errors.Opera Android: Returns a `NotReadableError` exception for unrecoverable read errors, and an `UnknownError` for transient read errors.Opera Android: Returns a `NotFoundError` exception for unrecoverable read errors, and a `DataError` for transient read errors.Samsung Internet: Returns a `NotReadableError` exception for unrecoverable read errors, and an `UnknownError` for transient read errors.Samsung Internet: Returns a `NotFoundError` exception for unrecoverable read errors, and a `DataError` for transient read errors.WebView Android: Returns a `NotReadableError` exception for unrecoverable read errors, and an `UnknownError` for transient read errors.WebView Android: Returns a `NotFoundError` exception for unrecoverable read errors, and a `DataError` for transient read errors.
api.IDBRequest.error_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBRequest.readyState 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBRequest.result 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBRequest.source 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBRequest.success_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBRequest.transaction 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBRequest.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBTransaction 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBTransaction.abort 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.abort_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.commit 📋	Chrome	7/30/2019	Safari	9/20/2021	783
api.IDBTransaction.complete_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.db 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.durability 📋	Chrome	5/19/2020	Firefox	5/14/2024	1456
api.IDBTransaction.error 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.error_event 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.mode 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.objectStore 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBTransaction.objectStoreNames 📋	Firefox	1/31/2012	Safari	3/27/2017	1882
api.IDBTransaction.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IDBVersionChangeEvent 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.IDBVersionChangeEvent.IDBVersionChangeEvent 📋	Firefox	10/29/2013	Safari	9/20/2016	1057
api.IDBVersionChangeEvent.newVersion 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBVersionChangeEvent.oldVersion 📋	Firefox	1/31/2012	Safari	10/16/2014	989
api.IDBVersionChangeEvent.worker_support	Chrome	11/6/2012	Safari	9/20/2016	1414
api.IIRFilterNode 📋	Chrome	3/2/2016	Safari	4/26/2021	1881
api.IIRFilterNode.IIRFilterNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.IIRFilterNode.getFrequencyResponse 📋	Chrome	3/2/2016	Safari	4/26/2021	1881
api.ImageBitmap 📋	Firefox	11/3/2015	Safari	9/20/2021	2148
api.ImageBitmap.close 📋	Firefox	4/26/2016	Safari	9/20/2021	1973
api.ImageBitmap.height 📋	Firefox	11/3/2015	Safari	9/20/2021	2148
api.ImageBitmap.width 📋	Firefox	11/3/2015	Safari	9/20/2021	2148
api.ImageBitmapRenderingContext 📋	Firefox	4/26/2016	Chrome	4/17/2018	721
api.ImageBitmapRenderingContext.canvas 📋	Safari	4/12/2018	Firefox	2/8/2022	1398
api.ImageBitmapRenderingContext.transferFromImageBitmap 📋	Firefox	11/15/2016	Chrome	4/17/2018	518
api.ImageCapture 📋	Firefox	1/13/2015	Safari	3/31/2025	3730
api.ImageCapture.ImageCapture 📋	Firefox	1/13/2015	Safari	3/31/2025	3730
api.ImageCapture.takePhoto 📋	Firefox	1/13/2015	Safari	3/31/2025	3730	Chrome: `photoSettings` parameter not supported.Chrome Android: `photoSettings` parameter not supported.Opera: `photoSettings` parameter not supported.Opera Android: `photoSettings` parameter not supported.Samsung Internet: `photoSettings` parameter not supported.WebView Android: `photoSettings` parameter not supported.
api.ImageCapture.track 📋	Firefox	1/13/2015	Safari	3/31/2025	3730
api.ImageData 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ImageData.ImageData 📋	Firefox	4/29/2014	Safari	10/16/2014	170
api.ImageData.data 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ImageData.height 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ImageData.width 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ImageData.worker_support	Safari	10/22/2013	Chrome	7/16/2014	267
api.InputEvent 📋	Firefox	7/22/2014	Chrome	7/25/2017	1099
api.InputEvent.InputEvent 📋	Firefox	7/22/2014	Chrome	7/25/2017	1099
api.InputEvent.data 📋	Safari	3/27/2017	Firefox	5/21/2019	785
api.InputEvent.dataTransfer 📋	Safari	3/27/2017	Firefox	5/21/2019	785
api.InputEvent.getTargetRanges 📋	Safari	3/27/2017	Firefox	3/23/2021	1457
api.InputEvent.inputType 📋	Safari	3/27/2017	Firefox	3/19/2019	722
api.InputEvent.isComposing 📋	Firefox	7/22/2014	Safari	3/27/2023	3170
api.IntersectionObserver 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserver.IntersectionObserver 📋	Chrome	5/25/2016	Safari	3/25/2019	1034	Firefox: Before version 96, the constructor throws a `DOMException` if the `options.rootMargin` option is passed an empty string (see bug 1738791).
api.IntersectionObserver.IntersectionObserver.options_root_parameter_Document	Chrome	4/7/2020	Safari	9/16/2020	162
api.IntersectionObserver.disconnect 📋	Chrome	5/25/2016	Safari	3/25/2019	1034	Edge: Available since Windows Insider Preview Build 14986.
api.IntersectionObserver.observe 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserver.root 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserver.rootMargin 📋	Chrome	5/25/2016	Safari	3/25/2019	1034	Safari: `rootMargin` does not work with `<iframe>`s.Safari on iOS: `rootMargin` does not work with `<iframe>`s.WebView on iOS: `rootMargin` does not work with `<iframe>`s.
api.IntersectionObserver.scrollMargin	Chrome	12/5/2023	Safari	9/15/2025	650
api.IntersectionObserver.takeRecords 📋	Chrome	5/25/2016	Safari	3/25/2019	1034	Edge: Available since Windows Insider Preview Build 14986.
api.IntersectionObserver.thresholds 📋	Chrome	7/20/2016	Safari	3/25/2019	978
api.IntersectionObserver.unobserve 📋	Chrome	5/25/2016	Safari	3/25/2019	1034	Edge: Available since Windows Insider Preview Build 14986.
api.IntersectionObserverEntry 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserverEntry.boundingClientRect 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserverEntry.intersectionRatio 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserverEntry.intersectionRect 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserverEntry.isIntersecting 📋	Chrome	4/19/2017	Safari	3/25/2019	705
api.IntersectionObserverEntry.rootBounds 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserverEntry.target 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.IntersectionObserverEntry.time 📋	Chrome	5/25/2016	Safari	3/25/2019	1034
api.KeyboardEvent 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.KeyboardEvent.KeyboardEvent 📋	Chrome	3/26/2013	Firefox	7/22/2014	483
api.KeyboardEvent.altKey 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.KeyboardEvent.charCode 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.KeyboardEvent.code 📋	Firefox	5/12/2015	Safari	3/27/2017	685	Chrome Android: The value is always empty.Firefox for Android: The value is always empty.Quest Browser: The value is always empty.Opera Android: The value is always empty.Samsung Internet: The value is always empty.WebView Android: The value is always empty.
api.KeyboardEvent.ctrlKey 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.KeyboardEvent.getModifierState 📋	Firefox	8/28/2012	Safari	3/27/2017	1672
api.KeyboardEvent.getModifierState.key_parameter_alt	Firefox	8/28/2012	Safari	3/27/2017	1672
api.KeyboardEvent.getModifierState.key_parameter_altgraph	Firefox	8/28/2012	Safari	3/27/2017	1672
api.KeyboardEvent.getModifierState.key_parameter_capslock	Firefox	8/28/2012	Safari	3/27/2017	1672
api.KeyboardEvent.getModifierState.key_parameter_control	Firefox	8/28/2012	Safari	3/27/2017	1672
api.KeyboardEvent.getModifierState.key_parameter_meta	Firefox	8/28/2012	Safari	3/27/2017	1672
api.KeyboardEvent.getModifierState.key_parameter_shift	Firefox	8/28/2012	Safari	3/27/2017	1672
api.KeyboardEvent.initKeyboardEvent 📋	Safari	2/2/2004	Firefox	11/14/2017	5034
api.KeyboardEvent.isComposing 📋	Firefox	7/22/2014	Safari	3/27/2017	979
api.KeyboardEvent.key 📋	Firefox	8/6/2013	Safari	3/27/2017	1329	Chrome: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `key` property is `undefined`. See bug 41425904.Chrome Android: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `key` property is `undefined`. See bug 41425904.Internet Explorer: IE's implementation does not completely match the current spec because it is based on an older version of the spec.Quest Browser: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `key` property is `undefined`. See bug 41425904.Opera: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `key` property is `undefined`. See bug 41425904.Opera Android: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `key` property is `undefined`. See bug 41425904.Samsung Internet: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `key` property is `undefined`. See bug 41425904.WebView Android: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `key` property is `undefined`. See bug 41425904.
api.KeyboardEvent.key.dead_key	Firefox	3/31/2015	Safari	3/27/2017	727
api.KeyboardEvent.key.non_printable_keys	Firefox	8/6/2013	Safari	3/27/2017	1329	Internet Explorer: IE's implementation does not completely match the current spec because it is based on an older version of the spec.
api.KeyboardEvent.key.printable_key	Firefox	4/29/2014	Safari	3/27/2017	1063	Internet Explorer: IE's implementation does not completely match the current spec because it is based on an older version of the spec.
api.KeyboardEvent.keyCode 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Chrome: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `keyCode` property is `undefined`. See bug 41425904.Chrome Android: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `keyCode` property is `undefined`. See bug 41425904.Quest Browser: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `keyCode` property is `undefined`. See bug 41425904.Samsung Internet: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `keyCode` property is `undefined`. See bug 41425904.WebView Android: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `keyCode` property is `undefined`. See bug 41425904.
api.KeyboardEvent.location 📋	Firefox	8/28/2012	Safari	10/16/2014	779
api.KeyboardEvent.metaKey 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Since Firefox 48, the Windows key is no longer treated as a `meta` key.Firefox for Android: Since Firefox for Android 48, the Windows key is no longer treated as a `meta` key.
api.KeyboardEvent.repeat 📋	Firefox	3/18/2014	Chrome	5/27/2025	4088	Chrome: Before Chrome 139, on Linux under X11, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Chrome: On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Chrome Android: Before Chrome Android 139, on Linux under X11, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Chrome Android: On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Quest Browser: On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Opera: Before Opera 123, on Linux under X11, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Opera: On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Opera Android: Before Opera Android 91, on Linux under X11, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Opera Android: On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.Samsung Internet: On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.WebView Android: Before WebView Android 139, on Linux under X11, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.WebView Android: On Windows and Linux, if multiple keys are held down, a `keydown` event for the most recently pressed key will trigger with `repeat` incorrectly set to `false`. See bug 40940886.
api.KeyboardEvent.shiftKey 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.KeyframeEffect 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.KeyframeEffect.KeyframeEffect 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.KeyframeEffect.composite 📋	Chrome	7/27/2020	Safari	9/12/2022	777
api.KeyframeEffect.getKeyframes 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.KeyframeEffect.pseudoElement 📋	Firefox	4/7/2020	Safari	9/16/2020	162
api.KeyframeEffect.setKeyframes 📋	Firefox	10/23/2018	Chrome	7/27/2020	643
api.KeyframeEffect.target 📋	Firefox	10/23/2018	Safari	3/24/2020	518
api.LargestContentfulPaint 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.LargestContentfulPaint.element 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.LargestContentfulPaint.id 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.LargestContentfulPaint.loadTime 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.LargestContentfulPaint.paintTime 📋	Firefox	6/24/2025	Chrome	2/10/2026	231
api.LargestContentfulPaint.presentationTime 📋	Firefox	6/24/2025	Chrome	2/10/2026	231	Firefox: This property is exposed, but always returns `null`.Firefox for Android: This property is exposed, but always returns `null`.Safari: This property is exposed, but always returns `null`.Safari on iOS: This property is exposed, but always returns `null`.WebView on iOS: This property is exposed, but always returns `null`.
api.LargestContentfulPaint.renderTime 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.LargestContentfulPaint.renderTime.cross-origin	Chrome	2/4/2025	Safari	12/12/2025	311
api.LargestContentfulPaint.size 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.LargestContentfulPaint.toJSON 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.LargestContentfulPaint.url 📋	Chrome	9/10/2019	Safari	12/12/2025	2285
api.Location 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Location.ancestorOrigins 📋	Chrome	6/26/2012	Firefox	2/24/2026	4991	Deno: This value is always empty in Deno.
api.Location.assign 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Deno: This method exists but has no effect in Deno. A location can be assigned using the `--location` runtime flag.
api.Location.hash 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Location.host 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Location.hostname 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Location.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Location.origin 📋	Chrome	12/2/2010	Firefox	5/14/2013	894	Firefox: Before Firefox 49, results for URL using the blob scheme incorrectly returned null.Firefox for Android: Before Firefox for Android 49, results for URL using the blob scheme incorrectly returned null.Internet Explorer: Intranet sites are set to Compatibility View, which will emulate IE7 and omit `window.location.origin`.
api.Location.pathname 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 53, the `pathname` property returned wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return "/x?a=true&b=false" rather than "/x".Firefox for Android: Before Firefox for Android 53, the `pathname` property returned wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `pathname` would return "/x?a=true&b=false" rather than "/x".Internet Explorer: Internet Explorer does not provide the leading slash character in the `pathname` (`docs/Web/API/Location` instead of `/docs/Web/API/Location`).
api.Location.port 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Location.protocol 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Location.reload 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Deno: This method exists but has no effect in Deno.Edge: Before Edge 79, if a page added to Trusted Sites contains a cross-origin iframe, then calling `reload()` from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe).Internet Explorer: If a page added to Trusted Sites contains a cross-origin iframe, then calling `reload()` from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe).
api.Location.replace 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Deno: This method exists but has no effect in Deno. A location can be assigned using the `--location` runtime flag.
api.Location.search 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 53, the `search` property returned wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `search` would return "", rather than "?a=true&b=false".Firefox for Android: Before Firefox for Android 53, the `search` property returned wrong parts of the URL. For example, for a URL of `https://z.com/x?a=true&b=false`, `search` would return "", rather than "?a=true&b=false".
api.Location.toString 📋	Safari	6/23/2003	Chrome	7/20/2016	4776	Internet Explorer: Intranet sites are set to Compatibility View, which will emulate IE7 and omit `window.location.toString`.
api.Lock 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.Lock.mode 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.Lock.name 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.LockManager 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.LockManager.query 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.LockManager.request 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.MathMLElement 📋	Firefox	12/10/2019	Chrome	1/10/2023	1127
api.MathMLElement.autofocus 📋	Safari	3/14/2022	Firefox	2/14/2023	337
api.MathMLElement.blur 📋	Firefox	12/10/2019	Chrome	1/10/2023	1127
api.MathMLElement.dataset 📋	Firefox	12/10/2019	Chrome	1/10/2023	1127
api.MathMLElement.focus 📋	Firefox	12/10/2019	Chrome	1/10/2023	1127
api.MathMLElement.style 📋	Firefox	12/10/2019	Chrome	1/10/2023	1127
api.MathMLElement.tabIndex 📋	Firefox	12/10/2019	Chrome	1/10/2023	1127
api.MediaCapabilities 📋	Chrome	4/17/2018	Safari	9/19/2019	520
api.MediaCapabilities.decodingInfo 📋	Chrome	4/17/2018	Safari	9/19/2019	520	Chrome: `codecs` string can contain any subset of optional parameters (should be all or none).Chrome: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Chrome Android: `codecs` string can contain any subset of optional parameters (should be all or none).Chrome Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Edge: `codecs` string can contain any subset of optional parameters (should be all or none).Edge: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Firefox: The `webrtc` value of the `type` option is named `transmission`.Firefox: Before Firefox 101, `decodingInfo()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`).Firefox for Android: The `webrtc` value of the `type` option is named `transmission`.Firefox for Android: Before Firefox for Android 101, `decodingInfo()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`).Quest Browser: `codecs` string can contain any subset of optional parameters (should be all or none).Quest Browser: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Opera: `codecs` string can contain any subset of optional parameters (should be all or none).Opera: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Opera Android: `codecs` string can contain any subset of optional parameters (should be all or none).Opera Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Samsung Internet: `codecs` string can contain any subset of optional parameters (should be all or none).Samsung Internet: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).WebView Android: `codecs` string can contain any subset of optional parameters (should be all or none).WebView Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).
api.MediaCapabilities.encodingInfo 📋	Firefox	10/23/2018	Chrome	4/26/2022	1281	Firefox: The `webrtc` value of the `type` option is named `transmission`.Firefox for Android: The `webrtc` value of the `type` option is named `transmission`.
api.MediaDeviceInfo 📋	Firefox	7/2/2015	Safari	9/19/2017	810
api.MediaDeviceInfo.deviceId 📋	Firefox	7/2/2015	Safari	9/19/2017	810
api.MediaDeviceInfo.groupId 📋	Firefox	7/2/2015	Safari	9/19/2017	810	Firefox: Before Firefox 67, related devices are not actually grouped together by `groupId`.Firefox for Android: Before Firefox for Android 67, related devices are not actually grouped together by `groupId`.
api.MediaDeviceInfo.kind 📋	Firefox	7/2/2015	Safari	9/19/2017	810
api.MediaDeviceInfo.label 📋	Firefox	7/2/2015	Safari	9/19/2017	810
api.MediaDeviceInfo.toJSON 📋	Firefox	11/3/2015	Safari	9/19/2017	686
api.MediaDevices 📋	Firefox	10/14/2014	Safari	9/19/2017	1071
api.MediaDevices.devicechange_event 📋	Firefox	3/7/2017	Safari	9/19/2017	196
api.MediaDevices.enumerateDevices 📋	Chrome	12/1/2015	Firefox	8/1/2023	2800	Firefox: `enumerateDevices()` enumerates both input and output devices. Previously only input devices were returned.Firefox: `enumerateDevices()` only returns input devices.Firefox for Android: `enumerateDevices()` enumerates both input and output devices. Previously only input devices were returned.Firefox for Android: `enumerateDevices()` only returns input devices.
api.MediaDevices.getDisplayMedia 📋	Chrome	1/29/2019	Safari	9/19/2019	233	Chrome Android: From Chrome Android 72 to 88, this method was exposed, but always failed with `NotAllowedError`. See bug 40418135.Edge: Available as a member of `Navigator` instead of `MediaDevices`.Firefox: Since Firefox 33 you can capture screen data using `getUserMedia()`, with a `video` constraint called `mediaSource`. Before 52 it relied on a client-configurable list of allowed sites.Firefox for Android: From Firefox Android 66 to 79, this method was exposed, but always failed with `NotAllowedError`.Quest Browser: From Quest Browser 6.0 to 88, this method was exposed, but always failed with `NotAllowedError`. See bug 40418135.Opera Android: From Opera Android 51 to 88, this method was exposed, but always failed with `NotAllowedError`. See bug 40418135.Samsung Internet: From Samsung Internet 11.0 to 88, this method was exposed, but always failed with `NotAllowedError`. See bug 40418135.WebView Android: From WebView Android 72 to 88, this method was exposed, but always failed with `NotAllowedError`. See bug 40418135.
api.MediaDevices.getSupportedConstraints 📋	Firefox	1/26/2016	Safari	9/19/2017	602
api.MediaDevices.getSupportedConstraints.return_object_property_deviceId 📋	Firefox	1/26/2016	Safari	3/25/2019	1154
api.MediaDevices.getSupportedConstraints.return_object_property_echoCancellation 📋	Firefox	4/26/2016	Safari	3/24/2020	1428
api.MediaDevices.getSupportedConstraints.return_object_property_facingMode 📋	Firefox	1/26/2016	Safari	3/25/2019	1154
api.MediaDevices.getSupportedConstraints.return_object_property_frameRate 📋	Firefox	1/26/2016	Safari	3/25/2019	1154
api.MediaDevices.getSupportedConstraints.return_object_property_groupId 📋	Chrome	8/31/2016	Safari	7/29/2025	3254
api.MediaDevices.getSupportedConstraints.return_object_property_height 📋	Firefox	1/26/2016	Safari	3/25/2019	1154
api.MediaDevices.getSupportedConstraints.return_object_property_width 📋	Firefox	1/26/2016	Safari	3/25/2019	1154
api.MediaDevices.getUserMedia 📋	Firefox	2/24/2015	Safari	9/19/2017	938	Chrome: If you need this capability before version 53, refer to `navigator.webkitGetUserMedia`, a prefixed form of the deprecated `navigator.getUserMedia` API.Chrome Android: If you need this capability before version 53, refer to `navigator.webkitGetUserMedia`, a prefixed form of the deprecated `navigator.getUserMedia` API.Firefox: If you need this capability before version 36, refer to `navigator.mozGetUserMedia`, a prefixed form of the deprecated `navigator.getUserMedia` API.Firefox: Before Firefox 55, `getUserMedia()` incorrectly returns `NotSupportedError` when the list of constraints specified is empty, or has all constraints set to `false`. Starting in Firefox 55, this situation now correctly calls the failure handler with a `TypeError`.Firefox: When using the Firefox-specific `video` constraint called `mediaSource` to request display capture, Firefox 66 and later consider values of `screen` and `window` to both cause a list of screens and windows to be shown.Firefox: Starting in Firefox 66, `getUserMedia()` can no longer be used in sandboxed `<iframe>`s or `data` URLs entered in the address bar by the user.Firefox for Android: If you need this capability before version 36, refer to `navigator.mozGetUserMedia`, a prefixed form of the deprecated `navigator.getUserMedia` API.Firefox for Android: Before Firefox for Android 55, `getUserMedia()` incorrectly returns `NotSupportedError` when the list of constraints specified is empty, or has all constraints set to `false`. Starting in Firefox for Android 55, this situation now correctly calls the failure handler with a `TypeError`.Firefox for Android: When using the Firefox for Android-specific `video` constraint called `mediaSource` to request display capture, Firefox for Android 66 and later consider values of `screen` and `window` to both cause a list of screens and windows to be shown.Firefox for Android: Starting in Firefox for Android 66, `getUserMedia()` can no longer be used in sandboxed `<iframe>`s or `data` URLs entered in the address bar by the user.Quest Browser: If you need this capability before version 5.0, refer to `navigator.webkitGetUserMedia`, a prefixed form of the deprecated `navigator.getUserMedia` API.Opera: If you need this capability before version 40, refer to `navigator.webkitGetUserMedia`, a prefixed form of the deprecated `navigator.getUserMedia` API.Opera Android: If you need this capability before version 41, refer to `navigator.webkitGetUserMedia`, a prefixed form of the deprecated `navigator.getUserMedia` API.
api.MediaDevices.getUserMedia.secure_context_required	Chrome	8/31/2016	Firefox	7/9/2019	1042
api.MediaElementAudioSourceNode 📋	Chrome	10/25/2011	Firefox	10/29/2013	735
api.MediaElementAudioSourceNode.MediaElementAudioSourceNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.MediaElementAudioSourceNode.mediaElement 📋	Chrome	10/25/2011	Firefox	10/22/2019	2919
api.MediaEncryptedEvent 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaEncryptedEvent.MediaEncryptedEvent 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaEncryptedEvent.initData 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaEncryptedEvent.initDataType 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaError 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
api.MediaError.code 📋	Safari	3/18/2008	Chrome	9/15/2009	546
api.MediaError.message 📋	Firefox	3/7/2017	Safari	9/20/2021	1658
api.MediaKeyMessageEvent 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyMessageEvent.MediaKeyMessageEvent 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyMessageEvent.message 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyMessageEvent.messageType 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.close 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.closed 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.expiration 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.generateRequest 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.keyStatuses 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.keystatuseschange_event 📋	Chrome	12/1/2016	Safari	3/25/2019	844	Chrome: The `onkeystatuseschange` event handler property is not supported.Chrome Android: The `onkeystatuseschange` event handler property is not supported.Opera: The `onkeystatuseschange` event handler property is not supported.Opera Android: The `onkeystatuseschange` event handler property is not supported.Samsung Internet: The `onkeystatuseschange` event handler property is not supported.WebView Android: The `onkeystatuseschange` event handler property is not supported.
api.MediaKeySession.load 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.message_event 📋	Chrome	12/1/2016	Safari	3/25/2019	844	Chrome: The `onmessage` event handler property is not supported.Chrome Android: The `onmessage` event handler property is not supported.Opera: The `onmessage` event handler property is not supported.Opera Android: The `onmessage` event handler property is not supported.Samsung Internet: The `onmessage` event handler property is not supported.WebView Android: The `onmessage` event handler property is not supported.
api.MediaKeySession.remove 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.sessionId 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySession.update 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.@@iterator	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.entries	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.forEach	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.get 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.has 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.keys	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.size 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeyStatusMap.values	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySystemAccess 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySystemAccess.createMediaKeys 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeySystemAccess.getConfiguration 📋	Chrome	4/14/2015	Safari	3/25/2019	1441	Firefox: Before Firefox 50, the returned object has neither a `distinctiveIdentifier` nor a `persistentState` property.Firefox for Android: Before Firefox for Android 50, the returned object has neither a `distinctiveIdentifier` nor a `persistentState` property.
api.MediaKeySystemAccess.keySystem 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeys 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeys.createSession 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaKeys.setServerCertificate 📋	Chrome	4/14/2015	Safari	3/25/2019	1441
api.MediaList 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MediaList.appendMedium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MediaList.deleteMedium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MediaList.item 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MediaList.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MediaList.mediaText 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MediaList.toString 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MediaMetadata 📋	Chrome	3/9/2017	Firefox	10/20/2020	1321	Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaMetadata.MediaMetadata 📋	Chrome	3/9/2017	Firefox	10/20/2020	1321
api.MediaMetadata.album 📋	Chrome	3/9/2017	Firefox	10/20/2020	1321
api.MediaMetadata.artist 📋	Chrome	3/9/2017	Firefox	10/20/2020	1321
api.MediaMetadata.artwork 📋	Chrome	3/9/2017	Firefox	10/20/2020	1321
api.MediaMetadata.title 📋	Chrome	3/9/2017	Firefox	10/20/2020	1321
api.MediaQueryList 📋	Chrome	2/3/2011	Firefox	8/16/2011	194
api.MediaQueryList.EventTarget_inheritance	Chrome	11/18/2014	Safari	9/16/2020	2129
api.MediaQueryList.addListener 📋	Chrome	2/3/2011	Firefox	8/16/2011	194
api.MediaQueryList.change_event 📋	Chrome	11/18/2014	Safari	9/16/2020	2129
api.MediaQueryList.matches 📋	Chrome	2/3/2011	Firefox	8/16/2011	194
api.MediaQueryList.media 📋	Chrome	2/3/2011	Firefox	8/16/2011	194
api.MediaQueryList.removeListener 📋	Chrome	2/3/2011	Firefox	8/16/2011	194
api.MediaQueryListEvent 📋	Chrome	11/18/2014	Safari	9/16/2020	2129
api.MediaQueryListEvent.MediaQueryListEvent 📋	Chrome	11/18/2014	Safari	9/16/2020	2129
api.MediaQueryListEvent.matches 📋	Chrome	11/18/2014	Safari	9/16/2020	2129
api.MediaQueryListEvent.media 📋	Chrome	11/18/2014	Safari	9/16/2020	2129
api.MediaRecorder 📋	Firefox	10/29/2013	Safari	4/26/2021	2736	Firefox: Before Firefox 58, using `MediaStream.addTrack()` on a stream obtained using `getUserMedia()`, then attempting to record the resulting stream would result in only recording the original stream without the added tracks (severe bug).Firefox for Android: Before Firefox for Android 58, using `MediaStream.addTrack()` on a stream obtained using `getUserMedia()`, then attempting to record the resulting stream would result in only recording the original stream without the added tracks (severe bug).
api.MediaRecorder.MediaRecorder 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.MediaRecorder.options_parameter	Firefox	12/15/2015	Safari	4/26/2021	1959
api.MediaRecorder.audioBitsPerSecond 📋	Chrome	3/2/2016	Safari	4/26/2021	1881
api.MediaRecorder.dataavailable_event 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.error_event 📋	Firefox	10/29/2013	Safari	4/26/2021	2736	Chrome: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.Chrome Android: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.Edge: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.Quest Browser: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.Opera: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.Opera Android: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.Samsung Internet: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.WebView Android: The interface for this event is a plain `Event`, not `ErrorEvent`. See bug 40791876.
api.MediaRecorder.isTypeSupported_static 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.mimeType 📋	Firefox	10/29/2013	Safari	4/26/2021	2736	Chrome: Before Chrome 49, only video is supported, not audio.Chrome Android: Before Chrome Android 49, only video is supported, not audio.Firefox: Starting with Firefox 71, the behavior of `mimeType` is more consistent. For example, it now returns the media type even after recording has stopped.WebView Android: Before WebView Android 49, only video is supported, not audio.
api.MediaRecorder.pause 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.pause_event 📋	Chrome	3/2/2016	Safari	4/26/2021	1881
api.MediaRecorder.requestData 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.resume 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.resume_event 📋	Chrome	3/2/2016	Safari	4/26/2021	1881
api.MediaRecorder.start 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.start_event 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.state 📋	Firefox	10/29/2013	Safari	4/26/2021	2736	Chrome: Before Chrome 49, only video is supported, not audio.Chrome Android: Before Chrome Android 49, only video is supported, not audio.WebView Android: Before WebView Android 49, only video is supported, not audio.
api.MediaRecorder.stop 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.stop_event 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.MediaRecorder.stream 📋	Firefox	10/29/2013	Safari	4/26/2021	2736	Chrome: Before Chrome 49, only video is supported, not audio.Chrome Android: Before Chrome Android 49, only video is supported, not audio.
api.MediaRecorder.videoBitsPerSecond 📋	Chrome	3/2/2016	Safari	4/26/2021	1881
api.MediaSession 📋	Chrome	3/12/2019	Safari	9/20/2021	923	Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.metadata 📋	Chrome	3/12/2019	Safari	9/20/2021	923	Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.playbackState 📋	Chrome	3/12/2019	Safari	9/20/2021	923	Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.setActionHandler 📋	Chrome	3/12/2019	Safari	9/20/2021	923	Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.setActionHandler.nexttrack_type	Chrome	3/12/2019	Safari	9/20/2021	923
api.MediaSession.setActionHandler.pause_type	Chrome	3/12/2019	Safari	9/20/2021	923
api.MediaSession.setActionHandler.play_type	Chrome	3/12/2019	Safari	9/20/2021	923
api.MediaSession.setActionHandler.previoustrack_type	Chrome	3/12/2019	Safari	9/20/2021	923
api.MediaSession.setActionHandler.seekbackward_type	Chrome	3/12/2019	Safari	9/20/2021	923
api.MediaSession.setActionHandler.seekforward_type	Chrome	3/12/2019	Safari	9/20/2021	923
api.MediaSession.setActionHandler.seekto_type	Chrome	10/22/2019	Safari	9/20/2021	699
api.MediaSession.setActionHandler.skipad_type	Firefox	10/20/2020	Chrome	8/20/2024	1400
api.MediaSession.setActionHandler.stop_type	Chrome	9/10/2019	Safari	9/20/2021	741
api.MediaSession.setPositionState 📋	Chrome	4/7/2020	Safari	9/20/2021	531	Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSource 📋	Chrome	11/12/2013	Firefox	11/3/2015	721	Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.MediaSource 📋	Chrome	11/12/2013	Firefox	11/3/2015	721	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.activeSourceBuffers 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.addSourceBuffer 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.clearLiveSeekableRange 📋	Firefox	11/15/2016	Chrome	10/17/2017	336	Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.duration 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.endOfStream 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.isTypeSupported_static 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Chrome: `codecs` string can contain any subset of optional parameters (should be all or none).Chrome: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Chrome Android: `codecs` string can contain any subset of optional parameters (should be all or none).Chrome Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Edge: `codecs` string can contain any subset of optional parameters (should be all or none).Edge: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Firefox: Before Firefox 101, `isTypeSupported()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`).Firefox for Android: Before Firefox 101, `isTypeSupported()` ignored `codecs` parameter options for `av01` codecs (treating them as `av1`).Internet Explorer: Only works on Windows 8+.Quest Browser: `codecs` string can contain any subset of optional parameters (should be all or none).Quest Browser: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Opera: `codecs` string can contain any subset of optional parameters (should be all or none).Opera: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Opera Android: `codecs` string can contain any subset of optional parameters (should be all or none).Opera Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: `codecs` string can contain any subset of optional parameters (should be all or none).Samsung Internet: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).WebView Android: `codecs` string can contain any subset of optional parameters (should be all or none).WebView Android: Errors if `codecs` string contains unexpected characters (should evaluate string up to character).
api.MediaSource.readyState 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.removeSourceBuffer 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.setLiveSeekableRange 📋	Firefox	11/15/2016	Chrome	10/17/2017	336	Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.sourceBuffers 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.sourceclose_event 📋	Chrome	8/31/2016	Firefox	3/23/2021	1665	Chrome: The `onsourceclose` event handler property is not supported.Chrome Android: The `onsourceclose` event handler property is not supported.Edge: The `onsourceclose` event handler property is not supported.Firefox: The `onsourceclose` event handler property is not supported.Firefox for Android: The `onsourceclose` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onsourceclose` event handler property is not supported.Opera Android: The `onsourceclose` event handler property is not supported.Safari: The `onsourceclose` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onsourceclose` event handler property is not supported.WebView Android: The `onsourceclose` event handler property is not supported.
api.MediaSource.sourceended_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onsourceended` event handler property is not supported.Chrome Android: The `onsourceended` event handler property is not supported.Edge: The `onsourceended` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onsourceended` event handler property is not supported.Opera Android: The `onsourceended` event handler property is not supported.Safari: The `onsourceended` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onsourceended` event handler property is not supported.WebView Android: The `onsourceclose` event handler property is not supported.
api.MediaSource.sourceopen_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onsourceopen` event handler property is not supported.Chrome Android: The `onsourceopen` event handler property is not supported.Edge: The `onsourceopen` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onsourceopen` event handler property is not supported.Opera Android: The `onsourceopen` event handler property is not supported.Safari: The `onsourceopen` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onsourceopen` event handler property is not supported.WebView Android: The `onsourceopen` event handler property is not supported.
api.MediaStream 📋	Firefox	8/28/2012	Safari	9/19/2017	1848
api.MediaStream.MediaStream 📋	Firefox	1/26/2016	Safari	9/19/2017	602
api.MediaStream.active 📋	Chrome	4/14/2015	Safari	9/19/2017	889
api.MediaStream.addTrack 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStream.addtrack_event 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStream.clone 📋	Chrome	5/20/2014	Safari	9/19/2017	1218
api.MediaStream.getAudioTracks 📋	Chrome	3/26/2013	Safari	9/19/2017	1638	Firefox: Before Firefox 64, this method returned an array of `AudioStreamTrack` objects. However, `MediaStreamTrack` has now subsumed that interface's functionality.Firefox for Android: Before Firefox for Android 64, this method returned an array of `AudioStreamTrack` objects. However, `MediaStreamTrack` has now subsumed that interface's functionality.
api.MediaStream.getTrackById 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStream.getTracks 📋	Chrome	10/7/2014	Safari	9/19/2017	1078
api.MediaStream.getVideoTracks 📋	Chrome	3/26/2013	Safari	9/19/2017	1638	Firefox: Before Firefox 64, this method returned an array of `VideoStreamTrack` objects. However, `MediaStreamTrack` has now subsumed that interface's functionality.Firefox for Android: Before Firefox for Android 64, this method returned an array of `VideoStreamTrack` objects. However, `MediaStreamTrack` has now subsumed that interface's functionality.
api.MediaStream.id 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStream.removeTrack 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStream.removetrack_event 📋	Chrome	3/26/2013	Firefox	1/7/2020	2478	Firefox: Before Firefox 72, the event handler was exposed but had no effect.Firefox for Android: Before Firefox for Android 79, the event handler was exposed but had no effect.
api.MediaStreamAudioDestinationNode 📋	Chrome	2/21/2013	Safari	9/19/2017	1671
api.MediaStreamAudioDestinationNode.MediaStreamAudioDestinationNode 📋	Chrome	3/9/2017	Safari	4/26/2021	1509
api.MediaStreamAudioDestinationNode.stream 📋	Chrome	2/21/2013	Safari	9/19/2017	1671
api.MediaStreamAudioSourceNode 📋	Chrome	9/25/2012	Safari	9/19/2017	1820
api.MediaStreamAudioSourceNode.MediaStreamAudioSourceNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.MediaStreamAudioSourceNode.mediaStream 📋	Chrome	9/25/2012	Firefox	10/22/2019	2583
api.MediaStreamTrack 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrack.applyConstraints 📋	Firefox	12/15/2015	Safari	9/19/2017	644
api.MediaStreamTrack.applyConstraints.deviceId_constraint 📋	Firefox	12/15/2015	Safari	9/19/2017	644	Firefox: Before Firefox 69, Firefox only supported `deviceId` in constraints passed into `getUserMedia()`.Firefox for Android: Firefox for Android only supports `deviceId` when used in constraints passed into `getUserMedia()`.
api.MediaStreamTrack.applyConstraints.echoCancellation_constraint 📋	Firefox	11/15/2016	Safari	9/19/2017	308
api.MediaStreamTrack.applyConstraints.facingMode_constraint 📋	Firefox	11/15/2016	Safari	9/19/2017	308
api.MediaStreamTrack.applyConstraints.frameRate_constraint 📋	Firefox	11/15/2016	Safari	9/19/2017	308
api.MediaStreamTrack.applyConstraints.groupId_constraint 📋	Chrome	6/5/2017	Firefox	10/22/2019	869
api.MediaStreamTrack.applyConstraints.height_constraint 📋	Firefox	11/15/2016	Safari	9/19/2017	308
api.MediaStreamTrack.applyConstraints.width_constraint 📋	Firefox	11/15/2016	Safari	9/19/2017	308
api.MediaStreamTrack.clone 📋	Chrome	5/20/2014	Safari	9/19/2017	1218
api.MediaStreamTrack.enabled 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrack.ended_event 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrack.getCapabilities 📋	Chrome	6/5/2017	Firefox	10/29/2024	2703
api.MediaStreamTrack.getConstraints 📋	Chrome	8/31/2016	Safari	9/19/2017	384
api.MediaStreamTrack.getSettings 📋	Firefox	11/15/2016	Safari	9/19/2017	308
api.MediaStreamTrack.id 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrack.kind 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrack.label 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrack.mute_event 📋	Chrome	3/26/2013	Firefox	3/13/2018	1813
api.MediaStreamTrack.muted 📋	Chrome	10/7/2014	Firefox	3/13/2018	1253	Firefox: Does not currently track the microphone's muted state from the operating system, see bug 1739163.Firefox for Android: Does not currently track the microphone's muted state from the operating system, see bug 1739163.
api.MediaStreamTrack.readyState 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrack.stop 📋	Chrome	1/14/2014	Safari	9/19/2017	1344
api.MediaStreamTrack.unmute_event 📋	Chrome	3/26/2013	Firefox	3/13/2018	1813
api.MediaStreamTrackEvent 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MediaStreamTrackEvent.MediaStreamTrackEvent 📋	Firefox	11/15/2016	Safari	9/19/2017	308
api.MediaStreamTrackEvent.track 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.MessageChannel 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315	Node.js: Available as a part of the `worker_threads` module.
api.MessageChannel.MessageChannel 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315
api.MessageChannel.port1 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315
api.MessageChannel.port2 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315
api.MessageEvent 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.MessageEvent.MessageEvent 📋	Chrome	12/13/2011	Firefox	12/10/2013	728
api.MessageEvent.data 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.MessageEvent.initMessageEvent 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.MessageEvent.lastEventId 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.MessageEvent.origin 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.MessageEvent.ports 📋	Firefox	6/17/2008	Chrome	1/25/2010	587
api.MessageEvent.source 📋	Firefox	6/17/2008	Safari	6/8/2009	356
api.MessagePort 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315	Node.js: Available as a part of the `worker_threads` module.Node.js: Available as a part of the `worker_threads` module.Node.js: Inherits from Node `EventEmitter` instead of DOM `EventTarget`.
api.MessagePort.close 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315
api.MessagePort.message_event 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315	Node.js: Supports the event, but only via Node `EventEmitter`.
api.MessagePort.messageerror_event 📋	Chrome	7/25/2017	Safari	3/27/2023	2071	Node.js: Supports the event, but only via Node `EventEmitter`.Node.js: Supports the event, but only via Node `EventEmitter`.
api.MessagePort.postMessage 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315	Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown.
api.MessagePort.start 📋	Chrome	5/21/2009	Firefox	9/22/2015	2315
api.MessagePort.worker_support	Chrome	1/25/2010	Firefox	9/22/2015	2066
api.MimeType 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MimeType.description 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MimeType.enabledPlugin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MimeType.suffixes 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MimeType.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MimeTypeArray 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MimeTypeArray.item 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: Before version 59, method parameters were optionalChrome Android: Before version 59, method parameters were optionalQuest Browser: Before version 5.0, method parameters were optionalSamsung Internet: Before Samsung Internet 7.0, method parameters were optionalWebView Android: Before version 59, method parameters were optional
api.MimeTypeArray.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MimeTypeArray.namedItem 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: Before version 59, method parameters were optionalChrome Android: Before version 59, method parameters were optionalQuest Browser: Before version 5.0, method parameters were optionalSamsung Internet: Before Samsung Internet 7.0, method parameters were optionalWebView Android: Before version 59, method parameters were optional
api.MouseEvent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.MouseEvent 📋	Firefox	3/13/2012	Safari	10/22/2013	588
api.MouseEvent.altKey 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.button 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.buttons 📋	Firefox	8/28/2012	Safari	4/12/2018	2053	Firefox: Restrictions apply depending on OS.
api.MouseEvent.clientX 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.clientY 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.ctrlKey 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.getModifierState 📋	Firefox	8/28/2012	Safari	3/25/2019	2400
api.MouseEvent.initMouseEvent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.layerX	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.layerY	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.metaKey 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.movementX 📋	Chrome	8/26/2014	Safari	9/30/2015	400
api.MouseEvent.movementY 📋	Chrome	8/26/2014	Safari	9/30/2015	400
api.MouseEvent.offsetX 📋	Safari	6/23/2003	Firefox	7/2/2015	4392
api.MouseEvent.offsetY 📋	Safari	6/23/2003	Firefox	7/2/2015	4392
api.MouseEvent.pageX 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.pageY 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.relatedTarget 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.screenX 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.screenY 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.shiftKey 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.MouseEvent.x 📋	Safari	3/18/2008	Firefox	4/19/2017	3319
api.MouseEvent.y 📋	Safari	3/18/2008	Firefox	4/19/2017	3319
api.MutationObserver 📋	Firefox	7/17/2012	Safari	10/22/2013	462
api.MutationObserver.MutationObserver 📋	Firefox	7/17/2012	Safari	10/22/2013	462
api.MutationObserver.disconnect 📋	Chrome	3/28/2012	Safari	7/25/2012	119
api.MutationObserver.observe 📋	Chrome	3/28/2012	Safari	7/25/2012	119	Chrome: Before Chrome 33, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Chrome throws a syntax error.Chrome Android: Before Chrome Android 33, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Chrome Android throws a syntax error.Edge: Before Edge 79, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Edge throws a syntax error.Firefox: Before Firefox 36, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Firefox throws a syntax error.Firefox for Android: Before Firefox for Android 36, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Firefox for Android throws a syntax error.Internet Explorer: Internet Explorer requires `attributes: true` when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Internet Explorer throws a syntax error.Quest Browser: Before Quest Browser 5.0, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Quest Browser throws a syntax error.Opera: Before Opera 20, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Opera throws a syntax error.Opera Android: Before Opera Android 20, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Opera Android throws a syntax error.Safari: Before Safari 10.1, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Safari throws a syntax error.Safari on iOS: Before Safari iOS 10.3, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Safari throws a syntax error.Samsung Internet: Before Samsung Internet 2.0, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Samsung Internet throws a syntax error.WebView Android: Before WebView 4.4.3, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then WebView throws a syntax error.WebView on iOS: Before Safari iOS 10.3, `attributes: true` is required when using `attributeFilter` or `attributeOldValue`. If `attributes: true` is not present, then Safari throws a syntax error.
api.MutationObserver.takeRecords 📋	Chrome	6/26/2012	Safari	7/25/2012	29
api.MutationRecord 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.addedNodes 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.attributeName 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.attributeNamespace 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.nextSibling 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.oldValue 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.previousSibling 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.removedNodes 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.target 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.MutationRecord.type 📋	Chrome	12/13/2011	Safari	10/22/2013	679
api.NamedNodeMap 📋	Safari	6/23/2003	Firefox	12/1/2014	4179
api.NamedNodeMap.getNamedItem 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NamedNodeMap.getNamedItemNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NamedNodeMap.item 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NamedNodeMap.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NamedNodeMap.removeNamedItem 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NamedNodeMap.removeNamedItemNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NamedNodeMap.setNamedItem 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NamedNodeMap.setNamedItemNS 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NavigateEvent 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.NavigateEvent 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.canIntercept 📋	Chrome	9/2/2022	Firefox	1/13/2026	1229
api.NavigateEvent.destination 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.downloadRequest 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.formData 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.hasUAVisualTransition 📋	Chrome	10/10/2023	Firefox	1/13/2026	826
api.NavigateEvent.hashChange 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.info 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.intercept 📋	Chrome	9/2/2022	Firefox	1/13/2026	1229
api.NavigateEvent.navigationType 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.scroll 📋	Chrome	9/2/2022	Firefox	1/13/2026	1229
api.NavigateEvent.signal 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigateEvent.sourceElement 📋	Chrome	4/1/2025	Firefox	1/13/2026	287
api.NavigateEvent.userInitiated 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.activation 📋	Chrome	3/19/2024	Firefox	1/13/2026	665
api.Navigation.back 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.canGoBack 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.canGoForward 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.currentEntry 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.currententrychange_event 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.entries 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.forward 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.navigate 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330	Chrome: Chrome allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).Chrome Android: Chrome Android allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).Edge: Edge allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).Quest Browser: Quest Browser allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).Opera: Opera allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).Opera Android: Opera Android allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).Samsung Internet: Samsung Internet allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).WebView Android: WebView Android allows `javascript:` URLs when calling `navigate()`, contrary to the specification (bug 439994590).
api.Navigation.navigate_event 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.navigateerror_event 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.navigatesuccess_event 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.reload 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.transition 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.traverseTo 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigation.updateCurrentEntry 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationActivation 📋	Chrome	3/19/2024	Firefox	1/13/2026	665
api.NavigationActivation.entry 📋	Chrome	3/19/2024	Firefox	1/13/2026	665
api.NavigationActivation.from 📋	Chrome	3/19/2024	Firefox	1/13/2026	665
api.NavigationActivation.navigationType 📋	Chrome	3/19/2024	Firefox	1/13/2026	665
api.NavigationCurrentEntryChangeEvent 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationCurrentEntryChangeEvent.NavigationCurrentEntryChangeEvent 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationCurrentEntryChangeEvent.from 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationCurrentEntryChangeEvent.navigationType 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationDestination 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationDestination.getState 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationDestination.id 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationDestination.index 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationDestination.key 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationDestination.sameDocument 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationDestination.url 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry.dispose_event 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry.getState 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry.id 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry.index 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry.key 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry.sameDocument 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationHistoryEntry.url 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationPreloadManager 📋	Chrome	6/5/2017	Firefox	4/5/2022	1765
api.NavigationPreloadManager.disable 📋	Chrome	6/5/2017	Firefox	4/5/2022	1765
api.NavigationPreloadManager.enable 📋	Chrome	6/5/2017	Firefox	4/5/2022	1765
api.NavigationPreloadManager.getState 📋	Chrome	6/5/2017	Firefox	4/5/2022	1765
api.NavigationPreloadManager.setHeaderValue 📋	Chrome	6/5/2017	Firefox	4/5/2022	1765
api.NavigationTransition 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationTransition.finished 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationTransition.from 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.NavigationTransition.navigationType 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Navigator 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.appCodeName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.appName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.appVersion 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.canShare 📋	Safari	9/16/2020	Chrome	8/20/2024	1434	Chrome: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.Edge: Only supported on Windows.Opera: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.
api.Navigator.canShare.data_text_parameter 📋	Safari	9/16/2020	Firefox	1/11/2022	482
api.Navigator.clipboard 📋	Chrome	4/17/2018	Safari	3/24/2020	707
api.Navigator.cookieEnabled 📋	Firefox	11/9/2004	Safari	9/16/2024	7251	Firefox: Before Firefox 8, `navigator.cookieEnabled` would report the wrong result if a site exception was in place for the page on which the check was performed. This has been fixed.Firefox for Android: Before Firefox for Android 8, `navigator.cookieEnabled` would report the wrong result if a site exception was in place for the page on which the check was performed. This has been fixed.Internet Explorer: `navigator.cookieEnabled` returns `true` even if the browser is set to block cookies (for example, if the page is in the Restricted sites security zone).Safari: Returns `true` even if the browser is set to block cookies if `navigator.cookieEnabled` is invoked inside a third-party `iframe`)Safari on iOS: Returns `true` even if the browser is set to block cookies if `navigator.cookieEnabled` is invoked inside a third-party `iframe`)WebView on iOS: Returns `true` even if the browser is set to block cookies if `navigator.cookieEnabled` is invoked inside a third-party `iframe`)
api.Navigator.credentials 📋	Chrome	5/25/2016	Safari	9/19/2019	1212
api.Navigator.geolocation 📋	Firefox	6/30/2009	Safari	6/7/2010	342
api.Navigator.geolocation.secure_context_required	Chrome	12/1/2015	Firefox	8/8/2017	616
api.Navigator.getGamepads 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.Navigator.gpu 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.Navigator.hardwareConcurrency 📋	Chrome	8/26/2014	Safari	3/14/2022	2757	Safari: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.Safari on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.WebView on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.
api.Navigator.javaEnabled 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.language 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 4, this property's value was also part of the user agent string, as reported by `navigator.userAgent`. Starting in Firefox 5, this property's value is based on the value of the `Accept-Language` HTTP header.Internet Explorer: Closest available (non-standard) properties are `userLanguage` and `browserLanguage`.
api.Navigator.languages 📋	Chrome	8/26/2014	Safari	3/27/2017	944	Chrome: Before Chrome 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.Chrome Android: Before Chrome Android 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.Firefox: In Firefox, the `navigator.languages` property's value is taken from the `intl.accept_languages` preference.Firefox for Android: In Firefox for Android, the `navigator.languages` property's value is taken from the `intl.accept_languages` preference.Internet Explorer: Closest available (non-standard) properties are `userLanguage` and `browserLanguage`.Quest Browser: Before Quest Browser 5.0, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.WebView Android: Before version 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.
api.Navigator.locks 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.Navigator.maxTouchPoints 📋	Chrome	5/20/2014	Safari	9/19/2019	1948
api.Navigator.mediaCapabilities 📋	Chrome	4/17/2018	Safari	9/19/2019	520
api.Navigator.mediaDevices 📋	Firefox	2/24/2015	Safari	9/19/2017	938
api.Navigator.mediaDevices.secure_context_required	Safari	9/19/2017	Firefox	9/3/2019	714
api.Navigator.mediaSession 📋	Chrome	3/12/2019	Safari	9/20/2021	923
api.Navigator.mimeTypes 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.onLine 📋	Firefox	11/29/2005	Safari	6/8/2009	1287	Chrome: Earlier versions of Chrome incorrectly return true when a tab is first opened, but it starts reporting the correct connectivity status after the first network event. Windows: 11, macOS: 14, ChromeOS: 13, Linux: Always returns `true`. For history, see bug 40530968.Firefox: Since Firefox 4 the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return `false`).Internet Explorer: in Internet Explorer 8 'online' and 'offline' events are raised on the `document.body`; under IE 9 they are raised on both `document.body` and `window`.Opera: From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity.Opera Android: From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity.WebView Android: Can incorrectly return true, see bug 41369933.
api.Navigator.pdfViewerEnabled 📋	Chrome	9/21/2021	Safari	3/27/2023	552
api.Navigator.permissions 📋	Chrome	5/19/2015	Safari	9/12/2022	2673
api.Navigator.platform 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 69, `platform` would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.Firefox: You can override the value returned by `platform` by setting the preference `general.platform.override` to the string you wish to be returned instead.
api.Navigator.plugins 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.product 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.productSub 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Always returns `20030107`.Chrome Android: Always returns `20030107`.Edge: Always returns `20030107`.Quest Browser: Always returns `20030107`.Opera: Always returns `20030107`.Opera Android: Always returns `20030107`.Safari: Always returns `20030107`.Safari on iOS: Always returns `20030107`.Samsung Internet: Always returns `20030107`.WebView Android: Always returns `20030107`.WebView on iOS: Always returns `20030107`.
api.Navigator.requestMediaKeySystemAccess 📋	Chrome	4/14/2015	Safari	3/25/2019	1441	Chrome: The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.Chrome: The function does not exist in insecure contexts. This was not enforced until Chrome 58.Chrome Android: The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.Chrome Android: The function does not exist in insecure contexts. This was not enforced until Chrome Android 58.Firefox: Starting in Firefox 55, if neither `audioCapabilities` nor `videoCapabilities` is specified in `supportedConfigurations`, a warning is output to the web console.Firefox: In addition, starting in Firefox 55, if in `supportedConfigurations`, either `audioCapabilities`'s or `videoCapabilities`'s `contentType` value doesn't specify a `"codecs"` substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.Firefox: In the future, if neither `audioCapabilities` nor `videoCapabilities` is specified in the `supportedConfigurations`, a `NotSupported` exception will be thrown.Firefox for Android: Starting in Firefox for Android 55, if neither `audioCapabilities` nor `videoCapabilities` is specified in `supportedConfigurations`, a warning is output to the web console.Firefox for Android: In addition, starting in Firefox for Android 55, if in `supportedConfigurations`, either `audioCapabilities`'s or `videoCapabilities`'s `contentType` value doesn't specify a `"codecs"` substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.Firefox for Android: In the future, if neither `audioCapabilities` nor `videoCapabilities` is specified in the `supportedConfigurations`, a `NotSupported` exception will be thrown.Quest Browser: The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.Quest Browser: The function does not exist in insecure contexts. This was not enforced until Quest Browser 5.0.Opera: The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.Opera: The function does not exist in insecure contexts. This was not enforced until Opera 45.Opera Android: The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.Opera Android: The function does not exist in insecure contexts. This was not enforced until Opera 45.Samsung Internet: The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.Samsung Internet: The function does not exist in insecure contexts. This was not enforced until Samsung Internet 7.0.WebView Android: The spec requires that the passed `supportedConfigurations` option contain at least one of `audioCapabilities` or `videoCapabilities`, and that said parameters include a codec string.WebView Android: The function does not exist in insecure contexts. This was not enforced until version 58.
api.Navigator.sendBeacon 📋	Firefox	7/22/2014	Safari	4/12/2018	1360	Chrome: Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Chrome Android: Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Quest Browser: Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Opera: Starting in Opera 46, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Opera Android: Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Samsung Internet: Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.WebView Android: Starting in Chrome 59, this method cannot send a `Blob` whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.
api.Navigator.serviceWorker 📋	Chrome	1/21/2015	Safari	4/12/2018	1177	Firefox: In Firefox private windows, the `serviceWorker` object is `undefined`. See bug 1320796.Firefox for Android: In Firefox for Android private windows, the `serviceWorker` object is `undefined`. See bug 1320796.
api.Navigator.share 📋	Safari	3/25/2019	Chrome	8/20/2024	1975	Chrome: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.Edge: Only supported on Windows.Opera: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.
api.Navigator.share.data_text_parameter 📋	Firefox	12/10/2019	Chrome	3/2/2021	448
api.Navigator.storage 📋	Chrome	12/1/2016	Safari	12/13/2021	1838
api.Navigator.userActivation 📋	Chrome	1/29/2019	Firefox	11/21/2023	1757
api.Navigator.userAgent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.vendor 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Navigator.vendorSub 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Navigator.wakeLock 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.Navigator.webdriver 📋	Safari	3/27/2017	Firefox	5/9/2018	408
api.Node 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.Chrome Android: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.Quest Browser: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.Opera: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.Opera Android: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.Safari: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.Safari on iOS: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.Samsung Internet: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.WebView Android: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.WebView on iOS: WebKit and old versions of Blink incorrectly do not make `Node` inherit from `EventTarget`.
api.Node.appendChild 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.baseURI 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
api.Node.childNodes 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.Node.cloneNode 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.compareDocumentPosition 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Internet Explorer: Only supports `contains` for elements
api.Node.contains 📋	Safari	10/24/2003	Firefox	12/20/2011	2979	Internet Explorer: Only supported for `HTMLElement`, not all `Node` objects.
api.Node.firstChild 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Node.getRootNode 📋	Chrome	10/12/2016	Firefox	4/19/2017	189
api.Node.hasChildNodes 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Node.insertBefore 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.isConnected 📋	Chrome	5/25/2016	Safari	9/20/2016	118
api.Node.isDefaultNamespace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Node.isEqualNode 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Node.isSameNode 📋	Safari	10/26/2007	Firefox	8/2/2016	3203
api.Node.lastChild 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Node.lookupNamespaceURI 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Node.lookupPrefix 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Node.nextSibling 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.nodeName 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Node.nodeType 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.nodeValue 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Node.normalize 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Node.ownerDocument 📋	Safari	6/23/2003	Firefox	12/20/2011	3102	Firefox: The `ownerDocument` of doctype nodes (that is, nodes for which `Node.nodeType` is `Node.DOCUMENT_TYPE_NODE` or 10) is `null`.Firefox for Android: The `ownerDocument` of doctype nodes (that is, nodes for which `Node.nodeType` is `Node.DOCUMENT_TYPE_NODE` or 10) is `null`.
api.Node.parentElement 📋	Safari	10/24/2003	Firefox	12/20/2011	2979	Internet Explorer: Only supported on `Element`.Opera: Before Opera 15, this feature was only supported on `Element`.Opera Android: Before Opera Android 14, this feature was only supported on `Element`.
api.Node.parentNode 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.previousSibling 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Node.removeChild 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.replaceChild 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
api.Node.selectstart_event 📋	Safari	4/15/2005	Firefox	3/7/2017	4344
api.Node.textContent 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.NodeIterator 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeIterator.detach 📋	Safari	10/26/2007	Firefox	6/30/2009	613	Chrome: Since Chrome 45, this method does nothing, as specified. See bug 40362826.Chrome Android: Since Chrome Android 45, this method does nothing, as specified. See bug 40362826.Firefox: Since Firefox 22, this method does nothing, as specified. See bug 823549.Firefox for Android: Since Firefox for Android 22, this method does nothing, as specified. See bug 823549.Quest Browser: Since Quest Browser 5.0, this method does nothing, as specified. See bug 40362826.Opera: Since Opera 32, this method does nothing, as specified. See bug 40362826.Opera Android: Since Opera Android 32, this method does nothing, as specified. See bug 40362826.Safari: Since Safari 10, this method does nothing, as specified. See bug 148454.Safari on iOS: Since Safari on iOS 10, this method does nothing, as specified. See bug 148454.Samsung Internet: Since Samsung Internet 5.0, this method does nothing, as specified. See bug 40362826.WebView Android: Since WebView Android 45, this method does nothing, as specified. See bug 40362826.WebView on iOS: Since WebView on iOS 10, this method does nothing, as specified. See bug 148454.
api.NodeIterator.filter 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeIterator.nextNode 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeIterator.pointerBeforeReferenceNode 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeIterator.previousNode 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeIterator.referenceNode 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeIterator.root 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeIterator.whatToShow 📋	Safari	10/26/2007	Firefox	6/30/2009	613
api.NodeList 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NodeList.@@iterator 📋	Firefox	2/24/2015	Safari	9/20/2016	574
api.NodeList.entries	Chrome	5/25/2016	Firefox	11/15/2016	174
api.NodeList.forEach 📋	Chrome	5/25/2016	Firefox	11/15/2016	174
api.NodeList.item 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NodeList.keys	Chrome	5/25/2016	Firefox	11/15/2016	174
api.NodeList.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.NodeList.values	Chrome	5/25/2016	Firefox	11/15/2016	174
api.Notification 📋	Chrome	6/26/2012	Safari	10/22/2013	483	Chrome: Starting in Chrome 49, notifications do not work in incognito mode.Chrome: Before Chrome 42, service worker additions were not supported.Chrome Android: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Quest Browser: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Opera: Starting in Opera 36, notifications do not work in incognito mode.Opera: Before Opera 29, service worker additions were not supported.Opera Android: Notifications in Opera for Android are only available through service workers. To show notifications on Android, see `ServiceWorkerRegistration.showNotification()`.Opera Android: Starting in Opera for Android 36, notifications do not work in incognito mode.Safari on iOS: The `Notification` interface is undefined, unless the page is a web app saved to the home screen. The app's manifest must have a non-default `display` value.Safari on iOS: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Samsung Internet: Notifications in Samsung Internet are only available through service workers. To show notifications on Android, see `ServiceWorkerRegistration.showNotification()`.Samsung Internet: Starting in Samsung Internet 5.0, notifications do not work in incognito mode.
api.Notification.Notification 📋	Chrome	6/26/2012	Safari	10/22/2013	483	Chrome Android: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Chrome Android: This constructor always throws a `TypeError` exception.Quest Browser: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Quest Browser: This constructor always throws a `TypeError` exception.Opera Android: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Opera Android: This constructor always throws a `TypeError` exception.Safari on iOS: This constructor throws a `ReferenceError` exception, unless the page is a web app saved to the home screen. The app's manifest must have a non-default `display` value.Safari on iOS: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Samsung Internet: A notification can only be sent from a service worker. To show a notification, see `ServiceWorkerRegistration.showNotification()`.Samsung Internet: This constructor always throws a `TypeError` exception.
api.Notification.body 📋	Firefox	12/10/2013	Safari	9/19/2017	1379
api.Notification.click_event 📋	Chrome	6/26/2012	Safari	10/22/2013	483
api.Notification.close 📋	Chrome	6/26/2012	Safari	10/22/2013	483
api.Notification.close_event 📋	Chrome	6/26/2012	Safari	10/22/2013	483
api.Notification.data 📋	Firefox	12/1/2014	Safari	9/12/2022	2842
api.Notification.dir 📋	Chrome	6/26/2012	Firefox	12/10/2013	532
api.Notification.error_event 📋	Chrome	6/26/2012	Safari	10/22/2013	483
api.Notification.lang 📋	Firefox	12/10/2013	Safari	9/19/2017	1379
api.Notification.permission_static 📋	Firefox	6/25/2013	Chrome	1/14/2014	203	Safari on iOS: The parent `Notification` interface is undefined unless the page is a web app saved to the home screen. The app's manifest must have a non-default `display` value.
api.Notification.requestPermission_static 📋	Chrome	6/26/2012	Safari	9/20/2021	3373	Firefox: From Firefox 70 onwards, cannot be called from a cross-origin `iframe`.Firefox: From Firefox 72 onwards, can only be called in response to a user gesture such as a `click` event.Firefox for Android: From Firefox Android 79 onwards, cannot be called from a cross-origin `iframe`.Firefox for Android: From Firefox Android 79 onwards, can only be called in response to a user gesture such as a `click` event.Safari: Only supported the deprecated callback syntax.Safari on iOS: The parent `Notification` interface is undefined unless the page is a web app saved to the home screen. The app's manifest must have a non-default `display` value.
api.Notification.requestPermission_static.returns_promise	Chrome	12/1/2015	Safari	9/20/2021	2120
api.Notification.show_event 📋	Chrome	6/26/2012	Safari	10/22/2013	483
api.Notification.silent 📋	Chrome	5/19/2015	Firefox	10/29/2024	3451
api.Notification.title 📋	Firefox	12/10/2013	Safari	9/19/2017	1379
api.NotificationEvent 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.NotificationEvent.NotificationEvent 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.OES_draw_buffers_indexed 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_draw_buffers_indexed.blendEquationSeparateiOES 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_draw_buffers_indexed.blendEquationiOES 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_draw_buffers_indexed.blendFuncSeparateiOES 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_draw_buffers_indexed.blendFunciOES 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_draw_buffers_indexed.colorMaskiOES 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_draw_buffers_indexed.disableiOES 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_draw_buffers_indexed.enableiOES 📋	Chrome	3/29/2022	Firefox	12/13/2022	259
api.OES_element_index_uint 📋	Chrome	1/10/2013	Safari	10/16/2014	644
api.OES_fbo_render_mipmap 📋	Firefox	12/10/2019	Safari	4/26/2021	503
api.OES_standard_derivatives 📋	Chrome	3/8/2011	Safari	10/16/2014	1318
api.OES_texture_float 📋	Chrome	3/8/2011	Safari	10/16/2014	1318
api.OES_texture_float_linear 📋	Chrome	8/20/2013	Safari	10/16/2014	422	Safari on iOS: Only supported on iPadOS.WebView on iOS: Only supported on iPadOS.
api.OES_texture_half_float 📋	Chrome	5/21/2013	Safari	10/16/2014	513
api.OES_texture_half_float_linear 📋	Chrome	8/20/2013	Safari	10/16/2014	422
api.OES_vertex_array_object 📋	Chrome	1/10/2013	Safari	10/16/2014	644
api.OES_vertex_array_object.bindVertexArrayOES 📋	Chrome	1/10/2013	Safari	10/16/2014	644
api.OES_vertex_array_object.createVertexArrayOES 📋	Chrome	1/10/2013	Safari	10/16/2014	644
api.OES_vertex_array_object.deleteVertexArrayOES 📋	Chrome	1/10/2013	Safari	10/16/2014	644
api.OES_vertex_array_object.isVertexArrayOES 📋	Chrome	1/10/2013	Safari	10/16/2014	644
api.OfflineAudioCompletionEvent 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.OfflineAudioCompletionEvent.OfflineAudioCompletionEvent 📋	Chrome	3/9/2017	Safari	9/16/2020	1287
api.OfflineAudioCompletionEvent.renderedBuffer 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.OfflineAudioContext 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.OfflineAudioContext.OfflineAudioContext 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.OfflineAudioContext.OfflineAudioContext.options_parameter	Chrome	10/17/2017	Safari	4/26/2021	1287
api.OfflineAudioContext.complete_event 📋	Chrome	2/21/2013	Firefox	10/29/2013	250
api.OfflineAudioContext.length 📋	Chrome	5/25/2016	Safari	4/26/2021	1797
api.OfflineAudioContext.resume 📋	Chrome	3/3/2015	Safari	9/30/2015	211	Firefox: The method exists but always rejects with `NotSupportedError`. See bug 1265406.Firefox for Android: The method exists but always rejects with `NotSupportedError`. See bug 1265406.
api.OfflineAudioContext.startRendering 📋	Chrome	2/21/2013	Firefox	10/29/2013	250
api.OfflineAudioContext.startRendering.returns_promise	Firefox	3/31/2015	Safari	4/26/2021	2218
api.OffscreenCanvas 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvas.OffscreenCanvas 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvas.convertToBlob 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvas.getContext 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvas.getContext.2d_context	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvas.getContext.bitmaprenderer_context	Chrome	7/30/2019	Safari	3/27/2023	1336
api.OffscreenCanvas.getContext.webgl2_context	Chrome	9/4/2018	Safari	9/18/2023	1840
api.OffscreenCanvas.getContext.webgl_context	Chrome	9/4/2018	Safari	9/18/2023	1840
api.OffscreenCanvas.getContext.webgpu_context 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.OffscreenCanvas.height 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvas.transferToImageBitmap 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvas.width 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.arc 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.arcTo 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.beginPath 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.bezierCurveTo 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.canvas 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.clearRect 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.clip 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.closePath 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.createConicGradient 📋	Chrome	3/1/2022	Safari	3/27/2023	391
api.OffscreenCanvasRenderingContext2D.createImageData 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.createLinearGradient 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.createPattern 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.createRadialGradient 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.direction 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.drawImage 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.ellipse 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.fill 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.fillRect 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.fillStyle 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.fillText 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.font 📋	Chrome	9/4/2018	Safari	3/31/2025	2400	Safari: The `font-weight` can be set, but is not reflected back (see bug 284115).Safari on iOS: The `font-weight` can be set, but is not reflected back (see bug 284115).WebView on iOS: The `font-weight` can be set, but is not reflected back (see bug 284115).
api.OffscreenCanvasRenderingContext2D.getImageData 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.getLineDash 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.getTransform 📋	Chrome	2/4/2020	Safari	3/27/2023	1147
api.OffscreenCanvasRenderingContext2D.globalAlpha 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.globalCompositeOperation 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.imageSmoothingEnabled 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.isPointInPath 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.isPointInStroke 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.letterSpacing 📋	Chrome	3/1/2022	Safari	3/31/2025	1126
api.OffscreenCanvasRenderingContext2D.lineCap 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.lineDashOffset 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.lineJoin 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.lineTo 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.lineWidth 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.measureText 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.miterLimit 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.moveTo 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.putImageData 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.quadraticCurveTo 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.rect 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.reset 📋	Chrome	3/1/2022	Safari	12/11/2023	650
api.OffscreenCanvasRenderingContext2D.resetTransform 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.restore 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.rotate 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.roundRect 📋	Chrome	3/1/2022	Firefox	4/11/2023	406
api.OffscreenCanvasRenderingContext2D.save 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.scale 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.setLineDash 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.setTransform 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.shadowBlur 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.shadowColor 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.shadowOffsetX 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.shadowOffsetY 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.stroke 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.strokeRect 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.strokeStyle 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.strokeText 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.textAlign 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.textBaseline 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.transform 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.translate 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.OffscreenCanvasRenderingContext2D.wordSpacing 📋	Chrome	3/1/2022	Safari	3/31/2025	1126
api.OscillatorNode 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.OscillatorNode.OscillatorNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.OscillatorNode.detune 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.OscillatorNode.frequency 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.OscillatorNode.setPeriodicWave 📋	Chrome	10/1/2013	Safari	10/16/2014	380
api.OscillatorNode.type 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
api.PageTransitionEvent 📋	Firefox	11/29/2005	Safari	6/7/2010	1651
api.PageTransitionEvent.PageTransitionEvent 📋	Chrome	12/13/2011	Safari	7/25/2012	225
api.PageTransitionEvent.persisted 📋	Chrome	1/25/2010	Firefox	3/13/2012	778	Internet Explorer: The `persisted` property is known to be buggy in Internet Explorer. It is advised to check if `window.performance.navigation.type == 2` as well.
api.PannerNode 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.PannerNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.PannerNode.coneInnerAngle 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.coneOuterAngle 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.coneOuterGain 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.distanceModel 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.maxDistance 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.orientationX 📋	Chrome	7/20/2016	Safari	4/26/2021	1741
api.PannerNode.orientationY 📋	Chrome	7/20/2016	Safari	4/26/2021	1741
api.PannerNode.orientationZ 📋	Chrome	7/20/2016	Safari	4/26/2021	1741
api.PannerNode.panningModel 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.positionX 📋	Chrome	7/20/2016	Safari	4/26/2021	1741
api.PannerNode.positionY 📋	Chrome	7/20/2016	Safari	4/26/2021	1741
api.PannerNode.positionZ 📋	Chrome	7/20/2016	Safari	4/26/2021	1741
api.PannerNode.refDistance 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.rolloffFactor 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.setOrientation 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.PannerNode.setPosition 📋	Chrome	9/16/2011	Firefox	10/29/2013	774
api.Path2D 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.Path2D 📋	Chrome	7/16/2014	Safari	10/16/2014	92	Edge: Before Edge 79, the constructor for `Path2D` objects does not support invocation with a string consisting of SVG path data.
api.Path2D.addPath 📋	Firefox	12/1/2014	Chrome	7/24/2018	1331
api.Path2D.arc 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.arcTo 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.bezierCurveTo 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.closePath 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.ellipse 📋	Chrome	7/16/2014	Firefox	8/2/2016	748
api.Path2D.lineTo 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.moveTo 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.quadraticCurveTo 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.rect 📋	Chrome	7/16/2014	Safari	10/16/2014	92
api.Path2D.roundRect 📋	Chrome	3/1/2022	Firefox	4/11/2023	406
api.PaymentMethodChangeEvent 📋	Firefox	8/8/2017	Chrome	7/30/2019	721
api.PaymentMethodChangeEvent.PaymentMethodChangeEvent 📋	Firefox	8/8/2017	Chrome	7/30/2019	721
api.PaymentMethodChangeEvent.methodDetails 📋	Firefox	8/8/2017	Chrome	7/30/2019	721
api.PaymentMethodChangeEvent.methodName 📋	Firefox	8/8/2017	Chrome	7/30/2019	721
api.PaymentRequest 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.PaymentRequest 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.abort 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.canMakePayment 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.id 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.paymentmethodchange_event 📋	Firefox	8/8/2017	Chrome	7/30/2019	721
api.PaymentRequest.shippingAddress	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.shippingOption	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.shippingType	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.shippingaddresschange_event	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.shippingoptionchange_event	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequest.show 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequestUpdateEvent 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequestUpdateEvent.PaymentRequestUpdateEvent 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentRequestUpdateEvent.updateWith 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.complete 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.details 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.methodName 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.payerEmail 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.payerName 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.payerPhone 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.payerdetailchange_event 📋	Firefox	8/8/2017	Chrome	10/22/2019	805
api.PaymentResponse.requestId 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.retry 📋	Firefox	8/8/2017	Chrome	10/22/2019	805
api.PaymentResponse.shippingAddress 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.shippingOption 📋	Chrome	7/25/2017	Safari	4/12/2018	261
api.PaymentResponse.toJSON	Chrome	7/25/2017	Safari	4/12/2018	261
api.Performance 📋	Chrome	9/2/2010	Safari	10/16/2014	1505	Node.js: Only available as an internal instance.
api.Performance.clearMarks 📋	Chrome	8/20/2013	Safari	9/19/2017	1491
api.Performance.clearMeasures 📋	Chrome	8/20/2013	Safari	9/19/2017	1491
api.Performance.clearResourceTimings 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.Performance.eventCounts 📋	Chrome	8/25/2020	Safari	12/12/2025	1935
api.Performance.getEntries 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.Performance.getEntriesByName 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.Performance.getEntriesByType 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.Performance.interactionCount 📋	Firefox	10/14/2025	Chrome	1/13/2026	91
api.Performance.mark 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.Performance.mark.markOptions_parameter	Chrome	10/22/2019	Firefox	5/31/2022	952
api.Performance.mark.returns_performancemark	Chrome	10/22/2019	Firefox	5/31/2022	952
api.Performance.measure 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.Performance.measure.measureOptions_parameter	Chrome	9/10/2019	Firefox	7/26/2022	1050
api.Performance.measure.returns_performancemeasure	Chrome	10/22/2019	Firefox	7/26/2022	1008
api.Performance.navigation 📋	Chrome	3/8/2011	Safari	10/16/2014	1318
api.Performance.now 📋	Firefox	8/28/2012	Safari	10/16/2014	779	Firefox: In Firefox 57.0.4 the accuracy was reduced to 20 microseconds.Firefox: In Firefox 59 the accuracy was reduced to 2 milliseconds.Firefox: In Firefox 60 the accuracy was increased to 1 millisecond.Firefox for Android: In Firefox for Android 57.0.4 the accuracy was reduced to 20 microseconds.Firefox for Android: In Firefox for Android 59 the accuracy was reduced to 2 milliseconds.Firefox for Android: In Firefox for Android 60 the accuracy was increased to 1 millisecond.
api.Performance.resourcetimingbufferfull_event 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.Performance.setResourceTimingBufferSize 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.Performance.timeOrigin 📋	Firefox	4/19/2017	Safari	9/20/2021	1615
api.Performance.timing 📋	Chrome	9/2/2010	Safari	10/16/2014	1505	Node.js: Returns node specific timing object
api.Performance.toJSON 📋	Firefox	10/29/2013	Safari	4/26/2021	2736
api.PerformanceEntry 📋	Firefox	1/13/2015	Safari	9/19/2017	980	Node.js: Available as a part of the `perf_hooks` module.
api.PerformanceEntry.duration 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.PerformanceEntry.entryType 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.PerformanceEntry.name 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.PerformanceEntry.startTime 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.PerformanceEntry.toJSON 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceEntry.worker_support	Safari	9/19/2017	Firefox	5/9/2018	232	Node.js: Available as a part of the `perf_hooks` module.
api.PerformanceEventTiming 📋	Chrome	7/30/2019	Safari	12/12/2025	2327
api.PerformanceEventTiming.cancelable 📋	Chrome	7/30/2019	Safari	12/12/2025	2327
api.PerformanceEventTiming.interactionId 📋	Chrome	11/15/2021	Safari	12/12/2025	1488
api.PerformanceEventTiming.processingEnd 📋	Chrome	7/30/2019	Safari	12/12/2025	2327
api.PerformanceEventTiming.processingStart 📋	Chrome	7/30/2019	Safari	12/12/2025	2327
api.PerformanceEventTiming.target 📋	Chrome	8/25/2020	Safari	12/12/2025	1935
api.PerformanceEventTiming.toJSON 📋	Chrome	7/30/2019	Safari	12/12/2025	2327
api.PerformanceMark 📋	Chrome	7/9/2013	Safari	9/19/2017	1533	Node.js: Available as a part of the `perf_hooks` module.
api.PerformanceMark.PerformanceMark 📋	Chrome	7/30/2019	Firefox	5/31/2022	1036
api.PerformanceMark.detail 📋	Chrome	10/22/2019	Firefox	5/31/2022	952
api.PerformanceMeasure 📋	Chrome	2/21/2013	Safari	9/19/2017	1671	Node.js: Available as a part of the `perf_hooks` module.Node.js: Only available as an internal instance, but can be accessed via getting performance entries.
api.PerformanceMeasure.detail 📋	Chrome	10/22/2019	Firefox	7/26/2022	1008
api.PerformanceNavigation 📋	Chrome	3/8/2011	Safari	10/16/2014	1318
api.PerformanceNavigation.redirectCount 📋	Chrome	3/8/2011	Safari	10/16/2014	1318
api.PerformanceNavigation.toJSON 📋	Firefox	10/29/2013	Safari	4/26/2021	2736	Firefox: Before Firefox 70, this property could return incorrect values. See bug 1459711.Firefox for Android: Before Firefox for Android 79, this property could return incorrect values. See bug 1459711.
api.PerformanceNavigation.type 📋	Chrome	3/8/2011	Safari	10/16/2014	1318	Firefox: Before Firefox 70, this property could return incorrect values. See bug 1459711.Firefox for Android: Before Firefox for Android 79, this property could return incorrect values. See bug 1459711.
api.PerformanceNavigationTiming 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.domComplete 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.domContentLoadedEventEnd 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.domContentLoadedEventStart 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.domInteractive 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.loadEventEnd 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.loadEventStart 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.redirectCount 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.toJSON 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.type 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.unloadEventEnd 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceNavigationTiming.unloadEventStart 📋	Chrome	3/9/2017	Safari	9/20/2021	1656
api.PerformanceObserver 📋	Chrome	7/20/2016	Firefox	11/14/2017	482	Node.js: Available as a part of the `perf_hooks` module.
api.PerformanceObserver.PerformanceObserver 📋	Chrome	7/20/2016	Firefox	11/14/2017	482
api.PerformanceObserver.disconnect 📋	Chrome	7/20/2016	Firefox	11/14/2017	482
api.PerformanceObserver.observe 📋	Chrome	7/20/2016	Firefox	11/14/2017	482
api.PerformanceObserver.supportedEntryTypes_static 📋	Chrome	3/12/2019	Safari	9/19/2019	191
api.PerformanceObserver.takeRecords 📋	Chrome	3/6/2018	Safari	9/20/2021	1294
api.PerformanceObserver.worker_support	Safari	9/19/2017	Firefox	11/14/2017	56
api.PerformanceObserverEntryList 📋	Chrome	7/20/2016	Firefox	11/14/2017	482	Node.js: Available as a part of the `perf_hooks` module.Node.js: Only available as an internal instance, but can be accessed via the first parameter of the `PerformanceObserver` constructor.
api.PerformanceObserverEntryList.getEntries 📋	Chrome	7/20/2016	Firefox	11/14/2017	482
api.PerformanceObserverEntryList.getEntriesByName 📋	Chrome	7/20/2016	Firefox	11/14/2017	482
api.PerformanceObserverEntryList.getEntriesByType 📋	Chrome	7/20/2016	Firefox	11/14/2017	482
api.PerformancePaintTiming 📋	Chrome	7/25/2017	Safari	4/26/2021	1371
api.PerformancePaintTiming.first-contentful-paint 📋	Chrome	7/25/2017	Safari	4/26/2021	1371
api.PerformancePaintTiming.toJSON 📋	Chrome	7/25/2017	Safari	4/26/2021	1371
api.PerformanceResourceTiming 📋	Chrome	8/20/2013	Safari	9/19/2017	1491	Node.js: Available as a part of the `perf_hooks` module.Node.js: Available as a part of the `perf_hooks` module.
api.PerformanceResourceTiming.connectEnd 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.connectStart 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.decodedBodySize 📋	Firefox	3/8/2016	Safari	3/27/2023	2575
api.PerformanceResourceTiming.domainLookupEnd 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.domainLookupStart 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.encodedBodySize 📋	Firefox	3/8/2016	Safari	3/27/2023	2575
api.PerformanceResourceTiming.fetchStart 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.initiatorType 📋	Firefox	1/13/2015	Safari	9/19/2017	980	Node.js: Since v18.2.0, the value can be returned by `toJSON()`, but can not accessed via property getter.
api.PerformanceResourceTiming.nextHopProtocol 📋	Firefox	3/8/2016	Safari	9/19/2017	560
api.PerformanceResourceTiming.redirectEnd 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.redirectStart 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.requestStart 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.responseEnd 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.responseStart 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.secureConnectionStart 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.serverTiming 📋	Chrome	3/6/2018	Safari	3/27/2023	1847
api.PerformanceResourceTiming.toJSON 📋	Firefox	1/13/2015	Safari	9/19/2017	980
api.PerformanceResourceTiming.transferSize 📋	Firefox	3/8/2016	Safari	3/27/2023	2575
api.PerformanceResourceTiming.workerStart 📋	Chrome	10/13/2015	Firefox	1/23/2018	833
api.PerformanceResourceTiming.worker_support	Chrome	5/19/2015	Safari	9/17/2018	1217
api.PerformanceServerTiming 📋	Chrome	3/6/2018	Safari	3/27/2023	1847
api.PerformanceServerTiming.description 📋	Chrome	3/6/2018	Safari	3/27/2023	1847
api.PerformanceServerTiming.duration 📋	Chrome	3/6/2018	Safari	3/27/2023	1847
api.PerformanceServerTiming.name 📋	Chrome	3/6/2018	Safari	3/27/2023	1847
api.PerformanceServerTiming.toJSON 📋	Chrome	3/6/2018	Safari	3/27/2023	1847
api.PerformanceTiming 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.connectEnd 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.connectStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.domComplete 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.domContentLoadedEventEnd 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.domContentLoadedEventStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.domInteractive 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.domLoading 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.domainLookupEnd 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.domainLookupStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.fetchStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.loadEventEnd 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.loadEventStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.navigationStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.redirectEnd 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.redirectStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.requestStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.responseEnd 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.responseStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.secureConnectionStart 📋	Chrome	9/2/2010	Firefox	9/28/2017	2583
api.PerformanceTiming.toJSON 📋	Firefox	10/29/2013	Safari	3/27/2017	1245
api.PerformanceTiming.unloadEventEnd 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PerformanceTiming.unloadEventStart 📋	Chrome	9/2/2010	Safari	10/16/2014	1505
api.PeriodicWave 📋	Chrome	10/1/2013	Safari	10/16/2014	380
api.PeriodicWave.PeriodicWave 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.PermissionStatus 📋	Chrome	5/19/2015	Safari	9/12/2022	2673
api.PermissionStatus.change_event 📋	Chrome	5/19/2015	Safari	3/27/2023	2869	Safari: The `onchange` event handler is supported, but the event never fires. See bug 259432.Safari on iOS: The `onchange` event handler is supported, but the event never fires. See bug 259432.WebView on iOS: The `onchange` event handler is supported, but the event never fires. See bug 259432.
api.PermissionStatus.name 📋	Firefox	10/5/2021	Safari	9/12/2022	342
api.PermissionStatus.state 📋	Chrome	7/21/2015	Safari	9/12/2022	2610
api.Permissions 📋	Chrome	5/19/2015	Safari	9/12/2022	2673
api.Permissions.permission_camera	Chrome	1/23/2018	Firefox	10/29/2024	2471
api.Permissions.permission_geolocation	Chrome	5/19/2015	Safari	9/12/2022	2673
api.Permissions.permission_microphone	Chrome	1/23/2018	Firefox	10/29/2024	2471
api.Permissions.permission_notifications	Chrome	5/19/2015	Safari	3/27/2023	2869	Firefox: Alias for the `push` permission (returns the same value).Firefox for Android: Alias for the `push` permission (returns the same value).
api.Permissions.permission_push	Chrome	5/19/2015	Safari	9/18/2023	3044	Firefox: Alias for the `notifications` permission (returns the same value).Firefox for Android: Alias for the `notifications` permission (returns the same value).
api.Permissions.permission_screen-wake-lock 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Firefox: The value is recognized, but has no effect.Firefox for Android: The value is recognized, but has no effect.
api.Permissions.permission_storage-access 📋	Firefox	8/29/2023	Safari	12/12/2025	836
api.Permissions.query 📋	Chrome	5/19/2015	Safari	9/12/2022	2673
api.Plugin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Plugin.description 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Plugin.filename 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Plugin.item 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: Starting with version 59, method parameters are required instead of optional.Chrome Android: Starting with version 59, method parameters are required instead of optional.Quest Browser: Starting with version 5.0, method parameters are required instead of optional.Samsung Internet: Starting with Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Starting with version 59, method parameters are required instead of optional.
api.Plugin.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Plugin.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Plugin.namedItem 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: Starting with version 59, method parameters are required instead of optional.Chrome Android: Starting with version 59, method parameters are required instead of optional.Quest Browser: Starting with version 5.0, method parameters are required instead of optional.Samsung Internet: Starting with Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Starting with version 59, method parameters are required instead of optional.
api.PluginArray 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.PluginArray.item 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: Since Chrome 59, method parameters are required instead of optional.Chrome Android: Since Chrome Android 59, method parameters are required instead of optional.Edge: Since Edge 79, method parameters are required instead of optional.Quest Browser: Since Quest Browser 5.0, method parameters are required instead of optional.Opera: Since Opera 46, method parameters are required instead of optional.Opera Android: Since Opera Android 43, method parameters are required instead of optional.Samsung Internet: Since Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Since WebView Android 59, method parameters are required instead of optional.
api.PluginArray.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.PluginArray.namedItem 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: Since Chrome 59, method parameters are required instead of optional.Chrome Android: Since Chrome Android 59, method parameters are required instead of optional.Edge: Since Edge 79, method parameters are required instead of optional.Quest Browser: Since Quest Browser 5.0, method parameters are required instead of optional.Opera: Since Opera 46, method parameters are required instead of optional.Opera Android: Since Opera Android 43, method parameters are required instead of optional.Samsung Internet: Since Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Since WebView Android 59, method parameters are required instead of optional.
api.PluginArray.refresh 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Since Chrome 59, method parameters are required instead of optional.Chrome Android: Since Chrome Android 59, method parameters are required instead of optional.Edge: Since Edge 79, method parameters are required instead of optional.Quest Browser: Since Quest Browser 5.0, method parameters are required instead of optional.Opera: Since Opera 46, method parameters are required instead of optional.Opera Android: Since Opera Android 43, method parameters are required instead of optional.Samsung Internet: Since Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Since WebView Android 59, method parameters are required instead of optional.
api.PointerEvent 📋	Chrome	12/1/2016	Safari	9/19/2019	1022	Internet Explorer: See MSDN Pointer events updates.
api.PointerEvent.PointerEvent 📋	Chrome	12/1/2016	Safari	9/19/2019	1022	Internet Explorer: See MSDN Pointer events updates.
api.PointerEvent.PointerEvent.options_altitudeAngle_parameter	Chrome	10/20/2020	Safari	12/11/2024	1513
api.PointerEvent.PointerEvent.options_azimuthAngle_parameter	Chrome	10/20/2020	Safari	12/11/2024	1513
api.PointerEvent.altitudeAngle 📋	Chrome	10/20/2020	Safari	12/11/2024	1513
api.PointerEvent.azimuthAngle 📋	Chrome	10/20/2020	Safari	12/11/2024	1513
api.PointerEvent.getCoalescedEvents 📋	Chrome	4/19/2017	Safari	12/11/2024	2793	Firefox for Android: The method always returns an empty array, regardless of the user's actions.
api.PointerEvent.getPredictedEvents 📋	Chrome	9/10/2019	Safari	12/11/2024	1919
api.PointerEvent.height 📋	Chrome	12/1/2016	Safari	9/19/2019	1022	Internet Explorer: Returns values in screen pixels instead of CSS document pixels.
api.PointerEvent.isPrimary 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.PointerEvent.pointerId 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.PointerEvent.pointerType 📋	Chrome	12/1/2016	Safari	9/19/2019	1022	Internet Explorer: Returns an integer enumeration instead of a string.
api.PointerEvent.pointerType.fractional_coordinates	Chrome	1/23/2018	Safari	12/12/2025	2880	Chrome: `movementX` and `movementY` are not fractional, see bug 41364801.Chrome Android: `movementX` and `movementY` are not fractional, see bug 41364801.Edge: `movementX` and `movementY` are not fractional, see bug 41364801.Edge: Only `clientX`, `clientY`, `pageX` and `pageY` are fractional.Internet Explorer: Only `clientX`, `clientY`, `pageX` and `pageY` are fractional.Quest Browser: `movementX` and `movementY` are not fractional, see bug 41364801.Opera: `movementX` and `movementY` are not fractional, see bug 41364801.Opera Android: `movementX` and `movementY` are not fractional, see bug 41364801.Samsung Internet: `movementX` and `movementY` are not fractional, see bug 41364801.WebView Android: `movementX` and `movementY` are not fractional, see bug 41364801.
api.PointerEvent.pressure 📋	Chrome	12/1/2016	Safari	9/19/2019	1022	Internet Explorer: Returns 0 instead of 0.5 on hardware that doesn't support pressure.
api.PointerEvent.tangentialPressure 📋	Chrome	3/9/2017	Safari	9/19/2019	924
api.PointerEvent.tiltX 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.PointerEvent.tiltY 📋	Chrome	12/1/2016	Safari	9/19/2019	1022
api.PointerEvent.twist 📋	Chrome	3/9/2017	Safari	9/19/2019	924
api.PointerEvent.width 📋	Chrome	12/1/2016	Safari	9/19/2019	1022	Internet Explorer: Returns values in screen pixels instead of CSS document pixels.
api.PopStateEvent 📋	Chrome	1/25/2010	Safari	7/25/2012	912
api.PopStateEvent.PopStateEvent 📋	Chrome	12/13/2011	Safari	7/25/2012	225
api.PopStateEvent.state 📋	Chrome	1/25/2010	Safari	7/25/2012	912
api.ProcessingInstruction 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.ProcessingInstruction.sheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.ProcessingInstruction.target 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.ProgressEvent 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ProgressEvent.ProgressEvent 📋	Chrome	12/13/2011	Firefox	1/8/2013	392
api.ProgressEvent.lengthComputable 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ProgressEvent.loaded 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ProgressEvent.total 📋	Safari	3/18/2008	Firefox	6/30/2009	469
api.ProgressEvent.worker_support	Chrome	12/1/2015	Firefox	6/13/2017	560	Chrome: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Chrome Android: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Edge: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Quest Browser: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Opera: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Opera Android: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Samsung Internet: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.WebView Android: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.
api.PromiseRejectionEvent 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280
api.PromiseRejectionEvent.PromiseRejectionEvent 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280
api.PromiseRejectionEvent.promise 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280
api.PromiseRejectionEvent.reason 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280
api.PublicKeyCredential 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.authenticatorAttachment 📋	Chrome	2/1/2022	Firefox	11/21/2023	658
api.PublicKeyCredential.getClientCapabilities_static 📋	Safari	3/5/2024	Firefox	2/4/2025	336
api.PublicKeyCredential.getClientExtensionResults 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.isConditionalMediationAvailable_static 📋	Safari	9/12/2022	Firefox	10/24/2023	407
api.PublicKeyCredential.isUserVerifyingPlatformAuthenticatorAvailable_static 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.parseCreationOptionsFromJSON_static 📋	Firefox	10/24/2023	Safari	3/31/2025	524
api.PublicKeyCredential.parseRequestOptionsFromJSON_static 📋	Firefox	10/24/2023	Safari	3/31/2025	524
api.PublicKeyCredential.rawId 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.response 📋	Firefox	5/9/2018	Safari	9/19/2019	498	Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.toJSON 📋	Firefox	10/24/2023	Safari	3/31/2025	524
api.PushEvent 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushEvent.PushEvent 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushEvent.data 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.getSubscription 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.permissionState 📋	Chrome	7/21/2015	Safari	9/12/2022	2610	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.subscribe 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Chrome: The `options` parameter with a `applicationServerKey` value is required.Chrome Android: The `options` parameter with a `applicationServerKey` value is required.Edge: The `options` parameter with a `applicationServerKey` value is required.Firefox: From Firefox 72 onwards, can only be called in response to a user gesture such as a `click` event.Firefox for Android: From Firefox Android 79 onwards, can only be called in response to a user gesture such as a `click` event.Quest Browser: The `options` parameter with a `applicationServerKey` value is required.Opera Android: The `options` parameter with a `applicationServerKey` value is required.Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.Samsung Internet: The `options` parameter with a `applicationServerKey` value is required.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.supportedContentEncodings_static 📋	Chrome	7/25/2017	Firefox	1/7/2025	2723	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.arrayBuffer 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.blob 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.bytes 📋	Firefox	7/9/2024	Chrome	1/14/2025	189
api.PushMessageData.json 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.text 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.endpoint 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.expirationTime 📋	Chrome	7/25/2017	Safari	9/12/2022	1875	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.getKey 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.options 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.toJSON 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.unsubscribe 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionChangeEvent 📋	Safari	9/12/2022	Chrome	6/24/2025	1016	Firefox: Before Firefox 137, The `pushsubscriptionchange` event is fired, but does not have the `oldSubscription` and `newSubscription` properties. See bug 1635524.Firefox for Android: Before Firefox for Android 137, The `pushsubscriptionchange` event is fired, but does not have the `oldSubscription` and `newSubscription` properties. See bug 1635524.Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionChangeEvent.PushSubscriptionChangeEvent 📋	Safari	10/24/2022	Chrome	6/24/2025	974	Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionChangeEvent.newSubscription 📋	Safari	9/12/2022	Chrome	6/24/2025	1016	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionChangeEvent.oldSubscription 📋	Safari	9/12/2022	Chrome	6/24/2025	1016	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionOptions 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionOptions.applicationServerKey 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.RTCCertificate 📋	Firefox	11/3/2015	Safari	3/25/2019	1238
api.RTCCertificate.expires 📋	Firefox	11/3/2015	Safari	3/25/2019	1238
api.RTCCertificate.getFingerprints 📋	Chrome	9/5/2017	Firefox	4/29/2025	2793
api.RTCDTMFSender 📋	Chrome	5/21/2013	Safari	3/24/2020	2499
api.RTCDTMFSender.canInsertDTMF 📋	Chrome	5/21/2013	Firefox	8/6/2024	4095
api.RTCDTMFSender.insertDTMF 📋	Chrome	5/21/2013	Safari	3/24/2020	2499
api.RTCDTMFSender.toneBuffer 📋	Chrome	5/21/2013	Safari	3/24/2020	2499
api.RTCDTMFSender.tonechange_event 📋	Chrome	5/21/2013	Safari	3/24/2020	2499
api.RTCDTMFToneChangeEvent 📋	Chrome	5/21/2013	Safari	3/24/2020	2499
api.RTCDTMFToneChangeEvent.RTCDTMFToneChangeEvent 📋	Chrome	5/21/2013	Safari	3/24/2020	2499
api.RTCDTMFToneChangeEvent.tone 📋	Chrome	5/21/2013	Safari	3/24/2020	2499
api.RTCDataChannel 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.binaryType 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.binaryType.arraybuffer_value	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.binaryType.blob_value	Firefox	6/25/2013	Chrome	9/17/2024	4102
api.RTCDataChannel.bufferedAmount 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.bufferedAmountLowThreshold 📋	Chrome	10/13/2015	Safari	9/19/2017	707
api.RTCDataChannel.bufferedamountlow_event 📋	Firefox	1/26/2016	Safari	9/19/2017	602	Chrome: The default for `rtcpMuxPolicy` is `require`.Chrome Android: The default for `rtcpMuxPolicy` is `require`.Edge: The default for `rtcpMuxPolicy` is `require`.Quest Browser: The default for `rtcpMuxPolicy` is `require`.Opera: The default for `rtcpMuxPolicy` is `require`.Opera Android: The default for `rtcpMuxPolicy` is `require`.Samsung Internet: The default for `rtcpMuxPolicy` is `require`.WebView Android: The default for `rtcpMuxPolicy` is `require`.
api.RTCDataChannel.close 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.close_event 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.closing_event 📋	Chrome	4/7/2020	Firefox	10/14/2025	2016
api.RTCDataChannel.error_event 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.id 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCDataChannel.label 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.maxPacketLifeTime 📋	Chrome	1/25/2017	Firefox	9/5/2018	588
api.RTCDataChannel.maxRetransmits 📋	Chrome	10/1/2013	Firefox	9/5/2018	1800
api.RTCDataChannel.message_event 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.negotiated 📋	Chrome	10/1/2013	Firefox	7/9/2019	2107
api.RTCDataChannel.open_event 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.ordered 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCDataChannel.protocol 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCDataChannel.readyState 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.send 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannel.transferable 📋	Safari	9/20/2021	Firefox	10/14/2025	1485
api.RTCDataChannelEvent 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDataChannelEvent.RTCDataChannelEvent 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCDataChannelEvent.channel 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCDtlsTransport 📋	Chrome	1/29/2019	Safari	3/14/2022	1140
api.RTCDtlsTransport.iceTransport 📋	Chrome	1/29/2019	Firefox	4/16/2024	1904
api.RTCDtlsTransport.state 📋	Chrome	1/29/2019	Safari	3/14/2022	1140
api.RTCDtlsTransport.statechange_event	Chrome	1/29/2019	Safari	3/14/2022	1140
api.RTCEncodedAudioFrame 📋	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_contributingSources_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_payloadType_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_rtpTimestamp_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_sequenceNumber_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_synchronizationSource_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.data 📋	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedAudioFrame.getMetadata 📋	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedAudioFrame.getMetadata.return_object_property_contributingSources 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_payloadType 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_rtpTimestamp 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_sequenceNumber 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_synchronizationSource 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedAudioFrame.timestamp	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedVideoFrame 📋	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_contributingSources_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_dependencies_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_frameId_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_height_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_payloadType_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_spatialIndex_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_synchronizationSource_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_temporalIndex_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_width_parameter 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.data 📋	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedVideoFrame.getMetadata 📋	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedVideoFrame.getMetadata.return_object_property_contributingSources 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_dependencies 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_frameId 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_height 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_payloadType 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_spatialIndex 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_synchronizationSource 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_temporalIndex 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_width 📋	Chrome	7/23/2024	Firefox	11/11/2025	476
api.RTCEncodedVideoFrame.timestamp	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCEncodedVideoFrame.type 📋	Chrome	10/20/2020	Firefox	8/29/2023	1043
api.RTCIceCandidate 📋	Chrome	11/6/2012	Safari	9/19/2017	1778
api.RTCIceCandidate.RTCIceCandidate 📋	Chrome	11/6/2012	Safari	9/19/2017	1778	Firefox: Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property.Firefox: Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property.Firefox for Android: Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property.Firefox for Android: Before Firefox 68, the constructor's `candidateInfo` parameter is required and the `candidateInfo` object must have a `candidate` property.
api.RTCIceCandidate.address 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.candidate 📋	Chrome	11/6/2012	Safari	9/19/2017	1778	Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox 126, the property was not read-only.
api.RTCIceCandidate.component 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.foundation 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.port 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.priority 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.protocol 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.relatedAddress 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.relatedPort 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.sdpMLineIndex 📋	Chrome	11/6/2012	Safari	9/19/2017	1778	Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox 126, the property was not read-only.
api.RTCIceCandidate.sdpMid 📋	Chrome	11/6/2012	Safari	9/19/2017	1778	Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox 126, the property was not read-only.
api.RTCIceCandidate.tcpType 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.toJSON 📋	Firefox	2/4/2014	Safari	9/19/2017	1323
api.RTCIceCandidate.type 📋	Chrome	4/23/2019	Firefox	5/14/2024	1848
api.RTCIceCandidate.usernameFragment 📋	Chrome	4/23/2019	Safari	4/26/2021	734	Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox for Android 126, the property was not read-only.
api.RTCIceTransport 📋	Safari	9/19/2017	Firefox	4/16/2024	2401
api.RTCIceTransport.gatheringState 📋	Safari	9/19/2017	Firefox	4/16/2024	2401
api.RTCIceTransport.gatheringstatechange_event 📋	Chrome	6/4/2019	Firefox	4/16/2024	1778
api.RTCIceTransport.state 📋	Safari	9/19/2017	Firefox	4/16/2024	2401
api.RTCIceTransport.statechange_event 📋	Chrome	6/4/2019	Firefox	4/16/2024	1778
api.RTCPeerConnection 📋	Firefox	1/26/2016	Safari	9/19/2017	602
api.RTCPeerConnection.RTCPeerConnection 📋	Firefox	1/26/2016	Safari	9/19/2017	602	Chrome: Before Chrome 63, the default value for the `configuration.rtcpMuxPolicy` parameter is `"negotiate"` instead of `"required"`.Chrome Android: Before Chrome Android 63, the default value for the `configuration.rtcpMuxPolicy` parameter is `"negotiate"` instead of `"required"`.Quest Browser: Before Quest Browser 5.0, the default value for the `configuration.rtcpMuxPolicy` parameter is `"negotiate"` instead of `"required"`.Opera: Before Opera 50, the default value for the `configuration.rtcpMuxPolicy` parameter is `"negotiate"` instead of `"required"`.Opera Android: Before Opera Android 46, the default value for the `configuration.rtcpMuxPolicy` parameter is `"negotiate"` instead of `"required"`.Samsung Internet: Before Samsung Internet 8.0, the default value for the `configuration.rtcpMuxPolicy` parameter is `"negotiate"` instead of `"required"`.WebView Android: Before WebView Android 63, the default value for the `configuration.rtcpMuxPolicy` parameter is `"negotiate"` instead of `"required"`.
api.RTCPeerConnection.RTCPeerConnection.configuration_bundlePolicy_parameter 📋	Chrome	4/14/2015	Safari	9/19/2017	889
api.RTCPeerConnection.RTCPeerConnection.configuration_certificates_parameter 📋	Firefox	11/3/2015	Safari	3/25/2019	1238
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.credential_parameter 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.urls_parameter 📋	Firefox	3/31/2015	Safari	9/19/2017	903
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.username_parameter 📋	Firefox	8/6/2013	Safari	9/19/2017	1505
api.RTCPeerConnection.RTCPeerConnection.configuration_iceTransportPolicy_parameter 📋	Firefox	11/3/2015	Safari	9/19/2017	686
api.RTCPeerConnection.addIceCandidate 📋	Chrome	1/10/2013	Safari	9/19/2017	1713	Firefox: Starting in Firefox 68, the `candidate` parameter is optional when calling `addIceCandidate()`. A `null` value for `candidate` indicates no more candidates will be sent, while an empty `candidate` string indicates that no more candidates will be sent for the current generation of candidates.Firefox for Android: Starting in Firefox 68, the `candidate` parameter is optional when calling `addIceCandidate()`. A `null` value for `candidate` indicates no more candidates will be sent, while an empty `candidate` string indicates that no more candidates will be sent for the current generation of candidates.
api.RTCPeerConnection.addIceCandidate.returns_promise	Firefox	3/31/2015	Safari	9/19/2017	903
api.RTCPeerConnection.addTrack 📋	Firefox	6/25/2013	Chrome	1/23/2018	1673
api.RTCPeerConnection.addTransceiver 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCPeerConnection.addTransceiver.init_direction_parameter	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCPeerConnection.addTransceiver.init_sendEncodings_parameter	Chrome	9/4/2018	Firefox	2/14/2023	1624
api.RTCPeerConnection.addTransceiver.init_streams_parameter	Firefox	3/13/2018	Safari	3/25/2019	377
api.RTCPeerConnection.canTrickleIceCandidates 📋	Firefox	6/7/2016	Safari	3/14/2022	2106
api.RTCPeerConnection.close 📋	Chrome	11/6/2012	Safari	9/19/2017	1778
api.RTCPeerConnection.connectionState 📋	Safari	9/19/2017	Firefox	5/9/2023	2058
api.RTCPeerConnection.connectionstatechange_event 📋	Safari	9/19/2017	Firefox	5/9/2023	2058
api.RTCPeerConnection.createAnswer 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.createAnswer.returns_promise	Firefox	3/31/2015	Safari	9/19/2017	903
api.RTCPeerConnection.createDataChannel 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.createOffer 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.createOffer.returns_promise	Firefox	3/31/2015	Safari	9/19/2017	903
api.RTCPeerConnection.currentLocalDescription 📋	Firefox	6/25/2013	Chrome	10/16/2018	1939
api.RTCPeerConnection.currentRemoteDescription 📋	Safari	9/19/2017	Chrome	10/16/2018	392
api.RTCPeerConnection.datachannel_event 📋	Chrome	2/21/2013	Safari	9/19/2017	1671
api.RTCPeerConnection.generateCertificate_static 📋	Firefox	6/25/2013	Safari	3/25/2019	2099
api.RTCPeerConnection.getConfiguration 📋	Firefox	6/25/2013	Chrome	10/16/2018	1939
api.RTCPeerConnection.getReceivers 📋	Firefox	12/1/2014	Safari	9/19/2017	1023
api.RTCPeerConnection.getSenders 📋	Firefox	12/1/2014	Chrome	1/23/2018	1149
api.RTCPeerConnection.getStats 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.getStats.returns_promise	Firefox	3/31/2015	Safari	9/19/2017	903
api.RTCPeerConnection.getStats.selector_parameter	Firefox	2/4/2014	Chrome	5/29/2018	1575
api.RTCPeerConnection.getTransceivers 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCPeerConnection.iceConnectionState 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.RTCPeerConnection.iceGatheringState 📋	Chrome	2/21/2013	Safari	9/19/2017	1671
api.RTCPeerConnection.icecandidate_event 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.iceconnectionstatechange_event 📋	Chrome	7/9/2013	Safari	9/19/2017	1533
api.RTCPeerConnection.icegatheringstatechange_event 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCPeerConnection.localDescription 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.negotiationneeded_event 📋	Chrome	1/10/2013	Safari	9/19/2017	1713	Firefox: Although the `onnegotiationneeded` property is supported, the `negotiationneeded` event is never fired.Firefox for Android: Although the `onnegotiationneeded` property is supported, the `negotiationneeded` event is never fired.
api.RTCPeerConnection.pendingLocalDescription 📋	Firefox	6/25/2013	Chrome	10/16/2018	1939
api.RTCPeerConnection.pendingRemoteDescription 📋	Firefox	6/25/2013	Chrome	10/16/2018	1939
api.RTCPeerConnection.remoteDescription 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.removeTrack 📋	Firefox	6/25/2013	Chrome	1/23/2018	1673
api.RTCPeerConnection.restartIce 📋	Chrome	9/10/2019	Safari	4/26/2021	594
api.RTCPeerConnection.sctp 📋	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCPeerConnection.setConfiguration 📋	Chrome	1/20/2016	Firefox	4/5/2022	2267
api.RTCPeerConnection.setLocalDescription 📋	Chrome	1/10/2013	Safari	9/19/2017	1713	Firefox: Firefox does not support descriptions of type `pranswer`.Firefox for Android: Firefox does not support descriptions of type `pranswer`.
api.RTCPeerConnection.setLocalDescription.description_parameter_optional	Chrome	2/4/2020	Safari	4/26/2021	447
api.RTCPeerConnection.setLocalDescription.returns_promise	Firefox	3/31/2015	Safari	9/19/2017	903
api.RTCPeerConnection.setRemoteDescription 📋	Chrome	1/10/2013	Safari	9/19/2017	1713
api.RTCPeerConnection.setRemoteDescription.implicit_rollback	Firefox	10/22/2019	Safari	3/14/2022	874
api.RTCPeerConnection.setRemoteDescription.returns_promise	Firefox	3/31/2015	Safari	9/19/2017	903
api.RTCPeerConnection.signalingState 📋	Chrome	3/26/2013	Safari	9/19/2017	1638
api.RTCPeerConnection.signalingstatechange_event 📋	Chrome	7/9/2013	Safari	9/19/2017	1533	Firefox: Although the `onsignalingstatechange` property is supported, the `signalingstatechange` event is not fired as an `Event` object. See bug 1075133.Firefox for Android: Although the `onsignalingstatechange` property is supported, the `signalingstatechange` event is not fired as an `Event` object. See bug 1075133.
api.RTCPeerConnection.track_event 📋	Firefox	6/25/2013	Chrome	1/23/2018	1673
api.RTCPeerConnectionIceEvent 📋	Firefox	9/17/2013	Safari	9/17/2018	1826
api.RTCPeerConnectionIceEvent.RTCPeerConnectionIceEvent 📋	Firefox	9/17/2013	Safari	9/17/2018	1826
api.RTCPeerConnectionIceEvent.candidate 📋	Chrome	1/10/2013	Safari	9/17/2018	2076
api.RTCRtpReceiver 📋	Firefox	12/1/2014	Safari	9/19/2017	1023
api.RTCRtpReceiver.getCapabilities_static 📋	Chrome	6/5/2017	Firefox	5/9/2023	2164
api.RTCRtpReceiver.getContributingSources 📋	Chrome	6/5/2017	Safari	3/25/2019	658
api.RTCRtpReceiver.getContributingSources.audioLevel 📋	Firefox	3/13/2018	Safari	3/25/2019	377
api.RTCRtpReceiver.getContributingSources.audio_tracks_supported	Chrome	6/5/2017	Safari	3/25/2019	658
api.RTCRtpReceiver.getContributingSources.source 📋	Chrome	6/5/2017	Safari	3/25/2019	658
api.RTCRtpReceiver.getContributingSources.timestamp 📋	Chrome	6/5/2017	Safari	3/25/2019	658	Firefox: Starting in version 60, the `timestamp` is correctly computed based on the window's `Performance` time, rather than `Date.getTime()`.Firefox for Android: Starting in version 60, the `timestamp` is correctly computed based on the window's `Performance` time, rather than `Date.getTime()`.
api.RTCRtpReceiver.getContributingSources.video_tracks_supported	Chrome	3/12/2019	Firefox	7/9/2019	119
api.RTCRtpReceiver.getParameters 📋	Chrome	6/5/2017	Firefox	7/9/2024	2591
api.RTCRtpReceiver.getParameters.return_object_property_codecs 📋	Safari	9/19/2017	Firefox	7/9/2024	2485
api.RTCRtpReceiver.getStats 📋	Firefox	8/8/2017	Safari	3/25/2019	594
api.RTCRtpReceiver.getSynchronizationSources 📋	Firefox	3/13/2018	Safari	3/25/2019	377
api.RTCRtpReceiver.getSynchronizationSources.audio_tracks_supported	Firefox	3/13/2018	Safari	3/25/2019	377
api.RTCRtpReceiver.getSynchronizationSources.video_tracks_supported	Chrome	3/12/2019	Firefox	7/9/2019	119
api.RTCRtpReceiver.track 📋	Firefox	12/1/2014	Safari	9/19/2017	1023
api.RTCRtpReceiver.transform 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpReceiver.transport 📋	Chrome	6/5/2017	Safari	3/14/2022	1743
api.RTCRtpScriptTransform 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpScriptTransform.RTCRtpScriptTransform 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpScriptTransformer 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpScriptTransformer.options 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpScriptTransformer.readable 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpScriptTransformer.sendKeyFrameRequest 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpScriptTransformer.writable 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpSender 📋	Firefox	12/1/2014	Chrome	1/23/2018	1149
api.RTCRtpSender.dtmf 📋	Firefox	3/7/2017	Safari	3/24/2020	1113
api.RTCRtpSender.getCapabilities_static 📋	Chrome	9/4/2018	Firefox	5/9/2023	1708
api.RTCRtpSender.getParameters 📋	Firefox	4/26/2016	Chrome	7/24/2018	819
api.RTCRtpSender.getParameters.return_object_property_codecs 📋	Safari	9/19/2017	Firefox	7/9/2024	2485	Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.getParameters.return_object_property_degradationPreference 📋	Safari	3/25/2019	Firefox	4/29/2025	2227
api.RTCRtpSender.getParameters.return_object_property_encodings 📋	Firefox	4/26/2016	Safari	3/25/2019	1063
api.RTCRtpSender.getParameters.return_object_property_headerExtensions 📋	Firefox	4/26/2016	Chrome	9/4/2018	861	Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.getParameters.return_object_property_rtcp 📋	Firefox	4/26/2016	Safari	9/20/2021	1973	Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.getParameters.return_object_property_transactionId 📋	Chrome	9/4/2018	Firefox	2/14/2023	1624
api.RTCRtpSender.getStats 📋	Firefox	8/8/2017	Safari	3/25/2019	594
api.RTCRtpSender.replaceTrack 📋	Firefox	12/1/2014	Chrome	3/6/2018	1191
api.RTCRtpSender.setParameters 📋	Safari	9/19/2017	Firefox	12/11/2018	448	Firefox: Before Firefox 64, changes to parameters that should update live would not do so.Firefox for Android: Before Firefox for Android 64, changes to parameters that should update live would not do so.
api.RTCRtpSender.setParameters.parameters_codecs_parameter 📋	Chrome	9/4/2018	Firefox	7/9/2024	2135	Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.setParameters.parameters_degradationPreference_parameter 📋	Safari	3/25/2019	Firefox	4/29/2025	2227
api.RTCRtpSender.setParameters.parameters_encodings_parameter 📋	Firefox	4/26/2016	Chrome	9/4/2018	861
api.RTCRtpSender.setParameters.parameters_encodings_parameter.active	Safari	4/12/2018	Firefox	2/14/2023	1769
api.RTCRtpSender.setParameters.parameters_encodings_parameter.maxBitrate 📋	Firefox	4/26/2016	Chrome	9/4/2018	861
api.RTCRtpSender.setParameters.parameters_encodings_parameter.maxFramerate 📋	Safari	9/19/2017	Firefox	5/31/2022	1715	Firefox: Zero is treated as 'no fps limit' (see bug 1611957).Firefox for Android: Zero is treated as 'no fps limit' (see bug 1611957).
api.RTCRtpSender.setParameters.parameters_encodings_parameter.priority 📋	Firefox	4/26/2016	Chrome	9/4/2018	861	Firefox: In version 110 and later the default priority is `low`.Firefox for Android: In version 110 and later the default priority is `low`.
api.RTCRtpSender.setParameters.parameters_encodings_parameter.scaleResolutionDownBy 📋	Firefox	4/26/2016	Chrome	4/23/2019	1092
api.RTCRtpSender.setParameters.parameters_headerExtensions_parameter 📋	Firefox	4/26/2016	Safari	3/25/2019	1063	Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.setParameters.parameters_rtcp_parameter 📋	Firefox	4/26/2016	Safari	9/20/2021	1973	Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.setParameters.parameters_transactionId_parameter 📋	Chrome	9/4/2018	Firefox	2/14/2023	1624
api.RTCRtpSender.setStreams 📋	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCRtpSender.track 📋	Firefox	12/1/2014	Chrome	1/23/2018	1149
api.RTCRtpSender.transform 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCRtpSender.transport 📋	Chrome	6/4/2019	Safari	3/14/2022	1014
api.RTCRtpTransceiver 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCRtpTransceiver.currentDirection 📋	Firefox	3/13/2018	Safari	3/25/2019	377
api.RTCRtpTransceiver.direction 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCRtpTransceiver.mid 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCRtpTransceiver.receiver 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCRtpTransceiver.sender 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCRtpTransceiver.setCodecPreferences 📋	Chrome	7/30/2019	Firefox	7/9/2024	1806
api.RTCRtpTransceiver.stop 📋	Safari	9/19/2017	Chrome	1/19/2021	1218
api.RTCRtpTransceiver.stopped	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCSctpTransport 📋	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCSctpTransport.maxChannels 📋	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCSctpTransport.maxMessageSize 📋	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCSctpTransport.state 📋	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCSctpTransport.statechange_event	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCSctpTransport.transport 📋	Chrome	7/30/2019	Firefox	5/9/2023	1379
api.RTCSessionDescription 📋	Chrome	11/6/2012	Safari	9/19/2017	1778
api.RTCSessionDescription.RTCSessionDescription	Chrome	11/6/2012	Safari	9/19/2017	1778
api.RTCSessionDescription.sdp 📋	Chrome	11/6/2012	Safari	9/19/2017	1778
api.RTCSessionDescription.toJSON 📋	Firefox	9/17/2013	Safari	9/19/2017	1463
api.RTCSessionDescription.type 📋	Chrome	11/6/2012	Safari	9/19/2017	1778
api.RTCStatsReport 📋	Firefox	2/4/2014	Safari	9/19/2017	1323
api.RTCStatsReport.@@iterator	Firefox	8/2/2016	Safari	9/19/2017	413
api.RTCStatsReport.entries 📋	Firefox	8/2/2016	Safari	9/19/2017	413
api.RTCStatsReport.forEach 📋	Firefox	2/4/2014	Safari	9/19/2017	1323
api.RTCStatsReport.get 📋	Firefox	2/4/2014	Safari	9/19/2017	1323
api.RTCStatsReport.has 📋	Firefox	2/4/2014	Safari	9/19/2017	1323
api.RTCStatsReport.keys 📋	Firefox	8/2/2016	Safari	9/19/2017	413
api.RTCStatsReport.size 📋	Firefox	8/2/2016	Safari	9/19/2017	413
api.RTCStatsReport.type_candidate-pair 📋	Firefox	4/29/2014	Safari	9/19/2017	1239
api.RTCStatsReport.type_candidate-pair.bytesReceived 📋	Chrome	4/19/2017	Firefox	9/28/2017	162
api.RTCStatsReport.type_candidate-pair.bytesSent 📋	Chrome	4/19/2017	Firefox	9/28/2017	162
api.RTCStatsReport.type_candidate-pair.id 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_candidate-pair.localCandidateId 📋	Firefox	4/29/2014	Safari	9/19/2017	1239
api.RTCStatsReport.type_candidate-pair.nominated 📋	Chrome	4/19/2017	Firefox	9/28/2017	162
api.RTCStatsReport.type_candidate-pair.remoteCandidateId 📋	Firefox	4/29/2014	Safari	9/19/2017	1239
api.RTCStatsReport.type_candidate-pair.responsesReceived 📋	Chrome	4/19/2017	Firefox	8/19/2025	3044
api.RTCStatsReport.type_candidate-pair.state 📋	Firefox	4/29/2014	Safari	9/19/2017	1239
api.RTCStatsReport.type_candidate-pair.timestamp 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_candidate-pair.totalRoundTripTime 📋	Safari	9/19/2017	Firefox	8/19/2025	2891
api.RTCStatsReport.type_candidate-pair.transportId 📋	Chrome	4/19/2017	Firefox	9/28/2017	162
api.RTCStatsReport.type_candidate-pair.type 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_codec 📋	Chrome	2/4/2020	Firefox	3/8/2022	763
api.RTCStatsReport.type_codec.channels 📋	Chrome	5/19/2020	Firefox	3/8/2022	658
api.RTCStatsReport.type_codec.clockRate 📋	Chrome	2/4/2020	Firefox	3/8/2022	763
api.RTCStatsReport.type_codec.id 📋	Chrome	2/4/2020	Firefox	3/8/2022	763
api.RTCStatsReport.type_codec.mimeType 📋	Chrome	2/4/2020	Firefox	3/8/2022	763
api.RTCStatsReport.type_codec.payloadType 📋	Chrome	2/4/2020	Firefox	3/8/2022	763
api.RTCStatsReport.type_codec.sdpFmtpLine 📋	Chrome	5/19/2020	Firefox	3/8/2022	658
api.RTCStatsReport.type_codec.timestamp 📋	Chrome	2/4/2020	Firefox	3/8/2022	763
api.RTCStatsReport.type_codec.type 📋	Chrome	2/4/2020	Firefox	3/8/2022	763
api.RTCStatsReport.type_data-channel 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.bytesReceived 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.bytesSent 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.id 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.label 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.messagesReceived 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.messagesSent 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.protocol 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.state 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.timestamp 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_data-channel.type 📋	Chrome	2/4/2020	Firefox	7/28/2020	175
api.RTCStatsReport.type_inbound-rtp 📋	Firefox	2/4/2014	Chrome	12/10/2019	2135
api.RTCStatsReport.type_inbound-rtp.bytesReceived 📋	Firefox	2/4/2014	Safari	3/24/2020	2240
api.RTCStatsReport.type_inbound-rtp.concealedSamples 📋	Chrome	10/20/2020	Firefox	8/23/2022	672
api.RTCStatsReport.type_inbound-rtp.concealmentEvents 📋	Chrome	10/20/2020	Firefox	10/18/2022	728
api.RTCStatsReport.type_inbound-rtp.fecPacketsDiscarded 📋	Chrome	4/7/2020	Firefox	10/18/2022	924
api.RTCStatsReport.type_inbound-rtp.fecPacketsReceived 📋	Chrome	4/7/2020	Firefox	10/18/2022	924
api.RTCStatsReport.type_inbound-rtp.headerBytesReceived 📋	Chrome	2/4/2020	Firefox	10/18/2022	987
api.RTCStatsReport.type_inbound-rtp.id 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_inbound-rtp.insertedSamplesForDeceleration 📋	Chrome	10/20/2020	Firefox	10/18/2022	728
api.RTCStatsReport.type_inbound-rtp.jitter 📋	Firefox	2/4/2014	Safari	3/24/2020	2240
api.RTCStatsReport.type_inbound-rtp.jitterBufferDelay 📋	Chrome	10/20/2020	Firefox	8/23/2022	672
api.RTCStatsReport.type_inbound-rtp.jitterBufferEmittedCount 📋	Chrome	10/20/2020	Firefox	8/23/2022	672
api.RTCStatsReport.type_inbound-rtp.kind 📋	Firefox	10/23/2018	Safari	9/16/2020	694
api.RTCStatsReport.type_inbound-rtp.mid 📋	Chrome	9/2/2022	Firefox	2/4/2025	886
api.RTCStatsReport.type_inbound-rtp.packetsDiscarded 📋	Chrome	9/21/2021	Safari	3/14/2022	174
api.RTCStatsReport.type_inbound-rtp.packetsLost 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_inbound-rtp.packetsReceived 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_inbound-rtp.removedSamplesForAcceleration 📋	Chrome	10/20/2020	Firefox	10/18/2022	728
api.RTCStatsReport.type_inbound-rtp.silentConcealedSamples 📋	Chrome	10/20/2020	Firefox	8/23/2022	672
api.RTCStatsReport.type_inbound-rtp.ssrc 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_inbound-rtp.timestamp 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_inbound-rtp.totalAudioEnergy 📋	Chrome	10/20/2020	Firefox	10/18/2022	728
api.RTCStatsReport.type_inbound-rtp.totalSamplesDuration 📋	Chrome	10/20/2020	Firefox	10/18/2022	728
api.RTCStatsReport.type_inbound-rtp.totalSamplesReceived 📋	Chrome	10/20/2020	Firefox	8/23/2022	672
api.RTCStatsReport.type_inbound-rtp.trackIdentifier 📋	Chrome	9/2/2022	Safari	3/27/2023	206
api.RTCStatsReport.type_inbound-rtp.type 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_local-candidate 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_local-candidate.candidateType 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_local-candidate.id 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_local-candidate.port 📋	Safari	3/25/2019	Chrome	2/4/2020	316
api.RTCStatsReport.type_local-candidate.priority 📋	Safari	3/25/2019	Chrome	2/4/2020	316
api.RTCStatsReport.type_local-candidate.protocol 📋	Firefox	12/11/2018	Chrome	2/4/2020	420
api.RTCStatsReport.type_local-candidate.timestamp 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_local-candidate.transportId 📋	Firefox	7/22/2014	Chrome	2/4/2020	2023
api.RTCStatsReport.type_local-candidate.type 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_media-source 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_media-source.id 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_media-source.kind 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_media-source.timestamp 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_media-source.trackIdentifier 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_media-source.type 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_outbound-rtp 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_outbound-rtp.bytesSent 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_outbound-rtp.codecId 📋	Safari	9/19/2017	Firefox	3/8/2022	1631
api.RTCStatsReport.type_outbound-rtp.headerBytesSent 📋	Chrome	2/4/2020	Firefox	5/3/2022	819
api.RTCStatsReport.type_outbound-rtp.id 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_outbound-rtp.kind 📋	Firefox	10/23/2018	Safari	9/16/2020	694
api.RTCStatsReport.type_outbound-rtp.nackCount 📋	Firefox	8/8/2017	Safari	3/14/2022	1679
api.RTCStatsReport.type_outbound-rtp.packetsSent 📋	Firefox	2/4/2014	Safari	3/24/2020	2240
api.RTCStatsReport.type_outbound-rtp.retransmittedBytesSent 📋	Chrome	2/4/2020	Firefox	5/3/2022	819
api.RTCStatsReport.type_outbound-rtp.retransmittedPacketsSent 📋	Chrome	2/4/2020	Firefox	5/3/2022	819
api.RTCStatsReport.type_outbound-rtp.ssrc 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_outbound-rtp.timestamp 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_outbound-rtp.type 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_peer-connection 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_peer-connection.dataChannelsClosed 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_peer-connection.dataChannelsOpened 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_peer-connection.id 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_peer-connection.timestamp 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_peer-connection.type 📋	Chrome	2/4/2020	Firefox	5/9/2023	1190
api.RTCStatsReport.type_remote-candidate 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_remote-candidate.candidateType 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_remote-candidate.id 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_remote-candidate.port 📋	Safari	3/25/2019	Chrome	2/4/2020	316
api.RTCStatsReport.type_remote-candidate.priority 📋	Safari	3/25/2019	Chrome	2/4/2020	316
api.RTCStatsReport.type_remote-candidate.protocol 📋	Firefox	12/11/2018	Chrome	2/4/2020	420
api.RTCStatsReport.type_remote-candidate.timestamp 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_remote-candidate.transportId 📋	Firefox	7/22/2014	Chrome	2/4/2020	2023
api.RTCStatsReport.type_remote-candidate.type 📋	Firefox	1/7/2020	Safari	3/24/2020	77
api.RTCStatsReport.type_remote-inbound-rtp 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_remote-inbound-rtp.codecId 📋	Safari	9/19/2017	Firefox	3/8/2022	1631
api.RTCStatsReport.type_remote-inbound-rtp.id 📋	Firefox	1/7/2020	Safari	4/26/2021	475
api.RTCStatsReport.type_remote-inbound-rtp.kind 📋	Firefox	10/23/2018	Safari	9/16/2020	694
api.RTCStatsReport.type_remote-inbound-rtp.localId 📋	Firefox	1/7/2020	Safari	4/26/2021	475
api.RTCStatsReport.type_remote-inbound-rtp.roundTripTime 📋	Chrome	2/4/2020	Firefox	1/11/2022	707
api.RTCStatsReport.type_remote-inbound-rtp.ssrc 📋	Firefox	2/4/2014	Chrome	2/4/2020	2191
api.RTCStatsReport.type_remote-inbound-rtp.timestamp 📋	Firefox	1/7/2020	Safari	4/26/2021	475
api.RTCStatsReport.type_remote-inbound-rtp.type 📋	Firefox	1/7/2020	Safari	4/26/2021	475
api.RTCStatsReport.type_remote-outbound-rtp 📋	Firefox	2/4/2014	Chrome	5/25/2021	2667
api.RTCStatsReport.type_remote-outbound-rtp.codecId 📋	Safari	9/19/2017	Firefox	3/8/2022	1631
api.RTCStatsReport.type_remote-outbound-rtp.kind 📋	Firefox	10/23/2018	Chrome	5/25/2021	945
api.RTCStatsReport.type_remote-outbound-rtp.ssrc 📋	Firefox	2/4/2014	Chrome	5/25/2021	2667
api.RTCStatsReport.values	Firefox	8/2/2016	Safari	9/19/2017	413
api.RTCTrackEvent 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCTrackEvent.RTCTrackEvent 📋	Firefox	4/26/2016	Chrome	1/23/2018	637
api.RTCTrackEvent.receiver 📋	Firefox	12/1/2014	Safari	9/19/2017	1023
api.RTCTrackEvent.streams 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCTrackEvent.track 📋	Firefox	6/25/2013	Safari	9/19/2017	1547
api.RTCTrackEvent.transceiver 📋	Safari	9/19/2017	Chrome	9/4/2018	350
api.RTCTransformEvent 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RTCTransformEvent.transformer 📋	Safari	3/14/2022	Chrome	9/30/2025	1296
api.RadioNodeList 📋	Chrome	7/31/2012	Firefox	10/14/2014	805
api.RadioNodeList.value 📋	Chrome	7/31/2012	Firefox	10/14/2014	805
api.Range 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Starting with Firefox 13, the `Range` object throws a `DOMException` as defined in DOM 4, instead of a `RangeException` defined in prior specifications.Firefox for Android: Starting with Firefox for Android 14, the `Range` object throws a `DOMException` as defined in DOM 4, instead of a `RangeException` defined in prior specifications.
api.Range.Range 📋	Chrome	8/20/2013	Safari	10/16/2014	422
api.Range.cloneContents 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.cloneRange 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.collapse 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.collapse.toStart_parameter_optional	Safari	6/23/2003	Firefox	10/29/2013	3781	Internet Explorer: Optional but defaults to `true`.
api.Range.collapsed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.commonAncestorContainer 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.compareBoundaryPoints 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.comparePoint 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Range.createContextualFragment 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.deleteContents 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.detach 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Since Chrome 37, this method does nothing, as specified. See bug 40362748.Chrome Android: Since Chrome Android 37, this method does nothing, as specified. See bug 40362748.Firefox: Since Firefox 15, this method does nothing, as specified. See bug 702948.Firefox for Android: Since Firefox for Android 15, this method does nothing, as specified. See bug 702948.Quest Browser: Since Quest Browser 5.0, this method does nothing, as specified. See bug 40362748.Opera: Since Opera 24, this method does nothing, as specified. See bug 40362748.Opera Android: Since Opera 24, this method does nothing, as specified. See bug 40362748.Safari: Since Safari 10, this method does nothing, see bug 148454.Safari on iOS: Since Safari on iOS 10, this method does nothing, see bug 148454.Samsung Internet: Since Samsung Internet 3.0, this method does nothing, as specified. See bug 40362748.WebView Android: Since WebView Android 37, this method does nothing, as specified. See bug 40362748.WebView on iOS: Since WebView on iOS 10, this method does nothing, see bug 148454.
api.Range.endContainer 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.endOffset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.extractContents 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.getBoundingClientRect 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.Range.getClientRects 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.Range.insertNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.intersectsNode 📋	Safari	10/26/2007	Firefox	11/20/2012	1852
api.Range.isPointInRange 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Range.selectNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.selectNodeContents 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.setEnd 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.setEndAfter 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.setEndBefore 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.setStart 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.setStartAfter 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.setStartBefore 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.startContainer 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.startOffset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.surroundContents 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Range.toString 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.ReadableStream 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351	Node.js: Available as a part of the `stream/web` module.
api.ReadableStream.ReadableStream 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ReadableStream.cancel 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351
api.ReadableStream.getReader 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351
api.ReadableStream.locked 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ReadableStream.pipeThrough 📋	Safari	3/27/2017	Firefox	6/28/2022	1919
api.ReadableStream.pipeTo 📋	Safari	3/27/2017	Firefox	5/3/2022	1863
api.ReadableStream.tee 📋	Chrome	7/20/2016	Firefox	1/29/2019	923	Node.js: Before 18.10.0 or 16.18.0, teeing a readable byte stream is not supported.
api.ReadableStreamDefaultController 📋	Chrome	7/20/2016	Firefox	1/29/2019	923	Deno: `ReadableStreamDefaultController` is not exposed on the global scope.Node.js: Available as a part of the `stream/web` module.
api.ReadableStreamDefaultController.close 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ReadableStreamDefaultController.desiredSize 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ReadableStreamDefaultController.enqueue 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ReadableStreamDefaultController.error 📋	Chrome	7/20/2016	Firefox	1/29/2019	923
api.ReadableStreamDefaultReader 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351	Deno: `ReadableStreamDefaultReader` is not exposed on the global scope.Node.js: Available as a part of the `stream/web` module.
api.ReadableStreamDefaultReader.ReadableStreamDefaultReader 📋	Safari	9/20/2016	Firefox	5/3/2022	2051
api.ReadableStreamDefaultReader.cancel 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351
api.ReadableStreamDefaultReader.closed 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351
api.ReadableStreamDefaultReader.read 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351
api.ReadableStreamDefaultReader.releaseLock 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351
api.ReadableStreamDefaultReader.releaseLock.reject_pending_read_request	Firefox	6/28/2022	Safari	9/18/2023	447	Chrome: Before version 105, `releaseLock()` throws instead of rejecting.Chrome Android: Before version 105, `releaseLock()` throws instead of rejecting.Edge: Before version 105, `releaseLock()` throws instead of rejecting.Opera: Before version 91, `releaseLock()` throws instead of rejecting.Opera Android: Before version 72, `releaseLock()` throws instead of rejecting.Samsung Internet: Before version 20.0, `releaseLock()` throws instead of rejecting.WebView Android: Before version 105, `releaseLock()` throws instead of rejecting.
api.Report 📋	Chrome	9/4/2018	Safari	3/27/2023	1665	Firefox: Worker support added in version 77
api.Report.body 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.Report.toJSON	Chrome	9/4/2018	Safari	3/27/2023	1665
api.Report.type 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.Report.url 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.ReportBody 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.ReportBody.toJSON	Chrome	9/4/2018	Safari	3/27/2023	1665
api.ReportingObserver 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.ReportingObserver.ReportingObserver 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.ReportingObserver.disconnect 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.ReportingObserver.observe 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.ReportingObserver.takeRecords 📋	Chrome	9/4/2018	Safari	3/27/2023	1665
api.Request 📋	Chrome	4/14/2015	Safari	3/27/2017	713	Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.Request.Request 📋	Chrome	1/21/2015	Safari	3/27/2017	796	Chrome: From Chrome 47, default values for the `init` argument's properties changed. `mode` defaults to `same-origin` (from `no-cors`). `credentials` defaults to `include` (from `same-origin`). `redirect` defaults to `follow` (from `manual`).Chrome Android: From Chrome Android 47, default values for the `init` argument's properties changed. `mode` defaults to `same-origin` (from `no-cors`). `credentials` defaults to `include` (from `same-origin`). `redirect` defaults to `follow` (from `manual`).Deno: Fetching with a `"manual"` redirect mode does not result in a `"opaqueredirect"` response, but a regular response.Quest Browser: From Quest Browser 5.0, default values for the `init` argument's properties changed. `mode` defaults to `same-origin` (from `no-cors`). `credentials` defaults to `include` (from `same-origin`). `redirect` defaults to `follow` (from `manual`).Samsung Internet: From Samsung Internet 5.0, default values for the `init` argument's properties changed. `mode` defaults to `same-origin` (from `no-cors`). `credentials` defaults to `include` (from `same-origin`). `redirect` defaults to `follow` (from `manual`).WebView Android: From WebView Android 47, default values for the `init` argument's properties changed. `mode` defaults to `same-origin` (from `no-cors`). `credentials` defaults to `include` (from `same-origin`). `redirect` defaults to `follow` (from `manual`).
api.Request.Request.cross_origin_stripped	Safari	3/27/2017	Chrome	9/4/2018	526
api.Request.Request.init_keepalive_parameter 📋	Chrome	4/17/2018	Firefox	11/26/2024	2415
api.Request.Request.init_priority_parameter 📋	Chrome	4/26/2022	Firefox	10/29/2024	917
api.Request.Request.init_referrer_parameter 📋	Chrome	12/1/2015	Safari	3/27/2017	482
api.Request.arrayBuffer 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Request.blob 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Request.bodyUsed 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Request.bytes 📋	Firefox	7/9/2024	Chrome	1/14/2025	189
api.Request.cache 📋	Firefox	8/2/2016	Chrome	1/23/2018	539
api.Request.cache.only-if-cached	Firefox	11/15/2016	Chrome	1/23/2018	434
api.Request.clone 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Request.credentials 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Request.credentials.default_same-origin	Firefox	6/26/2018	Safari	3/25/2019	272
api.Request.destination 📋	Safari	3/27/2017	Firefox	6/26/2018	456
api.Request.formData 📋	Firefox	7/2/2015	Safari	4/26/2021	2125	Safari: The method exists but always rejects with `NotSupportedError`. See bug 215671.Safari on iOS: The method exists but always rejects with `NotSupportedError`. See bug 215671.WebView on iOS: The method exists but always rejects with `NotSupportedError`. See bug 215671.
api.Request.headers 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Request.integrity 📋	Chrome	10/13/2015	Safari	3/27/2017	531
api.Request.json 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Request.keepalive 📋	Chrome	4/17/2018	Firefox	11/26/2024	2415
api.Request.method 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Request.mode 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Request.mode.navigate_mode	Chrome	3/2/2016	Safari	3/27/2017	390
api.Request.redirect 📋	Chrome	10/13/2015	Safari	3/27/2017	531	Deno: Fetching with a `"manual"` redirect mode does not result in a `"opaqueredirect"` response, but a regular response.
api.Request.referrer 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Request.referrerPolicy 📋	Firefox	6/7/2016	Safari	3/27/2017	293
api.Request.signal 📋	Firefox	11/14/2017	Safari	3/25/2019	496
api.Request.text 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Request.url 📋	Chrome	1/21/2015	Safari	3/27/2017	796	Chrome: Fragment support added in Chrome 59.Chrome Android: Fragment support added in Chrome Android 59.Quest Browser: Fragment support added in Quest Browser 5.0.Opera: Fragment support added in Opera 46.Opera Android: Fragment support added in Opera 46.Samsung Internet: Fragment support added in Samsung Internet 7.0.WebView Android: Fragment support added in WebView Android 59.
api.ResizeObserver 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserver.ResizeObserver 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserver.disconnect 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserver.observe 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserver.observe.options_box_parameter	Firefox	9/3/2019	Safari	3/14/2022	923	Firefox: Before version 93, the `device-pixel-content-box` value is not supported.Firefox for Android: Before version 93, the `device-pixel-content-box` value is not supported.
api.ResizeObserver.unobserve 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserverEntry 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserverEntry.borderBoxSize 📋	Chrome	7/27/2020	Safari	3/14/2022	595	Firefox: Implemented as a single object representing a content box size, rather than an array of content box size objects.Firefox for Android: Implemented as a single object representing a content box size, rather than an array of content box size objects.
api.ResizeObserverEntry.contentBoxSize 📋	Chrome	7/27/2020	Safari	3/14/2022	595	Firefox: Implemented as a single object representing a content box size, rather than an array of content box size objects.Firefox for Android: Implemented as a single object representing a content box size, rather than an array of content box size objects.
api.ResizeObserverEntry.contentRect 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserverEntry.target 📋	Chrome	1/23/2018	Safari	3/24/2020	791
api.ResizeObserverSize 📋	Firefox	9/3/2019	Safari	3/14/2022	923
api.ResizeObserverSize.blockSize 📋	Firefox	9/3/2019	Safari	3/14/2022	923
api.ResizeObserverSize.inlineSize 📋	Firefox	9/3/2019	Safari	3/14/2022	923
api.Response 📋	Chrome	4/14/2015	Safari	3/27/2017	713	Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.Response.Response 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Response.Response.accept_readablestream	Firefox	7/2/2015	Safari	3/27/2017	634
api.Response.Response.body_parameter_optional	Chrome	1/21/2015	Firefox	3/13/2018	1147
api.Response.arrayBuffer 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Response.blob 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Response.body 📋	Chrome	5/19/2015	Firefox	1/29/2019	1351
api.Response.bodyUsed 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Response.bytes 📋	Firefox	7/9/2024	Chrome	1/14/2025	189
api.Response.clone 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Response.error_static 📋	Chrome	5/19/2015	Safari	3/27/2017	678
api.Response.formData 📋	Firefox	7/2/2015	Safari	4/26/2021	2125	Safari: The method exists but always rejects with `NotSupportedError`. See bug 215671.Safari on iOS: The method exists but always rejects with `NotSupportedError`. See bug 215671.WebView on iOS: The method exists but always rejects with `NotSupportedError`. See bug 215671.
api.Response.headers 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Response.json 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Response.json_static 📋	Chrome	9/2/2022	Safari	9/18/2023	381
api.Response.ok 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Response.redirect_static 📋	Firefox	7/2/2015	Safari	3/27/2017	634
api.Response.redirected 📋	Firefox	9/20/2016	Safari	3/27/2017	188
api.Response.status 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Response.statusText 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Response.text 📋	Chrome	4/14/2015	Safari	3/27/2017	713
api.Response.type 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.Response.url 📋	Chrome	1/21/2015	Safari	3/27/2017	796
api.SVGAElement 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGAElement.href 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.SVGAElement.hreflang 📋	Firefox	6/26/2018	Chrome	1/13/2026	2758
api.SVGAElement.rel 📋	Firefox	6/26/2018	Chrome	4/29/2025	2499
api.SVGAElement.relList 📋	Firefox	6/26/2018	Chrome	4/29/2025	2499
api.SVGAElement.target 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGAElement.type 📋	Firefox	6/26/2018	Chrome	1/13/2026	2758
api.SVGAngle 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAngle.convertToSpecifiedUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAngle.newValueSpecifiedUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAngle.unitType 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAngle.value 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAngle.valueAsString 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAngle.valueInSpecifiedUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimateElement 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.SVGAnimateMotionElement 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.SVGAnimateTransformElement 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.SVGAnimatedAngle 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedAngle.animVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedAngle.baseVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedBoolean 📋	Firefox	6/17/2008	Chrome	9/2/2010	807
api.SVGAnimatedBoolean.animVal 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGAnimatedBoolean.baseVal 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGAnimatedEnumeration 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedEnumeration.animVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedEnumeration.baseVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedInteger 📋	Firefox	6/17/2008	Chrome	9/2/2010	807
api.SVGAnimatedInteger.animVal 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGAnimatedInteger.baseVal 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGAnimatedLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedLength.animVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedLength.baseVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedLengthList 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedLengthList.animVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedLengthList.baseVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedNumber 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedNumber.animVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedNumber.baseVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedNumberList 📋	Firefox	11/29/2005	Chrome	9/2/2010	1738
api.SVGAnimatedNumberList.animVal 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGAnimatedNumberList.baseVal 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGAnimatedPreserveAspectRatio 📋	Firefox	11/29/2005	Safari	6/7/2010	1651
api.SVGAnimatedPreserveAspectRatio.animVal 📋	Chrome	5/25/2010	Firefox	6/25/2013	1127
api.SVGAnimatedPreserveAspectRatio.baseVal 📋	Chrome	5/25/2010	Firefox	6/25/2013	1127
api.SVGAnimatedRect 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedRect.animVal 📋	Safari	10/26/2007	Firefox	8/28/2012	1768
api.SVGAnimatedRect.baseVal 📋	Safari	10/26/2007	Firefox	8/28/2012	1768
api.SVGAnimatedString 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedString.animVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedString.baseVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedTransformList 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedTransformList.animVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimatedTransformList.baseVal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGAnimationElement 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.SVGAnimationElement.beginElement 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGAnimationElement.beginElementAt 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGAnimationElement.beginEvent_event 📋	Chrome	5/20/2014	Safari	12/12/2025	4224	Chrome: The `onbegin` event handler property is not supported.Chrome Android: The `onbegin` event handler property is not supported.Firefox: The `onbegin` event handler property is not supported.Firefox for Android: The `onbegin` event handler property is not supported.Opera: The `onbegin` event handler property is not supported.Opera Android: The `onbegin` event handler property is not supported.Safari: The `onbegin` event handler property is not supported.Safari on iOS: The `onbegin` event handler property is not supported.Samsung Internet: The `onbegin` event handler property is not supported.WebView Android: The `onbegin` event handler property is not supported.WebView on iOS: The `onbegin` event handler property is not supported.
api.SVGAnimationElement.endElement 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGAnimationElement.endElementAt 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGAnimationElement.endEvent_event 📋	Chrome	5/20/2014	Firefox	10/5/2021	2695	Chrome: The `onend` event handler property is not supported.Chrome Android: The `onend` event handler property is not supported.Firefox: The `onend` event handler property is not supported.Firefox for Android: The `onend` event handler property is not supported.Opera: The `onend` event handler property is not supported.Opera Android: The `onend` event handler property is not supported.Safari: The `onend` event handler property is not supported.Safari on iOS: The `onend` event handler property is not supported.Samsung Internet: The `onend` event handler property is not supported.WebView Android: The `onend` event handler property is not supported.WebView on iOS: The `onend` event handler property is not supported.
api.SVGAnimationElement.getCurrentTime 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGAnimationElement.getSimpleDuration 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGAnimationElement.getStartTime 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGAnimationElement.repeatEvent_event 📋	Chrome	5/20/2014	Safari	12/12/2025	4224	Chrome: The `onrepeat` event handler property is not supported.Chrome Android: The `onrepeat` event handler property is not supported.Firefox: The `onrepeat` event handler property is not supported.Firefox for Android: The `onrepeat` event handler property is not supported.Opera: The `onrepeat` event handler property is not supported.Opera Android: The `onrepeat` event handler property is not supported.Safari: The `onrepeat` event handler property is not supported.Safari on iOS: The `onrepeat` event handler property is not supported.Samsung Internet: The `onrepeat` event handler property is not supported.WebView Android: The `onrepeat` event handler property is not supported.WebView on iOS: The `onrepeat` event handler property is not supported.
api.SVGAnimationElement.requiredExtensions 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGAnimationElement.systemLanguage 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGAnimationElement.targetElement 📋	Chrome	5/21/2009	Firefox	3/22/2011	670
api.SVGCircleElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGCircleElement.cx 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGCircleElement.cy 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGCircleElement.r 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGClipPathElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGClipPathElement.clipPathUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGClipPathElement.transform 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGComponentTransferFunctionElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGComponentTransferFunctionElement.amplitude 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGComponentTransferFunctionElement.exponent 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGComponentTransferFunctionElement.intercept 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGComponentTransferFunctionElement.offset 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGComponentTransferFunctionElement.slope 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGComponentTransferFunctionElement.tableValues 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGComponentTransferFunctionElement.type 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGDefsElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGDescElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGElement.autofocus 📋	Chrome	12/10/2019	Firefox	2/14/2023	1162	Firefox: Only supported on `SVGGraphicsElement`.Firefox for Android: Only supported on `SVGGraphicsElement`.
api.SVGElement.blur 📋	Safari	10/26/2007	Firefox	1/24/2017	3378
api.SVGElement.className 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGElement.dataset 📋	Safari	7/20/2011	Firefox	1/24/2017	2015
api.SVGElement.error_event 📋	Firefox	11/29/2005	Safari	7/25/2012	2430
api.SVGElement.focus 📋	Safari	10/26/2007	Firefox	1/24/2017	3378
api.SVGElement.focus.options_preventScroll_parameter	Firefox	7/9/2019	Safari	9/20/2021	804
api.SVGElement.load_event 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Firefox: See bug 620002 for implementation status of the standard `load` event.Firefox for Android: See bug 620002 for implementation status of the standard `load` event.
api.SVGElement.nonce 📋	Chrome	9/5/2017	Safari	3/14/2022	1651
api.SVGElement.ownerSVGElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGElement.style 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGElement.tabIndex 📋	Chrome	7/16/2014	Firefox	1/24/2017	923
api.SVGElement.viewportElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGEllipseElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGEllipseElement.cx 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGEllipseElement.cy 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGEllipseElement.rx 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGEllipseElement.ry 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGFEBlendElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.in2 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.mode 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEBlendElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.type 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.values 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEColorMatrixElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEComponentTransferElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEComponentTransferElement.height 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEComponentTransferElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEComponentTransferElement.result 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEComponentTransferElement.width 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEComponentTransferElement.x 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEComponentTransferElement.y 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFECompositeElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.in2 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.k1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.k2 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.k3 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.k4 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.operator 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFECompositeElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.bias 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.divisor 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.edgeMode 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.kernelMatrix 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.kernelUnitLengthX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.kernelUnitLengthY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.orderX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.orderY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.preserveAlpha 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.targetX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.targetY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEConvolveMatrixElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.diffuseConstant 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.kernelUnitLengthX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.kernelUnitLengthY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.surfaceScale 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDiffuseLightingElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.in2 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.scale 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.xChannelSelector 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDisplacementMapElement.yChannelSelector 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDistantLightElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDistantLightElement.azimuth 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDistantLightElement.elevation 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEDropShadowElement 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.dx 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.dy 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.height 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.in1 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.result 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.setStdDeviation 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.stdDeviationX 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.stdDeviationY 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.width 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.x 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEDropShadowElement.y 📋	Chrome	8/2/2011	Firefox	6/10/2014	1043
api.SVGFEFloodElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEFloodElement.height 📋	Chrome	5/25/2010	Firefox	1/13/2015	1694
api.SVGFEFloodElement.result 📋	Chrome	5/25/2010	Firefox	1/13/2015	1694
api.SVGFEFloodElement.width 📋	Chrome	5/25/2010	Firefox	1/13/2015	1694
api.SVGFEFloodElement.x 📋	Chrome	5/25/2010	Firefox	1/13/2015	1694
api.SVGFEFloodElement.y 📋	Chrome	5/25/2010	Firefox	1/13/2015	1694
api.SVGFEFuncAElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEFuncBElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEFuncGElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEFuncRElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEGaussianBlurElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEGaussianBlurElement.height 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEGaussianBlurElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEGaussianBlurElement.result 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEGaussianBlurElement.setStdDeviation 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEGaussianBlurElement.stdDeviationX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEGaussianBlurElement.stdDeviationY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEGaussianBlurElement.width 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEGaussianBlurElement.x 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEGaussianBlurElement.y 📋	Chrome	5/25/2010	Firefox	4/29/2014	1435
api.SVGFEImageElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEImageElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEImageElement.href 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEImageElement.preserveAspectRatio 📋	Chrome	5/25/2010	Firefox	6/25/2013	1127
api.SVGFEImageElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEImageElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEImageElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEImageElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeNodeElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMergeNodeElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.operator 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.radiusX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.radiusY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEMorphologyElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.dx 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.dy 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEOffsetElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEPointLightElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEPointLightElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEPointLightElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFEPointLightElement.z 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.kernelUnitLengthX 📋	Firefox	6/17/2008	Safari	3/5/2024	5740
api.SVGFESpecularLightingElement.kernelUnitLengthY 📋	Firefox	6/17/2008	Safari	3/5/2024	5740
api.SVGFESpecularLightingElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.specularConstant 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.specularExponent 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.surfaceScale 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpecularLightingElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.limitingConeAngle 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.pointsAtX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.pointsAtY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.pointsAtZ 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.specularExponent 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFESpotLightElement.z 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETileElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETileElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETileElement.in1 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETileElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETileElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETileElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETileElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.baseFrequencyX 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.baseFrequencyY 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.numOctaves 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.result 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.seed 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.stitchTiles 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.type 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFETurbulenceElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement.filterUnits 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement.height 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement.href 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement.primitiveUnits 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement.width 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement.x 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGFilterElement.y 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGForeignObjectElement 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGForeignObjectElement.height 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.SVGForeignObjectElement.width 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.SVGForeignObjectElement.x 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.SVGForeignObjectElement.y 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.SVGGElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGGeometryElement 📋	Chrome	1/25/2017	Safari	9/17/2018	600	Chrome: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Chrome Android: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Edge: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Firefox: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Firefox for Android: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Internet Explorer: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Opera: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Opera Android: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Safari: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Safari on iOS: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.Samsung Internet: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.WebView Android: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.WebView on iOS: The `SVGGeometryElement` interface itself is not present, but some of its members are available on the `SVGPathElement` interface.
api.SVGGeometryElement.getPointAtLength 📋	Chrome	1/25/2017	Safari	9/17/2018	600	Chrome: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Chrome Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Edge: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Firefox: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Firefox for Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Internet Explorer: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Opera: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Opera Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Safari: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Safari on iOS: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Samsung Internet: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.WebView Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.WebView on iOS: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.
api.SVGGeometryElement.getTotalLength 📋	Chrome	1/25/2017	Safari	9/17/2018	600	Chrome: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Chrome Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Edge: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Firefox: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Firefox for Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Internet Explorer: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Opera: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Opera Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Safari: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Safari on iOS: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Samsung Internet: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.WebView Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.WebView on iOS: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.
api.SVGGeometryElement.isPointInFill 📋	Chrome	2/20/2014	Firefox	9/3/2019	2021	Chrome: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Chrome Android: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Edge: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Quest Browser: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Opera: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Opera Android: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.WebView Android: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.
api.SVGGeometryElement.isPointInFill.point_parameter_DOMPoint	Safari	9/17/2018	Chrome	4/29/2025	2416
api.SVGGeometryElement.isPointInStroke 📋	Chrome	2/20/2014	Firefox	9/3/2019	2021	Chrome: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Chrome Android: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Edge: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Quest Browser: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Opera: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.Opera Android: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.WebView Android: The element this method is called for must be in the DOM; otherwise, this method will always return `false`.
api.SVGGeometryElement.isPointInStroke.point_parameter_DOMPoint	Safari	9/17/2018	Chrome	4/29/2025	2416
api.SVGGeometryElement.pathLength 📋	Chrome	3/9/2017	Safari	9/17/2018	557	Chrome: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Chrome Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Firefox: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Firefox for Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Opera: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Opera Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Safari: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Safari on iOS: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.Samsung Internet: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.WebView Android: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.WebView on iOS: Only supported for `SVGPathElement`, not all `SVGGeometryElement` objects.
api.SVGGradientElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGGradientElement.gradientTransform 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGGradientElement.gradientUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGGradientElement.href 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
api.SVGGradientElement.spreadMethod 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGGraphicsElement 📋	Firefox	4/2/2013	Safari	10/22/2013	203	Chrome: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Chrome Android: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Firefox: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Firefox for Android: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Internet Explorer: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Opera: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Opera Android: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Safari: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Safari on iOS: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.Samsung Internet: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.WebView Android: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.WebView on iOS: The `SVGGraphicsElement` interface itself is not present, but some of its members are available on interfaces that inherit from `SVGGraphicsElement`.
api.SVGGraphicsElement.getBBox 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Firefox: Before Firefox 128, the `getBBox()` method returned an empty `DOMRect` when there is no fill (bug 1019326).Firefox: Before Firefox 68, this method didn't work for `<textPath>` and `<tspan>` elements (bug 937268).Firefox for Android: Before Firefox for Android 128, the `getBBox()` method returned an empty `DOMRect` when there is no fill (bug 1019326).Firefox for Android: Before Firefox for Android 68, this method didn't work for `<textPath>` and `<tspan>` elements (bug 937268).
api.SVGGraphicsElement.getCTM 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGGraphicsElement.getScreenCTM 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari: Transforms on the parent are not propagated down to its children; see bug 209220.Safari on iOS: Transforms on the parent are not propagated down to its children; see bug 209220.WebView on iOS: Transforms on the parent are not propagated down to its children; see bug 209220.
api.SVGGraphicsElement.requiredExtensions 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGGraphicsElement.systemLanguage 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGGraphicsElement.transform 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGImageElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGImageElement.crossOrigin 📋	Firefox	6/6/2023	Safari	12/11/2023	188
api.SVGImageElement.decode 📋	Chrome	1/23/2018	Safari	3/31/2025	2624
api.SVGImageElement.height 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGImageElement.href 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGImageElement.preserveAspectRatio 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGImageElement.width 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGImageElement.x 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGImageElement.y 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLength.convertToSpecifiedUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLength.newValueSpecifiedUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLength.unitType 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLength.value 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLength.valueAsString 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLength.valueInSpecifiedUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.appendItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.clear 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.getItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.initialize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.insertItemBefore 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.length 📋	Firefox	6/21/2011	Safari	3/24/2020	3199
api.SVGLengthList.numberOfItems 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.removeItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLengthList.replaceItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLineElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLineElement.x1 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLineElement.x2 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLineElement.y1 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLineElement.y2 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLinearGradientElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLinearGradientElement.x1 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLinearGradientElement.x2 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLinearGradientElement.y1 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGLinearGradientElement.y2 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMPathElement 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.SVGMPathElement.href 📋	Firefox	3/22/2011	Safari	7/25/2012	491
api.SVGMarkerElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.markerHeight 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.markerUnits 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.markerWidth 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.orientAngle 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.orientType 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.preserveAspectRatio 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
api.SVGMarkerElement.refX 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.refY 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.setOrientToAngle 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.setOrientToAuto 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGMarkerElement.viewBox 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
api.SVGMaskElement 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGMaskElement.height 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGMaskElement.maskContentUnits 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.SVGMaskElement.maskUnits 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.SVGMaskElement.width 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGMaskElement.x 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGMaskElement.y 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGMetadataElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGNumber 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGNumber.value 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGNumberList 📋	Firefox	11/29/2005	Chrome	9/2/2010	1738
api.SVGNumberList.appendItem 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGNumberList.clear 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGNumberList.getItem 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGNumberList.initialize 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGNumberList.insertItemBefore 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGNumberList.length 📋	Firefox	6/21/2011	Safari	3/24/2020	3199
api.SVGNumberList.numberOfItems 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGNumberList.removeItem 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGNumberList.replaceItem 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
api.SVGPathElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPathElement.getPointAtLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPathElement.getTotalLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPathElement.pathLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPatternElement 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.height 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.href 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.patternContentUnits 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.patternTransform 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.patternUnits 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.preserveAspectRatio 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.viewBox 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.width 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.x 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPatternElement.y 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGPoint 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPoint.matrixTransform 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPoint.x 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPoint.y 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.appendItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.clear 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.getItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.initialize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.insertItemBefore 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.length 📋	Firefox	6/21/2011	Safari	3/24/2020	3199
api.SVGPointList.numberOfItems 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.removeItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPointList.replaceItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPolygonElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPolygonElement.animatedPoints 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPolygonElement.points 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPolylineElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPolylineElement.animatedPoints 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPolylineElement.points 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPreserveAspectRatio 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPreserveAspectRatio.align 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGPreserveAspectRatio.meetOrSlice 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRadialGradientElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRadialGradientElement.cx 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRadialGradientElement.cy 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRadialGradientElement.fr 📋	Chrome	1/10/2013	Firefox	8/8/2017	1671
api.SVGRadialGradientElement.fx 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRadialGradientElement.fy 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRadialGradientElement.r 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRect 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRect.height	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRect.width	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRect.x	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRect.y	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRectElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRectElement.height 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRectElement.rx 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGRectElement.ry 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGRectElement.width 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRectElement.x 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGRectElement.y 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.animationsPaused 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGAngle 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGMatrix 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGNumber 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGPoint 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGRect 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGTransform 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.createSVGTransformFromMatrix 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.currentScale 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.currentTranslate 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.deselectAll 📋	Safari	10/26/2007	Firefox	10/29/2013	2195
api.SVGSVGElement.forceRedraw 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.getCurrentTime 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.getElementById 📋	Firefox	11/29/2005	Safari	7/20/2011	2059
api.SVGSVGElement.height 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.pauseAnimations 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.preserveAspectRatio 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.setCurrentTime 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.suspendRedraw 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.unpauseAnimations 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.unsuspendRedraw 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.unsuspendRedrawAll 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.viewBox 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.width 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.x 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSVGElement.y 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGScriptElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGScriptElement.async	Firefox	8/29/2023	Safari	12/12/2025	836
api.SVGScriptElement.href 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGScriptElement.type 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSetElement 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.SVGStopElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGStopElement.offset 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGStringList 📋	Safari	10/26/2007	Firefox	4/24/2012	1642	Firefox: Since version 13, `SVGStringList` is indexable like Array which is a non-standard behavior.Firefox for Android: `SVGStringList` is indexable like Array which is a non-standard behavior.
api.SVGStringList.appendItem 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStringList.clear 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStringList.getItem 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStringList.initialize 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStringList.insertItemBefore 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStringList.length 📋	Firefox	4/24/2012	Safari	3/24/2020	2891
api.SVGStringList.numberOfItems 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStringList.removeItem 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStringList.replaceItem 📋	Safari	10/26/2007	Firefox	4/24/2012	1642
api.SVGStyleElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGStyleElement.disabled 📋	Safari	7/25/2012	Firefox	8/23/2022	3681
api.SVGStyleElement.media 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGStyleElement.sheet 📋	Firefox	11/29/2005	Safari	3/27/2023	6327
api.SVGStyleElement.title 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGStyleElement.type 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSwitchElement 📋	Safari	10/26/2007	Chrome	12/11/2008	412
api.SVGSymbolElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSymbolElement.preserveAspectRatio 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGSymbolElement.viewBox 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTSpanElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getCharNumAtPosition 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getComputedTextLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getEndPositionOfChar 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getExtentOfChar 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getNumberOfChars 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getRotationOfChar 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getStartPositionOfChar 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.getSubStringLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.lengthAdjust 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.selectSubString 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextContentElement.textLength 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextPathElement 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
api.SVGTextPathElement.href 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
api.SVGTextPathElement.method 📋	Safari	3/18/2008	Firefox	4/2/2013	1841
api.SVGTextPathElement.spacing 📋	Safari	3/18/2008	Firefox	4/2/2013	1841
api.SVGTextPathElement.startOffset 📋	Safari	3/18/2008	Firefox	4/2/2013	1841
api.SVGTextPositioningElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextPositioningElement.dx 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextPositioningElement.dy 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextPositioningElement.rotate 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextPositioningElement.x 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTextPositioningElement.y 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTitleElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransform 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.angle 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.matrix 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.setMatrix 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.setRotate 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.setScale 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.setSkewX 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.setSkewY 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.setTranslate 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransform.type 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.SVGTransformList 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.appendItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.clear 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.consolidate 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.createSVGTransformFromMatrix 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.getItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.initialize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.insertItemBefore 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.length 📋	Firefox	12/20/2011	Safari	3/24/2020	3017
api.SVGTransformList.numberOfItems 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.removeItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGTransformList.replaceItem 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGUnitTypes 📋	Safari	3/18/2008	Chrome	12/11/2008	268
api.SVGUseElement 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGUseElement.height 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGUseElement.href 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGUseElement.width 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGUseElement.x 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGUseElement.y 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
api.SVGViewElement 📋	Safari	10/26/2007	Firefox	8/28/2012	1768
api.SVGViewElement.preserveAspectRatio 📋	Safari	10/26/2007	Firefox	8/28/2012	1768
api.SVGViewElement.viewBox 📋	Safari	10/26/2007	Firefox	8/28/2012	1768
api.Screen 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Screen.availHeight 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: Always reflects the main screen.
api.Screen.availLeft	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Screen.availLeft.relative-multi-screen	Safari	6/23/2003	Chrome	12/11/2008	1998	Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Screen.availTop	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Screen.availTop.relative-multi-screen	Safari	6/23/2003	Chrome	12/11/2008	1998	Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Screen.availWidth 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: Always reflects the main screen.
api.Screen.colorDepth 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Starting with version 59 this property is no longer required to always return 24.Chrome Android: Starting with version 59 this property is no longer required to always return 24.Quest Browser: Starting with version 5.0 this property is no longer required to always return 24.Samsung Internet: Starting with Samsung Internet 7.0 this property is no longer required to always return 24.WebView Android: Starting with version 59 this property is no longer required to always return 24.
api.Screen.height 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Screen.orientation 📋	Chrome	10/7/2014	Safari	3/27/2023	3093	Edge: Edge does not return an `Orientation` object; instead, it returns the orientation type as a string.Internet Explorer: Not supported on Windows 7.
api.Screen.pixelDepth 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Starting with version 59 this property is no longer required to always return 24.Chrome Android: Starting with version 59 this property is no longer required to always return 24.Quest Browser: Starting with version 5.0 this property is no longer required to always return 24.Samsung Internet: Starting with Samsung Internet 7.0 this property is no longer required to always return 24.WebView Android: Starting with version 59 this property is no longer required to always return 24.
api.Screen.width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.ScreenOrientation 📋	Chrome	10/7/2014	Safari	3/27/2023	3093
api.ScreenOrientation.angle 📋	Chrome	10/7/2014	Safari	3/27/2023	3093
api.ScreenOrientation.change_event 📋	Chrome	10/7/2014	Safari	3/27/2023	3093
api.ScreenOrientation.type 📋	Chrome	10/7/2014	Safari	3/27/2023	3093
api.ScriptProcessorNode	Chrome	1/10/2013	Firefox	10/29/2013	292
api.ScriptProcessorNode.audioprocess_event	Chrome	1/10/2013	Firefox	10/29/2013	292
api.ScriptProcessorNode.bufferSize 📋	Chrome	1/10/2013	Firefox	10/29/2013	292
api.SecurityPolicyViolationEvent 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.SecurityPolicyViolationEvent 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.blockedURI 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.columnNumber 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.disposition 📋	Chrome	1/25/2017	Safari	9/20/2021	1699
api.SecurityPolicyViolationEvent.documentURI 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.effectiveDirective 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.lineNumber 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.originalPolicy 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.referrer 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.sample 📋	Chrome	6/5/2017	Safari	9/20/2021	1568
api.SecurityPolicyViolationEvent.sourceFile 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.statusCode 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.SecurityPolicyViolationEvent.violatedDirective 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.Selection 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.addRange 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.anchorNode 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.anchorOffset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.collapse 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.collapse.node_parameter_nullable	Safari	4/15/2005	Firefox	8/8/2017	4498
api.Selection.collapse.offset_parameter_optional	Safari	4/15/2005	Firefox	8/8/2017	4498
api.Selection.collapseToEnd 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.collapseToStart 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.containsNode 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: Before Firefox 35, the method didn't throw if `node` was `null`.Firefox for Android: Before Firefox for Android 35, the method didn't throw if `node` was `null`.
api.Selection.containsNode.partialContainment_parameter_optional	Safari	3/18/2008	Firefox	8/8/2017	3430
api.Selection.deleteFromDocument 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.direction 📋	Safari	9/18/2023	Chrome	5/27/2025	617
api.Selection.empty 📋	Safari	4/15/2005	Firefox	8/8/2017	4498
api.Selection.extend 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.extend.offset_parameter_optional	Safari	3/18/2008	Firefox	8/8/2017	3430
api.Selection.focusNode 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.focusOffset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.getComposedRanges 📋	Safari	9/18/2023	Firefox	8/19/2025	701
api.Selection.getRangeAt 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.isCollapsed 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.modify 📋	Safari	4/15/2005	Firefox	3/22/2011	2167
api.Selection.rangeCount 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.removeAllRanges 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.removeRange 📋	Firefox	11/9/2004	Safari	9/18/2023	6887
api.Selection.selectAllChildren 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Selection.setBaseAndExtent 📋	Safari	4/15/2005	Firefox	4/19/2017	4387
api.Selection.setPosition 📋	Safari	4/15/2005	Firefox	8/8/2017	4498
api.Selection.toString 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: Before Firefox 139, `toString()` returns an empty string for selected texts in form elements. See bug 85686.Firefox for Android: Before Firefox for Android 139, `toString()` returns an empty string for selected texts in form elements. See bug 85686.
api.Selection.type 📋	Safari	4/15/2005	Firefox	11/14/2017	4596
api.ServiceWorker 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorker.ecmascript_modules	Chrome	5/25/2021	Firefox	1/13/2026	1694	Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.
api.ServiceWorker.error_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorker.postMessage 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorker.scriptURL 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorker.state 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorker.statechange_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer.controller 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer.controllerchange_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer.getRegistration 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer.getRegistrations 📋	Chrome	9/1/2015	Safari	4/12/2018	954
api.ServiceWorkerContainer.message_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer.messageerror_event 📋	Firefox	1/29/2019	Safari	3/27/2023	1518	Safari: Although the `onmessageerror` event handler property is supported, the `messageerror` event is never fired.Safari on iOS: Although the `onmessageerror` event handler property is supported, the `messageerror` event is never fired.
api.ServiceWorkerContainer.ready 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer.register 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerContainer.startMessages 📋	Safari	4/12/2018	Chrome	4/23/2019	376
api.ServiceWorkerGlobalScope 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerGlobalScope.activate_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerGlobalScope.clients 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerGlobalScope.cookieStore 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.ServiceWorkerGlobalScope.fetch_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerGlobalScope.install_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177	Firefox: The `install` event handler is called with an `ExtendableEvent`, not an `InstallEvent`.Firefox for Android: The `install` event handler is called with an `ExtendableEvent`, not an `InstallEvent`.Safari: Returns `ExtendableEvent` instead of `InstallEvent`.Safari on iOS: Returns `ExtendableEvent` instead of `InstallEvent`.
api.ServiceWorkerGlobalScope.message_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerGlobalScope.messageerror_event 📋	Safari	4/12/2018	Chrome	4/7/2020	726	Safari: Although the `onmessageerror` property is supported, the `messageerror` event is never fired. See bug 272967.Safari on iOS: Although the `onmessageerror` property is supported, the `messageerror` event is never fired. See bug 272967.
api.ServiceWorkerGlobalScope.notificationclick_event 📋	Chrome	1/21/2015	Safari	9/12/2022	2791	Safari: Notifications are supported on macOS Ventura and later.
api.ServiceWorkerGlobalScope.notificationclose_event 📋	Firefox	1/26/2016	Safari	9/12/2022	2421	Safari: Notifications are supported on macOS Ventura and later.
api.ServiceWorkerGlobalScope.push_event 📋	Chrome	1/21/2015	Safari	9/12/2022	2791	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerGlobalScope.pushsubscriptionchange_event 📋	Firefox	1/26/2016	Chrome	6/24/2025	3437	Firefox: The event does not have the `oldSubscription` and `newSubscription` properties. See bug 1497429.Firefox for Android: The event does not have the `oldSubscription` and `newSubscription` properties. See bug 1497429.Safari: Notifications are supported on macOS Ventura and later.
api.ServiceWorkerGlobalScope.registration 📋	Chrome	4/14/2015	Safari	4/12/2018	1094
api.ServiceWorkerGlobalScope.skipWaiting 📋	Chrome	3/3/2015	Safari	4/12/2018	1136
api.ServiceWorkerRegistration 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerRegistration.active 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerRegistration.getNotifications 📋	Chrome	1/21/2015	Safari	9/12/2022	2791	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerRegistration.installing 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerRegistration.navigationPreload 📋	Chrome	6/5/2017	Firefox	4/5/2022	1765
api.ServiceWorkerRegistration.pushManager 📋	Chrome	1/21/2015	Safari	9/12/2022	2791	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerRegistration.scope 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerRegistration.showNotification 📋	Chrome	4/14/2015	Safari	9/12/2022	2708	Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerRegistration.unregister 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerRegistration.update 📋	Chrome	9/1/2015	Safari	4/12/2018	954	Chrome: Starting with Chrome 46, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Chrome: Before Chrome 48, this method always bypassed the browser cache. Starting with Chrome 48, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Chrome Android: Starting with Chrome Android 46, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Chrome Android: Before Chrome Android 48, this method always bypassed the browser cache. Starting with Chrome Android 48, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Quest Browser: Starting with Quest Browser 5.0, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Quest Browser: Before Quest Browser 5.0, this method always bypassed the browser cache. Starting with Quest Browser 5.0, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Opera: Starting with Opera 33, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Opera: Before Opera 35, this method always bypassed the browser cache. Starting with Opera 35, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Opera Android: Starting with Opera Android 33, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Opera Android: Before Opera Android 35, this method always bypassed the browser cache. Starting with Opera Android 35, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Samsung Internet: Starting with Samsung Internet 5.0, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Samsung Internet: Before Samsung Internet 5.0, this method always bypassed the browser cache. Starting with Samsung Internet 5.0, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.WebView Android: Starting with WebView Android 46, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.WebView Android: Before WebView Android 48, this method always bypassed the browser cache. Starting with WebView Android 48, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.
api.ServiceWorkerRegistration.updateViaCache 📋	Firefox	11/14/2017	Chrome	7/24/2018	252
api.ServiceWorkerRegistration.updatefound_event 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ServiceWorkerRegistration.waiting 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.ShadowRoot 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.ShadowRoot.activeElement 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.ShadowRoot.adoptedStyleSheets 📋	Chrome	3/12/2019	Safari	3/27/2023	1476
api.ShadowRoot.clonable 📋	Firefox	2/20/2024	Chrome	4/16/2024	56
api.ShadowRoot.delegatesFocus 📋	Chrome	8/31/2016	Firefox	11/2/2021	1889
api.ShadowRoot.elementFromPoint	Chrome	8/31/2016	Firefox	10/23/2018	783	Chrome: Before Chrome 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Quest Browser: Before Quest Browser 5.0, this method returned `null` when the element was a child of a host node. See bug 40537452.Opera: Before Opera 53, this method returned `null` when the element was a child of a host node. See bug 40537452.Opera Android: Before Opera Android 47, this method returned `null` when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned `null` when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.
api.ShadowRoot.elementsFromPoint	Chrome	8/31/2016	Firefox	10/23/2018	783	Chrome: Before Chrome 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.Quest Browser: Before Quest Browser 5.0, this method returned `null` when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned `null` when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned `null` when the element was a child of a host node. See bug 40537452.
api.ShadowRoot.fullscreenElement 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.
api.ShadowRoot.getAnimations 📋	Firefox	4/7/2020	Safari	9/16/2020	162
api.ShadowRoot.getHTML 📋	Chrome	5/14/2024	Safari	9/16/2024	125
api.ShadowRoot.getHTML.escapes_lt_gt_in_attributes	Chrome	6/24/2025	Safari	9/15/2025	83
api.ShadowRoot.host 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.ShadowRoot.innerHTML 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.ShadowRoot.innerHTML.escapes_lt_gt_in_attributes	Chrome	6/24/2025	Safari	9/15/2025	83
api.ShadowRoot.mode 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.ShadowRoot.pointerLockElement 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.ShadowRoot.referenceTarget	Chrome	2/4/2025	Firefox	3/24/2026	413
api.ShadowRoot.serializable 📋	Chrome	5/14/2024	Safari	9/16/2024	125
api.ShadowRoot.setHTMLUnsafe 📋	Firefox	2/20/2024	Safari	9/15/2025	573	Safari: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).Safari on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).WebView on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and `connectedCallback()` methods are not called (bug 296420).
api.ShadowRoot.slotAssignment 📋	Chrome	10/20/2020	Safari	3/27/2023	888
api.ShadowRoot.styleSheets 📋	Chrome	8/31/2016	Safari	3/25/2019	936
api.SharedWorker 📋	Chrome	5/25/2010	Safari	9/12/2022	4493
api.SharedWorker.SharedWorker 📋	Chrome	5/25/2010	Safari	9/12/2022	4493
api.SharedWorker.SharedWorker.ecmascript_modules	Chrome	2/4/2020	Firefox	6/6/2023	1218	Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.WebView on iOS: Nested workers support was introduced in WebView on iOS 15.5.WebView on iOS: Script loading in nested workers was introduced in WebView on iOS 16.4.
api.SharedWorker.SharedWorker.options_type_parameter	Chrome	2/4/2020	Firefox	6/6/2023	1218
api.SharedWorker.error_event 📋	Chrome	5/25/2010	Safari	9/12/2022	4493
api.SharedWorker.port 📋	Chrome	5/25/2010	Safari	9/12/2022	4493
api.SharedWorkerGlobalScope 📋	Chrome	1/25/2010	Safari	9/12/2022	4613
api.SharedWorkerGlobalScope.close 📋	Chrome	1/25/2010	Safari	9/12/2022	4613
api.SharedWorkerGlobalScope.connect_event 📋	Chrome	1/25/2010	Safari	9/12/2022	4613	Firefox: Before version 65 the `data` property of the event object was `null`; it is now initialized to an empty string, as per spec.Firefox for Android: Before version 65 the `data` property of the event object was `null`; it is now initialized to an empty string, as per spec.
api.SharedWorkerGlobalScope.name 📋	Chrome	1/25/2010	Safari	9/12/2022	4613
api.SourceBuffer 📋	Chrome	11/12/2013	Firefox	11/3/2015	721	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.abort 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.abort_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onabort` event handler property is not supported.Chrome Android: The `onabort` event handler property is not supported.Edge: The `onabort` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onabort` event handler property is not supported.Opera Android: The `onabort` event handler property is not supported.Safari: The `onabort` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onabort` event handler property is not supported.WebView Android: The `onabort` event handler property is not supported.
api.SourceBuffer.appendBuffer 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.appendWindowEnd 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.appendWindowStart 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.buffered 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.changeType 📋	Chrome	10/16/2018	Safari	3/25/2019	160	Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.error_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onerror` event handler property is not supported.Chrome Android: The `onerror` event handler property is not supported.Edge: The `onerror` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onerror` event handler property is not supported.Opera Android: The `onerror` event handler property is not supported.Safari: The `onerror` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onerror` event handler property is not supported.WebView Android: The `onerror` event handler property is not supported.
api.SourceBuffer.mode 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.remove 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.timestampOffset 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.update_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onupdate` event handler property is not supported.Chrome Android: The `onupdate` event handler property is not supported.Edge: The `onupdate` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onupdate` event handler property is not supported.Opera Android: The `onupdate` event handler property is not supported.Safari: The `onupdate` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onupdate` event handler property is not supported.WebView Android: The `onupdate` event handler property is not supported.
api.SourceBuffer.updateend_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onupdateend` event handler property is not supported.Chrome Android: The `onupdateend` event handler property is not supported.Edge: The `onupdateend` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onupdateend` event handler property is not supported.Opera Android: The `onupdateend` event handler property is not supported.Safari: The `onupdateend` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onupdateend` event handler property is not supported.WebView Android: The `onupdateend` event handler property is not supported.
api.SourceBuffer.updatestart_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onupdatestart` event handler property is not supported.Chrome Android: The `onupdatestart` event handler property is not supported.Edge: The `onupdatestart` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onupdatestart` event handler property is not supported.Opera Android: The `onupdatestart` event handler property is not supported.Safari: The `onupdatestart` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onupdatestart` event handler property is not supported.WebView Android: The `onupdatestart` event handler property is not supported.
api.SourceBuffer.updating 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBufferList 📋	Chrome	11/12/2013	Firefox	11/3/2015	721	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBufferList.addsourcebuffer_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onaddsourcebuffer` event handler property is not supported.Chrome Android: The `onaddsourcebuffer` event handler property is not supported.Edge: The `onaddsourcebuffer` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onaddsourcebuffer` event handler property is not supported.Opera Android: The `onaddsourcebuffer` event handler property is not supported.Safari: The `onaddsourcebuffer` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onaddsourcebuffer` event handler property is not supported.WebView Android: The `onaddsourcebuffer` event handler property is not supported.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBufferList.length 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBufferList.removesourcebuffer_event 📋	Firefox	11/3/2015	Safari	3/27/2017	510	Chrome: The `onremovesourcebuffer` event handler property is not supported.Chrome Android: The `onremovesourcebuffer` event handler property is not supported.Edge: The `onremovesourcebuffer` event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The `onremovesourcebuffer` event handler property is not supported.Opera Android: The `onremovesourcebuffer` event handler property is not supported.Safari: The `onremovesourcebuffer` event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The `onremovesourcebuffer` event handler property is not supported.WebView Android: The `onremovesourcebuffer` event handler property is not supported.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SpeechRecognition 📋	Safari	4/26/2021	Firefox	8/19/2025	1576	Chrome: You'll need to serve your code through a web server for recognition to work.Chrome Android: You'll need to serve your code through a web server for recognition to work.Edge: You'll need to serve your code through a web server for recognition to work.Quest Browser: You'll need to serve your code through a web server for recognition to work.Opera: You'll need to serve your code through a web server for recognition to work.Opera Android: You'll need to serve your code through a web server for recognition to work.Samsung Internet: You'll need to serve your code through a web server for recognition to work.WebView Android: You'll need to serve your code through a web server for recognition to work.
api.SpeechRecognition.SpeechRecognition 📋	Safari	4/26/2021	Firefox	8/19/2025	1576
api.SpeechRecognition.abort 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.audioend_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.audiostart_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.continuous 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226	Chrome Android: The property can be set, but has no effect.Quest Browser: The property can be set, but has no effect.Opera Android: The property can be set, but has no effect.Samsung Internet: The property can be set, but has no effect.WebView Android: The property can be set, but has no effect.
api.SpeechRecognition.end_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.error_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.interimResults 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.lang 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.maxAlternatives 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.nomatch_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.result_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.soundend_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.soundstart_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.speechend_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.speechstart_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.start 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.start_event 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechRecognition.stop 📋	Chrome	2/20/2014	Firefox	9/16/2025	4226
api.SpeechSynthesis 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.cancel 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.getVoices 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.pause 📋	Safari	10/22/2013	Firefox	9/20/2016	1064	Chrome Android: In Android, `pause()` ends the current utterance. `pause()` behaves the same as `cancel()`.Firefox for Android: In Android, `pause()` ends the current utterance. `pause()` behaves the same as `cancel()`.Quest Browser: In Android, `pause()` ends the current utterance. `pause()` behaves the same as `cancel()`.Samsung Internet: In Android, `pause()` ends the current utterance. `pause()` behaves the same as `cancel()`.
api.SpeechSynthesis.paused 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.pending 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.resume 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.speak 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.speaking 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesis.voiceschanged_event 📋	Chrome	2/20/2014	Safari	9/12/2022	3126
api.SpeechSynthesisErrorEvent 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisErrorEvent.SpeechSynthesisErrorEvent 📋	Firefox	9/20/2016	Safari	9/12/2022	2183
api.SpeechSynthesisErrorEvent.error 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisEvent 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisEvent.SpeechSynthesisEvent 📋	Firefox	9/20/2016	Safari	9/12/2022	2183
api.SpeechSynthesisEvent.charIndex 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisEvent.charLength 📋	Firefox	4/19/2017	Safari	9/12/2022	1972
api.SpeechSynthesisEvent.elapsedTime 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisEvent.name 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisEvent.utterance 📋	Chrome	2/20/2014	Safari	9/12/2022	3126
api.SpeechSynthesisUtterance 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.SpeechSynthesisUtterance 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.boundary_event 📋	Safari	10/22/2013	Firefox	9/20/2016	1064	Chrome: The `boundary` event does not fire as expected. See bug 40715888.Chrome Android: The `boundary` event does not fire as expected. See bug 40715888.Quest Browser: The `boundary` event does not fire as expected. See bug 40715888.
api.SpeechSynthesisUtterance.end_event 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.error_event 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.lang 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.mark_event 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.pause_event 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.pitch 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.rate 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.resume_event 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.start_event 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.text 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.voice 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisUtterance.volume 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisVoice 📋	Safari	10/22/2013	Firefox	9/20/2016	1064	Firefox: In Firefox, speech synthesis voices do not start loading until after the first call to `window.speechSynthesis.getVoices()`. A way to mitigate this issue is to call the method at the beginning of page load, then wait a few seconds before calling the method again. Voices will remain loaded until all tabs that have called this method have been closed.
api.SpeechSynthesisVoice.default 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisVoice.lang 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisVoice.localService 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisVoice.name 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.SpeechSynthesisVoice.voiceURI 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.StaticRange 📋	Safari	3/27/2017	Firefox	9/3/2019	890	Firefox: In Firefox, `StaticRange` can currently only be used by browser-internal code or code with enhanced permissions; it is not yet exposed to the web.
api.StaticRange.StaticRange 📋	Firefox	12/10/2019	Chrome	4/13/2021	490
api.StaticRange.collapsed 📋	Safari	3/27/2017	Firefox	9/3/2019	890
api.StaticRange.endContainer 📋	Safari	3/27/2017	Firefox	9/3/2019	890
api.StaticRange.endOffset 📋	Safari	3/27/2017	Firefox	9/3/2019	890
api.StaticRange.startContainer 📋	Safari	3/27/2017	Firefox	9/3/2019	890
api.StaticRange.startOffset 📋	Safari	3/27/2017	Firefox	9/3/2019	890
api.StereoPannerNode 📋	Chrome	3/3/2015	Safari	4/26/2021	2246
api.StereoPannerNode.StereoPannerNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.StereoPannerNode.pan 📋	Chrome	3/3/2015	Safari	4/26/2021	2246
api.Storage 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.Storage.clear 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.Storage.getItem 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.Storage.key 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.Storage.length 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.Storage.removeItem 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.Storage.setItem 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.StorageEvent 📋	Chrome	12/11/2008	Firefox	6/5/2012	1272
api.StorageEvent.StorageEvent	Chrome	2/8/2012	Safari	7/25/2012	168
api.StorageEvent.initStorageEvent 📋	Safari	6/8/2009	Firefox	6/5/2012	1093
api.StorageEvent.key 📋	Chrome	12/11/2008	Firefox	6/5/2012	1272
api.StorageEvent.newValue 📋	Chrome	12/11/2008	Firefox	6/5/2012	1272
api.StorageEvent.oldValue 📋	Chrome	12/11/2008	Firefox	6/5/2012	1272
api.StorageEvent.storageArea 📋	Safari	6/8/2009	Firefox	6/5/2012	1093
api.StorageEvent.url 📋	Safari	6/7/2010	Firefox	6/5/2012	729
api.StorageManager 📋	Chrome	12/1/2016	Safari	12/13/2021	1838
api.StorageManager.estimate 📋	Chrome	9/5/2017	Safari	9/18/2023	2204
api.StorageManager.getDirectory 📋	Chrome	10/20/2020	Firefox	3/14/2023	875
api.StorageManager.persist 📋	Chrome	12/1/2016	Safari	12/13/2021	1838
api.StorageManager.persisted 📋	Chrome	12/1/2016	Safari	12/13/2021	1838
api.StyleSheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheet.disabled 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheet.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheet.media 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheet.ownerNode 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheet.parentStyleSheet 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheet.title 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheet.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheetList 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheetList.item 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.StyleSheetList.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.SubmitEvent 📋	Chrome	4/7/2020	Safari	9/20/2021	531
api.SubmitEvent.SubmitEvent 📋	Chrome	4/7/2020	Safari	9/20/2021	531
api.SubmitEvent.submitter 📋	Chrome	4/7/2020	Safari	3/14/2022	706	Safari: Property is not set for `<button>` elements. See bug 229660.Safari on iOS: Property is not set for `<button>` elements. See bug 229660.WebView on iOS: Property is not set for `<button>` elements. See bug 229660.
api.SubtleCrypto 📋	Chrome	8/26/2014	Safari	9/19/2017	1120	Node.js: Available as a part of the `crypto` module.
api.SubtleCrypto.decrypt 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: Not supported: AES-CTR, AES-GCM.Deno: Not supported: AES-CTR, AES-CBC, AES-GCM.Edge: Not supported: AES-CTR.Internet Explorer: Returns `CryptoOperation` instead of `Promise`
api.SubtleCrypto.deriveBits 📋	Firefox	12/1/2014	Safari	9/19/2017	1023	Deno: Not supported: ECDH.Edge: Not supported: ECDH.Edge: Not supported: HKDF, PBKDF2.Node.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.deriveBits.x25519 📋	Safari	9/18/2023	Chrome	2/4/2025	505
api.SubtleCrypto.deriveKey 📋	Firefox	12/1/2014	Safari	9/19/2017	1023	Edge: Not supported: ECDH.Edge: Not supported: HKDF, PBKDF2.Node.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_aes 📋	Firefox	12/1/2014	Safari	9/19/2017	1023
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_hkdf 📋	Chrome	3/3/2015	Firefox	10/24/2023	3157
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_hmac 📋	Firefox	12/1/2014	Safari	9/19/2017	1023
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_pbkdf2 📋	Chrome	3/3/2015	Firefox	10/24/2023	3157
api.SubtleCrypto.deriveKey.x25519 📋	Safari	9/18/2023	Chrome	2/4/2025	505
api.SubtleCrypto.digest 📋	Safari	10/22/2013	Chrome	3/3/2015	497	Chrome: Before version 41, Chrome expected the `algorithm` parameter to be an object.Chrome Android: Before version 41, Chrome Android expected the `algorithm` parameter to be an object.Edge: Not supported: SHA-1.Internet Explorer: Returns `CryptoOperation` instead of `Promise`Opera: Before version 28, Opera expected the `algorithm` parameter to be an object.Opera Android: Before version 28, Opera Android expected the `algorithm` parameter to be an object.Samsung Internet: Before version 4.0, Samsung Internet expected the `algorithm` parameter to be an object.WebView Android: Before version 41, WebView Android expected the `algorithm` parameter to be an object.
api.SubtleCrypto.encrypt 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: Not supported: AES-CTR, AES-GCM.Deno: Not supported: AES-CTR, AES-CBC, AES-GCM.Edge: Not supported: AES-CTR.Internet Explorer: Returns `CryptoOperation` instead of `Promise`
api.SubtleCrypto.exportKey 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: Not supported: ECDSA, ECDH.Deno: Not supported: ECDSA, ECDH, AES-CTR, AES-CBC, AES-GCM, AES-KW.Edge: Not supported: RSA-PSS, ECDSA, ECDH.Edge: Not supported: AES-CTR.Internet Explorer: Returns `KeyOperation` instead of `Promise`Node.js: Supports: NODE-DSANode.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.exportKey.ed25519 📋	Safari	9/18/2023	Chrome	5/27/2025	617
api.SubtleCrypto.exportKey.x25519 📋	Safari	9/18/2023	Chrome	2/4/2025	505
api.SubtleCrypto.generateKey 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: Not supported: ECDSA P-521, ECDH P-521.Deno: Not supported: RSA-OAEP, ECDSA P-521, ECDH, AES-CTR, AES-CBC, AES-GCM, AES-KW.Edge: Not supported: RSA-PSS, ECDSA, ECDH.Edge: Not supported: AES-CTR.Internet Explorer: Returns `KeyOperation` instead of `Promise`Node.js: Supports: NODE-DSANode.js: Supports: NODE-DH
api.SubtleCrypto.generateKey.ed25519 📋	Safari	9/18/2023	Chrome	5/27/2025	617
api.SubtleCrypto.generateKey.x25519 📋	Safari	9/18/2023	Chrome	2/4/2025	505
api.SubtleCrypto.importKey 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: Not supported: ECDH P-521.Deno: Not supported: ECDH.Deno: Not supported: AES-CTR, AES-CBC, AES-GCM, AES-KW.Edge: Not supported: RSA-PSS, ECDSA, ECDH.Edge: Not supported: AES-CTR, HKDF, PBKDF2.Internet Explorer: Returns `KeyOperation` instead of `Promise`Node.js: Supports: NODE-DSANode.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.importKey.ECDH 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: P-384 supported. Not supported: P-256, P-521.
api.SubtleCrypto.importKey.ECDSA 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: P-384 supported. Not supported: P-256, P-521.
api.SubtleCrypto.importKey.ed25519 📋	Safari	9/18/2023	Chrome	5/27/2025	617
api.SubtleCrypto.importKey.x25519 📋	Safari	9/18/2023	Chrome	2/4/2025	505
api.SubtleCrypto.secure_context_required	Chrome	7/25/2017	Safari	9/20/2021	1518
api.SubtleCrypto.sign 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Edge: Not supported: RSA-PSS, ECDSA.Internet Explorer: Returns `CryptoOperation` instead of `Promise`Node.js: Supports: NODE-DSA
api.SubtleCrypto.sign.ed25519 📋	Safari	9/18/2023	Chrome	5/27/2025	617	Safari: Generates randomized signatures as per draft-irtf-cfrg-det-sigs-with-noise, instead of deterministic signatures as per RFC 8032.Safari on iOS: Generates randomized signatures as per draft-irtf-cfrg-det-sigs-with-noise, instead of deterministic signatures as per RFC 8032.WebView on iOS: Generates randomized signatures as per draft-irtf-cfrg-det-sigs-with-noise, instead of deterministic signatures as per RFC 8032.
api.SubtleCrypto.unwrapKey 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Edge: Not supported: AES-CTR.Internet Explorer: Returns `KeyOperation` instead of `Promise`Node.js: Supports: NODE-DSANode.js: Supports: NODE-DH
api.SubtleCrypto.verify 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Deno: Not supported: ECDSA, HMAC.Edge: Not supported: RSA-PSS, ECDSA.Internet Explorer: Returns `CryptoOperation` instead of `Promise`Node.js: Supports: NODE-DSA
api.SubtleCrypto.verify.ed25519 📋	Safari	9/18/2023	Chrome	5/27/2025	617
api.SubtleCrypto.worker_support	Chrome	8/26/2014	Safari	9/19/2017	1120
api.SubtleCrypto.wrapKey 📋	Safari	10/22/2013	Firefox	12/1/2014	405	Edge: Not supported: AES-CTR.Internet Explorer: Returns `KeyOperation` instead of `Promise`
api.Text 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Text.Text 📋	Chrome	8/20/2013	Safari	10/16/2014	422
api.Text.assignedSlot 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
api.Text.splitText 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Before Chrome 30, the `offset` parameter was optional.Chrome Android: Before Chrome Android 30, the `offset` parameter was optional.Quest Browser: Before Quest Browser 5.0, the `offset` parameter was optional.Opera: Before Opera 17, the `offset` parameter was optional.Opera Android: Before Opera 17, the `offset` parameter was optional.Safari: The `offset` parameter is optional.Safari on iOS: The `offset` parameter is optional.Samsung Internet: Before Samsung Internet 2.0, the `offset` parameter was optional.WebView Android: Before version 4.4, the `offset` parameter was optional.WebView on iOS: The `offset` parameter is optional.
api.Text.wholeText 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.TextDecoder 📋	Firefox	2/19/2013	Safari	3/27/2017	1497	Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.Node.js: Available as a part of the `util` module.
api.TextDecoder.TextDecoder 📋	Firefox	2/19/2013	Safari	3/27/2017	1497	Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.
api.TextDecoder.decode 📋	Firefox	2/19/2013	Safari	3/27/2017	1497	Deno: Before Deno 1.11, passing `option.stream` is not supported and results in an error being thrown.Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.
api.TextDecoder.encoding 📋	Firefox	2/19/2013	Safari	3/27/2017	1497	Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.
api.TextDecoder.fatal 📋	Chrome	10/7/2014	Safari	3/27/2017	902
api.TextDecoder.ignoreBOM 📋	Chrome	10/7/2014	Firefox	10/23/2018	1477
api.TextDecoder.worker_support	Firefox	4/2/2013	Safari	3/27/2017	1455
api.TextDecoderStream 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386	Node.js: Available as a part of the `stream/web` module.
api.TextDecoderStream.TextDecoderStream 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextDecoderStream.encoding 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextDecoderStream.fatal 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextDecoderStream.ignoreBOM 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextDecoderStream.readable 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextDecoderStream.writable 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextEncoder 📋	Firefox	1/8/2013	Safari	3/27/2017	1539	Node.js: Available as a part of the `util` module.
api.TextEncoder.TextEncoder 📋	Firefox	1/8/2013	Safari	3/27/2017	1539
api.TextEncoder.encode 📋	Firefox	1/8/2013	Safari	3/27/2017	1539
api.TextEncoder.encodeInto 📋	Firefox	3/19/2019	Safari	4/26/2021	769
api.TextEncoder.encoding 📋	Firefox	1/8/2013	Safari	3/27/2017	1539
api.TextEncoder.worker_support	Firefox	4/2/2013	Safari	3/27/2017	1455
api.TextEncoderStream 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386	Node.js: Available as a part of the `stream/web` module.
api.TextEncoderStream.TextEncoderStream 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextEncoderStream.encoding 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextEncoderStream.readable 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextEncoderStream.writable 📋	Chrome	12/4/2018	Firefox	9/20/2022	1386
api.TextEvent 📋	Safari	10/26/2007	Firefox	8/6/2024	6129
api.TextEvent.data 📋	Safari	10/26/2007	Firefox	8/6/2024	6129
api.TextEvent.initTextEvent 📋	Safari	10/26/2007	Firefox	8/6/2024	6129
api.TextMetrics 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.TextMetrics.actualBoundingBoxAscent 📋	Safari	4/12/2018	Firefox	3/10/2020	698
api.TextMetrics.actualBoundingBoxDescent 📋	Safari	4/12/2018	Firefox	3/10/2020	698
api.TextMetrics.actualBoundingBoxLeft 📋	Safari	4/12/2018	Firefox	3/10/2020	698
api.TextMetrics.actualBoundingBoxRight 📋	Safari	4/12/2018	Firefox	3/10/2020	698
api.TextMetrics.alphabeticBaseline 📋	Safari	4/12/2018	Chrome	10/10/2023	2007
api.TextMetrics.emHeightAscent 📋	Safari	4/12/2018	Firefox	9/26/2023	1993
api.TextMetrics.emHeightDescent 📋	Safari	4/12/2018	Firefox	9/26/2023	1993
api.TextMetrics.fontBoundingBoxAscent 📋	Safari	4/12/2018	Firefox	8/1/2023	1937
api.TextMetrics.fontBoundingBoxDescent 📋	Safari	4/12/2018	Firefox	8/1/2023	1937
api.TextMetrics.hangingBaseline 📋	Safari	4/12/2018	Chrome	10/10/2023	2007
api.TextMetrics.ideographicBaseline 📋	Safari	4/12/2018	Chrome	10/10/2023	2007
api.TextMetrics.width 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
api.TextTrack 📋	Safari	7/25/2012	Firefox	7/22/2014	727	Firefox: Firefox versions before Firefox 50 didn't display captions when playing media without one or more video tracks being played.
api.TextTrack.activeCues 📋	Safari	7/25/2012	Firefox	7/22/2014	727	Firefox: Starting in Firefox 69, cues are no longer incorrectly loaded when the `TextTrack`'s `mode` is `disabled`; if that's the case, the returned list is empty.
api.TextTrack.addCue 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrack.cuechange_event 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrack.cues 📋	Safari	7/25/2012	Firefox	7/22/2014	727	Firefox: Starting in Firefox 69, cues are no longer incorrectly loaded when the `TextTrack`'s `mode` is `disabled`; if that's the case, the returned list is empty.
api.TextTrack.id 📋	Chrome	2/20/2014	Safari	10/16/2014	238
api.TextTrack.kind 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrack.label 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrack.language 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrack.mode 📋	Safari	7/25/2012	Firefox	7/22/2014	727	Firefox: Before Firefox 52, using JavaScript to change the mode of a text track that's part of a media element would send one change event to the element's textTracks TextTrackList for each change, even if multiple changes are made in a single pass through the Firefox event loop. Starting in Firefox 52, these changes are reflected by a single event.
api.TextTrack.removeCue 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue.endTime 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue.enter_event 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue.exit_event 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue.id 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue.pauseOnExit 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue.startTime 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCue.track 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCueList 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCueList.getCueById 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackCueList.length 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackList 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackList.addtrack_event 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackList.change_event 📋	Safari	10/22/2013	Firefox	7/22/2014	273
api.TextTrackList.getTrackById 📋	Chrome	2/20/2014	Safari	10/16/2014	238
api.TextTrackList.length 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.TextTrackList.removetrack_event 📋	Safari	10/22/2013	Firefox	7/22/2014	273
api.TimeRanges 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
api.TimeRanges.end 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
api.TimeRanges.length 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
api.TimeRanges.start 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
api.ToggleEvent 📋	Chrome	5/30/2023	Firefox	11/21/2023	175
api.ToggleEvent.ToggleEvent 📋	Chrome	5/30/2023	Firefox	11/21/2023	175
api.ToggleEvent.newState 📋	Chrome	5/30/2023	Firefox	11/21/2023	175
api.ToggleEvent.oldState 📋	Chrome	5/30/2023	Firefox	11/21/2023	175
api.TrackEvent 📋	Safari	7/25/2012	Firefox	2/4/2014	559
api.TrackEvent.TrackEvent 📋	Safari	7/25/2012	Firefox	2/4/2014	559
api.TrackEvent.track 📋	Safari	7/25/2012	Firefox	2/4/2014	559
api.TransformStream 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491	Node.js: Available as a part of the `stream/web` module.
api.TransformStream.TransformStream 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491
api.TransformStream.readable 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491
api.TransformStream.writable 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491
api.TransformStreamDefaultController 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491	Deno: `TransformStreamDefaultController` is not exposed on the global scope.Node.js: Available as a part of the `stream/web` module.
api.TransformStreamDefaultController.desiredSize 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491
api.TransformStreamDefaultController.enqueue 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491
api.TransformStreamDefaultController.error 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491
api.TransformStreamDefaultController.terminate 📋	Chrome	5/29/2018	Firefox	6/28/2022	1491
api.TransitionEvent 📋	Firefox	3/22/2011	Safari	10/22/2013	945
api.TransitionEvent.TransitionEvent 📋	Chrome	5/21/2013	Safari	10/22/2013	154
api.TransitionEvent.elapsedTime 📋	Chrome	5/21/2009	Safari	7/25/2012	1161
api.TransitionEvent.propertyName 📋	Chrome	5/21/2009	Safari	7/25/2012	1161
api.TransitionEvent.pseudoElement 📋	Chrome	5/21/2009	Firefox	8/6/2013	1538
api.TreeWalker 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.currentNode 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.filter 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.firstChild 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.lastChild 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.nextNode 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.nextSibling 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.parentNode 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.previousNode 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.previousSibling 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.root 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TreeWalker.whatToShow 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.TrustedHTML 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedHTML.toJSON 📋	Chrome	4/13/2021	Firefox	2/24/2026	1778
api.TrustedHTML.toString 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedScript 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedScript.toJSON 📋	Chrome	4/13/2021	Firefox	2/24/2026	1778
api.TrustedScript.toString 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedScriptURL 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedScriptURL.toJSON 📋	Chrome	4/13/2021	Firefox	2/24/2026	1778
api.TrustedScriptURL.toString 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicy 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicy.createHTML 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicy.createScript 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicy.createScriptURL 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicy.name 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.createPolicy 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.defaultPolicy 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.emptyHTML 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.emptyScript 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.getAttributeType 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.getPropertyType 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.isHTML 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.isScript 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.TrustedTypePolicyFactory.isScriptURL 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107
api.UIEvent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.UIEvent.UIEvent 📋	Firefox	3/13/2012	Safari	10/22/2013	588
api.UIEvent.detail 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Always `0` on `click` and `dblclick` events. On `mousedown` and `mouseup` events, the count is not unique to the element, but is rather the global click count for the current document -- even across refreshes.
api.UIEvent.initUIEvent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.UIEvent.view 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.UIEvent.which 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.Chrome Android: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.Edge: Only supported for `KeyboardEvent` and `MouseEvent`, not all `UIEvent` objects.Firefox: On `mousemove` events, the `which` property is incorrectly always set to `1`.Firefox for Android: On `mousemove` events, the `which` property is incorrectly always set to `1`.Internet Explorer: Only supported for `KeyboardEvent` and `MouseEvent`, not all `UIEvent` objects.Quest Browser: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.Opera: Only supported for `KeyboardEvent` and `MouseEvent`, not all `UIEvent` objects.Opera Android: Only supported for `KeyboardEvent` and `MouseEvent`, not all `UIEvent` objects.Samsung Internet: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.WebView Android: When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.
api.URL 📋	Firefox	2/19/2013	Chrome	1/14/2014	329	Firefox: Before version 57, Firefox had a bug whereby single quotes contained in URLs are escaped when accessed via URL APIs (see bug 1386683).Firefox for Android: Before version 57, Firefox for Android had a bug whereby single quotes contained in URLs are escaped when accessed via URL APIs (see bug 1386683).Node.js: Available as a part of the `url` module.
api.URL.URL 📋	Chrome	5/15/2012	Safari	4/26/2021	3268	Edge: Before Edge 79, query arguments in the base URL argument are removed when calling the `URL` constructor.Firefox: Before version 122, `host`, `hostname`, and `port` were not parsed for unknown protocols/schemes.Firefox for Android: Before version 122, `host`, `hostname`, and `port` were not parsed for unknown protocols/schemes.Safari: Before Safari 14.1, calling the `URL` constructor with a base URL whose value is `undefined` caused Safari to throw a `TypeError`, see bug 216841.Safari on iOS: Before Safari on iOS 14.1, calling the `URL` constructor with a base URL whose value is `undefined` caused Safari on iOS to throw a `TypeError`, see bug 216841.WebView on iOS: Before WebView on iOS 14.1, calling the `URL` constructor with a base URL whose value is `undefined` caused WebView on iOS to throw a `TypeError`, see bug 216841.
api.URL.canParse_static 📋	Firefox	7/4/2023	Chrome	12/5/2023	154
api.URL.createObjectURL_static 📋	Chrome	5/15/2012	Firefox	2/19/2013	280	Firefox: `createObjectURL()` is no longer available within the context of a `ServiceWorker`.Firefox for Android: `createObjectURL()` is no longer available within the context of a `ServiceWorker`.Internet Explorer: If the underlying object does not have a content type set, using this URL as the `src` of an `img` tag fails intermittently with error DOM7009.
api.URL.hash 📋	Firefox	6/25/2013	Chrome	1/14/2014	203
api.URL.host 📋	Firefox	6/25/2013	Chrome	1/14/2014	203
api.URL.hostname 📋	Firefox	6/25/2013	Safari	9/20/2016	1183
api.URL.href 📋	Firefox	6/25/2013	Safari	9/20/2016	1183
api.URL.origin 📋	Firefox	12/10/2013	Safari	9/20/2016	1015	Firefox: Before Firefox 49, Results for `URL` using the `blob` scheme incorrectly returned `null`.Firefox for Android: Before Firefox for Android 49, Results for `URL` using the `blob` scheme incorrectly returned `null`.
api.URL.parse_static 📋	Firefox	5/14/2024	Safari	9/16/2024	125
api.URL.password 📋	Firefox	12/10/2013	Safari	9/20/2016	1015
api.URL.pathname 📋	Firefox	6/25/2013	Safari	9/20/2016	1183	Firefox: Before Firefox 53, `pathname` and `search` returned wrong values for custom protocols. Given `protocol:host/x?a=true&b=false`, `pathname` would return "/x?a=true&b=false" and `search` would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.Firefox for Android: Before Firefox for Android 53, `pathname` and `search` returned wrong values for custom protocols. Given `protocol:host/x?a=true&b=false`, `pathname` would return "/x?a=true&b=false" and `search` would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.
api.URL.port 📋	Firefox	6/25/2013	Safari	9/20/2016	1183
api.URL.protocol 📋	Firefox	6/25/2013	Safari	9/20/2016	1183
api.URL.revokeObjectURL_static 📋	Chrome	5/15/2012	Firefox	2/19/2013	280	Firefox: `revokeObjectURL()` is no longer available within the context of a `ServiceWorker`.Firefox for Android: `revokeObjectURL()` is no longer available within the context of a `ServiceWorker`.
api.URL.search 📋	Firefox	6/25/2013	Safari	9/20/2016	1183	Firefox: Before Firefox 53, `pathname` and `search` returned wrong values for custom protocols. Given `protocol:host/x?a=true&b=false`, `pathname` would return "/x?a=true&b=false" and `search` would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.Firefox for Android: Before Firefox for Android 53, `pathname` and `search` returned wrong values for custom protocols. Given `protocol:host/x?a=true&b=false`, `pathname` would return "/x?a=true&b=false" and `search` would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.
api.URL.searchParams 📋	Firefox	4/29/2014	Safari	3/27/2017	1063	Node.js: An object matching the `URLSearchParams` interface is returned, but it contains no data.
api.URL.toJSON 📋	Firefox	6/13/2017	Chrome	12/4/2018	539
api.URL.toString 📋	Chrome	5/15/2012	Firefox	6/13/2017	1855
api.URL.username 📋	Firefox	12/10/2013	Safari	9/20/2016	1015
api.URLPattern 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.URLPattern 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.URLPattern.ignoreCase_option 📋	Chrome	10/25/2022	Safari	9/15/2025	1056
api.URLPattern.exec 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.hasRegExpGroups 📋	Chrome	2/20/2024	Safari	9/15/2025	573
api.URLPattern.hash 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.hostname 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.password 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.pathname 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.port 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.protocol 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.search 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.test 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLPattern.username 📋	Chrome	10/19/2021	Safari	9/15/2025	1427
api.URLSearchParams 📋	Firefox	4/29/2014	Safari	3/27/2017	1063	Firefox: Before version 57 single quotes in URLs were escaped (see bug 1386683).Firefox for Android: Before version 57 single quotes in URLs were escaped (see bug 1386683).Node.js: Available as a part of the `url` module.Node.js: Only available as an internal instance, but can be accessed via the `searchParams` property of the `URL` interface.Node.js: Available as a part of the `url` module.
api.URLSearchParams.@@iterator 📋	Firefox	1/26/2016	Safari	3/27/2017	426
api.URLSearchParams.URLSearchParams 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.URLSearchParams.USVString	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.URLSearchParams.record	Firefox	6/13/2017	Safari	9/19/2017	98
api.URLSearchParams.URLSearchParams.sequence	Chrome	4/19/2017	Safari	9/19/2017	153
api.URLSearchParams.append 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.delete 📋	Firefox	4/29/2014	Safari	9/16/2020	2332	Safari: Removing a non-existent query parameter doesn't remove `?` from the URL. See bug 193022.Safari on iOS: Removing a non-existent query parameter doesn't remove `?` from the URL. See bug 193022.WebView on iOS: Removing a non-existent query parameter doesn't remove `?` from the URL. See bug 193022.
api.URLSearchParams.delete.value_parameter	Firefox	7/4/2023	Safari	9/18/2023	76
api.URLSearchParams.entries 📋	Firefox	1/26/2016	Safari	3/27/2017	426
api.URLSearchParams.forEach 📋	Firefox	1/26/2016	Safari	3/27/2017	426
api.URLSearchParams.get 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.getAll 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.has 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.has.value_parameter	Firefox	7/4/2023	Safari	9/18/2023	76
api.URLSearchParams.keys 📋	Firefox	1/26/2016	Safari	3/27/2017	426
api.URLSearchParams.set 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.size 📋	Firefox	4/11/2023	Safari	9/18/2023	160
api.URLSearchParams.sort 📋	Firefox	6/13/2017	Safari	9/19/2017	98
api.URLSearchParams.toString 📋	Firefox	4/29/2014	Safari	3/27/2017	1063
api.URLSearchParams.values 📋	Firefox	1/26/2016	Safari	3/27/2017	426
api.UserActivation 📋	Chrome	1/29/2019	Firefox	11/21/2023	1757
api.UserActivation.hasBeenActive 📋	Chrome	1/29/2019	Firefox	11/21/2023	1757
api.UserActivation.isActive 📋	Chrome	1/29/2019	Firefox	11/21/2023	1757
api.VTTCue 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.VTTCue 📋	Chrome	2/20/2014	Safari	10/16/2014	238
api.VTTCue.align 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.getCueAsHTML 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.line 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.position 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.size 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.snapToLines 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.text 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.VTTCue.text.all_html_character_references	Chrome	12/6/2017	Firefox	6/11/2024	2379
api.VTTCue.vertical 📋	Safari	7/25/2012	Firefox	7/22/2014	727
api.ValidityState 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.badInput 📋	Chrome	2/21/2013	Firefox	4/29/2014	432
api.ValidityState.customError 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.patternMismatch 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.rangeOverflow 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.rangeUnderflow 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.stepMismatch 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.tooLong 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Edge: Not supported in the unlikely case of the value being initially set too long, and then changed by the user to a still incorrect state. Per caniuse.com.Firefox: Not supported in the unlikely case of the value being initially set too long, and then changed by the user to a still incorrect state. Per caniuse.com.
api.ValidityState.tooShort 📋	Chrome	1/21/2015	Firefox	1/24/2017	734
api.ValidityState.typeMismatch 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.valid 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.ValidityState.valueMissing 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
api.VideoColorSpace 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoColorSpace.VideoColorSpace 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoColorSpace.fullRange 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoColorSpace.matrix 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoColorSpace.primaries 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoColorSpace.toJSON 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoColorSpace.transfer 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.VideoDecoder 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.close 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.configure 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.decode 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.decodeQueueSize 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.dequeue_event 📋	Chrome	9/27/2022	Firefox	9/3/2024	707
api.VideoDecoder.flush 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.isConfigSupported_static 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.reset 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoDecoder.state 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.VideoEncoder 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.close 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.configure 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.dequeue_event 📋	Chrome	9/27/2022	Firefox	9/3/2024	707
api.VideoEncoder.encode 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.encodeQueueSize 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.flush 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.isConfigSupported_static 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.reset 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoEncoder.state 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.VideoFrame 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.allocationSize 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.clone 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.close 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.codedHeight 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.codedRect 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.codedWidth 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.colorSpace 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.copyTo 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.displayHeight 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.displayWidth 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.duration 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.format 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.timestamp 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoFrame.visibleRect 📋	Chrome	9/21/2021	Firefox	9/3/2024	1078
api.VideoPlaybackQuality 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.
api.VideoPlaybackQuality.creationTime 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.
api.VideoPlaybackQuality.droppedVideoFrames 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.
api.VideoPlaybackQuality.totalVideoFrames 📋	Chrome	11/6/2012	Firefox	11/3/2015	1092	Internet Explorer: Only works on Windows 8+.
api.VideoTrack 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrack.id 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrack.kind 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrack.label 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrack.language 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrack.selected 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrackList 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrackList.addtrack_event 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrackList.change_event 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrackList.getTrackById 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrackList.length 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrackList.removetrack_event 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.VideoTrackList.selectedIndex 📋	Safari	10/22/2013	Firefox	10/14/2014	357
api.ViewTransition 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
api.ViewTransition.finished 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
api.ViewTransition.ready 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
api.ViewTransition.skipTransition 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
api.ViewTransition.types 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransition.updateCallbackDone 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
api.ViewTransitionTypeSet 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.@@iterator	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.add	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.clear	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.delete	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.entries	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.forEach	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.has	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.keys	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.size	Chrome	5/14/2024	Firefox	1/13/2026	609
api.ViewTransitionTypeSet.values	Chrome	5/14/2024	Firefox	1/13/2026	609
api.VisualViewport 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.VisualViewport.height 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.VisualViewport.offsetLeft 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.VisualViewport.offsetTop 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.VisualViewport.pageLeft 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.VisualViewport.pageTop 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.VisualViewport.resize_event 📋	Chrome	10/17/2017	Firefox	8/10/2021	1393	Chrome: The `onresize` event handler property is not supported.Chrome Android: The `onresize` event handler property is not supported.Opera: The `onresize` event handler property is not supported.Opera Android: The `onresize` event handler property is not supported.WebView Android: The `onresize` event handler property is not supported.
api.VisualViewport.scale 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.VisualViewport.scroll_event 📋	Chrome	10/17/2017	Firefox	8/10/2021	1393	Chrome: The `onscroll` event handler property is not supported.Chrome Android: The `onscroll` event handler property is not supported.Opera: The `onscroll` event handler property is not supported.Opera Android: The `onscroll` event handler property is not supported.WebView Android: The `onscroll` event handler property is not supported.
api.VisualViewport.width 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.WEBGL_color_buffer_float 📋	Firefox	6/10/2014	Safari	9/16/2020	2290
api.WEBGL_compressed_texture_astc 📋	Chrome	12/1/2015	Safari	9/17/2018	1021
api.WEBGL_compressed_texture_astc.getSupportedProfiles 📋	Chrome	12/1/2015	Safari	9/17/2018	1021
api.WEBGL_compressed_texture_s3tc 📋	Chrome	3/26/2013	Safari	10/16/2014	569
api.WEBGL_compressed_texture_s3tc_srgb 📋	Chrome	7/25/2017	Safari	4/26/2021	1371
api.WEBGL_debug_renderer_info 📋	Chrome	2/20/2014	Firefox	4/19/2017	1154	Firefox: Deprecated, and may be removed in a future release (see bug 1722782).Firefox for Android: Deprecated, and may be removed in a future release (see bug 1722782).
api.WEBGL_debug_shaders 📋	Chrome	12/1/2015	Safari	9/16/2020	1751
api.WEBGL_debug_shaders.getTranslatedShaderSource 📋	Chrome	12/1/2015	Safari	9/16/2020	1751
api.WEBGL_depth_texture 📋	Chrome	3/26/2013	Safari	10/16/2014	569
api.WEBGL_draw_buffers 📋	Firefox	3/18/2014	Safari	9/30/2015	561
api.WEBGL_draw_buffers.drawBuffersWEBGL 📋	Firefox	3/18/2014	Safari	9/30/2015	561
api.WEBGL_lose_context 📋	Chrome	3/26/2013	Safari	10/16/2014	569
api.WEBGL_lose_context.loseContext 📋	Chrome	3/26/2013	Safari	10/16/2014	569
api.WEBGL_lose_context.restoreContext 📋	Chrome	3/26/2013	Safari	10/16/2014	569
api.WGSLLanguageFeatures 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.@@iterator 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.entries 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.forEach 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.has 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.keys 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.size 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.values 📋	Chrome	7/18/2023	Safari	9/15/2025	790	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WakeLock 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLock.request 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.release 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.release_event 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.released 📋	Chrome	11/17/2020	Firefox	5/14/2024	1274	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.type 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387	Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WaveShaperNode 📋	Chrome	10/25/2011	Firefox	10/29/2013	735
api.WaveShaperNode.WaveShaperNode 📋	Chrome	12/1/2016	Safari	4/26/2021	1607
api.WaveShaperNode.curve 📋	Chrome	10/25/2011	Firefox	10/29/2013	735
api.WaveShaperNode.oversample 📋	Safari	7/25/2012	Firefox	12/10/2013	503
api.WebGL2RenderingContext 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.activeTexture 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.attachShader 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.beginQuery 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.beginTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindAttribLocation 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindBuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindBufferBase 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindBufferRange 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindFramebuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindRenderbuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindSampler 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindTexture 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bindVertexArray 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.blendColor 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.blendEquation 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.blendEquationSeparate 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.blendFunc 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.blendFuncSeparate 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.blitFramebuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bufferData 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.bufferSubData 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.canvas 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.checkFramebufferStatus 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clear 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clearBufferfi 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clearBufferfv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clearBufferiv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clearBufferuiv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clearColor 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clearDepth 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clearStencil 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.clientWaitSync 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.colorMask 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.compileShader 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.compressedTexImage2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.compressedTexImage3D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.compressedTexSubImage2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.compressedTexSubImage3D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.copyBufferSubData 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.copyTexImage2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.copyTexSubImage2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.copyTexSubImage3D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createBuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createFramebuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createProgram 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createQuery 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createRenderbuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createSampler 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createShader 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createTexture 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.createVertexArray 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.cullFace 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteBuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteFramebuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteProgram 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteQuery 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteRenderbuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteSampler 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteShader 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteSync 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteTexture 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.deleteVertexArray 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.depthFunc 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.depthMask 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.depthRange 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.detachShader 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.disable 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.disableVertexAttribArray 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawArrays 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawArraysInstanced 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawBuffers 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawElements 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawElementsInstanced 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawRangeElements 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawingBufferColorSpace 📋	Chrome	8/2/2022	Firefox	10/29/2024	819	Firefox: Accidental early exposure with no functionality.Firefox for Android: Accidental early exposure with no functionality.
api.WebGL2RenderingContext.drawingBufferHeight 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.drawingBufferWidth 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.enable 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.enableVertexAttribArray 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.endQuery 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.endTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.fenceSync 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.finish 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.flush 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.framebufferRenderbuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.framebufferTexture2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.framebufferTextureLayer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.frontFace 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.generateMipmap 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getActiveAttrib 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getActiveUniform 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getActiveUniformBlockName 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getActiveUniformBlockParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getActiveUniforms 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getAttachedShaders 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getAttribLocation 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getBufferParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getBufferSubData 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getContextAttributes 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getError 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getExtension 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getFragDataLocation 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getFramebufferAttachmentParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getIndexedParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getInternalformatParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getProgramInfoLog 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getProgramParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getQuery 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getQueryParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getRenderbufferParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getSamplerParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getShaderInfoLog 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getShaderParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getShaderPrecisionFormat 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getShaderSource 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getSupportedExtensions 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getSyncParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getTexParameter 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getTransformFeedbackVarying 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getUniform 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getUniformBlockIndex 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getUniformIndices 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getUniformLocation 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getVertexAttrib 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.getVertexAttribOffset 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.hint 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.invalidateFramebuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.invalidateSubFramebuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isBuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isContextLost 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isEnabled 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isFramebuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isProgram 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isQuery 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isRenderbuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isSampler 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isShader 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isSync 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isTexture 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.isVertexArray 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.lineWidth 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.linkProgram 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.pauseTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.pixelStorei 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.polygonOffset 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.readBuffer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.readPixels 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.renderbufferStorage 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.renderbufferStorageMultisample 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.resumeTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.sampleCoverage 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.samplerParameterf 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.samplerParameteri 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.scissor 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.shaderSource 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.stencilFunc 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.stencilFuncSeparate 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.stencilMask 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.stencilMaskSeparate 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.stencilOp 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.stencilOpSeparate 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.texImage2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700	Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGL2RenderingContext.texImage3D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.texParameterf 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.texParameteri 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.texStorage2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.texStorage3D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.texSubImage2D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700	Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGL2RenderingContext.texSubImage3D 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.transformFeedbackVaryings 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform1f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform1fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform1i 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform1iv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform1ui 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform1uiv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform2f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform2fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform2i 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform2iv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform2ui 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform2uiv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform3f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform3fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform3i 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform3iv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform3ui 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform3uiv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform4f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform4fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform4i 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform4iv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform4ui 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniform4uiv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformBlockBinding 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix2fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix2x3fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix2x4fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix3fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix3x2fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix3x4fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix4fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix4x2fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.uniformMatrix4x3fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.useProgram 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.validateProgram 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib1f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib1fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib2f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib2fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib3f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib3fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib4f 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttrib4fv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttribDivisor 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttribI4i 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttribI4iv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttribI4ui 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttribI4uiv 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttribIPointer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.vertexAttribPointer 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.viewport 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGL2RenderingContext.waitSync 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGLActiveInfo 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLActiveInfo.name 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLActiveInfo.size 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLActiveInfo.type 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLBuffer 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLContextEvent 📋	Chrome	2/3/2011	Firefox	9/20/2016	2056
api.WebGLContextEvent.WebGLContextEvent 📋	Chrome	2/8/2012	Firefox	9/20/2016	1686
api.WebGLContextEvent.statusMessage 📋	Chrome	2/3/2011	Firefox	9/20/2016	2056
api.WebGLFramebuffer 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLProgram 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLQuery 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGLRenderbuffer 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLRenderingContext 📋	Chrome	2/3/2011	Safari	7/20/2011	167	Edge: To access the WebGL context, use `experimental-webgl` rather than the standard `webgl` identifier.Internet Explorer: To access the WebGL context, use `experimental-webgl` rather than the standard `webgl` identifier.
api.WebGLRenderingContext.activeTexture 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.attachShader 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.bindAttribLocation 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.bindBuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.bindFramebuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.bindRenderbuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.bindTexture 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.blendColor 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.blendEquation 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.blendEquationSeparate 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.blendFunc 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.blendFuncSeparate 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.bufferData 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.bufferSubData 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.canvas 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.checkFramebufferStatus 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.clear 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.clearColor 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.clearDepth 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.clearStencil 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.colorMask 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.compileShader 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.compressedTexImage2D 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.compressedTexSubImage2D 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.copyTexImage2D 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.copyTexSubImage2D 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.createBuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.createFramebuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.createProgram 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.createRenderbuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.createShader 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.createTexture 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.cullFace 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.deleteBuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.deleteFramebuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.deleteProgram 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.deleteRenderbuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.deleteShader 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.deleteTexture 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.depthFunc 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.depthMask 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.depthRange 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.detachShader 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.disable 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.disableVertexAttribArray 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.drawArrays 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.drawElements 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.drawingBufferColorSpace 📋	Chrome	8/2/2022	Firefox	10/29/2024	819	Firefox: Accidental early exposure with no functionality.Firefox for Android: Accidental early exposure with no functionality.
api.WebGLRenderingContext.drawingBufferHeight 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.drawingBufferWidth 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.enable 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.enableVertexAttribArray 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.finish 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.flush 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.framebufferRenderbuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.framebufferTexture2D 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.frontFace 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.generateMipmap 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getActiveAttrib 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getActiveUniform 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getAttachedShaders 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getAttribLocation 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getBufferParameter 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getContextAttributes 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getError 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getExtension 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getFramebufferAttachmentParameter 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getParameter 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getProgramInfoLog 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getProgramParameter 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getRenderbufferParameter 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getShaderInfoLog 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getShaderParameter 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getShaderPrecisionFormat 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getShaderSource 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getSupportedExtensions 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getTexParameter 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getUniform 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getUniformLocation 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getVertexAttrib 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.getVertexAttribOffset 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.hint 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isBuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isContextLost 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isEnabled 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isFramebuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isProgram 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isRenderbuffer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isShader 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.isTexture 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.lineWidth 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.linkProgram 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.pixelStorei 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.polygonOffset 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.readPixels 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.renderbufferStorage 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.sampleCoverage 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.scissor 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.shaderSource 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.stencilFunc 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.stencilFuncSeparate 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.stencilMask 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.stencilMaskSeparate 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.stencilOp 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.stencilOpSeparate 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.texImage2D 📋	Chrome	2/3/2011	Safari	7/20/2011	167	Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGLRenderingContext.texParameterf 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.texParameteri 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.texSubImage2D 📋	Chrome	2/3/2011	Safari	7/20/2011	167	Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGLRenderingContext.uniform1f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform1fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform1i 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform1iv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform2f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform2fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform2i 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform2iv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform3f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform3fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform3i 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform3iv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform4f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform4fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform4i 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniform4iv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniformMatrix2fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniformMatrix3fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.uniformMatrix4fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.useProgram 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.validateProgram 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib1f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib1fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib2f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib2fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib3f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib3fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib4f 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttrib4fv 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.vertexAttribPointer 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLRenderingContext.viewport 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLSampler 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGLShader 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLShaderPrecisionFormat 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLShaderPrecisionFormat.precision 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLShaderPrecisionFormat.rangeMax 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLShaderPrecisionFormat.rangeMin 📋	Chrome	2/3/2011	Safari	7/20/2011	167
api.WebGLSync 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGLTexture 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLTransformFeedback 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGLUniformLocation 📋	Chrome	3/8/2011	Safari	7/20/2011	134
api.WebGLVertexArrayObject 📋	Firefox	1/24/2017	Safari	9/20/2021	1700
api.WebGLVertexArrayObjectOES 📋	Safari	7/20/2011	Firefox	10/29/2013	832
api.WebSocket 📋	Chrome	5/25/2010	Firefox	3/13/2012	658	Firefox: Message size limited to 16 MB (see bug 711205).Firefox for Android: Message size limited to 16 MB (see bug 711205).
api.WebSocket.WebSocket 📋	Chrome	5/25/2010	Firefox	3/13/2012	658
api.WebSocket.WebSocket.url_parameter_http_https_relative	Safari	1/22/2024	Chrome	5/14/2024	113
api.WebSocket.binaryType 📋	Chrome	10/25/2011	Safari	7/25/2012	274
api.WebSocket.bufferedAmount 📋	Chrome	5/25/2010	Firefox	9/27/2011	490
api.WebSocket.close 📋	Chrome	5/25/2010	Firefox	9/27/2011	490
api.WebSocket.close_event 📋	Chrome	5/25/2010	Firefox	9/27/2011	490
api.WebSocket.error_event 📋	Chrome	5/25/2010	Firefox	9/27/2011	490
api.WebSocket.extensions 📋	Firefox	11/8/2011	Safari	7/25/2012	260
api.WebSocket.message_event 📋	Chrome	5/25/2010	Firefox	9/27/2011	490
api.WebSocket.open_event 📋	Chrome	5/25/2010	Firefox	9/27/2011	490
api.WebSocket.protocol 📋	Firefox	9/27/2011	Safari	7/25/2012	302
api.WebSocket.protocol_rfc_6455	Chrome	12/13/2011	Safari	7/25/2012	225
api.WebSocket.readyState 📋	Chrome	5/25/2010	Firefox	9/27/2011	490
api.WebSocket.send 📋	Chrome	5/25/2010	Firefox	1/8/2013	959	Firefox: Only parameter of type `ArrayBuffer` and `String` supported.Firefox: Only parameter of type `String` supported.Firefox: Only parameter of type `String` supported. Returns `boolean`.Firefox for Android: Only parameter of type `ArrayBuffer` and `String` supported.Firefox for Android: Only parameter of type `String` supported.Firefox for Android: Only parameter of type `String` supported. Returns `boolean`.
api.WebSocket.url 📋	Firefox	9/27/2011	Safari	7/25/2012	302
api.WebSocket.worker_support	Chrome	5/25/2010	Firefox	3/31/2015	1771
api.WheelEvent 📋	Safari	10/26/2007	Firefox	11/20/2012	1852
api.WheelEvent.WheelEvent 📋	Firefox	11/20/2012	Safari	10/22/2013	336
api.WheelEvent.deltaMode 📋	Firefox	11/20/2012	Safari	10/22/2013	336
api.WheelEvent.deltaX 📋	Firefox	11/20/2012	Safari	10/16/2014	695	Internet Explorer: IE9 supports an old draft of the spec where this value was a `long` instead of a `double`.
api.WheelEvent.deltaY 📋	Firefox	11/20/2012	Safari	10/16/2014	695	Internet Explorer: IE9 supports an old draft of the spec where this value was a `long` instead of a `double`.
api.WheelEvent.deltaZ 📋	Firefox	11/20/2012	Safari	10/16/2014	695	Internet Explorer: IE9 supports an old draft of the spec where this value was a `long` instead of a `double`.
api.WheelEvent.pinch_to_zoom_support	Chrome	11/12/2013	Safari	9/20/2021	2869
api.WheelEvent.wheelDelta	Safari	10/26/2007	Firefox	7/13/2021	5009
api.WheelEvent.wheelDeltaX	Safari	10/26/2007	Firefox	7/13/2021	5009
api.WheelEvent.wheelDeltaY	Safari	10/26/2007	Firefox	7/13/2021	5009
api.Window 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Node.js: The `Window` interface is not implemented, but some methods, and properties are available in the global scope.
api.Window.DOMContentLoaded_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.afterprint_event 📋	Firefox	8/16/2011	Safari	9/19/2019	2956
api.Window.alert 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Starting with Chrome 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera Android: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.WebView Android: Starting with WebView Android 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.
api.Window.beforeprint_event 📋	Firefox	8/16/2011	Safari	9/19/2019	2956
api.Window.beforeunload_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.beforeunload_event.event_returnvalue_activation	Firefox	8/16/2011	Chrome	10/31/2023	4459	Chrome: Before Chrome 119, an empty string incorrectly activated the confirmation dialog.Chrome Android: Before Chrome Android 119, an empty string incorrectly activated the confirmation dialog.Edge: Before Edge 119, an empty string incorrectly activated the confirmation dialog.Quest Browser: Before Quest Browser false, an empty string incorrectly activated the confirmation dialog.Opera: Before Opera 105, an empty string incorrectly activated the confirmation dialog.Opera Android: Before Opera Android 79, an empty string incorrectly activated the confirmation dialog.Samsung Internet: Before Samsung Internet 25.0, an empty string incorrectly activated the confirmation dialog.WebView Android: Before WebView Android 119, an empty string incorrectly activated the confirmation dialog.
api.Window.beforeunload_event.generic_string_displayed	Firefox	1/26/2016	Chrome	5/25/2016	120
api.Window.beforeunload_event.preventdefault_activation	Firefox	8/16/2011	Chrome	10/31/2023	4459
api.Window.beforeunload_event.return_string_activation	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.blur 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.blur_event 📋	Chrome	5/25/2010	Firefox	8/16/2011	448	Firefox: Apart from firing the event on `window` as other browsers do, Firefox also fires the event on the `document` object. See bug 1228802.Firefox: Before Firefox 24, the interface for this event is a plain `Event`, not `FocusEvent`.Firefox for Android: Apart from firing the event on `window` as other browsers do, Firefox for Android also fires the event on the `document` object. See bug 1228802.Firefox for Android: Before Firefox for Android 24, the interface for this event is a plain `Event`, not `FocusEvent`.
api.Window.cancelAnimationFrame 📋	Chrome	1/10/2013	Safari	10/22/2013	285
api.Window.captureEvents 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.close 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Before Chrome 95, script-closeability depended on having an opener, not on being created by web content.Chrome Android: Before Chrome Android 95, script-closeability depended on having an opener, not on being created by web content.Deno: Exits the current Deno process.Firefox: Before Firefox 128, script-closeability depended on having an opener, not on being created by web content.Firefox for Android: Before Firefox for Android 128, script-closeability depended on having an opener, not on being created by web content.Quest Browser: Before Quest Browser 18.0, script-closeability depended on having an opener, not on being created by web content.Samsung Internet: Before Samsung Internet 17.0, script-closeability depended on having an opener, not on being created by web content.WebView Android: Before WebView Android 95, script-closeability depended on having an opener, not on being created by web content.
api.Window.closed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.confirm 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Starting with Chrome 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera Android: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.WebView Android: Starting with Chrome 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.
api.Window.cookieStore 📋	Chrome	11/17/2020	Firefox	6/24/2025	1680
api.Window.customElements 📋	Chrome	10/12/2016	Firefox	10/23/2018	741
api.Window.devicePixelRatio 📋	Safari	10/26/2007	Firefox	1/8/2013	1901	Safari: In Safari, the `devicePixelRatio` does not change when the page is zoomed. See bug 124862.Safari on iOS: In Safari on iOS, the `devicePixelRatio` does not change when the page is zoomed. See bug 124862.WebView on iOS: In WebView on iOS, the `devicePixelRatio` does not change when the page is zoomed. See bug 124862.
api.Window.devicemotion_event 📋	Firefox	8/16/2011	Safari	9/18/2023	4416
api.Window.deviceorientation_event 📋	Chrome	10/19/2010	Safari	9/18/2023	4717
api.Window.document 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.error_event 📋	Chrome	3/8/2011	Firefox	8/16/2011	161
api.Window.event 📋	Safari	10/24/2003	Firefox	3/19/2019	5625
api.Window.find	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.focus 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Starting in Chrome 66, opening a popup in fullscreen mode and calling this function will end fullscreen mode.
api.Window.focus_event 📋	Chrome	5/25/2010	Firefox	8/16/2011	448	Firefox: Apart from firing the event on `window` as other browsers do, Firefox also fires the event on the `document` object. See bug 1228802.Firefox: Before Firefox 24, the interface for this event is a plain `Event`, not `FocusEvent`.Firefox for Android: Apart from firing the event on `window` as other browsers do, Firefox for Android also fires the event on the `document` object. See bug 1228802.Firefox for Android: Before Firefox for Android 24, the interface for this event is a plain `Event`, not `FocusEvent`.
api.Window.frameElement 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.frames 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.gamepadconnected_event 📋	Firefox	6/1/2021	Chrome	12/2/2025	1645	Chrome: The `ongamepadconnected` event handler property is not supported. See bug 40175074.Chrome Android: The `ongamepadconnected` event handler property is not supported. See bug 40175074.Edge: The `ongamepadconnected` event handler property is not supported. See bug 40175074.Firefox: The `ongamepadconnected` event handler property is not supported. See bug 1697093.Firefox for Android: The `ongamepadconnected` event handler property is not supported. See bug 1697093.Quest Browser: The `ongamepadconnected` event handler property is not supported. See bug 40175074.Opera: The `ongamepadconnected` event handler property is not supported. See bug 40175074.Opera Android: The `ongamepadconnected` event handler property is not supported. See bug 40175074.Safari: The `ongamepadconnected` event handler property is not supported. See bug 223860.Safari on iOS: The `ongamepadconnected` event handler property is not supported. See bug 223860.Samsung Internet: The `ongamepadconnected` event handler property is not supported. See bug 40175074.WebView Android: The `ongamepadconnected` event handler property is not supported. See bug 40175074.WebView on iOS: The `ongamepadconnected` event handler property is not supported. See bug 223860.
api.Window.gamepaddisconnected_event 📋	Firefox	6/1/2021	Chrome	12/2/2025	1645	Chrome: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.Chrome Android: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.Edge: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.Firefox: The `ongamepaddisconnected` event handler property is not supported. See bug 1697093.Firefox for Android: The `ongamepaddisconnected` event handler property is not supported. See bug 1697093.Quest Browser: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.Opera: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.Opera Android: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.Safari: The `ongamepaddisconnected` event handler property is not supported. See bug 223860.Safari on iOS: The `ongamepaddisconnected` event handler property is not supported. See bug 223860.Samsung Internet: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.WebView Android: The `ongamepaddisconnected` event handler property is not supported. See bug 40175074.WebView on iOS: The `ongamepaddisconnected` event handler property is not supported. See bug 223860.
api.Window.getComputedStyle 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: Before version 62 this function returned `null` when called on a Window with no presentation (e.g. an iframe with `display: none;` set). Since 62 it returns a `CSSStyleDeclaration` object with `length` 0, containing empty strings (bug 1467722; also see bug 1471231 for further work).Firefox for Android: Before version 62 this function returned `null` when called on a Window with no presentation (e.g. an iframe with `display: none;` set). Since 62 it returns a `CSSStyleDeclaration` object with `length` 0, containing empty strings (bug 1467722; also see bug 1471231 for further work).
api.Window.getComputedStyle.pseudo_element_support	Firefox	6/30/2009	Safari	7/20/2011	750
api.Window.getSelection 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.hashchange_event 📋	Firefox	1/21/2010	Chrome	12/2/2010	315	Chrome: A regular `Event` object is fired, rather than a `HashChangeEvent` object.
api.Window.history 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.innerHeight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Firefox for Android: Before version 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Safari on iOS: This property returns the height of the visual viewport instead of the layout viewport. See bug 174362 for details.WebView on iOS: This property returns the height of the visual viewport instead of the layout viewport. See bug 174362 for details.
api.Window.innerWidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Firefox for Android: Before version 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Safari on iOS: This property returns the width of the visual viewport instead of the layout viewport. See bug 174362 for details.WebView on iOS: This property returns the width of the visual viewport instead of the layout viewport. See bug 174362 for details.
api.Window.languagechange_event 📋	Chrome	8/26/2014	Safari	3/27/2017	944
api.Window.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.load_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.localStorage 📋	Safari	6/8/2009	Chrome	1/25/2010	231	Deno: The key used for the Web Storage bucket is based on various factors. See the Deno manual.
api.Window.location 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Deno: Reflects the value passed via the `--location` runtime flag.Firefox: Before Firefox 57, single quotes contained in URLs were escaped when accessed via URL APIs. See bug 1386683.Firefox for Android: Before Firefox for Android 57, single quotes contained in URLs were escaped when accessed via URL APIs. See bug 1386683.
api.Window.locationbar 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.matchMedia 📋	Chrome	2/3/2011	Firefox	8/16/2011	194
api.Window.menubar 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.message_event 📋	Safari	6/8/2009	Chrome	7/25/2017	2969
api.Window.messageerror_event 📋	Chrome	7/25/2017	Safari	3/27/2023	2071
api.Window.moveBy 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.moveTo 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.moveTo.relative-multi-screen	Safari	6/23/2003	Chrome	3/29/2022	6854	Chrome: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Chrome Android: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Edge: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Firefox: Multi-screen coordinates are used, but windows are clamped to their existing displays.Firefox for Android: Multi-screen coordinates are used, but windows are clamped to their existing displays.Quest Browser: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera Android: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.Samsung Internet: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView Android: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 86, if a new page from another domain is loaded into a tab, then `window.name` is not set to an empty string, which can allow some cross-site attacks. See bug 1685089 and bug 444222.Firefox for Android: Before Firefox for Android 86, if a new page from another domain is loaded into a tab, then `window.name` is not set to an empty string, which can allow some cross-site attacks. See bug 1685089 and bug 444222.
api.Window.navigation 📋	Chrome	5/24/2022	Firefox	1/13/2026	1330
api.Window.navigator 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.offline_event 📋	Safari	6/8/2009	Firefox	12/20/2011	925
api.Window.online_event 📋	Safari	6/8/2009	Firefox	12/20/2011	925
api.Window.open 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Safari on iOS: This method will not function if the `target` parameter is unspecified or set to `_blank`.WebView on iOS: This method will not function if the `target` parameter is unspecified or set to `_blank`.
api.Window.open.once_per_event	Chrome	11/6/2012	Firefox	1/29/2019	2275
api.Window.open.relative-multi-screen	Safari	6/23/2003	Chrome	3/29/2022	6854	Chrome: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Chrome Android: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Edge: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Quest Browser: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera Android: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.Samsung Internet: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView Android: Without the `window-management` permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.opener 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.outerHeight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.outerWidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.pagehide_event 📋	Chrome	9/15/2009	Firefox	8/16/2011	700
api.Window.pageshow_event 📋	Chrome	9/15/2009	Firefox	8/16/2011	700
api.Window.parent 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.personalbar 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.popstate_event 📋	Chrome	5/25/2010	Firefox	3/22/2011	301	Chrome: Before version 34, Chrome would fire a `popstate` event on page load.Chrome Android: Before version 34, Chrome Android would fire a `popstate` event on page load.Quest Browser: Before version 5.0, Quest Browser would fire a `popstate` event on page load.Safari: Before version 10, Safari would fire a `popstate` event on page load.Safari on iOS: Before version 10, Safari on iOS would fire a `popstate` event on page load.Samsung Internet: Before version 2.0, Samsung Internet would fire a `popstate` event on page load.WebView Android: Before version 37, WebView Android would fire a `popstate` event on page load.WebView on iOS: Before version 10, WebView on iOS would fire a `popstate` event on page load.
api.Window.postMessage 📋	Firefox	6/17/2008	Safari	6/8/2009	356	Firefox: Firefox 8 and up supports sending `File` and `FileList` objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.Firefox: Before Firefox 6, the `message` parameter must be a string. Since Firefox 6, the `message` parameter is serialized using the structured clone algorithm. This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself.Firefox for Android: Firefox for Android 8 and up supports sending `File` and `FileList` objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.Firefox for Android: Before Firefox for Android 6, the `message` parameter must be a string. Since Firefox for Android 6, the `message` parameter is serialized using the structured clone algorithm. This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself.Internet Explorer: IE10 had an important limitation: see this article for details.Internet Explorer: Support only for `<frame>` and `<iframe>`.
api.Window.postMessage.transfer_parameter	Chrome	1/25/2010	Firefox	4/2/2013	1163
api.Window.print 📋	Safari	10/24/2003	Chrome	12/11/2008	1875	Chrome: Starting with Chrome 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera Android: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.WebView Android: Starting with WebView Android 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.
api.Window.prompt 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Starting with Chrome 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Firefox: Firefox strips newline characters from the prompt response; see bug 1716229.Firefox for Android: Firefox for Android strips newline characters from the prompt response; see bug 1716229.Internet Explorer: This function has no effect in the Modern UI/Metro version of Internet Explorer for Windows 8. It does not display a prompt to the user, and always returns `undefined`. It is not clear whether this is a bug or intended behavior. Desktop versions of IE do implement this function.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Opera Android: Starting with Opera 33, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.WebView Android: Starting with WebView Android 46, this method is blocked inside an `<iframe>` unless its sandbox attribute has the value `allow-modals`.
api.Window.rejectionhandled_event 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280
api.Window.releaseEvents 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.requestAnimationFrame 📋	Chrome	1/10/2013	Safari	10/22/2013	285	Edge: Before version 17, Edge does not reliably fire `requestAnimationFrame` before the paint cycle.Firefox: Callback parameter is a `DOMHighResTimestamp`. This means ten microsecond precision and zero time as `performance.now()`.Firefox: Callback parameter is a `DOMTimestamp`. This means millisecond precision and zero time as `Date.now()`.Firefox: Could be called with no input parameters.Internet Explorer: Internet Explorer does not reliably fire `requestAnimationFrame` before the paint cycle.
api.Window.resizeBy 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by `window.open` or contains more than one tab. See here for more details.
api.Window.resizeTo 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by `window.open` or contains more than one tab. See here for more details.
api.Window.resize_event 📋	Safari	10/24/2003	Chrome	12/11/2008	1875	Chrome: Chrome does not fire a `resize` event on page load.Chrome Android: Chrome Android does not fire a `resize` event on page load.Edge: Before Edge 79, Edge fired a `resize` event on page load. This is no longer the case.Firefox: Before Firefox 68, Firefox fired a `resize` event on page load. This is no longer the case.Firefox for Android: Before Firefox for Android 68, Firefox for Android fired a `resize` event on page load. This is no longer the case.Quest Browser: Quest Browser does not fire a `resize` event on page load.Opera: Opera does not fire a `resize` event on page load.Opera Android: Opera does not fire a `resize` event on page load.Samsung Internet: Samsung Internet does not fire a `resize` event on page load.WebView Android: WebView does not fire a `resize` event on page load.
api.Window.screen 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.screenLeft 📋	Safari	6/23/2003	Firefox	12/11/2018	5650
api.Window.screenLeft.relative-multi-screen	Safari	6/23/2003	Chrome	3/29/2022	6854	Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.screenTop 📋	Safari	6/23/2003	Firefox	12/11/2018	5650
api.Window.screenTop.relative-multi-screen	Safari	6/23/2003	Chrome	3/29/2022	6854	Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.screenX 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of `screenPixelsPerCSSPixel` of 1 for any device.Firefox for Android: Before Firefox for Android 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of `screenPixelsPerCSSPixel` of 1 for any device.
api.Window.screenX.relative-multi-screen	Safari	6/23/2003	Chrome	3/29/2022	6854	Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.screenY 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of `screenPixelsPerCSSPixel` of 1 for any device.Firefox for Android: Before Firefox for Android 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of `screenPixelsPerCSSPixel` of 1 for any device.
api.Window.screenY.relative-multi-screen	Safari	6/23/2003	Chrome	3/29/2022	6854	Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.scroll 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.scroll.options_behavior_parameter	Firefox	2/24/2015	Safari	9/16/2020	2031	Safari: Safari does not have support for the `smooth` scroll behavior.Safari on iOS: Safari on iOS does not have support for the `smooth` scroll behavior.WebView on iOS: WebView on iOS does not have support for the `smooth` scroll behavior.
api.Window.scroll.options_left_parameter	Firefox	2/24/2015	Safari	3/27/2017	762
api.Window.scroll.options_top_parameter	Firefox	2/24/2015	Safari	3/27/2017	762
api.Window.scrollBy 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.scrollBy.options_behavior_parameter	Firefox	2/24/2015	Safari	9/16/2020	2031	Safari: Safari does not have support for the `smooth` scroll behavior.Safari on iOS: Safari on iOS does not have support for the `smooth` scroll behavior.WebView on iOS: WebView on iOS does not have support for the `smooth` scroll behavior.
api.Window.scrollBy.options_left_parameter	Firefox	2/24/2015	Safari	3/27/2017	762
api.Window.scrollBy.options_top_parameter	Firefox	2/24/2015	Safari	3/27/2017	762
api.Window.scrollTo 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.scrollTo.options_behavior_parameter	Firefox	2/24/2015	Safari	9/16/2020	2031	Safari: Before version 15.4, Safari did not have support for the `smooth` scroll behavior.Safari on iOS: Before version 15.4, Safari on iOS did not have support for the `smooth` scroll behavior.WebView on iOS: Before version 15.4, WebView on iOS did not have support for the `smooth` scroll behavior.
api.Window.scrollTo.options_left_parameter	Firefox	2/24/2015	Safari	3/27/2017	762
api.Window.scrollTo.options_top_parameter	Firefox	2/24/2015	Safari	3/27/2017	762
api.Window.scrollX 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.scrollY 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.scrollbars 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.self 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.sessionStorage 📋	Firefox	10/24/2006	Chrome	1/25/2010	1189
api.Window.speechSynthesis 📋	Safari	10/22/2013	Firefox	9/20/2016	1064
api.Window.status 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.Window.statusbar 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.stop 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.storage_event 📋	Chrome	12/11/2008	Firefox	3/8/2016	2644
api.Window.toolbar 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.top 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: Starting in Firefox 6, this property is read only, as defined by the standard.
api.Window.unhandledrejection_event 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280	Firefox: `event.preventDefault()` does not prevent Firefox from logging the error message in the console, see bug 1642147.Firefox for Android: `event.preventDefault()` does not prevent Firefox for Android from logging the error message in the console, see bug 1642147.
api.Window.unload_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.Window.visualViewport 📋	Chrome	9/5/2017	Firefox	8/10/2021	1435
api.Window.window 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.WindowClient 📋	Chrome	4/14/2015	Safari	4/12/2018	1094
api.WindowClient.focus 📋	Chrome	4/14/2015	Safari	4/12/2018	1094
api.WindowClient.focused 📋	Chrome	4/14/2015	Safari	4/12/2018	1094
api.WindowClient.navigate 📋	Chrome	3/2/2016	Safari	9/12/2022	2385	Safari: This method exists, but always throws `NotSupportedError`.Safari on iOS: This method exists, but always throws `NotSupportedError`.
api.WindowClient.visibilityState 📋	Chrome	4/14/2015	Safari	4/12/2018	1094
api.Worker 📋	Chrome	5/21/2009	Firefox	6/30/2009	40	Node.js: Inherits from a Node `EventEmitter` instead of DOM `EventTarget`.Node.js: Also supports CommonJS modules, enabled for files ending with `.cjs` and for files ending with `.js` when the nearest parent `package.json` file contains a top-level field `"type"` with a value not of `"commonjs"`.Node.js: Available as a part of the `worker_threads` module.
api.Worker.Worker 📋	Safari	6/8/2009	Chrome	1/25/2010	231	Node.js: Takes entirely different options parameters.
api.Worker.Worker.ecmascript_modules	Chrome	2/4/2020	Firefox	6/6/2023	1218	Node.js: ECMAScript modules are enabled for files ending with `.mjs` and for files ending with `.js` when the nearest parent `package.json` file contains a top-level field `"type"` with a value of `"module"`.Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.WebView on iOS: Nested workers support was introduced in WebView on iOS 15.5.WebView on iOS: Script loading in nested workers was introduced in WebView on iOS 16.4.
api.Worker.Worker.options_name_parameter	Firefox	8/8/2017	Safari	3/25/2019	594
api.Worker.Worker.options_type_parameter	Chrome	2/4/2020	Firefox	6/6/2023	1218	Deno: Only supports `module`
api.Worker.error_event 📋	Safari	6/8/2009	Chrome	1/25/2010	231	Node.js: Supports the event, but only via Node `EventEmitter`.
api.Worker.message_event 📋	Safari	6/8/2009	Chrome	1/25/2010	231	Node.js: Supports the event, but only via Node `EventEmitter`.
api.Worker.postMessage 📋	Chrome	5/21/2009	Firefox	6/30/2009	40	Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown.Deno: The `message` parameter does not support `SharedArrayBuffer`.Deno: The `transfer` parameter is not supported, and results in an error being thrown.Deno: Data passed in the `message` parameter is serialized with JSON, not the structured clone algorithm.Deno: The `transfer` parameter is not supported, and results in an error being thrown.Internet Explorer: Internet Explorer does not support `Transferable` objects.Node.js: Only accepts an array of transfer objects as the second parameter, not an options object with a `transfer` property.Node.js: Only supports transferring `ArrayBuffer` and `MessagePort` objects.
api.Worker.terminate 📋	Chrome	5/21/2009	Firefox	6/30/2009	40	Node.js: Returns a `Promise`.Node.js: Takes an optional callback parameter to be executed when the worker has terminated.
api.Worker.worker_support	Firefox	12/1/2014	Safari	3/27/2023	3038	Chrome: Not available in Shared Workers. See bug 40695450.Chrome Android: Not available in Shared Workers. See bug 40695450.Edge: Not available in Shared Workers. See bug 40695450.Quest Browser: Not available in Shared Workers. See bug 40695450.Opera: Not available in Shared Workers. See bug 40695450.Opera Android: Not available in Shared Workers. See bug 40695450.Safari: Not available in Shared Workers. See bug 265263.Safari on iOS: Not available in Shared Workers. See bug 265263.Samsung Internet: Not available in Shared Workers. See bug 40695450.WebView Android: Not available in Shared Workers. See bug 40695450.WebView on iOS: Not available in Shared Workers. See bug 265263.
api.WorkerGlobalScope 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerGlobalScope.error_event 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerGlobalScope.fonts 📋	Chrome	9/4/2018	Firefox	9/20/2022	1477
api.WorkerGlobalScope.importScripts 📋	Safari	6/8/2009	Firefox	3/22/2011	652
api.WorkerGlobalScope.importScripts.mime_checks	Chrome	12/4/2018	Safari	9/12/2022	1378
api.WorkerGlobalScope.location 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerGlobalScope.navigator 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerGlobalScope.rejectionhandled_event 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280
api.WorkerGlobalScope.securitypolicyviolation_event 📋	Chrome	3/3/2015	Firefox	10/23/2018	1330
api.WorkerGlobalScope.self 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerGlobalScope.unhandledrejection_event 📋	Chrome	3/2/2016	Firefox	9/3/2019	1280
api.WorkerLocation 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.hash 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.host 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.hostname 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.href 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.origin 📋	Firefox	4/29/2014	Safari	9/20/2016	875
api.WorkerLocation.pathname 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.port 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.protocol 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.search 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerLocation.toString 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerNavigator 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerNavigator.appCodeName 📋	Firefox	6/30/2009	Safari	9/20/2016	2639
api.WorkerNavigator.appName 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerNavigator.appVersion 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.WorkerNavigator.gpu 📋	Chrome	5/2/2023	Safari	9/15/2025	867	Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WorkerNavigator.hardwareConcurrency 📋	Chrome	8/26/2014	Safari	3/14/2022	2757	Safari: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.Safari on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.WebView on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.
api.WorkerNavigator.language 📋	Firefox	6/30/2009	Safari	9/20/2016	2639	Firefox: Before Firefox 4, this property's value was also part of the user agent string, as reported by `navigator.userAgent`. Starting in Firefox 5, this property's value is based on the value of the `Accept-Language` HTTP header.Internet Explorer: Closest available (non-standard) properties are `userLanguage` and `browserLanguage`.
api.WorkerNavigator.languages 📋	Chrome	8/26/2014	Safari	3/27/2017	944	Chrome: Before Chrome 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.Chrome Android: Before Chrome Android 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.Firefox: In Firefox, the `navigator.languages` property's value is taken from the `intl.accept_languages` preference.Firefox for Android: In Firefox for Android, the `navigator.languages` property's value is taken from the `intl.accept_languages` preference.Internet Explorer: Closest available (non-standard) properties are `userLanguage` and `browserLanguage`.Quest Browser: Before Quest Browser 5.0, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.WebView Android: Before version 65, `navigator.languages[0]` is not guaranteed to equal `navigator.language`.
api.WorkerNavigator.locks 📋	Chrome	9/4/2018	Safari	3/14/2022	1287
api.WorkerNavigator.mediaCapabilities 📋	Firefox	10/23/2018	Safari	3/14/2022	1238
api.WorkerNavigator.onLine 📋	Safari	6/8/2009	Chrome	1/25/2010	231	Firefox: Since Firefox 4 the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return `false`).Opera: From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity.Opera Android: From Opera 11.1 until Opera 12.1, the browser returns `true` when 'Work Offline' mode is disabled and `false` when it is enabled, regardless of actual connectivity.WebView Android: Can incorrectly return true, see bug 41369933.
api.WorkerNavigator.permissions 📋	Chrome	5/19/2015	Firefox	11/26/2024	3479
api.WorkerNavigator.platform 📋	Safari	6/8/2009	Chrome	1/25/2010	231	Firefox: Before Firefox 69, `platform` would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.Firefox: You can override the value returned by `platform` by setting the preference `general.platform.override` to the string you wish to be returned instead.
api.WorkerNavigator.product 📋	Firefox	6/30/2009	Safari	9/20/2016	2639
api.WorkerNavigator.storage 📋	Chrome	12/1/2016	Safari	12/13/2021	1838
api.WorkerNavigator.userAgent 📋	Safari	6/8/2009	Chrome	1/25/2010	231
api.Worklet 📋	Chrome	3/6/2018	Safari	4/26/2021	1147
api.Worklet.addModule 📋	Chrome	3/6/2018	Safari	4/26/2021	1147
api.Worklet.ecmascript_modules	Chrome	2/4/2020	Firefox	6/6/2023	1218	Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.WebView on iOS: Nested workers support was introduced in WebView on iOS 15.5.WebView on iOS: Script loading in nested workers was introduced in WebView on iOS 16.4.
api.WorkletGlobalScope 📋	Chrome	3/6/2018	Safari	4/26/2021	1147
api.WritableStream 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793	Node.js: Available as a part of the `stream/web` module.
api.WritableStream.WritableStream 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStream.abort 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStream.close 📋	Chrome	4/7/2020	Firefox	5/3/2022	756
api.WritableStream.getWriter 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStream.locked 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultController 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793	Node.js: Available as a part of the `stream/web` module.
api.WritableStreamDefaultController.error 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultController.signal 📋	Chrome	2/1/2022	Safari	3/27/2023	419
api.WritableStreamDefaultWriter 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793	Node.js: Available as a part of the `stream/web` module.
api.WritableStreamDefaultWriter.WritableStreamDefaultWriter 📋	Chrome	10/22/2019	Firefox	5/3/2022	924
api.WritableStreamDefaultWriter.abort 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultWriter.close 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultWriter.closed 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultWriter.desiredSize 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultWriter.ready 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultWriter.releaseLock 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.WritableStreamDefaultWriter.write 📋	Chrome	6/5/2017	Firefox	5/3/2022	1793
api.XMLDocument 📋	Firefox	11/9/2004	Safari	9/20/2016	4333	Chrome: Implemented as an alias for `Document`.Chrome Android: Implemented as an alias for `Document`.Opera: Implemented as an alias for `Document`.Opera Android: Implemented as an alias for `Document`.Safari: Implemented as an alias for `Document`.Safari on iOS: Implemented as an alias for `Document`.Samsung Internet: Implemented as an alias for `Document`.WebView Android: Implemented as an alias for `Document`.WebView on iOS: Implemented as an alias for `Document`.
api.XMLHttpRequest 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Internet Explorer: Implemented via `ActiveXObject('Microsoft.XMLHTTP')`
api.XMLHttpRequest.XMLHttpRequest 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XMLHttpRequest.abort 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.XMLHttpRequest.abort_event 📋	Safari	4/15/2005	Firefox	6/30/2009	1537
api.XMLHttpRequest.error_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XMLHttpRequest.getAllResponseHeaders 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Starting from Firefox 49, empty headers are returned as empty strings in case the preference `network.http.keep_empty_response_headers_as_empty_string` is set to `true`, defaulting to `false`. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to `true`.Firefox for Android: Starting from Firefox for Android 49, empty headers are returned as empty strings in case the preference `network.http.keep_empty_response_headers_as_empty_string` is set to `true`, defaulting to `false`. Before Firefox for Android 49 empty headers had been ignored. Since Firefox for Android 50 the preference defaults to `true`.
api.XMLHttpRequest.getAllResponseHeaders.header_names_lowercase	Chrome	7/25/2017	Firefox	12/11/2018	504
api.XMLHttpRequest.getResponseHeader 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Starting from Firefox 49, empty headers are returned as empty strings in case the preference `network.http.keep_empty_response_headers_as_empty_string` is set to `true`, defaulting to `false`. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to `true`.Firefox for Android: Starting from Firefox for Android 49, empty headers are returned as empty strings in case the preference `network.http.keep_empty_response_headers_as_empty_string` is set to `true`, defaulting to `false`. Before Firefox for Android 49 empty headers had been ignored. Since Firefox for Android 50 the preference defaults to `true`.
api.XMLHttpRequest.load_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XMLHttpRequest.loadend_event 📋	Safari	6/8/2009	Chrome	3/28/2012	1024
api.XMLHttpRequest.loadstart_event 📋	Safari	4/15/2005	Firefox	6/30/2009	1537
api.XMLHttpRequest.open 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Starting in Firefox 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the `async` parameter may not be `false` except in a `Worker`.Firefox for Android: Starting in Firefox for Android 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the `async` parameter may not be `false` except in a `Worker`.
api.XMLHttpRequest.overrideMimeType 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Internet Explorer: Implemented via `ActiveXObject`
api.XMLHttpRequest.progress_event 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XMLHttpRequest.readyState 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.XMLHttpRequest.readystatechange_event 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.XMLHttpRequest.response 📋	Chrome	2/3/2011	Firefox	8/16/2011	194
api.XMLHttpRequest.responseText 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Internet Explorer: Before Internet Explorer 10, the value of `XMLHttpRequest.responseText` could be read only once the request was complete.
api.XMLHttpRequest.responseType 📋	Safari	7/20/2011	Chrome	11/12/2013	846
api.XMLHttpRequest.responseType.arraybuffer_value	Safari	7/20/2011	Chrome	11/12/2013	846
api.XMLHttpRequest.responseType.blob_value	Safari	7/20/2011	Chrome	11/12/2013	846
api.XMLHttpRequest.responseType.document_value	Firefox	3/13/2012	Chrome	11/12/2013	609
api.XMLHttpRequest.responseType.json_value	Firefox	1/31/2012	Chrome	11/12/2013	651
api.XMLHttpRequest.responseURL 📋	Chrome	8/26/2014	Safari	10/16/2014	51
api.XMLHttpRequest.responseXML 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: Before Firefox 51, an error parsing the received data added a `<parsererror>` node to the top of the `Document` and then returned the `Document` in whatever state it happens to be in. This was inconsistent with the specification. Starting with Firefox 51, this scenario now correctly returns `null` as per the spec.Firefox for Android: Before Firefox for Android 51, an error parsing the received data added a `<parsererror>` node to the top of the `Document` and then returned the `Document` in whatever state it happens to be in. This was inconsistent with the specification. Starting with Firefox for Android 51, this scenario now correctly returns `null` as per the spec.
api.XMLHttpRequest.send 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.XMLHttpRequest.send.body_ArrayBufferView_type	Chrome	9/25/2012	Safari	10/22/2013	392
api.XMLHttpRequest.send.body_ArrayBuffer_type	Chrome	2/3/2011	Safari	7/25/2012	538
api.XMLHttpRequest.send.body_Blob_type	Firefox	10/24/2006	Chrome	9/25/2012	2163
api.XMLHttpRequest.send.body_FormData_type	Firefox	10/24/2006	Safari	7/25/2012	2101
api.XMLHttpRequest.send.body_URLSearchParams_type	Firefox	1/26/2016	Safari	9/20/2021	2064	Safari: Doesn't send the correct `Content-Type` header by default. See bug 227477.Safari on iOS: Doesn't send the correct `Content-Type` header by default. See bug 227477.WebView on iOS: Doesn't send the correct `Content-Type` header by default. See bug 227477.
api.XMLHttpRequest.setRequestHeader 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
api.XMLHttpRequest.status 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Internet Explorer: Internet Explorer version 5 and 6 supported ajax calls using `ActiveXObject()`
api.XMLHttpRequest.statusText 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Internet Explorer: Internet Explorer version 5 and 6 supported ajax calls using `ActiveXObject()`
api.XMLHttpRequest.timeout 📋	Firefox	4/24/2012	Safari	10/22/2013	546
api.XMLHttpRequest.timeout_event 📋	Firefox	4/24/2012	Safari	10/22/2013	546
api.XMLHttpRequest.upload 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.XMLHttpRequest.withCredentials 📋	Safari	6/8/2009	Chrome	9/15/2009	99	Firefox: Starting with Firefox 11, it's no longer supported to use the `withCredentials` attribute when performing synchronous requests. Attempting to do so throws an `NS_ERROR_DOM_INVALID_ACCESS_ERR` exception.Firefox for Android: Starting with Firefox for Android 14, it's no longer supported to use the `withCredentials` attribute when performing synchronous requests. Attempting to do so throws an `NS_ERROR_DOM_INVALID_ACCESS_ERR` exception.Internet Explorer: Internet Explorer versions 8 and 9 supported cross-domain requests (CORS) using `XDomainRequest`.
api.XMLHttpRequest.worker_support	Safari	6/8/2009	Chrome	1/25/2010	231
api.XMLHttpRequestEventTarget 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
api.XMLHttpRequestUpload 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.XMLHttpRequestUpload.abort_event 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.XMLHttpRequestUpload.error_event 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.XMLHttpRequestUpload.load_event 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.XMLHttpRequestUpload.loadend_event 📋	Safari	6/8/2009	Chrome	3/28/2012	1024
api.XMLHttpRequestUpload.loadstart_event 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.XMLHttpRequestUpload.progress_event 📋	Chrome	5/21/2009	Firefox	6/30/2009	40
api.XMLHttpRequestUpload.timeout_event 📋	Firefox	4/24/2012	Safari	10/22/2013	546
api.XMLSerializer 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XMLSerializer.XMLSerializer 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XMLSerializer.serializeToString 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathEvaluator 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathEvaluator.XPathEvaluator 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathEvaluator.createExpression 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathEvaluator.createNSResolver 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathEvaluator.evaluate 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathExpression 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathExpression.evaluate 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.booleanValue 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.invalidIteratorState 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.iterateNext 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.numberValue 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.resultType 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.singleNodeValue 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.snapshotItem 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.snapshotLength 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XPathResult.stringValue 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XSLTProcessor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XSLTProcessor.XSLTProcessor 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XSLTProcessor.clearParameters 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XSLTProcessor.getParameter 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: Chrome only supports string values.Chrome Android: Chrome Android only supports string values.Edge: Edge only supports string values.Quest Browser: Quest Browser only supports string values.Opera: Opera only supports string values.Opera Android: Opera only supports string values.Safari: Safari only supports string values.Safari on iOS: Safari on iOS only supports string values.Samsung Internet: Samsung Internet only supports string values.WebView Android: WebView only supports string values.WebView on iOS: WebView on iOS only supports string values.
api.XSLTProcessor.importStylesheet 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XSLTProcessor.removeParameter 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XSLTProcessor.reset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
api.XSLTProcessor.setParameter 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: Chrome only supports string values.Chrome Android: Chrome Android only supports string values.Edge: Edge only supports string values.Quest Browser: Quest Browser only supports string values.Opera: Opera only supports string values.Opera Android: Opera only supports string values.Safari: Safari only supports string values.Safari on iOS: Safari on iOS only supports string values.Samsung Internet: Samsung Internet only supports string values.WebView Android: WebView only supports string values.WebView on iOS: WebView on iOS only supports string values.
api.XSLTProcessor.transformToDocument 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: Chrome returns `null` if an error occurs.Chrome Android: Chrome Android returns `null` if an error occurs.Edge: Edge returns `null` if an error occurs.Firefox: Firefox throws an exception if an error occurs.Firefox for Android: Firefox for Android throws an exception if an error occurs.Quest Browser: Quest Browser returns `null` if an error occurs.Opera: Opera 12.1 and earlier throws an exception if an error occurs.Opera: Opera 15 and later returns `null` if an error occurs.Opera Android: Opera Android 12.1 and earlier throws an exception if an error occurs.Opera Android: Opera Android 14 and later returns `null` if an error occurs.Safari: Safari returns `null` if an error occurs.Safari on iOS: Safari on iOS returns `null` if an error occurs.Samsung Internet: Samsung Internet returns `null` if an error occurs.WebView Android: WebView returns `null` if an error occurs.WebView on iOS: WebView on iOS returns `null` if an error occurs.
api.XSLTProcessor.transformToFragment 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: Chrome returns `null` if an error occurs.Chrome Android: Chrome Android returns `null` if an error occurs.Edge: Edge returns `null` if an error occurs.Firefox: Firefox throws an exception if an error occurs.Firefox for Android: Firefox for Android throws an exception if an error occurs.Quest Browser: Quest Browser returns `null` if an error occurs.Opera: Opera 12.1 and earlier throws an exception if an error occurs.Opera: Opera 15 and later returns `null` if an error occurs.Opera Android: Opera Android 12.1 and earlier throws an exception if an error occurs.Opera Android: Opera Android 14 and later returns `null` if an error occurs.Safari: Safari returns `null` if an error occurs.Safari on iOS: Safari on iOS returns `null` if an error occurs.Samsung Internet: Samsung Internet returns `null` if an error occurs.WebView Android: WebView returns `null` if an error occurs.WebView on iOS: WebView on iOS returns `null` if an error occurs.
api.atob 📋	Firefox	11/9/2004	Chrome	1/25/2010	1903
api.atob.worker_support	Firefox	3/22/2011	Safari	9/20/2016	2009
api.btoa 📋	Firefox	11/9/2004	Chrome	1/25/2010	1903
api.btoa.worker_support	Firefox	3/22/2011	Safari	9/20/2016	2009
api.caches 📋	Chrome	1/21/2015	Safari	4/12/2018	1177
api.caches.secure_context_required	Chrome	3/6/2018	Firefox	7/26/2022	1603
api.caches.worker_support	Chrome	1/21/2015	Safari	4/12/2018	1177
api.clearInterval 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: From Internet Explorer 4 through 8, `clearInterval` is an Object rather than a Function. This behavior was fixed in Internet Explorer 9.Node.js: Takes a `Timeout` object instead of the `intervalID`.
api.clearInterval.worker_support	Safari	6/8/2009	Chrome	9/15/2009	99
api.clearTimeout 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Internet Explorer: From Internet Explorer 4 through 8, `clearTimeout` is an Object rather than a Function. This behavior was fixed in Internet Explorer 9.Node.js: Takes a `Timeout` object instead of the `timeoutID`.
api.clearTimeout.worker_support	Safari	6/8/2009	Chrome	9/15/2009	99
api.console 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Internet Explorer: In Internet Explorer 8 and 9, the `console` object is `undefined` when the developer tools are not open. This behavior was fixed in Internet Explorer 10.
api.console.assert_static 📋	Chrome	5/21/2009	Firefox	3/18/2014	1762	Node.js: Throws error when assertion fails.
api.console.clear_static 📋	Chrome	2/21/2013	Firefox	7/2/2015	861
api.console.countReset_static 📋	Chrome	7/24/2018	Safari	9/19/2019	422
api.console.count_static 📋	Chrome	5/21/2009	Firefox	6/10/2014	1846
api.console.debug_static 📋	Chrome	5/21/2009	Firefox	6/21/2011	761	Node.js: Since Node.js 8.10.0, this method is an alias for `console.log`.
api.console.dir_static 📋	Chrome	5/21/2009	Firefox	11/8/2011	901
api.console.dirxml_static 📋	Chrome	5/21/2009	Firefox	7/2/2015	2233	Node.js: Does not use Logger to log data.
api.console.error_static 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.console.groupCollapsed_static 📋	Chrome	9/2/2010	Firefox	12/20/2011	474	Node.js: Alias for `console.group`
api.console.groupEnd_static 📋	Chrome	5/21/2009	Firefox	12/20/2011	943
api.console.group_static 📋	Chrome	5/21/2009	Firefox	12/20/2011	943
api.console.info_static 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Node.js: Alias for `console.log`
api.console.log_static 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
api.console.profileEnd_static	Safari	6/8/2009	Firefox	3/8/2022	4656	Firefox: The method can be called, but the marker does not show up in the performance profile.Firefox for Android: The method can be called, but the marker does not show up in the performance profile.
api.console.profile_static	Safari	6/8/2009	Firefox	3/8/2022	4656	Firefox: The method can be called, but the marker does not show up in the performance profile.Firefox for Android: The method can be called, but the marker does not show up in the performance profile.
api.console.substitution_strings	Safari	10/26/2007	Firefox	12/20/2011	1516	Chrome: In version 28, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.Chrome Android: In version 28, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.Deno: Before Deno 1.4, `%c` is not supported.Deno: `%c` only supports CSS properties `color`, `background-color`, `font-weight`, `font-style`, `text-decoration-color`, and `text-decoration-line`.Edge: Before Edge 79, `%c` is not supported.Edge: Before Edge 79, `%d` outputs a 0 if the specified value isn't a number.Internet Explorer: `%c` is not supported.Internet Explorer: `%d` outputs a 0 if the specified value isn't a number.Quest Browser: In version 5.0, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.Samsung Internet: In Samsung Internet 1.5, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.WebView Android: In version 4.4, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.
api.console.table_static 📋	Chrome	5/21/2013	Firefox	12/1/2014	559
api.console.timeEnd_static 📋	Chrome	5/21/2009	Firefox	1/31/2012	985
api.console.timeLog_static 📋	Firefox	9/5/2018	Safari	9/19/2019	379
api.console.timeStamp_static	Chrome	10/25/2011	Firefox	3/8/2022	3787	Firefox: The method can be called, but the marker does not show up in the performance profile.Firefox for Android: The method can be called, but the marker does not show up in the performance profile.
api.console.time_static 📋	Chrome	5/21/2009	Firefox	1/31/2012	985
api.console.trace_static 📋	Chrome	5/21/2009	Firefox	8/16/2011	817
api.console.warn_static 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Node.js: Alias for `console.error`
api.console.worker_support	Safari	10/22/2013	Firefox	4/29/2014	189
api.createImageBitmap 📋	Firefox	11/3/2015	Safari	9/20/2021	2148
api.createImageBitmap.options_colorSpaceConversion_parameter	Chrome	4/19/2017	Firefox	3/8/2022	1784
api.createImageBitmap.options_imageOrientation_parameter	Chrome	7/20/2016	Firefox	10/5/2021	1903
api.createImageBitmap.options_imageOrientation_parameter.from-image	Safari	9/12/2022	Chrome	4/4/2023	204
api.createImageBitmap.options_premultiplyAlpha_parameter	Chrome	7/20/2016	Safari	9/18/2023	2616	Safari: If the source image is an `ImageData` object, then the `premultiplyAlpha` option does nothing. See bug 237082.Safari on iOS: If the source image is an `ImageData` object, then the `premultiplyAlpha` option does nothing. See bug 237082.WebView on iOS: If the source image is an `ImageData` object, then the `premultiplyAlpha` option does nothing. See bug 237082.
api.createImageBitmap.options_resizeHeight_parameter	Chrome	10/12/2016	Firefox	3/8/2022	1973
api.createImageBitmap.options_resizeWidth_parameter	Chrome	10/12/2016	Firefox	3/8/2022	1973
api.createImageBitmap.svgimageelement_as_source_image	Chrome	6/5/2017	Safari	12/11/2023	2380
api.crossOriginIsolated 📋	Firefox	1/7/2020	Safari	12/13/2021	706
api.crypto 📋	Firefox	11/9/2004	Chrome	8/26/2014	3577	Node.js: Available as a part of the `crypto` module.
api.crypto.worker_support	Chrome	8/26/2014	Safari	3/27/2017	944
api.fetch 📋	Chrome	4/14/2015	Safari	3/27/2017	713	Deno: Fetching with a `"manual"` redirect mode does not result in a `"opaqueredirect"` response, but a regular response.
api.fetch.blob_data_support	Firefox	7/2/2015	Safari	3/27/2017	634
api.fetch.init_keepalive_parameter	Chrome	4/17/2018	Firefox	11/26/2024	2415
api.fetch.init_priority_parameter	Chrome	4/26/2022	Firefox	10/29/2024	917
api.fetch.init_referrerPolicy_parameter	Chrome	7/20/2016	Safari	4/12/2018	631
api.fetch.init_signal_parameter	Firefox	11/14/2017	Chrome	4/17/2018	154
api.indexedDB 📋	Firefox	10/9/2012	Safari	10/16/2014	737
api.indexedDB.worker_support	Chrome	1/10/2013	Safari	9/20/2016	1349
api.isSecureContext 📋	Chrome	12/1/2015	Safari	4/12/2018	863
api.isSecureContext.worker_support	Chrome	12/1/2016	Safari	4/12/2018	497
api.origin 📋	Chrome	6/5/2017	Safari	9/19/2017	106
api.performance 📋	Chrome	9/2/2010	Safari	10/16/2014	1505	Node.js: Available as a part of the `perf_hooks` module.
api.performance.worker_support	Chrome	10/1/2013	Safari	9/19/2017	1449	Node.js: Available as a part of the `perf_hooks` module.
api.queueMicrotask 📋	Chrome	12/4/2018	Firefox	9/3/2019	273
api.reportError 📋	Firefox	10/5/2021	Safari	3/14/2022	160
api.setInterval 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Node.js: Returns a `Timeout` object instead of the `intervalID`.Node.js: Does not support passing a `code` string and throws when the first parameter is not a function.
api.setInterval.supports_parameters_for_callback	Safari	2/2/2004	Chrome	12/11/2008	1774
api.setInterval.worker_support	Safari	6/8/2009	Chrome	9/15/2009	99
api.setTimeout 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Node.js: Returns a `Timeout` object instead of the `timeoutID`.Node.js: Does not support passing a `code` string and throws when the first parameter is not a function.
api.setTimeout.supports_parameters_for_callback	Safari	2/2/2004	Chrome	12/11/2008	1774
api.setTimeout.worker_support	Safari	6/8/2009	Chrome	9/15/2009	99
api.structuredClone 📋	Firefox	11/2/2021	Safari	3/14/2022	132	Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `message` parameter does not support cloning `Blob` values.Deno: The `transfer` parameter does not accept `ArrayBuffer` items. Passing an `ArrayBuffer` results in an error being thrown.
api.trustedTypes 📋	Chrome	5/19/2020	Firefox	2/24/2026	2107

CSS Data

API	First Browser	Date	Last Browser	Date	Days	Notes
css.at-rules.charset 📋	Firefox	11/29/2005	Safari	6/8/2009	1287	Firefox: Firefox 1 supported an invalid syntax where the character encoding is not between single or double quotes.Internet Explorer: From Internet Explorer 5.5 to IE 7 (inclusive), Internet Explorer supported an invalid syntax where the character encoding is not between single or double quotes.
css.at-rules.container 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.at-rules.counter-style 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.additive-symbols 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.fallback 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.negative 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.pad 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.prefix 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.range 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.suffix 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.counter-style.symbols 📋	Firefox	10/14/2014	Safari	9/18/2023	3261	Chrome: Does not support `<image>` as a value for the `symbols` descriptor.Chrome Android: Does not support `<image>` as a value for the `symbols` descriptor.Edge: Does not support `<image>` as a value for the `symbols` descriptor.Firefox: Does not support `<image>` as a value for the `symbols` descriptor.Firefox for Android: Does not support `<image>` as a value for the `symbols` descriptor.Quest Browser: Does not support `<image>` as a value for the `symbols` descriptor.Opera: Does not support `<image>` as a value for the `symbols` descriptor.Opera Android: Does not support `<image>` as a value for the `symbols` descriptor.Samsung Internet: Does not support `<image>` as a value for the `symbols` descriptor.WebView Android: Does not support `<image>` as a value for the `symbols` descriptor.
css.at-rules.counter-style.system 📋	Firefox	10/14/2014	Safari	9/18/2023	3261
css.at-rules.font-face 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.at-rules.font-face.OpenType_COLRv0	Firefox	7/22/2014	Safari	4/12/2018	1360
css.at-rules.font-face.WOFF 📋	Firefox	6/30/2009	Safari	7/20/2011	750
css.at-rules.font-face.WOFF_2 📋	Chrome	7/16/2014	Safari	9/20/2016	797	Safari: Supported only on macOS 10.12 (Sierra) and later.
css.at-rules.font-face.font-display 📋	Chrome	7/25/2017	Safari	4/12/2018	261
css.at-rules.font-face.font-family 📋	Safari	3/18/2008	Chrome	1/25/2010	678
css.at-rules.font-face.font-feature-settings 📋	Firefox	12/1/2014	Chrome	9/2/2025	3928	Firefox: The ISO/IEC CD 14496-22 3rd edition suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS.Firefox: From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See OpenType Font Feature support in Firefox 4.Firefox for Android: The ISO/IEC CD 14496-22 3rd edition suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox for Android 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox for Android 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS.Firefox for Android: From Firefox for Android 4 to Firefox for Android 14 (inclusive), Firefox for Android supported an older, slightly different syntax. See OpenType Font Feature support in Firefox for Android 4.
css.at-rules.font-face.font-stretch 📋	Safari	3/27/2017	Firefox	9/5/2018	527
css.at-rules.font-face.font-style 📋	Safari	3/18/2008	Chrome	1/25/2010	678
css.at-rules.font-face.font-variant	Safari	3/18/2008	Chrome	1/25/2010	678
css.at-rules.font-face.font-weight 📋	Safari	3/18/2008	Chrome	1/25/2010	678
css.at-rules.font-face.size-adjust 📋	Chrome	7/20/2021	Safari	9/18/2023	790
css.at-rules.font-face.src 📋	Safari	3/18/2008	Chrome	1/25/2010	678
css.at-rules.font-face.src.format_keyword	Safari	6/8/2009	Chrome	11/29/2022	4922
css.at-rules.font-face.src.format_variations	Safari	9/19/2017	Firefox	9/5/2018	351
css.at-rules.font-face.src.tech_keyword	Firefox	11/15/2022	Safari	9/18/2023	307
css.at-rules.font-face.unicode-range 📋	Safari	3/18/2008	Firefox	2/24/2015	2534
css.at-rules.font-feature-values 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-feature-values.annotation	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-feature-values.character-variant	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-feature-values.historical-forms	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-feature-values.ornaments	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-feature-values.styleset	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-feature-values.stylistic	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-feature-values.swash	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.at-rules.font-palette-values 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.at-rules.font-palette-values.base-palette 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.at-rules.font-palette-values.font-family 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.at-rules.font-palette-values.override-colors 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.at-rules.import 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.at-rules.import.layer 📋	Firefox	2/8/2022	Safari	3/14/2022	34
css.at-rules.import.supports 📋	Firefox	7/4/2023	Safari	5/13/2024	314
css.at-rules.keyframes 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.at-rules.keyframes.ignore_important_declarations	Firefox	2/19/2013	Safari	3/27/2017	1497
css.at-rules.layer 📋	Firefox	2/8/2022	Safari	3/14/2022	34
css.at-rules.media 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.at-rules.media.-webkit-device-pixel-ratio 📋	Safari	10/26/2007	Firefox	10/23/2018	4015	Firefox: Implemented as an alias for `-moz-device-pixel-ratio`.Firefox for Android: Implemented as an alias for `-moz-device-pixel-ratio`.
css.at-rules.media.-webkit-max-device-pixel-ratio 📋	Safari	10/26/2007	Firefox	10/23/2018	4015	Firefox: Implemented as an alias for `max--moz-device-pixel-ratio`.Firefox for Android: Implemented as an alias for `max--moz-device-pixel-ratio`.
css.at-rules.media.-webkit-min-device-pixel-ratio 📋	Safari	10/26/2007	Firefox	10/23/2018	4015	Firefox: Implemented as an alias for `min--moz-device-pixel-ratio`.Firefox for Android: Implemented as an alias for `min--moz-device-pixel-ratio`.
css.at-rules.media.-webkit-transform-3d 📋	Chrome	5/21/2009	Firefox	9/20/2016	2679
css.at-rules.media.any-hover 📋	Chrome	3/3/2015	Firefox	12/11/2018	1379
css.at-rules.media.any-pointer 📋	Chrome	3/3/2015	Firefox	12/11/2018	1379
css.at-rules.media.aspect-ratio 📋	Firefox	6/30/2009	Safari	6/7/2010	342
css.at-rules.media.calc 📋	Firefox	3/13/2018	Safari	9/17/2018	188
css.at-rules.media.color 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.media.color-gamut 📋	Safari	9/20/2016	Firefox	2/14/2023	2338
css.at-rules.media.color-gamut.p3 📋	Safari	9/20/2016	Firefox	2/14/2023	2338	Firefox: `color-gamut: p3` is always false because Firefox does not support wide-gamut color. See bug 1626624.Firefox for Android: `color-gamut: p3` is always false because Firefox for Android does not support wide-gamut color. See bug 1626624.
css.at-rules.media.color-gamut.rec2020 📋	Safari	9/20/2016	Firefox	2/14/2023	2338	Firefox: `color-gamut: rec2020` is always false because Firefox does not support wide-gamut color. See bug 1626624.Firefox for Android: `color-gamut: rec2020` is always false because Firefox for Android does not support wide-gamut color. See bug 1626624.
css.at-rules.media.color-gamut.srgb 📋	Safari	9/20/2016	Firefox	2/14/2023	2338	Firefox: `color-gamut: srgb` is always true because Firefox does not support wide-gamut color. See bug 1626624.Firefox for Android: `color-gamut: srgb` is always true because Firefox for Android does not support wide-gamut color. See bug 1626624.
css.at-rules.media.device-aspect-ratio 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.media.device-height 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.media.device-width 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.media.display-mode 📋	Chrome	4/14/2015	Safari	9/19/2019	1619
css.at-rules.media.display-mode.browser 📋	Chrome	4/14/2015	Safari	9/19/2019	1619	Firefox for Android: `display-mode: browser` is always true.Safari: In a Safari browser window, `display-mode: browser` is always true, even in a macOS Full Screen window or when using the Fullscreen API. In an installed web application, other `display-mode` values are true only when given by a supported manifest `display` member value. See mdn/browser-compat-data#18807 (comment).Safari on iOS: In the Safari app, `display-mode: browser` is always true, even when using the Fullscreen API. In an installed web application, other `display-mode` values are true only when given by a supported manifest `display` member value. See mdn/browser-compat-data#18807 (comment).WebView on iOS: In the Safari app, `display-mode: browser` is always true, even when using the Fullscreen API. In an installed web application, other `display-mode` values are true only when given by a supported manifest `display` member value. See mdn/browser-compat-data#18807 (comment).
css.at-rules.media.display-mode.fullscreen 📋	Chrome	12/1/2015	Safari	9/19/2019	1388	Firefox: In Firefox's "Full Screen" user interface, browser tabs and other user interface appear but `display-mode: fullscreen` is true.Safari: In a Safari browser window, `display-mode: fullscreen` is never true, even when using the Fullscreen API. See mdn/browser-compat-data#18807 (comment).Safari on iOS: In the Safari app, `display-mode: fullscreen` is never true, even when using the Fullscreen API. See mdn/browser-compat-data#18807 (comment).Safari on iOS: In an installed web application with the `display` manifest member set to `standalone`, `display-mode: fullscreen` is true, even though the system status bar is visible. See bug 264218.WebView on iOS: In the Safari app, `display-mode: fullscreen` is never true, even when using the Fullscreen API. See mdn/browser-compat-data#18807 (comment).WebView on iOS: In an installed web application with the `display` manifest member set to `standalone`, `display-mode: fullscreen` is true, even though the system status bar is visible. See bug 264218.
css.at-rules.media.display-mode.minimal-ui 📋	Chrome	4/14/2015	Safari	9/19/2019	1619	Firefox: `display-mode: minimal-ui` is never true.Safari: `display-mode: minimal-ui` is never true.Safari on iOS: `display-mode: minimal-ui` is never true.WebView on iOS: `display-mode: minimal-ui` is never true.
css.at-rules.media.display-mode.standalone 📋	Chrome	4/14/2015	Safari	9/19/2019	1619	Firefox: `display-mode: standalone` is never true.Safari on iOS: In an installed web application with the `display` manifest member set to `standalone`, `display-mode: standalone` is false and `display-mode: fullscreen` is true. See bug 264218.WebView on iOS: In an installed web application with the `display` manifest member set to `standalone`, `display-mode: standalone` is false and `display-mode: fullscreen` is true. See bug 264218.
css.at-rules.media.dynamic-range 📋	Safari	3/24/2020	Firefox	5/3/2022	770
css.at-rules.media.forced-colors 📋	Chrome	3/2/2021	Safari	9/12/2022	559
css.at-rules.media.grid 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.media.height 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.media.hover 📋	Chrome	10/7/2014	Firefox	12/11/2018	1526	Chrome: Before Chrome 41, the implementation was buggy and reported `(hover: none)` on non-touch-based computers with a mouse/trackpad. See bug 40397980.Chrome Android: On some Android devices, such as certain Samsung models, the `(hover: hover)` media query may incorrectly match. See bug 41445959.Quest Browser: On some Android devices, such as certain Samsung models, the `(hover: hover)` media query may incorrectly match. See bug 41445959.Opera: Before Opera 28, the implementation was buggy and reported `(hover: none)` on non-touch-based computers with a mouse/trackpad. See bug 40397980.Opera Android: On some Android devices, such as certain Samsung models, the `(hover: hover)` media query may incorrectly match. See bug 41445959.Samsung Internet: On some Android devices, such as certain Samsung models, the `(hover: hover)` media query may incorrectly match. See bug 41445959.WebView Android: On some Android devices, such as certain Samsung models, the `(hover: hover)` media query may incorrectly match. See bug 41445959.
css.at-rules.media.media_features	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.at-rules.media.monochrome 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.media.nested-queries	Firefox	3/13/2012	Safari	10/22/2013	588
css.at-rules.media.or_syntax	Firefox	12/11/2018	Safari	3/27/2023	1567
css.at-rules.media.orientation 📋	Firefox	10/24/2006	Safari	6/7/2010	1322
css.at-rules.media.overflow-block 📋	Firefox	3/19/2019	Safari	9/18/2023	1644
css.at-rules.media.overflow-inline 📋	Firefox	3/19/2019	Safari	9/18/2023	1644
css.at-rules.media.pointer 📋	Chrome	3/3/2015	Firefox	12/11/2018	1379
css.at-rules.media.prefers-color-scheme 📋	Safari	3/25/2019	Chrome	7/30/2019	127
css.at-rules.media.prefers-contrast 📋	Safari	4/26/2021	Firefox	5/31/2022	400
css.at-rules.media.prefers-reduced-motion 📋	Safari	3/27/2017	Chrome	4/23/2019	757
css.at-rules.media.range_syntax	Firefox	6/28/2022	Safari	3/27/2023	272	Firefox: Only supports range notations where the feature name comes before any value `(width > 500px)`Firefox for Android: Only supports range notations where the feature name comes before any value `(width > 500px)`
css.at-rules.media.resolution 📋	Firefox	11/8/2011	Safari	9/12/2022	3961	Firefox: Supports `<integer>` values only.Firefox for Android: Supports `<integer>` values only.
css.at-rules.media.scan 📋	Firefox	10/23/2018	Safari	3/27/2023	1616
css.at-rules.media.scripting 📋	Firefox	5/9/2023	Chrome	12/5/2023	210
css.at-rules.media.update 📋	Firefox	6/28/2022	Safari	9/18/2023	447
css.at-rules.media.width 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.at-rules.namespace 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.at-rules.page 📋	Chrome	5/21/2009	Safari	12/11/2024	5683
css.at-rules.page.size 📋	Chrome	10/25/2011	Safari	12/11/2024	4796
css.at-rules.page.size.jis-b4 📋	Chrome	5/19/2020	Safari	12/11/2024	1667
css.at-rules.page.size.jis-b5 📋	Chrome	5/19/2020	Safari	12/11/2024	1667
css.at-rules.position-try 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.at-rules.property 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
css.at-rules.property.inherits 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
css.at-rules.property.initial-value 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
css.at-rules.property.syntax 📋	Chrome	8/25/2020	Firefox	7/9/2024	1414
css.at-rules.scope 📋	Chrome	10/10/2023	Firefox	12/9/2025	791
css.at-rules.starting-style 📋	Chrome	9/12/2023	Firefox	8/6/2024	329
css.at-rules.supports 📋	Firefox	6/25/2013	Safari	9/30/2015	827
css.at-rules.supports.font-format	Firefox	10/18/2022	Safari	9/18/2023	335
css.at-rules.supports.font-tech	Firefox	10/18/2022	Safari	9/18/2023	335
css.at-rules.supports.selector	Firefox	9/3/2019	Safari	4/26/2021	601
css.properties.-webkit-mask-position-x	Safari	3/18/2008	Firefox	9/20/2016	3108
css.properties.-webkit-mask-position-y	Safari	3/18/2008	Firefox	9/20/2016	3108
css.properties.-webkit-text-fill-color 📋	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.-webkit-text-security	Safari	10/26/2007	Firefox	6/6/2023	5702
css.properties.-webkit-text-stroke 📋	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.-webkit-text-stroke-color 📋	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.-webkit-text-stroke-width 📋	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.accent-color 📋	Chrome	8/31/2021	Safari	3/14/2022	195	Chrome Android: Chrome for Android does not maintain minimum contrast for legibility of the control. See bug 343503163.Quest Browser: Chrome for Android does not maintain minimum contrast for legibility of the control. See bug 343503163.Opera Android: Chrome for Android does not maintain minimum contrast for legibility of the control. See bug 343503163.Safari: Safari does not maintain minimum contrast for legibility of the control. See bug 244233.Safari on iOS: Safari on iOS does not maintain minimum contrast for legibility of the control. See bug 244233.Samsung Internet: Chrome for Android does not maintain minimum contrast for legibility of the control. See bug 343503163.WebView Android: Chrome for Android does not maintain minimum contrast for legibility of the control. See bug 343503163.WebView on iOS: WebView on iOS does not maintain minimum contrast for legibility of the control. See bug 244233.
css.properties.accent-color.auto	Chrome	8/31/2021	Safari	3/14/2022	195
css.properties.align-content 📋	Chrome	8/20/2013	Safari	9/30/2015	771
css.properties.align-content.block_context 📋	Safari	3/5/2024	Firefox	4/16/2024	42
css.properties.align-content.flex_context 📋	Chrome	7/31/2012	Safari	9/30/2015	1156
css.properties.align-content.flex_context.baseline	Safari	9/30/2015	Chrome	3/9/2017	526
css.properties.align-content.flex_context.first_baseline	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.align-content.flex_context.safe_unsafe	Firefox	10/23/2018	Safari	7/29/2024	2106	Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.align-content.flex_context.space-evenly	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.align-content.flex_context.start_end	Firefox	3/8/2016	Safari	7/20/2022	2325	Opera: Before version 79, this value is recognized, but has no effect.Opera Android: This value is recognized, but has no effect.
css.properties.align-content.flex_context.stretch	Safari	9/30/2015	Chrome	3/9/2017	526
css.properties.align-content.grid_context 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.align-content.normal 📋	Chrome	8/20/2013	Safari	9/30/2015	771
css.properties.align-items 📋	Firefox	4/2/2013	Safari	9/30/2015	911
css.properties.align-items.anchor-center 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.align-items.flex_context 📋	Firefox	4/2/2013	Chrome	7/20/2016	1205	Chrome: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome implements the new behavior beginning with Chrome 52.Chrome Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome Android implements the new behavior beginning with Chrome Android 52.Firefox: Multi-line flexbox has been supported since Firefox 28.Firefox for Android: Multi-line flexbox has been supported since Firefox for Android 28.Internet Explorer: In Internet Explorer 10 and 11, if column flex items have `align-items: center;` set on them and their content is too large, then they will overflow the bounds of their container. See Flexbug #2.Opera: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Opera implements the new behavior beginning with Opera 39.Opera Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Opera Android implements the new behavior beginning with Opera Android 41.Samsung Internet: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Samsung Internet implements the new behavior beginning with Samsung Internet 6.0.WebView Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. WebView Android implements the new behavior beginning with WebView Android 52.
css.properties.align-items.flex_context.baseline	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.align-items.flex_context.first_baseline	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.align-items.flex_context.last_baseline	Firefox	3/7/2017	Safari	12/13/2022	2107
css.properties.align-items.flex_context.safe_unsafe	Firefox	10/23/2018	Safari	7/29/2024	2106	Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.align-items.flex_context.start_end	Firefox	3/8/2016	Safari	3/14/2022	2197
css.properties.align-items.grid_context 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.align-items.grid_context.start_end	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.align-self 📋	Firefox	4/2/2013	Safari	9/30/2015	911
css.properties.align-self.anchor-center 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.align-self.auto 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.align-self.flex_context 📋	Firefox	4/2/2013	Chrome	7/16/2014	470	Chrome: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome implements the new behavior beginning with Chrome 52.Chrome Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome Android implements the new behavior beginning with Chrome Android 52.Firefox: Before Firefox 27, only single-line flexbox is supported.Firefox for Android: Before Firefox for Android 27, only single-line flexbox is supported.Samsung Internet: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Samsung Internet implements the new behavior beginning with Samsung Internet 6.0.WebView Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. WebView Android implements the new behavior beginning with WebView Android 52.
css.properties.align-self.flex_context.baseline 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.align-self.flex_context.first_baseline	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.align-self.flex_context.last_baseline	Firefox	3/7/2017	Safari	12/13/2022	2107
css.properties.align-self.flex_context.safe_unsafe	Firefox	10/23/2018	Safari	7/29/2024	2106	Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.align-self.flex_context.start_end	Firefox	3/8/2016	Safari	3/14/2022	2197	Opera: Before version 79, this value is recognized, but has no effect.
css.properties.align-self.flex_context.stretch 📋	Safari	9/30/2015	Chrome	3/9/2017	526
css.properties.align-self.grid_context 📋	Firefox	3/7/2017	Safari	3/27/2017	20	Internet Explorer: Internet Explorer 10 and 11 have the property `-ms-grid-row-align`, which acts in a similar way to `align-self`.
css.properties.align-self.normal 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.align-self.stretch 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.all 📋	Firefox	2/4/2014	Safari	3/21/2016	776
css.properties.anchor-name 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.anchor-name.none 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.anchor-scope 📋	Chrome	11/12/2024	Firefox	1/13/2026	427
css.properties.anchor-scope.all 📋	Chrome	11/12/2024	Firefox	1/13/2026	427
css.properties.anchor-scope.none 📋	Chrome	11/12/2024	Firefox	1/13/2026	427
css.properties.animation 📋	Firefox	10/9/2012	Safari	9/30/2015	1086	WebView Android: The `animation-fill-mode` property is not supported in Android browsers below 2.3.
css.properties.animation.alternate 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.alternate-reverse 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.auto 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.backwards 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.both 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.ease 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.ease-in 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.ease-in-out 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.ease-out 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.forwards 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.infinite 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.linear 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.none 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.normal 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.paused 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.reverse 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.running 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.step-end 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation.step-start 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-composition 📋	Safari	9/12/2022	Firefox	7/4/2023	295
css.properties.animation-composition.accumulate 📋	Safari	9/12/2022	Firefox	7/4/2023	295
css.properties.animation-composition.add 📋	Safari	9/12/2022	Firefox	7/4/2023	295
css.properties.animation-composition.replace 📋	Safari	9/12/2022	Firefox	7/4/2023	295
css.properties.animation-delay 📋	Firefox	10/9/2012	Safari	9/30/2015	1086	Firefox: Before Firefox 57, Firefox does not repaint elements outside the viewport that are animated into the viewport with a delay. This bug affects only some platforms, such as Windows.
css.properties.animation-direction 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.animation-direction.alternate 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-direction.alternate-reverse 📋	Chrome	5/15/2012	Firefox	10/9/2012	147
css.properties.animation-direction.normal 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-direction.reverse 📋	Chrome	5/15/2012	Firefox	10/9/2012	147
css.properties.animation-duration 📋	Firefox	10/9/2012	Safari	9/30/2015	1086	Internet Explorer: Once the element has loaded, changing the value of this property has no effect.
css.properties.animation-fill-mode 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.animation-fill-mode.backwards 📋	Chrome	9/15/2009	Firefox	6/21/2011	644
css.properties.animation-fill-mode.both 📋	Chrome	9/15/2009	Firefox	6/21/2011	644
css.properties.animation-fill-mode.forwards 📋	Chrome	9/15/2009	Firefox	6/21/2011	644
css.properties.animation-fill-mode.none 📋	Chrome	9/15/2009	Firefox	6/21/2011	644
css.properties.animation-iteration-count 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.animation-iteration-count.infinite 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-name 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.animation-name.none 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-play-state 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.animation-play-state.paused 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-play-state.running 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-timeline 📋	Firefox	2/14/2023	Safari	9/15/2025	944
css.properties.animation-timeline.scroll 📋	Firefox	2/14/2023	Safari	9/15/2025	944	Firefox: Zero scroll range is treated as 100% but should be 0% (see bug 1780865).Firefox: Supports the deprecated `horizontal` and `vertical` axis values, and not the `x` and `y` values.
css.properties.animation-timeline.view 📋	Firefox	6/6/2023	Safari	9/15/2025	832
css.properties.animation-timing-function 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.animation-timing-function.ease 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-timing-function.ease-in 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-timing-function.ease-in-out 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-timing-function.ease-out 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-timing-function.jump	Firefox	1/29/2019	Safari	9/16/2020	596
css.properties.animation-timing-function.linear 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-timing-function.step-end 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.animation-timing-function.step-start 📋	Safari	6/8/2009	Firefox	6/21/2011	743
css.properties.appearance 📋	Chrome	7/27/2020	Safari	3/14/2022	595
css.properties.appearance.auto 📋	Chrome	5/19/2020	Safari	3/14/2022	664
css.properties.appearance.button 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.checkbox 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.listbox 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.menulist 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.menulist-button 📋	Safari	10/26/2007	Firefox	8/25/2020	4687	Firefox: See bug 1481615.Firefox for Android: See bug 1481615.
css.properties.appearance.meter 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.none 📋	Safari	10/26/2007	Firefox	6/13/2017	3518	Firefox: Doesn't work with `<input type="checkbox">` and `<input type="radio">`.Firefox for Android: Doesn't work with `<input type="checkbox">` and `<input type="radio">`.
css.properties.appearance.progress-bar 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.radio 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.searchfield 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.textarea 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.appearance.textfield 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.aspect-ratio 📋	Chrome	1/19/2021	Safari	9/20/2021	244
css.properties.aspect-ratio.auto 📋	Chrome	1/19/2021	Safari	9/20/2021	244
css.properties.backdrop-filter 📋	Chrome	7/30/2019	Safari	9/16/2024	1875	Firefox: Before Firefox 123, the property was not supported on systems with unknown GPU vendor (see bug 1868737).Firefox for Android: Before Firefox for Android 123, the property was not supported on systems with unknown GPU vendor (see bug 1868737).
css.properties.backdrop-filter.none 📋	Safari	9/30/2015	Firefox	7/26/2022	2491
css.properties.backface-visibility 📋	Firefox	10/9/2012	Safari	3/14/2022	3443
css.properties.backface-visibility.hidden 📋	Chrome	6/7/2011	Firefox	1/31/2012	238
css.properties.backface-visibility.visible 📋	Chrome	6/7/2011	Firefox	1/31/2012	238
css.properties.background 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.SVG_image_as_background	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.background.background-clip	Safari	7/20/2011	Firefox	6/25/2013	706
css.properties.background.background-origin	Safari	7/20/2011	Firefox	6/25/2013	706
css.properties.background.background-size	Safari	7/20/2011	Chrome	7/31/2012	377
css.properties.background.border-box 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.bottom 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.center 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.content-box 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.fixed 📋	Chrome	10/25/2011	Firefox	11/15/2016	1848
css.properties.background.left 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.local 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.multiple_backgrounds	Safari	4/15/2005	Firefox	1/21/2010	1742
css.properties.background.no-repeat 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.padding-box 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.repeat 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.repeat-x 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.repeat-y 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.right 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.round 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.scroll 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.space 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background.top 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-attachment 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-attachment.fixed 📋	Firefox	10/24/2006	Safari	3/14/2022	5620	Safari: `fixed` is recognized but has no effect. See related bug 219324.Safari on iOS: `fixed` is recognized but has no effect. See bug 275247.WebView on iOS: `fixed` is recognized but has no effect. See bug 275247.
css.properties.background-attachment.local 📋	Chrome	12/11/2008	Safari	3/14/2022	4841	Safari: `local` is recognized but has no effect. See bug 219324.Safari on iOS: `local` is recognized but has no effect. See bug 219324.Safari on iOS: If `-webkit-overflow-scrolling: touch` is set, then `local` has no effect.WebView on iOS: `local` is recognized but has no effect. See bug 219324.WebView on iOS: If `-webkit-overflow-scrolling: touch` is set, then `local` has no effect.
css.properties.background-attachment.multiple_backgrounds	Safari	4/15/2005	Firefox	1/21/2010	1742
css.properties.background-attachment.scroll 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-blend-mode 📋	Chrome	5/20/2014	Safari	10/16/2014	149
css.properties.background-clip 📋	Chrome	12/11/2008	Firefox	3/22/2011	831	Chrome: Chrome accepts alternate synonyms to its values: `padding`, `border`, and `content`.Chrome Android: Chrome Android accepts alternate synonyms to its values: `padding`, `border`, and `content`.Edge: Since Edge 79, accepts alternate synonyms to its values: `padding`, `border`, and `content`.Firefox: Used the `-moz-background-clip: padding \| border` syntax.Internet Explorer: In IE 7 and IE 8 of Internet Explorer, this property always behaved like `background-clip: padding-box` when `overflow` was `hidden`, `auto`, or `scroll`.Quest Browser: Quest Browser accepts alternate synonyms to its values: `padding`, `border`, and `content`.Opera: Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`.Opera Android: Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`.Safari: Safari accepts alternate synonyms to its values: `padding`, `border`, and `content`.Safari on iOS: Safari accepts alternate synonyms to its values: `padding`, `border`, and `content`.Samsung Internet: Samsung Internet accepts alternate synonyms to its values: `padding`, `border`, and `content`.WebView Android: WebView Android accepts alternate synonyms to its values: `padding`, `border`, and `content`.WebView on iOS: Safari accepts alternate synonyms to its values: `padding`, `border`, and `content`.
css.properties.background-clip.border-box 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.background-clip.content-box 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Internet Explorer: In IE 7 and IE 9 of Internet Explorer, it always behaved like `background-clip: padding-box` if `overflow: hidden \| auto \| scroll`
css.properties.background-clip.padding-box 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.background-clip.text 📋	Firefox	9/20/2016	Chrome	12/5/2023	2632	Chrome: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).Chrome Android: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).Edge: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).Edge: Before Edge 15, this value was supported with the prefixed version of the property only.Firefox: Does not work with `background-attachment: fixed` (bug 1313757), in multi-layer backgrounds with other values (bug 1481498), and in some other special cases (see bug 1656784).Firefox for Android: Does not work with `background-attachment: fixed` (bug 1313757), in multi-layer backgrounds with other values (bug 1481498), and in some other special cases (see bug 1656784).Quest Browser: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).Opera: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).Opera Android: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).Safari: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`).Safari on iOS: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`).Samsung Internet: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).WebView Android: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`; see bug 40229927).WebView on iOS: The `text` value is only supported by `-webkit-background-clip` (and not by `background-clip`).
css.properties.background-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: In Internet Explorer 8 and 9, there is a bug where a computed `background-color` of `transparent` causes `click` events to not get fired on overlaid elements.
css.properties.background-color.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.background-color.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-image 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: If the `browser.display.use_document_colors` user preference in `about:config` is set to `false`, background images will not be displayed.Firefox for Android: If the `browser.display.use_document_colors` user preference in `about:config` is set to `false`, background images will not be displayed.
css.properties.background-image.gradients 📋	Chrome	12/11/2008	Firefox	1/21/2010	406	Chrome: Some versions support only experimental gradients prefixed with `-webkit`.Chrome Android: Some versions support only experimental gradients prefixed with `-webkit`.Firefox: Some versions support only experimental gradients prefixed with `-moz`.Firefox for Android: Some versions support only experimental gradients prefixed with `-moz`.Quest Browser: Some versions support only experimental gradients prefixed with `-webkit`.Opera: Some versions support only experimental gradients prefixed with `-o`.Opera Android: Some versions support only experimental gradients prefixed with `-webkit`.Safari: Some versions support only experimental gradients prefixed with `-webkit`.Safari on iOS: Some versions support only experimental gradients prefixed with `-webkit`.Samsung Internet: Some versions support only experimental gradients prefixed with `-webkit`.WebView Android: Some versions support only experimental gradients prefixed with `-webkit`.WebView on iOS: Some versions support only experimental gradients prefixed with `-webkit`.
css.properties.background-image.image-set 📋	Firefox	6/1/2021	Safari	9/18/2023	839	Chrome: Support for `url` images only and `x` is the only supported resolution unit.Chrome Android: Support for `url` images only and `x` is the only supported resolution unit.Edge: Support for `url` images only and `x` is the only supported resolution unit.Firefox: The `type()` function is not supported as an argument to `image-set()`.Firefox for Android: The `type()` function is not supported as an argument to `image-set()`.Quest Browser: Support for `url` images only and `x` is the only supported resolution unit.Opera: Support for `url` images only and `x` is the only supported resolution unit.Opera Android: Support for `url` images only and `x` is the only supported resolution unit.Safari: The `type()` function is not supported as an argument to `image-set()`.Safari: The `type()` function is not supported as an argument to `image-set()`.Safari: Support for `url` images only and `x` is the only supported resolution unit.Safari: Support for `url` images only and `x` is the only supported resolution unit.Safari on iOS: The `type()` function is not supported as an argument to `image-set()`.Safari on iOS: The `type()` function is not supported as an argument to `image-set()`.Safari on iOS: Support for `url` images only and `x` is the only supported resolution unit.Safari on iOS: Support for `url` images only and `x` is the only supported resolution unit.Samsung Internet: Support for `url` images only and `x` is the only supported resolution unit.WebView Android: Support for `url` images only and `x` is the only supported resolution unit.WebView on iOS: The `type()` function is not supported as an argument to `image-set()`.WebView on iOS: The `type()` function is not supported as an argument to `image-set()`.WebView on iOS: Support for `url` images only and `x` is the only supported resolution unit.WebView on iOS: Support for `url` images only and `x` is the only supported resolution unit.
css.properties.background-image.multiple_backgrounds	Safari	4/15/2005	Firefox	1/21/2010	1742
css.properties.background-image.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-image.svg_images	Safari	6/7/2010	Firefox	3/22/2011	288	Safari: Support of SVG in CSS background is incomplete.Safari on iOS: Support of SVG in CSS background is incomplete.WebView on iOS: Support of SVG in CSS background is incomplete.
css.properties.background-origin 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Chrome: Chrome accepts alternate synonyms to its values: `padding`, `border`, and `content`.Chrome Android: Chrome Android accepts alternate synonyms to its values: `padding`, `border`, and `content`.Edge: Since Edge 79, accepts alternate synonyms to its values: `padding`, `border`, and `content`.Firefox: Used the `-moz-background-clip: padding \| border` syntax.Internet Explorer: In IE 7 and before, Internet explorer was behaving as if `background-origin: border-box` was set. In Internet Explorer 8, as if `background-origin: padding-box`, the regular default value, was set.Quest Browser: Quest Browser accepts alternate synonyms to its values: `padding`, `border`, and `content`.Opera: Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`.Opera Android: Opera accepts alternate synonyms to its values: `padding`, `border`, and `content`.Safari: Webkit accepts alternate synonyms to its values: `padding`, `border`, and `content`.Safari on iOS: Webkit accepts alternate synonyms to its values: `padding`, `border`, and `content`.Samsung Internet: Samsung Internet accepts alternate synonyms to its values: `padding`, `border`, and `content`.WebView Android: WebView accepts alternate synonyms to its values: `padding`, `border`, and `content`.WebView on iOS: Webkit accepts alternate synonyms to its values: `padding`, `border`, and `content`.
css.properties.background-origin.border-box 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.background-origin.content-box 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Internet Explorer: In IE 7 and IE 9 of Internet Explorer, it always behaved like `background-clip: padding` if `overflow: hidden \| auto \| scroll`.
css.properties.background-origin.padding-box 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.background-position 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-position.bottom 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-position.center 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-position.left 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-position.multiple_backgrounds	Safari	4/15/2005	Firefox	1/21/2010	1742
css.properties.background-position.right 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-position.side-relative_values	Firefox	6/5/2012	Safari	10/22/2013	504
css.properties.background-position.top 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-position-x 📋	Safari	6/23/2003	Firefox	9/20/2016	4838
css.properties.background-position-x.side-relative_values	Firefox	9/20/2016	Chrome	1/13/2026	3402
css.properties.background-position-y 📋	Safari	6/23/2003	Firefox	9/20/2016	4838
css.properties.background-position-y.side-relative_values	Firefox	9/20/2016	Chrome	1/13/2026	3402
css.properties.background-repeat 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-repeat.2-value	Chrome	9/15/2009	Firefox	6/5/2012	994
css.properties.background-repeat.multiple_backgrounds	Safari	4/15/2005	Firefox	1/21/2010	1742
css.properties.background-repeat.no-repeat 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-repeat.repeat 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-repeat.repeat-x 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-repeat.repeat-y 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.background-repeat.round 📋	Chrome	10/1/2013	Firefox	9/20/2016	1085
css.properties.background-repeat.space 📋	Chrome	10/1/2013	Firefox	9/20/2016	1085
css.properties.background-size 📋	Chrome	9/15/2009	Firefox	3/22/2011	553	Chrome: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.Chrome Android: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.Quest Browser: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.Opera: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.Opera: Opera 9.5's computation of the background positioning area is incorrect for fixed backgrounds. Opera 9.5 also interprets the two-value form as a horizontal scaling factor and, from appearances, a vertical clipping dimension. This has been fixed in Opera 10.Opera Android: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.Opera Android: Opera 9.5's computation of the background positioning area is incorrect for fixed backgrounds. Opera 9.5 also interprets the two-value form as a horizontal scaling factor and, from appearances, a vertical clipping dimension. This has been fixed in Opera 10.Safari: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.Safari on iOS: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.Samsung Internet: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.WebView Android: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.WebView on iOS: WebKit-based browsers originally implemented an older draft of CSS3 `background-size` in which an omitted second value is treated as duplicating the first value; this draft does not include the `contain` or `cover` keywords.
css.properties.background-size.auto 📋	Safari	10/26/2007	Firefox	1/21/2010	818
css.properties.background-size.contain 📋	Chrome	9/15/2009	Safari	6/7/2010	265
css.properties.background-size.cover 📋	Chrome	9/15/2009	Safari	6/7/2010	265
css.properties.block-size 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.block-size.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.block-size.auto 📋	Chrome	12/2/2010	Firefox	9/22/2015	1755
css.properties.block-size.fit-content 📋	Chrome	3/9/2017	Firefox	11/2/2021	1699
css.properties.block-size.max-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.block-size.min-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.border 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-block 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.currentColor 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.dashed 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.dotted 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.double 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.groove 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.hidden 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.inset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.medium 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.none 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.outset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.ridge 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.solid 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.thick 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.thin 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block.transparent 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-color 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-color.currentColor 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-color.transparent 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-end 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-color 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-color.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-color.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-style.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-width 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-width.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-width.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-end-width.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-color 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-color.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-color.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-style.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-width 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-width.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-width.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-start-width.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-block-style 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.dashed 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.dotted 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.double 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.groove 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.hidden 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.inset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.none 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.outset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.ridge 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-style.solid 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-width 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-width.medium 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-width.thick 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-block-width.thin 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-bottom 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-bottom.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-color.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-bottom-color.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-left-radius 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox for Android 50.
css.properties.border-bottom-left-radius.elliptical_corners	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.border-bottom-left-radius.percentages	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 4, the `<percentage>` was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-bottom-right-radius 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox for Android 50.
css.properties.border-bottom-right-radius.elliptical_corners	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.border-bottom-right-radius.percentages	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 4, the `<percentage>` was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-bottom-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox for Android 50.
css.properties.border-bottom-style.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-style.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-width.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-width.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-bottom-width.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-collapse 📋	Safari	10/24/2003	Chrome	12/11/2008	1875
css.properties.border-collapse.collapse	Safari	10/24/2003	Chrome	12/11/2008	1875
css.properties.border-collapse.separate	Safari	10/24/2003	Chrome	12/11/2008	1875
css.properties.border-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-color.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-color.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-end-end-radius 📋	Firefox	3/19/2019	Safari	9/20/2021	916
css.properties.border-end-start-radius 📋	Firefox	3/19/2019	Safari	9/20/2021	916
css.properties.border-image 📋	Chrome	12/13/2011	Firefox	8/28/2012	259	Chrome: Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Chrome Android: Before Chrome Android 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Edge: Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Firefox: Small SVGs are incorrectly stretched, because percentages in `border-image-slice` are computed to integers instead of floats (bug 1284797).Firefox: Until Firefox 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox: From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox: Until Firefox 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).Firefox: Before Firefox 15, an earlier version of the specification was implemented, prefixed.Firefox for Android: Small SVGs are incorrectly stretched, because percentages in `border-image-slice` are computed to integers instead of floats (bug 1284797).Firefox for Android: Until Firefox for Android 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox for Android: From Firefox for Android 48 until Firefox for Android 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox for Android: Until Firefox for Android 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).Firefox for Android: Before Firefox for Android 15, an earlier version of the specification was implemented, prefixed.Quest Browser: Before Quest Browser false, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Opera: Before Opera 98, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Opera Android: A border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Samsung Internet: Before Samsung Internet 23.0, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).WebView Android: Before WebView 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).
css.properties.border-image.fill	Chrome	12/13/2011	Firefox	8/28/2012	259
css.properties.border-image.gradient	Safari	6/8/2009	Firefox	4/29/2014	1786
css.properties.border-image.none 📋	Safari	10/26/2007	Chrome	12/13/2011	1509
css.properties.border-image.optional_border_image_slice	Chrome	12/13/2011	Firefox	8/28/2012	259
css.properties.border-image.repeat 📋	Safari	10/26/2007	Chrome	12/13/2011	1509
css.properties.border-image.round 📋	Safari	10/26/2007	Chrome	12/13/2011	1509
css.properties.border-image.space 📋	Safari	10/26/2007	Chrome	12/13/2011	1509
css.properties.border-image.stretch 📋	Safari	10/26/2007	Chrome	12/13/2011	1509
css.properties.border-image-outset 📋	Chrome	10/25/2011	Firefox	8/28/2012	308
css.properties.border-image-repeat 📋	Chrome	10/25/2011	Firefox	8/28/2012	308
css.properties.border-image-repeat.repeat 📋	Chrome	10/25/2011	Firefox	8/28/2012	308
css.properties.border-image-repeat.round 📋	Firefox	8/28/2012	Safari	3/21/2016	1301
css.properties.border-image-repeat.space 📋	Safari	3/21/2016	Chrome	1/25/2017	310
css.properties.border-image-repeat.stretch 📋	Chrome	10/25/2011	Firefox	8/28/2012	308
css.properties.border-image-slice 📋	Chrome	10/25/2011	Firefox	8/28/2012	308	Firefox: Small SVGs are incorrectly stretched, because percentages in `border-image-slice` are computed to integers instead of floats (bug 1284797).Firefox: Until Firefox 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox: From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox: Until Firefox 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).Firefox for Android: Small SVGs are incorrectly stretched, because percentages in `border-image-slice` are computed to integers instead of floats (bug 1284797).Firefox for Android: Until Firefox for Android 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox for Android: From Firefox for Android 48 until Firefox for Android 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox for Android: Until Firefox for Android 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).
css.properties.border-image-source 📋	Chrome	10/25/2011	Firefox	8/28/2012	308
css.properties.border-image-source.none 📋	Chrome	10/25/2011	Firefox	8/28/2012	308
css.properties.border-image-width 📋	Chrome	12/13/2011	Safari	7/25/2012	225	Chrome: Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Chrome Android: Before Chrome Android 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Edge: Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Quest Browser: Before Quest Browser false, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Opera: Before Opera 98, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Opera Android: Before Opera Android 75, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).Samsung Internet: Before Samsung Internet 23.0, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).WebView Android: Before WebView Android 112, a border image's absolute or percentage length width may not take precedence over a narrower `border-width` (bug 40541033).
css.properties.border-image-width.auto 📋	Chrome	12/13/2011	Firefox	8/28/2012	259
css.properties.border-inline 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.currentColor 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.dashed 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.dotted 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.double 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.groove 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.hidden 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.inset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.medium 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.none 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.outset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.ridge 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.solid 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.thick 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.thin 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline.transparent 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-color 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-color.currentColor 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-color.transparent 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-end 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-color 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-color.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-color.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-style.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-width 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-width.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-width.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-end-width.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-color 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-color.currentColor 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-color.transparent 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.dashed 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.dotted 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.double 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.groove 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.hidden 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.inset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.outset 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.ridge 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-style.solid 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-width 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-width.medium 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-width.thick 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-start-width.thin 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.border-inline-style 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.dashed 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.dotted 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.double 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.groove 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.hidden 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.inset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.none 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.outset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.ridge 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-style.solid 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-width 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-width.medium 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-width.thick 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-inline-width.thin 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.border-left 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-left.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-color.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-left-color.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50.Firefox for Android: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50.
css.properties.border-left-style.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-style.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-width.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-width.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-left-width.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-radius 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Chrome: Chrome ignores `border-radius` on `<select>` elements unless `-webkit-appearance` is overridden to an appropriate value.Firefox: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-style` was `solid`. This has been fixed in Firefox 50.Firefox: To conform to the CSS3 standard, Firefox 4 changes the handling of `<percentage>` values to match the specification. You can specify an ellipse as a border on an arbitrary sized element with `border-radius: 50%;`. Firefox 4 also makes rounded corners clip content and images if `overflow: visible` is not set.Firefox for Android: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-style` was `solid`. This has been fixed in Firefox 50.Opera: Before Opera 11.60, replaced elements with `border-radius` do not have rounded corners.Safari: Safari ignores `border-radius` on `<select>` elements unless `-webkit-appearance` is overridden to an appropriate value.Safari on iOS: Safari ignores `border-radius` on `<select>` elements unless `-webkit-appearance` is overridden to an appropriate value.WebView on iOS: Safari ignores `border-radius` on `<select>` elements unless `-webkit-appearance` is overridden to an appropriate value.
css.properties.border-radius.4_values_for_4_corners	Chrome	1/25/2010	Firefox	3/22/2011	421
css.properties.border-radius.elliptical_borders	Safari	10/26/2007	Firefox	3/22/2011	1243	Chrome: Before Chrome 4, the slash `/` notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. `-webkit-border-radius: 40px 10px;` is equivalent to `border-radius: 40px / 10px;`.Safari: Before Safari 5, the slash `/` notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. `-webkit-border-radius: 40px 10px;` is equivalent to `border-radius: 40px / 10px;`.
css.properties.border-radius.percentages	Chrome	12/2/2010	Safari	7/20/2011	230	Firefox: Before Firefox 4, `<percentage>` values are implemented in a non-standard way. Both horizontal and vertical radii were relative to the width of the border box.Opera: Before Opera 11.5, the implementation of `<percentage>` values was buggy.
css.properties.border-right 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-right.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-color.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-right-color.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50.Firefox for Android: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-bottom-style` was `solid`. This has been fixed in Firefox 50.
css.properties.border-right-style.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-style.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-width.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-width.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-right-width.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-spacing 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-start-end-radius 📋	Firefox	3/19/2019	Safari	9/20/2021	916
css.properties.border-start-start-radius 📋	Firefox	3/19/2019	Safari	9/20/2021	916
css.properties.border-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox for Android 50.
css.properties.border-style.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-style.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-top.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-color.currentColor 📋	Chrome	11/12/2013	Firefox	11/15/2016	1099
css.properties.border-top-color.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-left-radius 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox for Android 50.
css.properties.border-top-left-radius.elliptical_corners	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.border-top-left-radius.percentages	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 4, the `<percentage>` was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-top-right-radius 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if `border-style` was solid. This has been fixed in Firefox for Android 50.
css.properties.border-top-right-radius.elliptical_corners	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.border-top-right-radius.percentages	Chrome	1/25/2010	Firefox	3/22/2011	421	Firefox: Before Firefox 4, the `<percentage>` was relative to the width of the box even when specifying the radius for a height. This implied that `-moz-border-radius-bottomright` was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-top-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-top-style` was `solid`. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners (with `border-radius`) were always rendered as if `border-top-style` was `solid`. This has been fixed in Firefox for Android 50.
css.properties.border-top-style.dashed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.dotted 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.double 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.groove 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.inset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.outset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.ridge 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-style.solid 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-width.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-width.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-top-width.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-width.medium 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-width.thick 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.border-width.thin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.bottom 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: In Internet Explorer versions before 7, when both `top` and `bottom` are specified, the element position is overconstrained and the `top` property has precedence; the computed value of `bottom` is set to `-top`, while its specified value is ignored.
css.properties.bottom.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.bottom.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.bottom.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.box-align	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.box-decoration-break 📋	Safari	10/22/2013	Chrome	10/15/2024	4011	Chrome: This property is only supported for inline elements.Chrome Android: This property is only supported for inline elements.Edge: This property is only supported for inline elements.Quest Browser: This property is only supported for inline elements.Safari: This property is only supported for inline elements.Safari on iOS: This property is only supported for inline elements.Samsung Internet: This property is only supported for inline elements.WebView Android: This property is only supported for inline elements.WebView on iOS: This property is only supported for inline elements.
css.properties.box-decoration-break.clone 📋	Safari	10/22/2013	Chrome	10/15/2024	4011	Chrome: This value was only supported with the -webkit- prefix.Chrome Android: This value was only supported with the -webkit- prefix.Edge: This value was only supported with the -webkit- prefix.Quest Browser: This value was only supported with the -webkit- prefix.Opera: This value was only supported with the -webkit- prefix.Opera Android: This value was only supported with the -webkit- prefix.Samsung Internet: This value was only supported with the -webkit- prefix.WebView Android: This value was only supported with the -webkit- prefix.
css.properties.box-decoration-break.slice 📋	Safari	10/22/2013	Chrome	10/15/2024	4011	Chrome: This value was only supported with the -webkit- prefix.Chrome Android: This value was only supported with the -webkit- prefix.Edge: This value was only supported with the -webkit- prefix.Quest Browser: This value was only supported with the -webkit- prefix.Opera: This value was only supported with the -webkit- prefix.Opera Android: This value was only supported with the -webkit- prefix.Samsung Internet: This value was only supported with the -webkit- prefix.WebView Android: This value was only supported with the -webkit- prefix.
css.properties.box-direction	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.box-flex	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.box-ordinal-group	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.box-orient	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.box-pack	Safari	10/26/2007	Firefox	9/20/2016	3252
css.properties.box-shadow 📋	Chrome	3/8/2011	Safari	7/20/2011	134	Chrome: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Chrome Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Firefox: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Firefox for Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Internet Explorer: To use `box-shadow` in Internet Explorer 9 or later, you must set `border-collapse` to `separate`.Internet Explorer: Since version 5.5, Internet Explorer supports Microsoft's DropShadow and Shadow Filter. You can use this proprietary extension to cast a drop shadow (though the syntax and the effect are different from CSS3)Quest Browser: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Opera: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Opera Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Safari: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Safari on iOS: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.Samsung Internet: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.WebView Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.WebView on iOS: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a `width` of `100%`, then you'll see a scrollbar.
css.properties.box-shadow.inset	Chrome	12/11/2008	Safari	6/7/2010	543	Internet Explorer: `inset` must be the last keyword in the declaration.
css.properties.box-shadow.multiple_shadows	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.box-shadow.none 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.box-shadow.spread_radius	Chrome	12/11/2008	Safari	6/7/2010	543
css.properties.box-sizing 📋	Chrome	3/8/2011	Firefox	4/29/2014	1148	Chrome: `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.Chrome Android: `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.Firefox: Before Firefox 23, `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.Firefox for Android: Before Firefox for Android 23, `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.Internet Explorer: `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.Quest Browser: `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.Opera Android: `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.Samsung Internet: `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.WebView Android: `box-sizing` is not respected when the height is calculated from `window.getComputedStyle()`.
css.properties.box-sizing.border-box 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.box-sizing.content-box 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.break-after 📋	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-after.auto	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-after.left	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-after.page	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-after.paged_context 📋	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-after.paged_context.page	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-after.right	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-before 📋	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-before.auto	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-before.left	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-before.page	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-before.paged_context 📋	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-before.paged_context.page	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-before.right	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-inside 📋	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-inside.auto	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-inside.avoid	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-inside.avoid-column	Chrome	4/13/2016	Firefox	9/7/2021	1973
css.properties.break-inside.avoid-page	Chrome	4/13/2016	Firefox	9/7/2021	1973
css.properties.break-inside.multicol_context 📋	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.break-inside.multicol_context.avoid-column	Chrome	4/13/2016	Firefox	9/7/2021	1973
css.properties.break-inside.paged_context 📋	Chrome	4/13/2016	Firefox	1/29/2019	1021
css.properties.caption-side 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.caption-side.bottom	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.caption-side.top	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.caret-color 📋	Chrome	3/9/2017	Safari	4/12/2018	399
css.properties.caret-color.auto 📋	Chrome	3/9/2017	Safari	4/12/2018	399
css.properties.caret-color.currentColor 📋	Chrome	3/9/2017	Safari	4/12/2018	399
css.properties.caret-color.transparent 📋	Chrome	3/9/2017	Safari	4/12/2018	399
css.properties.clear 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.clear.both 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.clear.inline-end 📋	Firefox	8/8/2017	Chrome	10/10/2023	2254
css.properties.clear.inline-start 📋	Firefox	8/8/2017	Chrome	10/10/2023	2254
css.properties.clear.left 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.clear.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.clear.right 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.clip 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Before Internet Explorer 7, Internet Explorer incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`.Safari: Safari incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`.Safari on iOS: Safari on iOS incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`.WebView on iOS: WebView on iOS incorrectly interprets `clip: auto` as `clip: rect(auto, auto, auto, auto)`.
css.properties.clip.auto	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.clip-path 📋	Firefox	6/30/2009	Chrome	12/1/2016	2711	Edge: Only supports clip paths defined by `url()`.Internet Explorer: Only supports clip paths defined by `url()`.
css.properties.clip-path.basic_shape 📋	Chrome	11/6/2012	Firefox	6/13/2017	1680
css.properties.clip-path.border-box 📋	Firefox	6/13/2017	Chrome	10/31/2023	2331
css.properties.clip-path.content-box 📋	Firefox	6/13/2017	Chrome	10/31/2023	2331
css.properties.clip-path.fill-box 📋	Firefox	1/24/2017	Chrome	10/31/2023	2471	Firefox: This value was supported before Firefox 51, but as an alias to `border-box`.Firefox for Android: This value was supported before Firefox for Android 51, but as an alias to `border-box`.
css.properties.clip-path.html_elements	Firefox	6/30/2009	Safari	10/22/2013	1575
css.properties.clip-path.is_animatable	Firefox	9/20/2016	Safari	3/25/2019	916
css.properties.clip-path.margin-box 📋	Firefox	6/13/2017	Chrome	10/31/2023	2331
css.properties.clip-path.padding-box 📋	Firefox	6/13/2017	Chrome	10/31/2023	2331
css.properties.clip-path.path	Firefox	12/10/2019	Chrome	1/19/2021	406
css.properties.clip-path.stroke-box 📋	Firefox	1/24/2017	Chrome	10/31/2023	2471	Firefox: This value was supported before Firefox 51, but as an alias to `border-box`.Firefox for Android: This value was supported before Firefox for Android 51, but as an alias to `border-box`.
css.properties.clip-path.svg_elements	Chrome	11/6/2012	Firefox	3/7/2017	1582
css.properties.clip-path.view-box 📋	Firefox	6/13/2017	Chrome	10/31/2023	2331
css.properties.clip-rule 📋	Firefox	6/30/2009	Chrome	10/25/2011	847
css.properties.clip-rule.evenodd 📋	Firefox	6/30/2009	Chrome	10/25/2011	847
css.properties.clip-rule.nonzero 📋	Firefox	6/30/2009	Chrome	10/25/2011	847
css.properties.color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.color.transparent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.color-interpolation 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.color-interpolation.auto 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.color-interpolation.linearRGB 📋	Firefox	6/17/2008	Chrome	11/12/2013	1974
css.properties.color-interpolation.sRGB 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.color-interpolation-filters 📋	Safari	10/26/2007	Chrome	12/11/2008	412
css.properties.color-interpolation-filters.auto 📋	Safari	10/26/2007	Chrome	12/11/2008	412
css.properties.color-interpolation-filters.linearRGB 📋	Firefox	6/25/2013	Safari	9/30/2015	827
css.properties.color-interpolation-filters.sRGB 📋	Firefox	6/25/2013	Safari	9/30/2015	827
css.properties.color-scheme 📋	Safari	9/19/2019	Firefox	1/11/2022	845
css.properties.color-scheme.dark	Safari	9/19/2019	Firefox	1/11/2022	845
css.properties.color-scheme.light	Safari	9/19/2019	Firefox	1/11/2022	845
css.properties.color-scheme.normal	Safari	9/19/2019	Firefox	1/11/2022	845
css.properties.color-scheme.only	Safari	9/19/2019	Chrome	2/1/2022	866
css.properties.column-count 📋	Safari	9/30/2015	Firefox	3/7/2017	524	Firefox: Before version 37, multiple columns didn't work with `display: table-caption` elements.Firefox for Android: Before version 37, multiple columns didn't work with `display: table-caption` elements.
css.properties.column-count.auto 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
css.properties.column-fill 📋	Safari	9/30/2015	Firefox	3/7/2017	524
css.properties.column-fill.auto 📋	Firefox	11/20/2012	Chrome	4/13/2016	1240
css.properties.column-fill.balance 📋	Firefox	11/20/2012	Chrome	4/13/2016	1240
css.properties.column-gap 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
css.properties.column-gap.flex_context 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.column-gap.grid_context 📋	Chrome	4/17/2018	Safari	9/17/2018	153
css.properties.column-gap.multicol_context 📋	Chrome	4/13/2016	Firefox	3/7/2017	328	Firefox: Before Firefox 3, the default value for the `normal` keyword was `0` and not `1em`.
css.properties.column-gap.multicol_context.calc_values	Chrome	4/17/2018	Safari	3/25/2019	342
css.properties.column-gap.multicol_context.percentage_values	Chrome	4/17/2018	Safari	9/17/2018	153
css.properties.column-gap.normal 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
css.properties.column-rule 📋	Safari	9/30/2015	Firefox	3/7/2017	524	Firefox: Before Firefox 3, the default value for the `normal` keyword was `0` and not `1em`.
css.properties.column-rule.dashed 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.dotted 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.double 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.groove 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.hidden 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.inset 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.medium 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.none 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.outset 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.ridge 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.solid 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.thick 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.thin 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule.transparent 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-color 📋	Safari	9/30/2015	Firefox	3/7/2017	524
css.properties.column-rule-color.transparent 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style 📋	Safari	9/30/2015	Firefox	3/7/2017	524
css.properties.column-rule-style.dashed 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.dotted 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.double 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.groove 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.hidden 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.inset 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.none 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.outset 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.ridge 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-style.solid 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-width 📋	Safari	9/30/2015	Firefox	3/7/2017	524
css.properties.column-rule-width.medium 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-width.thick 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-rule-width.thin 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.column-span 📋	Safari	9/30/2015	Firefox	12/10/2019	1532
css.properties.column-span.all 📋	Chrome	9/2/2010	Firefox	12/10/2019	3386
css.properties.column-span.none 📋	Chrome	9/2/2010	Firefox	12/10/2019	3386
css.properties.column-width 📋	Safari	9/30/2015	Firefox	11/15/2016	412	Firefox: Before version 37, multiple columns didn't work with `display: table-caption` elements.Firefox for Android: Before version 37, multiple columns didn't work with `display: table-caption` elements.
css.properties.column-width.auto	Firefox	11/29/2005	Chrome	12/11/2008	1108
css.properties.columns 📋	Safari	9/30/2015	Firefox	3/7/2017	524	Firefox: Before version 37, multiple columns didn't work with `display: table-caption` elements.Firefox for Android: Before version 37, multiple columns didn't work with `display: table-caption` elements.
css.properties.columns.auto 📋	Safari	10/26/2007	Chrome	4/13/2016	3092
css.properties.contain 📋	Chrome	7/20/2016	Safari	3/14/2022	2063
css.properties.contain.content 📋	Chrome	7/20/2016	Safari	3/14/2022	2063
css.properties.contain.inline-size 📋	Firefox	5/31/2022	Safari	9/12/2022	104
css.properties.contain.layout 📋	Chrome	7/20/2016	Safari	3/14/2022	2063
css.properties.contain.none 📋	Chrome	7/20/2016	Safari	3/14/2022	2063
css.properties.contain.paint 📋	Chrome	7/20/2016	Safari	3/14/2022	2063
css.properties.contain.size 📋	Chrome	7/20/2016	Safari	3/14/2022	2063
css.properties.contain.strict 📋	Chrome	7/20/2016	Safari	3/14/2022	2063
css.properties.contain.style 📋	Chrome	7/20/2016	Firefox	7/26/2022	2197	Chrome: Before Chrome 115, style containment did not affect quotes, see bug 40592922.Chrome Android: Before Chrome Android 115, style containment did not affect quotes, see bug 40592922.Edge: Before Edge 115, style containment did not affect quotes, see bug 40592922.Quest Browser: Before Quest Browser false, style containment did not affect quotes, see bug 40592922.Opera: Before Opera 101, style containment did not affect quotes, see bug 40592922.Opera Android: Before Opera Android 77, style containment did not affect quotes, see bug 40592922.Safari: Style containment does not affect quotes, see bug 232083.Safari on iOS: Style containment does not affect quotes, see bug 232083.Samsung Internet: Before Samsung Internet 23.0, style containment did not affect quotes, see bug 40592922.WebView Android: Before WebView Android 115, style containment did not affect quotes, see bug 40592922.WebView on iOS: Style containment does not affect quotes, see bug 232083.
css.properties.contain-intrinsic-block-size 📋	Chrome	10/19/2021	Safari	9/18/2023	699
css.properties.contain-intrinsic-block-size.none 📋	Chrome	2/1/2022	Safari	9/18/2023	594
css.properties.contain-intrinsic-height 📋	Chrome	10/19/2021	Safari	9/18/2023	699
css.properties.contain-intrinsic-height.none 📋	Chrome	2/1/2022	Safari	9/18/2023	594
css.properties.contain-intrinsic-inline-size 📋	Chrome	10/19/2021	Safari	9/18/2023	699
css.properties.contain-intrinsic-inline-size.none 📋	Chrome	2/1/2022	Safari	9/18/2023	594
css.properties.contain-intrinsic-size 📋	Chrome	5/19/2020	Safari	9/18/2023	1217
css.properties.contain-intrinsic-size.auto_none	Firefox	8/29/2023	Safari	9/18/2023	20
css.properties.contain-intrinsic-size.none 📋	Chrome	2/1/2022	Safari	9/18/2023	594
css.properties.contain-intrinsic-width 📋	Chrome	10/19/2021	Safari	9/18/2023	699
css.properties.contain-intrinsic-width.none 📋	Chrome	2/1/2022	Safari	9/18/2023	594
css.properties.container 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container.inline-size 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container.none 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container.normal 📋	Safari	9/12/2022	Firefox	2/14/2023	155
css.properties.container.scroll-state 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container.size 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container-name 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container-name.none 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container-type 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container-type.inline-size 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container-type.normal 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container-type.size 📋	Chrome	9/2/2022	Firefox	2/14/2023	165
css.properties.container-type.weak_containment 📋	Chrome	9/17/2024	Safari	3/31/2025	195
css.properties.content 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content.alt_text	Chrome	9/10/2019	Firefox	7/9/2024	1764
css.properties.content.close-quote 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content.element_replacement	Chrome	7/9/2013	Firefox	10/23/2018	1932
css.properties.content.gradient 📋	Chrome	3/26/2013	Firefox	5/9/2023	3696	Firefox: `content: <gradient>` doesn't paint on ::before/::after pseudo elements. See bug 1832901.Firefox for Android: `content: <gradient>` doesn't paint on ::before/::after pseudo elements. See bug 1832901.
css.properties.content.image-set 📋	Firefox	6/1/2021	Safari	9/18/2023	839	Chrome: Support for `url` images only and `x` is the only supported resolution unit.Chrome Android: Support for `url` images only and `x` is the only supported resolution unit.Edge: Support for `url` images only and `x` is the only supported resolution unit.Firefox: The `type()` function is not supported as an argument to `image-set()`.Firefox for Android: The `type()` function is not supported as an argument to `image-set()`.Quest Browser: Support for `url` images only and `x` is the only supported resolution unit.Opera: Support for `url` images only and `x` is the only supported resolution unit.Opera Android: Support for `url` images only and `x` is the only supported resolution unit.Safari: The `type()` function is not supported as an argument to `image-set()`.Safari: The `type()` function is not supported as an argument to `image-set()`.Safari: Support for `url` images only and `x` is the only supported resolution unit.Safari: Support for `url` images only and `x` is the only supported resolution unit.Safari on iOS: The `type()` function is not supported as an argument to `image-set()`.Safari on iOS: The `type()` function is not supported as an argument to `image-set()`.Safari on iOS: Support for `url` images only and `x` is the only supported resolution unit.Safari on iOS: Support for `url` images only and `x` is the only supported resolution unit.Samsung Internet: Support for `url` images only and `x` is the only supported resolution unit.WebView Android: Support for `url` images only and `x` is the only supported resolution unit.WebView on iOS: The `type()` function is not supported as an argument to `image-set()`.WebView on iOS: The `type()` function is not supported as an argument to `image-set()`.WebView on iOS: Support for `url` images only and `x` is the only supported resolution unit.WebView on iOS: Support for `url` images only and `x` is the only supported resolution unit.
css.properties.content.no-close-quote 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content.no-open-quote 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content.normal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content.open-quote 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content.url 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.content-visibility 📋	Chrome	8/25/2020	Safari	9/16/2024	1483
css.properties.content-visibility.auto 📋	Chrome	8/25/2020	Safari	9/15/2025	1847	Safari: Skipped content is not findable via find-in-page.Safari on iOS: Skipped content is not findable via find-in-page.WebView on iOS: Skipped content is not findable via find-in-page.
css.properties.content-visibility.hidden 📋	Chrome	8/25/2020	Safari	9/16/2024	1483
css.properties.content-visibility.visible 📋	Chrome	8/25/2020	Safari	9/16/2024	1483
css.properties.counter-increment 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.counter-increment.list-item 📋	Firefox	11/9/2004	Safari	9/30/2015	3977
css.properties.counter-increment.none 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.counter-reset 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.counter-reset.list-item 📋	Firefox	11/9/2004	Safari	9/30/2015	3977	Chrome: Overriding the initial value of the implicit `list-item` counter has no effect when the default marker string for list items (`::marker`) is generated; see bug 338233131.Chrome Android: Overriding the initial value of the implicit `list-item` counter has no effect when the default marker string for list items (`::marker`) is generated; see bug 338233131.Quest Browser: Overriding the initial value of the implicit `list-item` counter has no effect when the default marker string for list items (`::marker`) is generated; see bug 338233131.Opera: Overriding the initial value of the implicit `list-item` counter has no effect when the default marker string for list items (`::marker`) is generated; see bug 338233131.Opera Android: Overriding the initial value of the implicit `list-item` counter has no effect when the default marker string for list items (`::marker`) is generated; see bug 338233131.Safari: Overriding the initial value of the implicit `list-item` counter results in incorrect values for the `counter()` function used to generate content, as it is not fully implemented; see bug 260436.Safari on iOS: Overriding the initial value of the implicit `list-item` counter results in incorrect values for the `counter()` function used to generate content, as it is not fully implemented; see bug 260436.Samsung Internet: Overriding the initial value of the implicit `list-item` counter has no effect when the default marker string for list items (`::marker`) is generated; see bug 338233131.WebView Android: Overriding the initial value of the implicit `list-item` counter has no effect when the default marker string for list items (`::marker`) is generated; see bug 338233131.WebView on iOS: Overriding the initial value of the implicit `list-item` counter results in incorrect values for the `counter()` function used to generate content, as it is not fully implemented; see bug 260436.
css.properties.counter-reset.none 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.counter-set 📋	Firefox	7/9/2019	Safari	12/11/2023	1616
css.properties.counter-set.list-item 📋	Firefox	7/9/2019	Safari	12/11/2023	1616
css.properties.counter-set.none 📋	Firefox	7/9/2019	Safari	12/11/2023	1616
css.properties.cursor 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Starting in Firefox 67, the maximum size allowed for custom cursors is 32x32 pixels due to cursors being misused by certain malicious sites.Internet Explorer: In Internet Explorer 11, when `cursor` is applied to an element and this element is underneath an open `<select>` menu and the user hovers over a `<select>` menu item that's on top of said element, the cursor for said element will be displayed rather than the `<select>`'s normal cursor. See bug 817822.Safari on iOS: This property is only supported on iPads with an external pointing device.Safari on iOS: Unsupported values use the `default` pointer as a fallback.WebView on iOS: This property is only supported on iPads with an external pointing device.WebView on iOS: Unsupported values use the `default` pointer as a fallback.
css.properties.cursor.alias 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.all-scroll 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.auto 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.cursor.cell 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
css.properties.cursor.col-resize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.context-menu 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Chrome: This cursor is only supported on macOS and Linux.Chrome Android: This cursor is only supported on macOS and Linux.Firefox: This cursor is only supported on macOS and Linux.Quest Browser: This cursor is only supported on macOS and Linux.Opera Android: This cursor is only supported on macOS and Linux.Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.Samsung Internet: This cursor is only supported on macOS and Linux.WebView Android: This cursor is only supported on macOS and Linux.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.copy 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.crosshair 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.default 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.e-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.ew-resize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.grab	Firefox	2/4/2014	Chrome	7/24/2018	1631	Chrome: Chrome also continues to support the prefixed versions.Chrome: Chrome 22 added Windows support.Chrome Android: Chrome Android also continues to support the prefixed versions.Chrome Android: Chrome Android 25 added Windows support.Quest Browser: Quest Browser also continues to support the prefixed versions.Quest Browser: Quest Browser 5.0 added Windows support.Opera: Opera also continues to support the prefixed versions.Opera: Opera 22 added Windows support.Opera Android: Opera also continues to support the prefixed versions.Opera Android: Opera 22 added Windows support.Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView Android: WebView Android also continues to support the prefixed versions.WebView Android: WebView Android 4.4 added Windows support.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.grabbing 📋	Firefox	2/4/2014	Chrome	7/24/2018	1631	Chrome: Chrome 22 added Windows support.Chrome Android: Chrome Android 25 added Windows support.Edge: Edge 79 added Windows support.Quest Browser: Quest Browser 5.0 added Windows support.Opera: Opera 15 added Windows support.Opera Android: Opera Android 14 added Windows support.Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.Samsung Internet: Samsung Internet 1.5 added Windows support.WebView Android: WebView Android 4.4 added Windows support.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.help 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.move 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.n-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.ne-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.nesw-resize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.no-drop 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.none 📋	Firefox	6/17/2008	Safari	6/7/2010	720	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.not-allowed 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.ns-resize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.nw-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.nwse-resize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.pointer 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.progress 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.row-resize 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.s-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.se-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.sw-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.text 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.cursor.url	Firefox	11/29/2005	Chrome	12/11/2008	1108	Firefox: Firefox 4 added macOS support.
css.properties.cursor.url_positioning_syntax	Firefox	11/29/2005	Chrome	12/11/2008	1108	Firefox: Firefox 4 added macOS support.Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.vertical-text 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.w-resize 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.wait 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.zoom-in 📋	Firefox	9/17/2013	Safari	9/30/2015	743	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.cursor.zoom-out 📋	Firefox	9/17/2013	Safari	9/30/2015	743	Safari on iOS: If this value is used, the iPad will display the `default` pointer instead.WebView on iOS: If this value is used, the iPad will display the `default` pointer instead.
css.properties.custom-property 📋	Firefox	7/22/2014	Safari	3/21/2016	608
css.properties.cx 📋	Chrome	5/19/2015	Firefox	9/3/2019	1568
css.properties.cy 📋	Chrome	5/19/2015	Firefox	9/3/2019	1568
css.properties.direction 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.direction.ltr 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.direction.rtl 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.direction.vertical_slider_direction	Safari	5/18/2023	Chrome	4/16/2024	334	Firefox: Only supported for vertical range sliders.Firefox for Android: Only supported for vertical range sliders.Safari: Only supported for vertical range sliders.Safari on iOS: Only supported for vertical range sliders.WebView on iOS: Only supported for vertical range sliders.
css.properties.display 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.block 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.contents 📋	Firefox	3/31/2015	Safari	4/12/2018	1108
css.properties.display.flex	Firefox	4/2/2013	Safari	9/30/2015	911	Firefox: Firefox 28 added multi-line flexbox support.Firefox for Android: Firefox for Android 28 added multi-line flexbox support.Internet Explorer: IE incorrectly positions inline block content inside flex containers. See the discussion on Microsoft Answers.Internet Explorer: IE incorrectly positions inline block content inside flex containers. See the discussion on Microsoft Answers.
css.properties.display.flow-root	Chrome	4/19/2017	Safari	9/19/2019	883
css.properties.display.grid	Firefox	3/7/2017	Safari	3/27/2017	20	Internet Explorer: Internet Explorer implements an older version of the specification.Samsung Internet: Samsung Internet added this earlier than the corresponding Chrome version would indicate.
css.properties.display.inline 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.inline-block	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Until Internet Explorer 8, `inline-block` is only for natural inline elements.
css.properties.display.inline-flex	Firefox	4/2/2013	Safari	9/30/2015	911	Firefox: Firefox 28 added multi-line flexbox support.Firefox for Android: Firefox for Android 28 added multi-line flexbox support.
css.properties.display.inline-grid	Firefox	3/7/2017	Safari	3/27/2017	20	Internet Explorer: Internet Explorer implements an older version of the specification.Samsung Internet: Samsung Internet added this earlier than the corresponding Chrome version would indicate.
css.properties.display.inline-table	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.list-item 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.multi-keyword_values	Firefox	10/22/2019	Chrome	7/18/2023	1365
css.properties.display.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Chrome 65 stopped creating layout objects for elements inside an `<iframe>` with `display:none` applied.Chrome Android: Chrome Android 65 stopped creating layout objects for elements inside an `<iframe>` with `display:none` applied.Quest Browser: Quest Browser 5.0 stopped creating layout objects for elements inside an `<iframe>` with `display:none` applied.Opera: Opera 52 stopped creating layout objects for elements inside an `<iframe>` with `display:none` applied.Opera Android: Opera Android 47 stopped creating layout objects for elements inside an `<iframe>` with `display:none` applied.Samsung Internet: Chrome 65 stopped creating layout objects for elements inside an `<iframe>` with `display:none` applied.WebView Android: WebView Android 65 stopped creating layout objects for elements inside an `<iframe>` with `display:none` applied.
css.properties.display.table	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.table-caption	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.display.table-cell	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.table-column	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.table-column-group	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.table-footer-group	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.table-header-group	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.table-row	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.display.table-row-group	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.dominant-baseline 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.dominant-baseline.alphabetic 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.dominant-baseline.auto 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.dominant-baseline.central 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.dominant-baseline.hanging 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.dominant-baseline.ideographic 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.dominant-baseline.mathematical 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.dominant-baseline.middle 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.empty-cells 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.empty-cells.hide 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.empty-cells.show 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.fill 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.fill.none 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.fill-opacity 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.fill-rule 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.fill-rule.evenodd 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.fill-rule.nonzero 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.filter 📋	Firefox	1/13/2015	Chrome	8/31/2016	596	Internet Explorer: Internet Explorer 4 to 9 implemented a non-standard `filter` property. The syntax was completely different from this one and is not documented here.
css.properties.filter.blur 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.brightness 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.contrast 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.drop-shadow 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.grayscale 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.hue-rotate 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.invert 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.none 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.opacity 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.filter.saturate 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021	Chrome: In Chrome 18 to 19, the `saturate()` function only takes integers instead of decimal or percentage values. From Chrome 20, this bug is fixed.
css.properties.filter.sepia 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.properties.flex 📋	Firefox	6/25/2013	Safari	9/30/2015	827	Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox: Before Firefox 32, Firefox wasn't able to animate values starting or stopping at `0`.Firefox: Until Firefox 61, flex items that are sized according to their content are sized using `fit-content`, not `max-content`.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.Firefox for Android: Before Firefox for Android 32, Firefox for Android wasn't able to animate values starting or stopping at `0`.Firefox for Android: Until Firefox for Android 61, flex items that are sized according to their content are sized using `fit-content`, not `max-content`.Internet Explorer: Internet Explorer 11 ignores uses of `calc()` in the `flex-basis` part of the `flex` syntax. This can be worked around by using the longhand properties instead of the shorthand. See Flexbug #8 for more info.Internet Explorer: Internet Explorer 11 considers a unitless value in the `flex-basis` part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the `flex-basis` part of the `flex` shorthand value. See Flexbug #4 for more info.Internet Explorer: Internet Explorer 10 and 11 ignore uses of `calc()` in the `flex-basis` part of the `flex` syntax. This can be worked around by using the longhand properties instead of the shorthand. See Flexbug #8 for more info.Internet Explorer: Internet Explorer 10 and 11 consider a unitless value in the `flex-basis` part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the `flex-basis` part of the `flex` shorthand value. See Flexbug #4 for more info.
css.properties.flex.auto 📋	Chrome	7/31/2012	Safari	10/22/2013	448
css.properties.flex.content 📋	Firefox	6/26/2018	Chrome	9/21/2021	1183
css.properties.flex.fit-content 📋	Chrome	9/21/2021	Safari	9/12/2022	356
css.properties.flex.max-content 📋	Firefox	3/19/2019	Safari	9/12/2022	1273
css.properties.flex.min-content 📋	Firefox	3/19/2019	Safari	9/12/2022	1273
css.properties.flex.none 📋	Chrome	7/31/2012	Safari	10/22/2013	448
css.properties.flex-basis 📋	Firefox	6/25/2013	Safari	9/30/2015	827	Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.Internet Explorer: When a non-`auto` `flex-basis` is specified, Internet Explorer 10 and 11 always uses a `content-box` box model to calculate the size of a flex item, even if `box-sizing: border-box` is applied to the element. See Flexbug #7 for more info.
css.properties.flex-basis.auto	Chrome	9/25/2012	Safari	9/30/2015	1100
css.properties.flex-basis.content	Firefox	6/26/2018	Safari	3/14/2022	1357
css.properties.flex-basis.fit-content	Chrome	9/21/2021	Safari	9/12/2022	356
css.properties.flex-basis.max-content	Firefox	3/19/2019	Safari	9/12/2022	1273
css.properties.flex-basis.min-content	Firefox	3/19/2019	Safari	9/12/2022	1273
css.properties.flex-direction 📋	Firefox	6/25/2013	Safari	9/30/2015	827	Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.
css.properties.flex-direction.column 📋	Chrome	7/31/2012	Safari	10/22/2013	448
css.properties.flex-direction.column-reverse 📋	Chrome	7/31/2012	Firefox	9/22/2020	2975	Firefox: Before Firefox 81, overflow with `column-reverse` was unsupported. See bug 1042151.Firefox for Android: Before Firefox for Android 81, overflow with `column-reverse` was unsupported. See bug 1042151.
css.properties.flex-direction.row 📋	Chrome	7/31/2012	Safari	10/22/2013	448
css.properties.flex-direction.row-reverse 📋	Chrome	7/31/2012	Firefox	9/22/2020	2975	Firefox: Before Firefox 81, overflow with `column-reverse` was unsupported. See bug 1042151.Firefox for Android: Before Firefox for Android 81, overflow with `column-reverse` was unsupported. See bug 1042151.
css.properties.flex-flow 📋	Chrome	8/20/2013	Safari	9/30/2015	771
css.properties.flex-flow.column 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-flow.column-reverse 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-flow.nowrap 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-flow.row 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-flow.row-reverse 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-flow.wrap 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-flow.wrap-reverse 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-grow 📋	Firefox	4/2/2013	Safari	9/30/2015	911	Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.
css.properties.flex-shrink 📋	Firefox	4/2/2013	Safari	9/30/2015	911	Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox: Before Firefox 32, Firefox wasn't able to animate values starting or stopping at `0`.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.Firefox for Android: Before Firefox for Android 32, Firefox for Android wasn't able to animate values starting or stopping at `0`.Internet Explorer: Internet Explorer 10 uses `0` instead of `1` as the initial value for the `flex-shrink` property. A workaround is to always set an explicit value for `flex-shrink`. See Flexbug #6 for more info.
css.properties.flex-wrap 📋	Chrome	8/20/2013	Safari	9/30/2015	771	Internet Explorer: Partial support due to large number of bugs present. See Flexbugs.
css.properties.flex-wrap.nowrap 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-wrap.wrap 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.flex-wrap.wrap-reverse 📋	Chrome	7/31/2012	Firefox	3/18/2014	595
css.properties.float 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.float.inline-end 📋	Firefox	8/8/2017	Chrome	10/10/2023	2254
css.properties.float.inline-start 📋	Firefox	8/8/2017	Chrome	10/10/2023	2254
css.properties.float.left 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.float.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.float.right 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.flood-color 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
css.properties.flood-color.currentColor 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
css.properties.flood-color.transparent 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
css.properties.flood-opacity 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
css.properties.font 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font.caption	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font.font-width_keyword_values	Firefox	12/15/2015	Safari	9/19/2017	644
css.properties.font.icon	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font.menu	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font.message-box	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font.small-caption	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font.status-bar	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Not supported on `option` elements. See bug 1536148.Safari: Setting `font-family: initial` behaves like `font-family: inherit`. See bug 200709.Safari on iOS: Setting `font-family: initial` behaves like `font-family: inherit`. See bug 200709.WebView on iOS: Setting `font-family: initial` behaves like `font-family: inherit`. See bug 200709.
css.properties.font-family.cursive 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.fangsong 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.fantasy 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.kai 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.khmer-mul 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.math	Chrome	1/10/2023	Safari	12/12/2025	1067
css.properties.font-family.monospace 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.nastaliq 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.sans-serif 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.serif 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-family.system-ui	Chrome	1/25/2017	Firefox	9/7/2021	1686	Firefox: Supported on macOS only.
css.properties.font-feature-settings 📋	Firefox	12/1/2014	Safari	3/21/2016	476	Firefox: The ISO/IEC CD 14496-22 3rd edition suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS.Firefox: From Firefox 129 the `-webkit-font-feature-settings` alias has been added to support sites that are still supporting the vendor prefix.Firefox: From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See OpenType Font Feature support in Firefox 4.Firefox for Android: The ISO/IEC CD 14496-22 3rd edition suggests using the `ssty` feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox for Android 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the `dtls` feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox for Android 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS.Firefox for Android: From Firefox for Android 129 the `-webkit-font-feature-settings` alias has been added to support sites that are still supporting the vendor prefix.Firefox for Android: From Firefox for Android 4 to Firefox for Android 14 (inclusive), Firefox for Android supported an older, slightly different syntax. See OpenType Font Feature support in Firefox for Android 4.
css.properties.font-feature-settings.normal 📋	Chrome	12/13/2011	Safari	3/21/2016	1560
css.properties.font-kerning 📋	Chrome	2/20/2014	Safari	9/30/2015	587
css.properties.font-kerning.auto 📋	Chrome	2/20/2014	Safari	9/30/2015	587
css.properties.font-kerning.none 📋	Chrome	2/20/2014	Safari	9/30/2015	587
css.properties.font-kerning.normal 📋	Chrome	2/20/2014	Safari	9/30/2015	587
css.properties.font-optical-sizing 📋	Firefox	9/5/2018	Safari	3/24/2020	566
css.properties.font-optical-sizing.auto 📋	Firefox	9/5/2018	Safari	3/24/2020	566
css.properties.font-optical-sizing.none 📋	Firefox	9/5/2018	Safari	3/24/2020	566
css.properties.font-palette 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.properties.font-palette.dark 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.properties.font-palette.light 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.properties.font-palette.normal 📋	Safari	3/14/2022	Firefox	11/15/2022	246
css.properties.font-size 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-size.rem_values	Safari	10/22/2013	Firefox	7/22/2014	273	Firefox: Before Firefox 57, animations using em units are not affected by changes to the `font-size` of the animated element's parent (bug 1254424).Firefox: Before Firefox 57, some language settings' inherited `font-size` is smaller than expected (bug 1391341).
css.properties.font-size.xxx-large	Firefox	10/22/2019	Safari	3/27/2023	1252
css.properties.font-size-adjust 📋	Firefox	6/17/2008	Chrome	7/23/2024	5880	Firefox: Before Firefox 40, `font-size-adjust: 0` was incorrectly interpreted as `font-size-adjust: none` (bug 1144885).Firefox: Only supported on Windows.Firefox for Android: Before Firefox for Android 40, `font-size-adjust: 0` was incorrectly interpreted as `font-size-adjust: none` (bug 1144885).
css.properties.font-size-adjust.from-font 📋	Safari	9/18/2023	Chrome	7/23/2024	309
css.properties.font-size-adjust.none 📋	Firefox	6/17/2008	Chrome	7/23/2024	5880
css.properties.font-size-adjust.two-values	Firefox	9/7/2021	Chrome	7/23/2024	1050
css.properties.font-smooth	Safari	6/8/2009	Firefox	10/29/2013	1604	Firefox: Only works on macOS.
css.properties.font-stretch 📋	Firefox	12/20/2011	Safari	9/19/2017	2100	Chrome: A `font-stretch` declaration must be added to the `@font-face` before this property will function.Chrome Android: A `font-stretch` declaration must be added to the `@font-face` before this property will function.Quest Browser: A `font-stretch` declaration must be added to the `@font-face` before this property will function.Opera: A `font-stretch` declaration must be added to the `@font-face` before this property will function.Opera Android: A `font-stretch` declaration must be added to the `@font-face` before this property will function.Samsung Internet: A `font-stretch` declaration must be added to the `@font-face` before this property will function.WebView Android: A `font-stretch` declaration must be added to the `@font-face` before this property will function.
css.properties.font-stretch.condensed 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.expanded 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.extra-condensed 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.extra-expanded 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.normal 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.percentage	Chrome	10/17/2017	Firefox	6/26/2018	252
css.properties.font-stretch.semi-condensed 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.semi-expanded 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.ultra-condensed 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-stretch.ultra-expanded 📋	Firefox	12/20/2011	Safari	9/19/2017	2100
css.properties.font-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 44, `oblique` was not distinguished from `italic`.Firefox for Android: Before Firefox for Android 44, `oblique` was not distinguished from `italic`.
css.properties.font-style.italic 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-style.normal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-style.oblique 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-style.oblique-angle 📋	Chrome	10/17/2017	Firefox	6/26/2018	252	Chrome: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Chrome Android: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Edge: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Quest Browser: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Opera: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Opera Android: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Safari: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Safari on iOS: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.Samsung Internet: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.WebView Android: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.WebView on iOS: Angles from 14 to 90 have the same effect as `font-style: oblique` (with a slant of 14 degrees). Angles from -90 to 13 have the same effect as `font-style: normal` (without a slant). In some cases (e.g. with vertical `writing-mode`), a negative angle produces a slant. See bug 425388876.
css.properties.font-synthesis 📋	Firefox	12/1/2014	Chrome	1/4/2022	2591
css.properties.font-synthesis.none 📋	Firefox	12/1/2014	Chrome	1/4/2022	2591
css.properties.font-synthesis.small-caps	Safari	3/27/2017	Chrome	1/4/2022	1744
css.properties.font-synthesis.style	Firefox	12/1/2014	Chrome	1/4/2022	2591
css.properties.font-synthesis.weight	Firefox	12/1/2014	Chrome	1/4/2022	2591
css.properties.font-synthesis-small-caps 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-small-caps.auto 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-small-caps.none 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-style 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-style.auto 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-style.none 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-weight 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-weight.auto 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-synthesis-weight.none 📋	Chrome	1/4/2022	Safari	3/27/2023	447
css.properties.font-variant 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Only supports the `small-caps` and `normal` keywords.
css.properties.font-variant.css_fonts_shorthand	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant.historical-forms 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant.none 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant.normal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.font-variant.sub 📋	Firefox	12/1/2014	Chrome	2/7/2023	2990
css.properties.font-variant.super 📋	Firefox	12/1/2014	Chrome	2/7/2023	2990
css.properties.font-variant.turkic_is	Firefox	7/17/2012	Safari	10/16/2014	821
css.properties.font-variant-alternates 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.annotation 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.character_variant 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.historical-forms 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.normal 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.ornaments 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.styleset 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.stylistic 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-alternates.swash 📋	Firefox	12/1/2014	Chrome	3/7/2023	3018
css.properties.font-variant-caps 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-caps.all-petite-caps 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-caps.all-small-caps 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-caps.normal 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-caps.petite-caps 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-caps.small-caps 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-caps.titling-caps 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-caps.unicase 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-east-asian 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.full-width 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.jis04 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.jis78 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.jis83 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.jis90 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.normal 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.proportional-width 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.ruby 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.simplified 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-east-asian.traditional 📋	Firefox	12/1/2014	Chrome	12/6/2017	1101
css.properties.font-variant-emoji 📋	Safari	5/13/2024	Firefox	7/22/2025	435
css.properties.font-variant-ligatures 📋	Chrome	4/8/2014	Safari	3/21/2016	713
css.properties.font-variant-ligatures.common-ligatures 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.contextual 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.discretionary-ligatures 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.historical-ligatures 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.no-common-ligatures 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.no-contextual 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.no-discretionary-ligatures 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.no-historical-ligatures 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.none 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-ligatures.normal 📋	Safari	10/22/2013	Firefox	12/1/2014	405
css.properties.font-variant-numeric 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.diagonal-fractions 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.lining-nums 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.normal 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.oldstyle-nums 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.ordinal 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.proportional-nums 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.slashed-zero 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.stacked-fractions 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-numeric.tabular-nums 📋	Firefox	12/1/2014	Chrome	7/20/2016	597
css.properties.font-variant-position 📋	Firefox	12/1/2014	Chrome	9/12/2023	3207
css.properties.font-variant-position.normal 📋	Firefox	12/1/2014	Chrome	9/12/2023	3207
css.properties.font-variant-position.sub 📋	Firefox	12/1/2014	Chrome	9/12/2023	3207	Chrome: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 352218916).Chrome Android: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 352218916).Edge: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 352218916).Opera: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 352218916).Opera Android: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 352218916).Safari: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 151471).Safari on iOS: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 151471).Samsung Internet: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 352218916).WebView Android: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 352218916).WebView on iOS: If the font does not have subscript glyphs, then substitute characters are not synthesized (see bug 151471).
css.properties.font-variant-position.super 📋	Firefox	12/1/2014	Chrome	9/12/2023	3207	Chrome: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 352218916).Chrome Android: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 352218916).Edge: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 352218916).Opera: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 352218916).Opera Android: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 352218916).Safari: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 151471).Safari on iOS: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 151471).Samsung Internet: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 352218916).WebView Android: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 352218916).WebView on iOS: If the font does not have superscript glyphs, then substitute characters are not synthesized (see bug 151471).
css.properties.font-variation-settings 📋	Safari	9/19/2017	Firefox	9/5/2018	351	Safari: Requires macOS 10.13 High Sierra or later.Safari on iOS: Requires iOS 11 or later.WebView on iOS: Requires iOS 11 or later.
css.properties.font-variation-settings.normal 📋	Safari	9/19/2017	Firefox	9/5/2018	351
css.properties.font-weight 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.font-weight.bold 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.font-weight.bolder 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.font-weight.lighter 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.font-weight.normal 📋	Safari	6/23/2003	Chrome	5/21/2009	2159
css.properties.font-weight.number	Safari	9/19/2017	Firefox	6/26/2018	280
css.properties.gap 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.gap.flex_context 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.gap.grid_context 📋	Chrome	4/17/2018	Safari	9/17/2018	153
css.properties.gap.grid_context.calc_values	Firefox	3/7/2017	Safari	3/25/2019	748
css.properties.gap.grid_context.percentage_values	Firefox	3/7/2017	Chrome	4/17/2018	406
css.properties.gap.multicol_context 📋	Chrome	4/17/2018	Safari	4/26/2021	1105
css.properties.gap.normal 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid 📋	Firefox	3/7/2017	Safari	3/27/2017	20	Samsung Internet: This was added early so is out of sync with the equivalent Chromium version.
css.properties.grid.none 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-area 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-area.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-auto-columns 📋	Chrome	3/9/2017	Firefox	10/22/2019	957	Firefox: Does not accept multiple track-size values. See bug 1339672.Firefox for Android: Does not accept multiple track-size values. See bug 1339672.
css.properties.grid-auto-columns.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-auto-columns.max-content 📋	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.grid-auto-columns.min-content 📋	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.grid-auto-flow 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-auto-flow.column 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-auto-flow.dense 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-auto-flow.row 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-auto-rows 📋	Chrome	3/9/2017	Firefox	10/22/2019	957	Firefox: Does not accept multiple track-size values. See bug 1339672.Firefox for Android: Does not accept multiple track-size values. See bug 1339672.
css.properties.grid-auto-rows.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-auto-rows.max-content 📋	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.grid-auto-rows.min-content 📋	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.grid-column 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-column.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-column-end 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-column-end.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-column-start 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-column-start.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-row 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-row.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-row-end 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-row-end.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-row-start 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-row-start.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template.none 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-areas 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-areas.none 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns.animation	Firefox	3/19/2019	Chrome	10/25/2022	1316
css.properties.grid-template-columns.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns.fit-content 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns.max-content 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns.min-content 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns.minmax 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns.none 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-columns.repeat 📋	Chrome	3/9/2017	Firefox	5/5/2020	1153	Firefox: `repeat(auto-fill, ...)` and `repeat(auto-fit, ...)` only support one repeated column (see bug 1341507).Firefox: `calc()` doesn't work in `repeat()` (see bug 1350069).Firefox for Android: `repeat(auto-fill, ...)` and `repeat(auto-fit, ...)` only support one repeated column (see bug 1341507).Firefox for Android: `calc()` doesn't work in `repeat()` (see bug 1350069).
css.properties.grid-template-columns.subgrid 📋	Firefox	12/10/2019	Chrome	9/12/2023	1372
css.properties.grid-template-rows 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-rows.animation	Firefox	3/19/2019	Chrome	10/25/2022	1316
css.properties.grid-template-rows.auto 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-rows.fit-content 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-rows.max-content 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-rows.min-content 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-rows.minmax 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-rows.none 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.grid-template-rows.repeat 📋	Chrome	3/9/2017	Firefox	5/5/2020	1153	Firefox: `repeat(auto-fill, ...)` and `repeat(auto-fit, ...)` only support one repeated column (see bug 1341507).Firefox: `calc()` doesn't work in `repeat()` (see bug 1350069).Firefox for Android: `repeat(auto-fill, ...)` and `repeat(auto-fit, ...)` only support one repeated column (see bug 1341507).Firefox for Android: `calc()` doesn't work in `repeat()` (see bug 1350069).
css.properties.grid-template-rows.subgrid 📋	Firefox	12/10/2019	Chrome	9/12/2023	1372
css.properties.height 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.height.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.height.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.height.fit-content 📋	Chrome	10/13/2015	Firefox	11/2/2021	2212
css.properties.height.max-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.height.min-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.height.stretch 📋	Safari	9/30/2015	Firefox	12/9/2025	3723
css.properties.hyphenate-character 📋	Firefox	3/8/2022	Safari	9/18/2023	559
css.properties.hyphenate-character.auto 📋	Chrome	9/2/2010	Firefox	3/8/2022	4205
css.properties.hyphens 📋	Firefox	12/15/2015	Safari	9/18/2023	2834	Edge: Only works if the specified language is the same as the language of the underlying OS.Internet Explorer: Only works if the specified language is the same as the language of the underlying OS.
css.properties.hyphens.auto	Safari	7/20/2011	Chrome	1/19/2021	3471	Chrome: Only supported on macOS.Edge: Only supported on macOS.Opera: Only supported on macOS.
css.properties.hyphens.language_croatian	Firefox	11/8/2011	Chrome	11/17/2020	3297
css.properties.hyphens.language_czech	Safari	3/21/2016	Firefox	9/3/2024	3088
css.properties.hyphens.language_danish	Safari	7/20/2011	Chrome	11/17/2020	3408
css.properties.hyphens.language_dutch	Safari	7/20/2011	Chrome	4/4/2023	4276
css.properties.hyphens.language_english	Safari	7/20/2011	Chrome	12/1/2016	1961	Firefox: For English, Firefox uses an en-US dictionaryFirefox for Android: For English, Firefox for Android uses an en-US dictionarySafari: For English, Safari uses different en-GB and en-US dictionaries.Safari on iOS: For English, Safari on iOS uses different en-GB and en-US dictionaries.WebView on iOS: For English, WebView on iOS uses different en-GB and en-US dictionaries.
css.properties.hyphens.language_french	Safari	7/20/2011	Chrome	11/17/2020	3408
css.properties.hyphens.language_german_reformed_orthography	Safari	7/20/2011	Chrome	11/17/2020	3408
css.properties.hyphens.language_hungarian	Firefox	12/20/2011	Chrome	11/17/2020	3255
css.properties.hyphens.language_italian	Safari	7/20/2011	Chrome	4/4/2023	4276
css.properties.hyphens.language_norwegian_no	Safari	7/20/2011	Chrome	11/17/2020	3408
css.properties.hyphens.language_portuguese	Firefox	11/8/2011	Chrome	11/17/2020	3297
css.properties.hyphens.language_russian	Safari	7/20/2011	Chrome	4/4/2023	4276
css.properties.hyphens.language_spanish	Safari	7/20/2011	Chrome	11/17/2020	3408
css.properties.hyphens.language_swedish	Safari	7/20/2011	Chrome	4/4/2023	4276
css.properties.hyphens.language_ukrainian	Firefox	12/20/2011	Chrome	4/4/2023	4123
css.properties.hyphens.manual	Safari	7/20/2011	Chrome	1/19/2021	3471	Chrome: Only supported on macOS.Edge: Only supported on macOS.Opera: Only supported on macOS.
css.properties.hyphens.none	Safari	7/20/2011	Chrome	1/19/2021	3471	Chrome: Only supported on macOS.Edge: Only supported on macOS.Opera: Only supported on macOS.
css.properties.image-orientation 📋	Firefox	12/10/2013	Chrome	4/7/2020	2310
css.properties.image-orientation.from-image 📋	Firefox	12/10/2013	Chrome	4/7/2020	2310
css.properties.image-orientation.none 📋	Firefox	12/10/2013	Chrome	4/7/2020	2310
css.properties.image-rendering 📋	Firefox	1/21/2010	Safari	7/25/2012	916
css.properties.image-rendering.auto 📋	Firefox	1/21/2010	Safari	7/25/2012	916
css.properties.image-rendering.crisp-edges 📋	Chrome	8/2/2011	Firefox	1/29/2019	2737
css.properties.image-rendering.pixelated 📋	Chrome	3/3/2015	Firefox	10/5/2021	2408
css.properties.inline-size 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.inline-size.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inline-size.auto 📋	Chrome	12/2/2010	Firefox	9/22/2015	1755
css.properties.inline-size.fit-content 📋	Chrome	3/9/2017	Firefox	11/2/2021	1699
css.properties.inline-size.max-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.inline-size.min-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.inset 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.inset.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inset.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.inset.auto 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.inset-block 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.inset-block.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inset-block.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.inset-block.auto 📋	Firefox	9/22/2015	Safari	4/26/2021	2043
css.properties.inset-block-end 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.inset-block-end.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inset-block-end.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.inset-block-end.auto 📋	Firefox	9/22/2015	Safari	4/26/2021	2043
css.properties.inset-block-start 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.inset-block-start.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inset-block-start.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.inset-block-start.auto 📋	Firefox	9/22/2015	Safari	4/26/2021	2043
css.properties.inset-inline 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.inset-inline.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inset-inline.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.inset-inline.auto 📋	Firefox	9/22/2015	Safari	4/26/2021	2043
css.properties.inset-inline-end 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.inset-inline-end.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inset-inline-end.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.inset-inline-end.auto 📋	Firefox	9/22/2015	Safari	4/26/2021	2043
css.properties.inset-inline-start 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.inset-inline-start.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.inset-inline-start.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.inset-inline-start.auto 📋	Firefox	9/22/2015	Safari	4/26/2021	2043
css.properties.isolation 📋	Safari	10/16/2014	Chrome	3/3/2015	138
css.properties.isolation.auto 📋	Safari	10/16/2014	Chrome	3/3/2015	138
css.properties.isolation.isolate 📋	Safari	10/16/2014	Chrome	3/3/2015	138
css.properties.justify-content 📋	Firefox	4/2/2013	Safari	9/30/2015	911
css.properties.justify-content.flex_context 📋	Firefox	4/2/2013	Chrome	7/20/2016	1205	Chrome: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome implements the new behavior beginning with Chrome 52.Chrome Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome Android implements the new behavior beginning with Chrome Android 52.Firefox: Before Firefox 27, Firefox supported only single-line flexbox.Firefox for Android: Before Firefox for Android 27, Firefox for Android supported only single-line flexbox.Samsung Internet: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Samsung Internet implements the new behavior beginning with Samsung Internet 6.0.WebView Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. WebView Android implements the new behavior beginning with WebView Android 52.
css.properties.justify-content.flex_context.left_right	Safari	9/30/2015	Chrome	8/31/2021	2162	Internet Explorer: This value is recognized, but has no effect.Opera Android: This value is recognized, but has no effect.
css.properties.justify-content.flex_context.safe_unsafe	Firefox	10/23/2018	Safari	7/29/2024	2106	Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.justify-content.flex_context.space-evenly	Firefox	3/7/2017	Safari	9/19/2017	196
css.properties.justify-content.flex_context.start_end	Firefox	3/8/2016	Safari	3/14/2022	2197
css.properties.justify-content.flex_context.stretch	Safari	9/30/2015	Chrome	3/9/2017	526
css.properties.justify-content.grid_context 📋	Firefox	3/7/2017	Safari	3/27/2017	20
css.properties.justify-content.left	Chrome	7/31/2012	Safari	10/22/2013	448
css.properties.justify-content.normal	Chrome	7/31/2012	Safari	10/22/2013	448
css.properties.justify-content.right	Chrome	7/31/2012	Safari	10/22/2013	448
css.properties.justify-items 📋	Firefox	4/2/2013	Chrome	7/20/2016	1205
css.properties.justify-items.anchor-center 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.justify-items.center	Firefox	4/2/2013	Chrome	7/20/2016	1205
css.properties.justify-items.flex_context 📋	Firefox	4/2/2013	Chrome	7/20/2016	1205
css.properties.justify-items.grid_context 📋	Firefox	3/8/2016	Safari	3/27/2017	384
css.properties.justify-items.left	Firefox	4/2/2013	Chrome	7/20/2016	1205
css.properties.justify-items.legacy 📋	Firefox	4/2/2013	Chrome	7/20/2016	1205
css.properties.justify-items.right	Firefox	4/2/2013	Chrome	7/20/2016	1205
css.properties.justify-self 📋	Firefox	3/8/2016	Safari	3/27/2017	384
css.properties.justify-self.anchor-center 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.justify-self.auto	Firefox	3/8/2016	Safari	3/27/2017	384
css.properties.justify-self.grid_context 📋	Firefox	3/8/2016	Safari	3/27/2017	384	Internet Explorer: Internet Explorer 10 and 11 have the property `-ms-grid-column-align`, which acts in a similar way to `justify-self`.
css.properties.justify-self.left	Firefox	3/8/2016	Safari	3/27/2017	384
css.properties.justify-self.normal	Firefox	3/8/2016	Safari	3/27/2017	384
css.properties.justify-self.right	Firefox	3/8/2016	Safari	3/27/2017	384
css.properties.justify-self.stretch	Firefox	3/8/2016	Safari	3/27/2017	384
css.properties.left 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.left.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.left.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.left.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.letter-spacing 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.letter-spacing.normal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.letter-spacing.svg_elements	Chrome	12/11/2008	Firefox	1/7/2020	4044
css.properties.lighting-color 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
css.properties.lighting-color.currentColor 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
css.properties.lighting-color.transparent 📋	Firefox	6/17/2008	Safari	7/25/2012	1499
css.properties.line-break 📋	Chrome	4/19/2017	Firefox	9/3/2019	867
css.properties.line-break.anywhere 📋	Firefox	9/3/2019	Chrome	5/19/2020	259
css.properties.line-break.auto 📋	Chrome	2/21/2013	Firefox	9/3/2019	2385
css.properties.line-break.loose 📋	Chrome	2/21/2013	Firefox	9/3/2019	2385
css.properties.line-break.normal 📋	Safari	4/29/2005	Firefox	9/3/2019	5240
css.properties.line-break.strict 📋	Chrome	2/21/2013	Firefox	9/3/2019	2385
css.properties.line-clamp 📋	Safari	6/7/2010	Firefox	7/9/2019	3319	Safari: Accidental exposure.Safari on iOS: Accidental exposure.WebView on iOS: Accidental exposure.
css.properties.line-height 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.line-height.normal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style.inside 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style.outside 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-image 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 86, this property did not accept an `<image>` type, and required the URL of an image.Firefox for Android: Before Firefox for Android 86, this property did not accept an `<image>` type, and required the URL of an image.
css.properties.list-style-image.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-position 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Safari: In Safari, if a block element is the first child of a list element declared as `list-style-position: inside`, then the marker box is placed on the same line as the block element.Safari on iOS: In Safari on iOS, if a block element is the first child of a list element declared as `list-style-position: inside`, then the marker box is placed on the same line as the block element.WebView on iOS: In WebView on iOS, if a block element is the first child of a list element declared as `list-style-position: inside`, then the marker box is placed on the same line as the block element.
css.properties.list-style-position.inside 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-position.outside 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.arabic-indic 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.armenian 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.bengali 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.cambodian 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.circle 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.cjk-decimal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.cjk-earthly-branch 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.cjk-heavenly-stem 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.cjk-ideographic 📋	Firefox	11/9/2004	Safari	6/7/2010	2036	Opera: Until version 15, only decimal numbers display.Opera Android: Until version 15, only decimal numbers display.
css.properties.list-style-type.decimal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.decimal-leading-zero 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.devanagari 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.disc 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.disclosure-closed 📋	Firefox	10/14/2014	Safari	9/20/2021	2533
css.properties.list-style-type.disclosure-open 📋	Firefox	10/14/2014	Safari	9/20/2021	2533
css.properties.list-style-type.ethiopic-halehame	Firefox	11/9/2004	Safari	9/18/2023	6887
css.properties.list-style-type.ethiopic-halehame-am	Firefox	11/9/2004	Safari	9/18/2023	6887
css.properties.list-style-type.ethiopic-halehame-ti-er	Firefox	11/9/2004	Chrome	9/2/2010	2123
css.properties.list-style-type.ethiopic-halehame-ti-et	Firefox	11/9/2004	Chrome	9/2/2010	2123
css.properties.list-style-type.ethiopic-numeric 📋	Firefox	10/14/2014	Safari	9/20/2021	2533	Firefox: Before Firefox 38, Firefox added a dot as suffix of the number for `ethiopic-numeric` (for example, ፫. instead of ፫). The specification later defined the absence of a suffix, which Firefox 38 followed.Firefox for Android: Before Firefox for Android 38, Firefox for Android added a dot as suffix of the number for `ethiopic-numeric` (for example, ፫. instead of ፫). The specification later defined the absence of a suffix, which Firefox for Android 38 followed.
css.properties.list-style-type.georgian 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.gujarati 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.gurmukhi 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.hangul	Firefox	11/9/2004	Chrome	9/2/2010	2123
css.properties.list-style-type.hangul-consonant	Firefox	11/9/2004	Chrome	9/2/2010	2123
css.properties.list-style-type.hebrew 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.hiragana 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.hiragana-iroha 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.japanese-formal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.japanese-informal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.kannada 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.katakana 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.katakana-iroha 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.khmer 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.korean-hangul-formal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.korean-hanja-formal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.korean-hanja-informal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.lao 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.lower-alpha 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.lower-armenian 📋	Safari	7/20/2011	Firefox	10/14/2014	1182
css.properties.list-style-type.lower-greek 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.lower-latin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.lower-roman 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.malayalam 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.mongolian 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.myanmar 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.oriya 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.persian 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.simp-chinese-formal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.simp-chinese-informal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.square 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.string	Firefox	7/2/2015	Safari	4/26/2021	2125
css.properties.list-style-type.tamil 📋	Firefox	10/14/2014	Safari	9/20/2021	2533
css.properties.list-style-type.telugu 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.thai 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.tibetan 📋	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.list-style-type.trad-chinese-formal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.trad-chinese-informal 📋	Firefox	3/18/2014	Safari	9/20/2021	2743
css.properties.list-style-type.upper-alpha 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.upper-armenian 📋	Safari	7/20/2011	Firefox	10/14/2014	1182
css.properties.list-style-type.upper-latin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.upper-roman 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.list-style-type.urdu	Safari	6/7/2010	Firefox	10/14/2014	1590
css.properties.margin 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.margin.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin.auto	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: The `auto` value is not supported in quirks mode.Internet Explorer: The `auto` value is not supported in quirks mode.
css.properties.margin-block 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.margin-block.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-block.auto 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.margin-block-end 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-block-end.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-block-end.auto 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-block-start 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-block-start.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-block-start.auto 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-bottom 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.margin-bottom.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-bottom.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: The `auto` value is not supported in quirks mode.Internet Explorer: The `auto` value is not supported in quirks mode.
css.properties.margin-inline 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.margin-inline.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-inline.auto 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.margin-inline-end 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-inline-end.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-inline-end.auto 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-inline-start 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-inline-start.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-inline-start.auto 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.margin-left 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.margin-left.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-left.auto	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: The `auto` value is not supported in quirks mode.Internet Explorer: The `auto` value is not supported in quirks mode.
css.properties.margin-right 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.margin-right.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-right.auto	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: The `auto` value is not supported in quirks mode.Internet Explorer: The `auto` value is not supported in quirks mode.
css.properties.margin-top 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.margin-top.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.margin-top.auto	Safari	6/23/2003	Chrome	12/11/2008	1998	Edge: The `auto` value is not supported in quirks mode.Internet Explorer: The `auto` value is not supported in quirks mode.
css.properties.marker 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.marker.none 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.marker-end 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.marker-end.none 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.marker-mid 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.marker-mid.none 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.marker-start 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.marker-start.none 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.mask 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421	Chrome: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Chrome: While the property is recognized, values applied to it don't have any effect.Chrome Android: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Chrome Android: While the property is recognized, values applied to it don't have any effect.Edge: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Edge: While the property is recognized, values applied to it don't have any effect.Firefox: Only supports `mask: url(file.svg#mask_id)` or `mask: url(#mask_id)`, where the URL is a reference to an SVG `<mask>` element.Firefox for Android: Only supports `mask: url(file.svg#mask_id)` or `mask: url(#mask_id)`, where the URL is a reference to an SVG `<mask>` element.Quest Browser: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Quest Browser: While the property is recognized, values applied to it don't have any effect.Opera: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Opera: While the property is recognized, values applied to it don't have any effect.Opera Android: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Opera Android: While the property is recognized, values applied to it don't have any effect.Safari: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Safari: While the property is recognized, values applied to it don't have any effect.Safari on iOS: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Safari on iOS: While the property is recognized, values applied to it don't have any effect.Samsung Internet: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.Samsung Internet: While the property is recognized, values applied to it don't have any effect.WebView Android: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.WebView Android: While the property is recognized, values applied to it don't have any effect.WebView on iOS: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard `-webkit-mask-attachment` property.WebView on iOS: While the property is recognized, values applied to it don't have any effect.
css.properties.mask-clip 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-composite 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421	Chrome: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.Chrome Android: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.Edge: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.Opera: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.Opera Android: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.Safari: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.Safari on iOS: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.Samsung Internet: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.WebView Android: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.WebView on iOS: See also `-webkit-mask-composite` for a similar non-standard property that uses different keywords.
css.properties.mask-composite.add 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-composite.exclude 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-composite.intersect 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-composite.subtract 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-image 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421	Chrome: From version 8, Chrome added support for gradient values. Initially, Chrome supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.Chrome Android: From version 18, Chrome Android added support for gradient values. Initially, Chrome Android supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.Quest Browser: From version 5.0, Quest Browser added support for gradient values. Initially, Quest Browser supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.Safari: Initially, Safari supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.Safari on iOS: Initially, Safari on iOS supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.Samsung Internet: From version 1.0, Samsung Internet added support for gradient values. Initially, Samsung Internet supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.WebView Android: Initially, Android supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.WebView on iOS: Initially, WebView on iOS supported only `-webkit-` prefixed values for gradients (such as `-webkit-linear-gradient()`). Later, support for unprefixed values was added.
css.properties.mask-image.multiple_mask_images	Chrome	12/11/2008	Firefox	4/19/2017	3051
css.properties.mask-image.svg_masks	Safari	6/8/2009	Firefox	4/19/2017	2872
css.properties.mask-mode 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-mode.alpha 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-mode.luminance 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-mode.match-source 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-origin 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-position 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-repeat 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-size 📋	Firefox	4/19/2017	Chrome	12/5/2023	2421
css.properties.mask-type 📋	Chrome	1/10/2013	Firefox	1/13/2015	733
css.properties.mask-type.alpha 📋	Chrome	1/10/2013	Firefox	1/13/2015	733
css.properties.mask-type.luminance 📋	Chrome	1/10/2013	Firefox	1/13/2015	733
css.properties.math-shift 📋	Chrome	1/10/2023	Safari	12/12/2025	1067
css.properties.math-shift.compact 📋	Chrome	1/10/2023	Safari	12/12/2025	1067
css.properties.math-shift.normal 📋	Chrome	1/10/2023	Safari	12/12/2025	1067
css.properties.math-style 📋	Safari	4/26/2021	Firefox	8/29/2023	855
css.properties.math-style.compact 📋	Safari	4/26/2021	Firefox	8/29/2023	855
css.properties.math-style.normal 📋	Safari	4/26/2021	Firefox	8/29/2023	855
css.properties.max-block-size 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.max-block-size.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.max-block-size.fit-content	Chrome	3/9/2017	Firefox	11/2/2021	1699
css.properties.max-block-size.max-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.max-block-size.min-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.max-block-size.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.max-height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: CSS 2.1 leaves the behavior of `max-height` with `table` undefined. Firefox supports applying `max-height` to `table` elements.Opera: CSS 2.1 leaves the behavior of `max-height` with `table` undefined. Opera supports applying `max-height` to `table` elements.
css.properties.max-height.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.max-height.fit-content 📋	Chrome	10/13/2015	Firefox	11/2/2021	2212	Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.
css.properties.max-height.max-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.max-height.min-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.max-height.none 📋	Firefox	11/9/2004	Chrome	3/28/2012	2696
css.properties.max-inline-size 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.max-inline-size.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.max-inline-size.fit-content	Chrome	3/9/2017	Firefox	11/2/2021	1699
css.properties.max-inline-size.max-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.max-inline-size.min-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.max-inline-size.none 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.max-width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: CSS 2.1 leaves the behavior of `max-width` with `table` undefined. Firefox supports applying `max-width` to `table` elements.Firefox for Android: CSS 2.1 leaves the behavior of `max-width` with `table` undefined. Firefox for Android supports applying `max-width` to `table` elements.Opera: CSS 2.1 leaves the behavior of `max-width` with `table` undefined. Opera supports applying `max-width` to `table` elements.
css.properties.max-width.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.max-width.fit-content 📋	Chrome	10/13/2015	Firefox	11/2/2021	2212	Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.
css.properties.max-width.max-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.max-width.min-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.max-width.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.min-block-size 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.min-block-size.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.min-block-size.auto 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.min-block-size.fit-content	Chrome	3/9/2017	Firefox	11/2/2021	1699
css.properties.min-block-size.max-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.min-block-size.min-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.min-height 📋	Safari	4/15/2005	Chrome	12/11/2008	1336	Firefox: CSS 2.1 leaves the behavior of `min-height` with `table` undefined. Firefox supports applying `min-height` to `table` elements.Firefox for Android: CSS 2.1 leaves the behavior of `min-height` with `table` undefined. Firefox for Android supports applying `min-height` to `table` elements.Internet Explorer: In Internet Explorer 10 and 11, a `min-height` declaration on a column-direction flex container doesn't apply to the container's flex items. See Flexbug #3 for more info.Opera: CSS 2.1 leaves the behavior of `min-height` with `table` undefined. Opera supports applying `min-height` to `table` elements.
css.properties.min-height.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.min-height.auto	Chrome	7/31/2012	Firefox	12/1/2014	853	Firefox: Firefox 18 and later used `auto` as the initial value for `min-height`.Firefox for Android: Firefox for Android 18 and later used `auto` as the initial value for `min-height`.
css.properties.min-height.fit-content	Chrome	10/13/2015	Firefox	11/2/2021	2212	Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.
css.properties.min-height.max-content	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.min-height.min-content	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.min-inline-size 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.min-inline-size.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.min-inline-size.auto 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.min-inline-size.fit-content	Chrome	3/9/2017	Firefox	11/2/2021	1699
css.properties.min-inline-size.max-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.min-inline-size.min-content	Chrome	3/9/2017	Safari	3/25/2019	746
css.properties.min-width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: CSS 2.1 leaves the behavior of `min-width` with `table` undefined. Firefox supports applying `min-width` to `table` elements.Firefox for Android: CSS 2.1 leaves the behavior of `min-width` with `table` undefined. Firefox for Android supports applying `min-width` to `table` elements.Opera: CSS 2.1 leaves the behavior of `min-width` with `table` undefined. Opera supports applying `min-width` to `table` elements.
css.properties.min-width.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.min-width.auto	Chrome	7/31/2012	Firefox	12/1/2014	853	Chrome: Chrome uses `auto` as the initial value for `min-width`.Chrome Android: Chrome Android uses `auto` as the initial value for `min-width`.Edge: Edge uses `auto` as the initial value for `min-width`.Firefox: Firefox 18 and later (until the value was removed), used `auto` as the initial value for `min-width`.Firefox for Android: Firefox for Android 18 and later (until the value was removed), used `auto` as the initial value for `min-width`.Quest Browser: Quest Browser uses `auto` as the initial value for `min-width`.Opera: Opera uses `auto` as the initial value for `min-width`.Opera Android: Opera Android uses `auto` as the initial value for `min-width`.Samsung Internet: Samsung Internet uses `auto` as the initial value for `min-width`.WebView Android: WebView Android uses `auto` as the initial value for `min-width`.
css.properties.min-width.fit-content	Chrome	10/13/2015	Firefox	11/2/2021	2212	Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines `available` and not `fit-available`. Also, the definition of `fit-content` is simpler than in CSS3 Sizing.
css.properties.min-width.max-content	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.min-width.min-content	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.mix-blend-mode 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.color 📋	Firefox	9/2/2014	Safari	9/20/2016	749
css.properties.mix-blend-mode.color-burn 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.color-dodge 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.darken 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.difference 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.exclusion 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.hard-light 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.hue 📋	Firefox	9/2/2014	Safari	9/20/2016	749
css.properties.mix-blend-mode.lighten 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.luminosity 📋	Firefox	9/2/2014	Safari	9/20/2016	749
css.properties.mix-blend-mode.multiply 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.normal 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.overlay 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.plus-lighter 📋	Safari	3/21/2016	Firefox	4/5/2022	2206
css.properties.mix-blend-mode.saturation 📋	Firefox	9/2/2014	Safari	9/20/2016	749
css.properties.mix-blend-mode.screen 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.mix-blend-mode.soft-light 📋	Firefox	9/2/2014	Chrome	3/3/2015	182
css.properties.object-fit 📋	Chrome	1/14/2014	Safari	9/20/2016	980	Edge: Only supported for `<img>` elements.
css.properties.object-fit.contain 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-fit.cover 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-fit.fill 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-fit.none 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-fit.scale-down 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-position 📋	Chrome	1/14/2014	Safari	9/20/2016	980	Edge: Only supported for `<img>` elements.
css.properties.object-position.bottom 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-position.center 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-position.left 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-position.right 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.object-position.top 📋	Chrome	1/14/2014	Safari	9/20/2016	980
css.properties.offset 📋	Chrome	12/1/2016	Safari	9/12/2022	2111
css.properties.offset.auto 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.border-box 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.bottom 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.center 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.content-box 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.fill-box 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.left 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.none 📋	Chrome	9/5/2017	Safari	9/12/2022	1833
css.properties.offset.normal 📋	Chrome	8/15/2023	Firefox	1/23/2024	161
css.properties.offset.padding-box 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.right 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.stroke-box 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.top 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset.view-box 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-anchor 📋	Firefox	1/7/2020	Chrome	8/15/2023	1316
css.properties.offset-anchor.auto 📋	Firefox	1/7/2020	Chrome	8/15/2023	1316
css.properties.offset-anchor.bottom 📋	Firefox	1/7/2020	Chrome	8/15/2023	1316
css.properties.offset-anchor.center 📋	Firefox	1/7/2020	Chrome	8/15/2023	1316
css.properties.offset-anchor.left 📋	Firefox	1/7/2020	Chrome	8/15/2023	1316
css.properties.offset-anchor.right 📋	Firefox	1/7/2020	Chrome	8/15/2023	1316
css.properties.offset-anchor.top 📋	Firefox	1/7/2020	Chrome	8/15/2023	1316
css.properties.offset-distance 📋	Chrome	12/1/2016	Safari	9/12/2022	2111
css.properties.offset-path 📋	Chrome	12/1/2016	Safari	3/14/2022	1929	Samsung Internet: `path()` is the only value type supported.
css.properties.offset-path.basic_shape 📋	Chrome	8/15/2023	Safari	9/16/2024	398
css.properties.offset-path.border-box 📋	Chrome	8/15/2023	Safari	9/16/2024	398
css.properties.offset-path.content-box 📋	Chrome	8/15/2023	Safari	9/16/2024	398
css.properties.offset-path.fill-box 📋	Chrome	8/15/2023	Safari	9/16/2024	398
css.properties.offset-path.none 📋	Firefox	1/7/2020	Safari	9/16/2024	1714
css.properties.offset-path.padding-box 📋	Chrome	8/15/2023	Safari	9/16/2024	398
css.properties.offset-path.path	Chrome	1/23/2018	Safari	9/12/2022	1693
css.properties.offset-path.ray 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-path.stroke-box 📋	Chrome	8/15/2023	Safari	9/16/2024	398
css.properties.offset-path.url 📋	Chrome	8/15/2023	Firefox	1/23/2024	161
css.properties.offset-path.view-box 📋	Chrome	8/15/2023	Safari	9/16/2024	398
css.properties.offset-position 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-position.auto 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-position.bottom 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-position.center 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-position.left 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-position.normal 📋	Chrome	8/15/2023	Firefox	1/23/2024	161
css.properties.offset-position.right 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-position.top 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.properties.offset-rotate 📋	Chrome	1/25/2017	Safari	9/12/2022	2056
css.properties.offset-rotate.auto 📋	Chrome	10/13/2015	Safari	9/12/2022	2526
css.properties.offset-rotate.reverse 📋	Chrome	10/13/2015	Safari	9/12/2022	2526
css.properties.opacity 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.opacity.percentages	Chrome	10/22/2019	Safari	3/24/2020	154
css.properties.order 📋	Firefox	4/2/2013	Safari	9/30/2015	911	Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.
css.properties.outline 📋	Firefox	4/19/2021	Safari	3/27/2023	707	Chrome: Before Chrome 94, `outline` does not follow the shape of `border-radius`.Chrome Android: Before Chrome Android 94, `outline` does not follow the shape of `border-radius`.Edge: Before Edge 94, `outline` does not follow the shape of `border-radius`.Firefox: Before Firefox 88, `outline` does not follow the shape of `border-radius`.Firefox for Android: Before Firefox for Android 88, `outline` does not follow the shape of `border-radius`.Quest Browser: Before Quest Browser 18.0, `outline` does not follow the shape of `border-radius`.Opera: Before Opera 80, `outline` does not follow the shape of `border-radius`.Safari: Before Safari 16.4, `outline` does not follow the shape of `border-radius`. See bug 20807.Safari on iOS: Before Safari on iOS 16.4, `outline` does not follow the shape of `border-radius`. See bug 20807.WebView Android: Before Chrome 94, `outline` does not follow the shape of `border-radius`.WebView on iOS: Before WebView on iOS 16.4, `outline` does not follow the shape of `border-radius`. See bug 20807.
css.properties.outline.auto 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.currentColor 📋	Safari	2/2/2004	Chrome	11/12/2013	3571
css.properties.outline.dashed 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.dotted 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.double 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.groove 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.inset 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.medium 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.none 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.outset 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.ridge 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.solid 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.thick 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.thin 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline.transparent 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-color 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-color.transparent 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-offset 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Before Firefox 88, an outline does not follow the shape of `border-radius`.Firefox for Android: Before Firefox for Android 88, an outline does not follow the shape of `border-radius`.
css.properties.outline-style 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Before Firefox 88, an outline does not follow the shape of `border-radius`.Firefox for Android: Before Firefox for Android 88, an outline does not follow the shape of `border-radius`.
css.properties.outline-style.auto 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.dashed 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.dotted 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.double 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.groove 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.inset 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.none 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.outset 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.ridge 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-style.solid 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-width 📋	Safari	2/2/2004	Chrome	12/11/2008	1774	Firefox: Before Firefox 88, an outline does not follow the shape of `border-radius`.Firefox for Android: Before Firefox for Android 88, an outline does not follow the shape of `border-radius`.
css.properties.outline-width.medium 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-width.thick 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.outline-width.thin 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.overflow 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: After Firefox 3.6, the `overflow` property is correctly applied to table group elements (`<thead>`, `<tbody>`, `<tfoot>`).Internet Explorer: From version 4 to 6, Internet Explorer enlarges an element with `overflow: visible` (default value) to fit the content inside it. `height` and `width` behave like `min-height` and `min-width`, respectively.
css.properties.overflow.auto 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.overflow.clip 📋	Firefox	9/22/2020	Safari	9/12/2022	720
css.properties.overflow.hidden 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.overflow.multiple_keywords	Firefox	6/26/2018	Safari	3/24/2020	637
css.properties.overflow.scroll 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.overflow.visible 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.overflow-block 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-block.auto 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-block.clip 📋	Firefox	9/22/2020	Safari	9/15/2025	1819
css.properties.overflow-block.hidden 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-block.scroll 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-block.visible 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-inline 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-inline.auto 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-inline.clip 📋	Firefox	9/22/2020	Safari	9/15/2025	1819
css.properties.overflow-inline.hidden 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-inline.scroll 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-inline.visible 📋	Firefox	9/3/2019	Safari	9/15/2025	2204
css.properties.overflow-wrap 📋	Chrome	11/6/2012	Firefox	9/20/2016	1414
css.properties.overflow-wrap.anywhere 📋	Firefox	1/29/2019	Safari	3/14/2022	1140
css.properties.overflow-wrap.break-word 📋	Safari	6/23/2003	Firefox	6/30/2009	2199
css.properties.overflow-wrap.normal 📋	Safari	6/23/2003	Firefox	6/30/2009	2199
css.properties.overflow-x 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overflow-x.auto 📋	Safari	10/26/2007	Firefox	6/30/2009	613	Safari: Before Safari 12.1, `overlay` only had an effect on legacy scrollbars on macOS. Since Safari 12.1, it is parsed as `auto`.Safari on iOS: Before Safari on iOS 12.1, `overlay` only had an effect on legacy scrollbars on macOS. Since Safari on iOS 12.1, it is parsed as `auto`.WebView on iOS: Before WebView on iOS 12.1, `overlay` only had an effect on legacy scrollbars on macOS. Since WebView on iOS 12.1, it is parsed as `auto`.
css.properties.overflow-x.clip 📋	Firefox	9/22/2020	Safari	9/12/2022	720
css.properties.overflow-x.hidden 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overflow-x.scroll 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overflow-x.visible 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overflow-y 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overflow-y.auto 📋	Safari	10/26/2007	Firefox	6/30/2009	613	Safari: Before Safari 12.1, `overlay` only had an effect on legacy scrollbars on macOS. Since Safari 12.1, it is parsed as `auto`.Safari on iOS: Before Safari on iOS 12.1, `overlay` only had an effect on legacy scrollbars on macOS. Since Safari on iOS 12.1, it is parsed as `auto`.WebView on iOS: Before WebView on iOS 12.1, `overlay` only had an effect on legacy scrollbars on macOS. Since WebView on iOS 12.1, it is parsed as `auto`.
css.properties.overflow-y.clip 📋	Firefox	9/22/2020	Safari	9/12/2022	720
css.properties.overflow-y.hidden 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overflow-y.scroll 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overflow-y.visible 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.overscroll-behavior 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior.auto 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior.contain 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior.none 📋	Chrome	12/6/2017	Safari	9/12/2022	1741	Edge: The `none` value incorrectly behaves as `contain` (allowing for the elastic bounce effect).
css.properties.overscroll-behavior-block 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-block.auto 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-block.contain 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-block.none 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-inline 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-inline.auto 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-inline.contain 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-inline.none 📋	Chrome	9/10/2019	Safari	9/12/2022	1098
css.properties.overscroll-behavior-x 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior-x.auto 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior-x.contain 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior-x.none 📋	Chrome	12/6/2017	Safari	9/12/2022	1741	Edge: The `none` value incorrectly behaves as `contain` (allowing for the elastic bounce effect).
css.properties.overscroll-behavior-y 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior-y.auto 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior-y.contain 📋	Chrome	12/6/2017	Safari	9/12/2022	1741
css.properties.overscroll-behavior-y.none 📋	Chrome	12/6/2017	Safari	9/12/2022	1741	Edge: The `none` value incorrectly behaves as `contain` (allowing for the elastic bounce effect).
css.properties.padding 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.padding-block 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.padding-block-end 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.padding-block-start 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.padding-bottom 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.padding-inline 📋	Firefox	3/19/2019	Safari	4/26/2021	769
css.properties.padding-inline-end 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.padding-inline-start 📋	Firefox	9/22/2015	Safari	3/25/2019	1280
css.properties.padding-left 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.padding-right 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.padding-top 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.page 📋	Safari	6/23/2003	Firefox	2/14/2023	7176
css.properties.page.auto 📋	Safari	6/23/2003	Firefox	2/14/2023	7176
css.properties.page-break-after 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-after.always 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-after.auto 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-after.left 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-after.right 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-before 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-before.always 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-before.auto 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-before.left 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-before.right 📋	Safari	2/2/2004	Chrome	12/11/2008	1774
css.properties.page-break-inside 📋	Safari	4/15/2005	Firefox	2/19/2013	2867
css.properties.page-break-inside.auto 📋	Safari	4/15/2005	Firefox	2/19/2013	2867
css.properties.page-break-inside.avoid 📋	Safari	4/15/2005	Firefox	2/19/2013	2867	Firefox: Until Firefox 25, `page-break-inside: avoid` did not work with the height of a block.Firefox for Android: Until Firefox for Android 25, `page-break-inside: avoid` did not work with the height of a block.
css.properties.paint-order 📋	Safari	9/19/2017	Chrome	3/19/2024	2373	Chrome: Does not affect stroked HTML text, see bug 41372165Chrome Android: Does not affect stroked HTML text, see bug 41372165Edge: Does not affect stroked HTML text, see bug 41372165Quest Browser: Does not affect stroked HTML text, see bug 41372165Opera: Does not affect stroked HTML text, see bug 41372165Opera Android: Does not affect stroked HTML text, see bug 41372165Safari: Does not affect stroked HTML text, see bug 168601Safari on iOS: Does not affect stroked HTML text, see bug 168601Samsung Internet: Does not affect stroked HTML text, see bug 41372165WebView Android: Does not affect stroked HTML text, see bug 41372165WebView on iOS: Does not affect stroked HTML text, see bug 168601
css.properties.paint-order.fill 📋	Chrome	5/20/2014	Firefox	5/9/2018	1450
css.properties.paint-order.markers 📋	Chrome	5/20/2014	Firefox	5/9/2018	1450
css.properties.paint-order.normal 📋	Chrome	5/20/2014	Firefox	5/9/2018	1450
css.properties.paint-order.stroke 📋	Chrome	5/20/2014	Firefox	5/9/2018	1450
css.properties.perspective 📋	Firefox	10/9/2012	Safari	9/30/2015	1086	Firefox: From version 147, Firefox supports `-webkit-perspective` with unitless values for increased compatibility.Firefox for Android: From version 147, Firefox for Android supports `-webkit-perspective` with unitless values for increased compatibility.Safari on iOS: In iOS 13, the `perspective` property did not function properly. The issues were fixed in iOS 14.WebView on iOS: In iOS 13, the `perspective` property did not function properly. The issues were fixed in iOS 14.
css.properties.perspective.none 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.perspective-origin 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.perspective-origin.bottom 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.perspective-origin.center 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.perspective-origin.left 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.perspective-origin.right 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.perspective-origin.top 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.place-content 📋	Safari	9/30/2015	Chrome	6/5/2017	614
css.properties.place-content.flex_context	Safari	9/30/2015	Chrome	6/5/2017	614	Firefox: Starting with version 60, you can only specify a single value if it is valid for both `align-content` and `justify-content`.Firefox for Android: Starting with version 60, you can only specify a single value if it is valid for both `align-content` and `justify-content`.
css.properties.place-content.grid_context	Firefox	4/19/2017	Safari	9/19/2017	153	Firefox: Starting with version 60, you can only specify a single value if it is valid for both `align-content` and `justify-content`.Firefox for Android: Starting with version 60, you can only specify a single value if it is valid for both `align-content` and `justify-content`.
css.properties.place-items 📋	Firefox	3/8/2016	Safari	9/19/2017	560
css.properties.place-items.anchor-center 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.place-items.flex_context	Firefox	3/8/2016	Safari	9/19/2017	560
css.properties.place-items.grid_context	Firefox	3/8/2016	Safari	9/19/2017	560
css.properties.place-self 📋	Firefox	3/8/2016	Safari	9/19/2017	560
css.properties.place-self.anchor-center 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.place-self.flex_context	Firefox	3/8/2016	Safari	9/19/2017	560
css.properties.place-self.grid_context	Firefox	3/8/2016	Safari	9/19/2017	560
css.properties.pointer-events 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.all 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.auto 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.fill 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.html_elements	Chrome	5/21/2009	Firefox	1/21/2010	245
css.properties.pointer-events.none 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.painted 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.stroke 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.visible 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.pointer-events.visibleFill 📋	Safari	6/8/2009	Firefox	11/15/2016	2717
css.properties.pointer-events.visiblePainted 📋	Safari	6/8/2009	Firefox	11/15/2016	2717
css.properties.pointer-events.visibleStroke 📋	Safari	6/8/2009	Firefox	11/15/2016	2717
css.properties.position 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.position.absolute 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 57, absolute positioning did not work correctly when applied to elements inside tables that have `border-collapse` applied to them (bug 1379306).Firefox: Before Firefox 30, absolute positioning of table rows and row groups was not supported (bug 63895).Firefox for Android: Before Firefox for Android 57, absolute positioning did not work correctly when applied to elements inside tables that have `border-collapse` applied to them (bug 1379306).Firefox for Android: Before Firefox for Android 30, absolute positioning of table rows and row groups was not supported (bug 63895).
css.properties.position.absolutely_positioned_flex_children	Chrome	7/20/2016	Safari	9/19/2017	426
css.properties.position.fixed 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 44, `position: fixed` didn't create a stacking context in most cases. Firefox and the specification have been modified to mimic Chrome and Safari's long-time behavior.Firefox for Android: Before Firefox for Android 44, `position: fixed` didn't create a stacking context in most cases. Firefox for Android and the specification have been modified to mimic Chrome and Safari's long-time behavior.Internet Explorer: In Internet Explorer, fixed positioning doesn't work if the document is in quirks mode.
css.properties.position.position_sticky_table_elements	Safari	10/16/2014	Firefox	3/13/2018	1244	Firefox: Borders do not display on table headers if `border-collapse` is set to `collapse` (bug 1727594).Firefox for Android: Borders do not display on table headers if `border-collapse` is set to `collapse` (bug 1727594).
css.properties.position.relative 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.position.static 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.position.sticky 📋	Firefox	9/2/2014	Safari	9/19/2019	1843
css.properties.position-anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-anchor.auto 📋	Chrome	5/14/2024	Firefox	1/13/2026	609	Chrome: The generic `auto` value exists, but it does not yet have the effect described in the spec.Chrome Android: The generic `auto` value exists, but it does not yet have the effect described in the spec.Edge: The generic `auto` value exists, but it does not yet have the effect described in the spec.Opera: The generic `auto` value exists, but it does not yet have the effect described in the spec.Opera Android: The generic `auto` value exists, but it does not yet have the effect described in the spec.Samsung Internet: The generic `auto` value exists, but it does not yet have the effect described in the spec.WebView Android: The generic `auto` value exists, but it does not yet have the effect described in the spec.
css.properties.position-area 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.block-end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.block-start 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.bottom 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `bottom` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.center 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.inline-end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.inline-start 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.left 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `left` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.none 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.right 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `right` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-block-end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-block-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-block-start 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-block-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-inline-end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-inline-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-inline-start 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-inline-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-start 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-x-end 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-x-start 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-y-end 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.self-y-start 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.span-all 📋	Safari	9/15/2025	Firefox	1/13/2026	120	Chrome: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: Using `span-all` unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.span-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-bottom 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-left 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-right 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-self-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-self-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-self-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-self-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-self-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-self-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-self-x-end 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-area.span-self-x-start 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-area.span-self-y-end 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-area.span-self-y-start 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-area.span-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-top 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-x-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-x-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-y-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.span-y-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-area.top 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `top` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.x-end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.x-start 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.y-end 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-area.y-start 📋	Safari	9/15/2025	Firefox	2/24/2026	162	Chrome: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-try.block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.bottom 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.center 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.flip-block 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-try.flip-inline 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-try.flip-start 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-try.flip-x 📋	Safari	12/12/2025	Firefox	1/13/2026	32
css.properties.position-try.flip-y 📋	Safari	12/12/2025	Firefox	1/13/2026	32
css.properties.position-try.inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.left 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.none 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-try.right 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.self-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.self-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.self-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.self-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.self-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.self-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.self-x-end 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try.self-x-start 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try.self-y-end 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try.self-y-start 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try.span-all 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-bottom 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-left 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-right 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-self-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-self-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-self-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-self-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-self-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-self-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-self-x-end 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try.span-self-x-start 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try.span-self-y-end 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try.span-self-y-start 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try.span-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-top 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-x-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-x-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-y-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.span-y-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.top 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.x-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.x-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.y-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try.y-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks 📋	Chrome	8/20/2024	Firefox	1/13/2026	511
css.properties.position-try-fallbacks.block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.bottom 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.center 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.flip-block 📋	Chrome	8/20/2024	Firefox	1/13/2026	511
css.properties.position-try-fallbacks.flip-inline 📋	Chrome	8/20/2024	Firefox	1/13/2026	511
css.properties.position-try-fallbacks.flip-start 📋	Chrome	8/20/2024	Firefox	1/13/2026	511
css.properties.position-try-fallbacks.flip-x 📋	Safari	12/12/2025	Firefox	1/13/2026	32
css.properties.position-try-fallbacks.flip-y 📋	Safari	12/12/2025	Firefox	1/13/2026	32
css.properties.position-try-fallbacks.inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.left 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.none 📋	Chrome	8/20/2024	Firefox	1/13/2026	511
css.properties.position-try-fallbacks.position-area 📋	Chrome	8/20/2024	Firefox	1/13/2026	511	Chrome: `inset-area` values had to be wrapped inside an `inset-area()` function.Chrome Android: `inset-area` values had to be wrapped inside an `inset-area()` function.Edge: `inset-area` values had to be wrapped inside an `inset-area()` function.Opera: `inset-area` values had to be wrapped inside an `inset-area()` function.Opera Android: `inset-area` values had to be wrapped inside an `inset-area()` function.Samsung Internet: `inset-area` values had to be wrapped inside an `inset-area()` function.WebView Android: `inset-area` values had to be wrapped inside an `inset-area()` function.
css.properties.position-try-fallbacks.right 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.self-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.self-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.self-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.self-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.self-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.self-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.self-x-end 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-x-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try-fallbacks.self-x-start 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-x-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `x-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try-fallbacks.self-y-end 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-y-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-self-end` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try-fallbacks.self-y-start 📋	Safari	12/12/2025	Firefox	2/24/2026	74	Chrome: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Chrome Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Edge: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Firefox: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Firefox for Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 2008537.Opera: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Opera Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.Samsung Internet: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `self-y-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.WebView Android: When `y-self-start` is used as a single keyword, or alongside `span-all`, it unexpectedly allows the anchored box to overflow the viewport, obscuring content. Use `place-self: anchor-center` as a workaround. See bug 438334710.
css.properties.position-try-fallbacks.span-all 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-bottom 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-left 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-right 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-self-block-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-self-block-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-self-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-self-inline-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-self-inline-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-self-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-self-x-end 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try-fallbacks.span-self-x-start 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try-fallbacks.span-self-y-end 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try-fallbacks.span-self-y-start 📋	Chrome	12/2/2025	Firefox	1/13/2026	42
css.properties.position-try-fallbacks.span-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-top 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-x-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-x-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-y-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.span-y-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.top 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.x-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.x-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.y-end 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-fallbacks.y-start 📋	Chrome	9/17/2024	Firefox	1/13/2026	483
css.properties.position-try-order 📋	Chrome	5/14/2024	Firefox	2/24/2026	651
css.properties.position-try-order.most-block-size 📋	Chrome	5/14/2024	Firefox	2/24/2026	651
css.properties.position-try-order.most-height 📋	Chrome	5/14/2024	Firefox	2/24/2026	651
css.properties.position-try-order.most-inline-size 📋	Chrome	5/14/2024	Firefox	2/24/2026	651
css.properties.position-try-order.most-width 📋	Chrome	5/14/2024	Firefox	2/24/2026	651
css.properties.position-try-order.normal 📋	Chrome	5/14/2024	Firefox	2/24/2026	651
css.properties.position-visibility 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-visibility.always 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-visibility.anchors-visible 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.position-visibility.no-overflow 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.print-color-adjust 📋	Firefox	2/8/2022	Chrome	4/29/2025	1176	Chrome: Chrome does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Chrome: Before version 26, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Chrome Android: Chrome Android does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Chrome Android: Before version 26, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Edge: Edge does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Edge: Before version 79, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Quest Browser: Quest Browser does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Quest Browser: Before version 5.0, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Opera: Opera does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Opera: Before version 15, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Opera Android: Opera Android does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Opera Android: Before version 14, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Safari: Safari does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Safari on iOS: Safari on iOS does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Samsung Internet: Samsung Internet does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.Samsung Internet: Before version 1.5, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.WebView Android: WebView Android does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.WebView Android: Before version 4.4, if background images are clipped (for example, when using `background-image` sprites) and `-webkit-print-color-adjust` is set to `exact`, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.WebView on iOS: WebView on iOS does not print backgrounds of the `<body>` element. If this property is set to `exact` for the `<body>` element, it will apply only to its descendants.
css.properties.print-color-adjust.economy 📋	Safari	7/25/2012	Chrome	4/29/2025	4661
css.properties.print-color-adjust.exact 📋	Safari	7/25/2012	Chrome	4/29/2025	4661
css.properties.quotes 📋	Firefox	11/29/2005	Safari	9/30/2015	3592
css.properties.quotes.auto 📋	Firefox	10/22/2019	Safari	4/26/2021	552	Internet Explorer: This value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language setting
css.properties.quotes.none 📋	Firefox	11/29/2005	Safari	9/30/2015	3592
css.properties.r 📋	Chrome	5/19/2015	Firefox	9/3/2019	1568
css.properties.resize 📋	Safari	10/26/2007	Firefox	3/22/2011	1243	Firefox for Android: The property is recognized, but has no effect. See bug 1776834.Safari on iOS: The property is recognized, but has no effect. See bug 211994.WebView on iOS: The property is recognized, but has no effect. See bug 211994.
css.properties.resize.block	Firefox	10/23/2018	Chrome	10/10/2023	1813
css.properties.resize.block_level_support	Safari	6/8/2009	Firefox	6/21/2011	743	Firefox: `resize` doesn't have any effect on `<iframe>`. See bug 680823)
css.properties.resize.both 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.resize.horizontal 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.resize.inline	Firefox	10/23/2018	Chrome	10/10/2023	1813
css.properties.resize.none 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.resize.vertical 📋	Safari	10/26/2007	Firefox	3/22/2011	1243
css.properties.right 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.right.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.right.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.right.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.rotate 📋	Firefox	1/7/2020	Chrome	8/2/2022	938
css.properties.rotate.none 📋	Firefox	1/7/2020	Chrome	8/2/2022	938
css.properties.rotate.x_y_z_angle	Firefox	1/7/2020	Chrome	8/2/2022	938
css.properties.row-gap 📋	Chrome	12/1/2015	Safari	3/27/2017	482
css.properties.row-gap.flex_context 📋	Firefox	10/23/2018	Safari	4/26/2021	916
css.properties.row-gap.grid_context 📋	Chrome	4/17/2018	Safari	9/17/2018	153
css.properties.row-gap.normal 📋	Chrome	12/1/2015	Safari	3/27/2017	482
css.properties.ruby-align 📋	Firefox	5/12/2015	Safari	12/11/2024	3501	Internet Explorer: Internet Explorer 9 and later supports an earlier draft of CSS Ruby with non-standard values for this property: `auto`, `left`, `center`, `right`, `distribute-letter`, `distribute-space`, and `line-edge`.
css.properties.ruby-align.center 📋	Firefox	5/12/2015	Safari	12/11/2024	3501
css.properties.ruby-align.space-around 📋	Firefox	5/12/2015	Safari	12/11/2024	3501
css.properties.ruby-align.space-between 📋	Firefox	5/12/2015	Safari	12/11/2024	3501
css.properties.ruby-align.start 📋	Firefox	5/12/2015	Safari	12/11/2024	3501
css.properties.ruby-position 📋	Firefox	5/12/2015	Safari	12/11/2024	3501	Chrome: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).Chrome Android: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).Edge: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).Internet Explorer: Internet Explorer 9 and later support an old draft values: `inline` (equivalent of having `display: inline` on the ruby), and `above` (synonym of the modern `over`).Quest Browser: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).Opera: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).Opera Android: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).Safari: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).Safari on iOS: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).WebView Android: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).WebView on iOS: Implemented as a non-standard, prefixed, version of `ruby-position`, `-webkit-ruby-position`: it has two properties: `before` and `after` (both equivalent, for ltr and rtl scripts to the standard `over` value used with `ruby-align: start`).
css.properties.ruby-position.over	Firefox	5/12/2015	Safari	12/11/2024	3501
css.properties.ruby-position.under	Firefox	5/12/2015	Safari	12/11/2024	3501
css.properties.rx 📋	Chrome	5/19/2015	Safari	3/5/2024	3213	Safari: Before Safari 17.4, the value was recognized, but had no effect, and was only recognized as an attribute applied to the SVG element. See bug 266090.Safari on iOS: Before Safari on iOS 17.4, the value was recognized, but had no effect, and was only recognized as an attribute applied to the SVG element. See bug 266090.WebView on iOS: Before WebView on iOS 17.4, the value was recognized, but had no effect, and was only recognized as an attribute applied to the SVG element. See bug 266090.
css.properties.rx.auto 📋	Chrome	8/31/2016	Safari	3/5/2024	2743
css.properties.ry 📋	Chrome	5/19/2015	Safari	3/5/2024	3213	Safari: Before Safari 17.4, the value was recognized, but had no effect, and was only recognized as an attribute applied to the SVG element. See bug 266090.Safari on iOS: Before Safari on iOS 17.4, the value was recognized, but had no effect, and was only recognized as an attribute applied to the SVG element. See bug 266090.WebView on iOS: Before WebView on iOS 17.4, the value was recognized, but had no effect, and was only recognized as an attribute applied to the SVG element. See bug 266090.
css.properties.ry.auto 📋	Chrome	8/31/2016	Safari	3/5/2024	2743
css.properties.scale 📋	Firefox	1/7/2020	Chrome	8/2/2022	938
css.properties.scale.none 📋	Firefox	1/7/2020	Chrome	8/2/2022	938
css.properties.scroll-behavior 📋	Firefox	2/24/2015	Safari	3/14/2022	2575
css.properties.scroll-behavior.auto 📋	Firefox	2/24/2015	Safari	3/14/2022	2575
css.properties.scroll-behavior.smooth 📋	Firefox	2/24/2015	Safari	3/14/2022	2575
css.properties.scroll-margin 📋	Chrome	9/4/2018	Firefox	7/13/2021	1043	Firefox: The `scroll-margin` property can cause an element's visibility to be incorrectly calculated for `element.focus()`. See bug 1708303.Firefox for Android: The `scroll-margin` property can cause an element's visibility to be incorrectly calculated for `element.focus()`. See bug 1708303.Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.
css.properties.scroll-margin-block 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-margin-block-end 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-margin-block-start 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-margin-bottom 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.
css.properties.scroll-margin-inline 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-margin-inline-end 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-margin-inline-start 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-margin-left 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.
css.properties.scroll-margin-right 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.
css.properties.scroll-margin-top 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 189265.
css.properties.scroll-padding 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.
css.properties.scroll-padding.auto 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-padding-block 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-block.auto 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-block-end 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-block-end.auto 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-block-start 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-block-start.auto 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-bottom 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.
css.properties.scroll-padding-bottom.auto 📋	Firefox	7/9/2019	Safari	9/20/2021	804
css.properties.scroll-padding-inline 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-inline.auto 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-inline-end 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-inline-end.auto 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-inline-start 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-inline-start.auto 📋	Chrome	9/4/2018	Safari	9/20/2021	1112
css.properties.scroll-padding-left 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.
css.properties.scroll-padding-left.auto 📋	Firefox	7/9/2019	Safari	9/20/2021	804
css.properties.scroll-padding-right 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.
css.properties.scroll-padding-right.auto 📋	Firefox	7/9/2019	Safari	9/20/2021	804
css.properties.scroll-padding-top 📋	Chrome	9/4/2018	Safari	4/26/2021	965	Safari: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or `scrollIntoView()`, see bug 179379.
css.properties.scroll-padding-top.auto 📋	Firefox	7/9/2019	Safari	9/20/2021	804
css.properties.scroll-snap-align 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-align.center 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-align.end 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-align.none 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-align.start 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-stop 📋	Chrome	6/4/2019	Firefox	7/26/2022	1148
css.properties.scroll-snap-stop.always 📋	Chrome	6/4/2019	Firefox	7/26/2022	1148
css.properties.scroll-snap-stop.normal 📋	Chrome	6/4/2019	Firefox	7/26/2022	1148
css.properties.scroll-snap-type 📋	Safari	9/19/2017	Firefox	4/5/2022	1659	Edge: Edge supports an earlier draft of CSS Scroll Snap without axis values.Firefox: On macOS Monterey, scroll snapping does not complete reliably. See bug 1749352.Firefox: An earlier draft of CSS Scroll Snap without axis values.Firefox for Android: An earlier draft of CSS Scroll Snap without axis values.Internet Explorer: Internet Explorer supports an earlier draft of CSS Scroll Snap without axis values.Safari: Older Safari versions support an earlier draft of CSS Scroll Snap without axis values.Safari on iOS: Older Safari on iOS versions support an earlier draft of CSS Scroll Snap without axis values.WebView on iOS: Older WebView on iOS versions support an earlier draft of CSS Scroll Snap without axis values.
css.properties.scroll-snap-type.block 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-type.both 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-type.inline 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-type.none 📋	Firefox	7/2/2015	Chrome	9/4/2018	1160
css.properties.scroll-snap-type.x 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-snap-type.y 📋	Safari	9/19/2017	Firefox	7/9/2019	658
css.properties.scroll-timeline 📋	Firefox	3/14/2023	Safari	9/15/2025	916	Firefox: The syntax of the shorthand property uses the fixed order of name and then the axis.Firefox: Supports the deprecated `horizontal` and `vertical` axis values, and not the `x` and `y` values.Firefox: The `@scroll-timeline` at-rule is replaced with the longhand properties `scroll-timeline-name` and `scroll-timeline-axis` and the shorthand property `scroll-timeline`.
css.properties.scroll-timeline-axis 📋	Firefox	3/14/2023	Safari	9/15/2025	916	Firefox: The syntax of the shorthand property uses the fixed order of name and then the axis.Firefox: Supports the deprecated `horizontal` and `vertical` values, and not the `x` and `y` values.Firefox: The `@scroll-timeline` at-rule is replaced with the longhand properties `scroll-timeline-name` and `scroll-timeline-axis` and the shorthand property `scroll-timeline`.
css.properties.scroll-timeline-name 📋	Firefox	3/14/2023	Safari	9/15/2025	916	Firefox: The syntax of the shorthand property uses the fixed order of name and then the axis.Firefox: The `@scroll-timeline` at-rule is replaced with the longhand properties `scroll-timeline-name` and `scroll-timeline-axis` and the shorthand property `scroll-timeline`.
css.properties.scrollbar-color 📋	Firefox	12/11/2018	Safari	12/12/2025	2558
css.properties.scrollbar-color.auto 📋	Firefox	12/11/2018	Safari	12/12/2025	2558
css.properties.scrollbar-gutter 📋	Chrome	9/21/2021	Safari	12/11/2024	1177
css.properties.scrollbar-gutter.auto 📋	Chrome	9/21/2021	Safari	12/11/2024	1177
css.properties.scrollbar-gutter.stable 📋	Chrome	9/21/2021	Safari	12/11/2024	1177
css.properties.scrollbar-width 📋	Firefox	12/11/2018	Safari	12/11/2024	2192
css.properties.scrollbar-width.auto 📋	Firefox	12/11/2018	Safari	12/11/2024	2192
css.properties.scrollbar-width.none 📋	Firefox	12/11/2018	Safari	12/11/2024	2192
css.properties.scrollbar-width.thin 📋	Firefox	12/11/2018	Safari	12/11/2024	2192
css.properties.shape-image-threshold 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-margin 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.border-box 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.circle	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.content-box 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.gradient 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.image 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.inset	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.margin-box 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.none 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.padding-box 📋	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-outside.polygon	Chrome	8/26/2014	Firefox	9/5/2018	1471
css.properties.shape-rendering 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.shape-rendering.auto 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.shape-rendering.crispEdges 📋	Safari	6/8/2009	Firefox	11/15/2016	2717
css.properties.shape-rendering.geometricPrecision 📋	Safari	6/8/2009	Firefox	11/15/2016	2717
css.properties.shape-rendering.optimizeSpeed 📋	Safari	6/8/2009	Firefox	11/15/2016	2717
css.properties.stop-color 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.stop-opacity 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.stroke 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke.none 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-dasharray 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-dasharray.none 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-dashoffset 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linecap 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linecap.butt 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linecap.round 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linecap.square 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linejoin 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linejoin.bevel 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linejoin.miter 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-linejoin.round 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-miterlimit 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-opacity 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.stroke-width 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.properties.tab-size 📋	Chrome	7/31/2012	Firefox	8/10/2021	3297	Chrome: This property is not yet animatable.Chrome Android: This property is not yet animatable.Edge: This property is not yet animatable.Firefox: Before Firefox 53, this property was not animatable.Firefox for Android: Before Firefox for Android 53, this property was not animatable.Quest Browser: This property is not yet animatable.Samsung Internet: This property is not yet animatable.
css.properties.tab-size.length 📋	Chrome	4/14/2015	Safari	3/24/2020	1806
css.properties.table-layout 📋	Safari	6/23/2003	Chrome	9/16/2011	3007
css.properties.table-layout.auto 📋	Safari	6/23/2003	Chrome	9/16/2011	3007
css.properties.table-layout.fixed 📋	Safari	6/23/2003	Chrome	9/16/2011	3007
css.properties.text-align 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-align.center 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.text-align.end 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.text-align.justify 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-align.left 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.text-align.match-parent 📋	Chrome	12/13/2011	Safari	3/14/2022	3744
css.properties.text-align.right 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
css.properties.text-align.start 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.text-align-last 📋	Chrome	12/1/2015	Safari	9/12/2022	2477	Internet Explorer: IE only supports `text-align-last` when `text-align` is set to `justify`.Internet Explorer: The `start` and `end` values are not supported.
css.properties.text-align-last.auto 📋	Firefox	4/24/2012	Safari	9/12/2022	3793
css.properties.text-align-last.center 📋	Firefox	4/24/2012	Safari	9/12/2022	3793
css.properties.text-align-last.end 📋	Firefox	4/24/2012	Safari	9/12/2022	3793
css.properties.text-align-last.justify 📋	Firefox	4/24/2012	Safari	9/12/2022	3793
css.properties.text-align-last.left 📋	Firefox	4/24/2012	Safari	9/12/2022	3793
css.properties.text-align-last.right 📋	Firefox	4/24/2012	Safari	9/12/2022	3793
css.properties.text-align-last.start 📋	Firefox	4/24/2012	Safari	9/12/2022	3793
css.properties.text-anchor 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.text-anchor.end 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.text-anchor.middle 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.text-anchor.start 📋	Firefox	6/17/2008	Safari	6/8/2009	356
css.properties.text-autospace 📋	Safari	3/31/2025	Firefox	11/11/2025	225
css.properties.text-autospace.no-autospace 📋	Safari	3/31/2025	Firefox	11/11/2025	225
css.properties.text-autospace.normal 📋	Safari	3/31/2025	Firefox	11/11/2025	225
css.properties.text-combine-upright 📋	Chrome	1/20/2016	Safari	3/14/2022	2245	Chrome: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.Chrome Android: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.Firefox: Before version 81, Firefox implemented the property as animatable. This was corrected to spec in 81.Firefox for Android: Before version 81, Firefox for Android implemented the property as animatable. This was corrected to spec in 81.Quest Browser: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.Opera: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.Opera Android: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.Safari: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.Safari on iOS: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.Samsung Internet: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.WebView Android: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.WebView on iOS: This property was initially named `-webkit-text-combine` according to a 2011 version of the CSS3 Writing Modes specification, supporting the values `none` and `horizontal` without `digits`.
css.properties.text-combine-upright.all 📋	Chrome	1/20/2016	Safari	3/14/2022	2245
css.properties.text-combine-upright.none 📋	Chrome	1/20/2016	Safari	3/14/2022	2245
css.properties.text-decoration 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-decoration.auto 📋	Firefox	10/22/2019	Safari	12/12/2025	2243
css.properties.text-decoration.blink 📋	Safari	6/23/2003	Chrome	11/12/2013	3795	Chrome: The `blink` value does not have any effect.Chrome Android: The `blink` value does not have any effect.Firefox: The `blink` value does not have any effect.Firefox for Android: The `blink` value does not have any effect.Quest Browser: The `blink` value does not have any effect.Opera: The `blink` value does not have any effect.Opera Android: The `blink` value does not have any effect.Safari: The `blink` value does not have any effect.Safari on iOS: The `blink` value does not have any effect.Samsung Internet: The `blink` value does not have any effect.WebView Android: The `blink` value does not have any effect.WebView on iOS: The `blink` value does not have any effect.
css.properties.text-decoration.currentColor 📋	Firefox	11/15/2016	Safari	12/12/2025	3314
css.properties.text-decoration.dashed 📋	Firefox	11/15/2016	Safari	12/12/2025	3314
css.properties.text-decoration.dotted 📋	Firefox	11/15/2016	Safari	12/12/2025	3314
css.properties.text-decoration.double 📋	Firefox	11/15/2016	Safari	12/12/2025	3314
css.properties.text-decoration.from-font 📋	Firefox	10/22/2019	Safari	12/12/2025	2243
css.properties.text-decoration.grammar-error 📋	Chrome	1/23/2024	Safari	12/12/2025	689
css.properties.text-decoration.includes_color-and-style	Firefox	8/16/2011	Safari	12/12/2025	5232
css.properties.text-decoration.includes_thickness	Firefox	10/22/2019	Safari	12/12/2025	2243
css.properties.text-decoration.line-through 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-decoration.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-decoration.overline 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-decoration.solid 📋	Firefox	11/15/2016	Safari	12/12/2025	3314
css.properties.text-decoration.spelling-error 📋	Chrome	1/23/2024	Safari	12/12/2025	689
css.properties.text-decoration.transparent 📋	Firefox	11/15/2016	Safari	12/12/2025	3314
css.properties.text-decoration.underline 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-decoration.wavy 📋	Firefox	11/15/2016	Safari	12/12/2025	3314
css.properties.text-decoration-color 📋	Firefox	2/24/2015	Safari	3/25/2019	1490
css.properties.text-decoration-color.currentColor 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-color.transparent 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-line 📋	Firefox	2/24/2015	Safari	3/25/2019	1490
css.properties.text-decoration-line.blink 📋	Firefox	12/10/2013	Chrome	3/9/2017	1185	Chrome: The `blink` value does not have any effect.Chrome Android: The `blink` value does not have any effect.Edge: The `blink` value does not have any effect.Firefox: The `blink` value does not have any effect.Firefox for Android: The `blink` value does not have any effect.Quest Browser: The `blink` value does not have any effect.Samsung Internet: The `blink` value does not have any effect.WebView Android: The `blink` value does not have any effect.
css.properties.text-decoration-line.grammar-error 📋	Chrome	1/23/2024	Safari	12/12/2025	689
css.properties.text-decoration-line.line-through 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-line.none 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-line.overline 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-line.spelling-error 📋	Chrome	1/23/2024	Safari	12/12/2025	689
css.properties.text-decoration-line.underline 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-skip-ink 📋	Chrome	1/23/2018	Safari	3/14/2022	1511
css.properties.text-decoration-skip-ink.auto 📋	Chrome	1/23/2018	Safari	3/14/2022	1511
css.properties.text-decoration-skip-ink.none 📋	Chrome	1/23/2018	Safari	3/14/2022	1511
css.properties.text-decoration-style 📋	Firefox	2/24/2015	Safari	3/25/2019	1490
css.properties.text-decoration-style.dashed 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-style.dotted 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-style.double 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-style.solid 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-style.wavy 📋	Firefox	8/16/2011	Chrome	3/9/2017	2032
css.properties.text-decoration-thickness 📋	Safari	3/25/2019	Chrome	3/2/2021	708	Chrome: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.Chrome Android: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.Edge: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.Quest Browser: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.Opera: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.Opera Android: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.Samsung Internet: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.WebView Android: The `text-decoration-thickness` property has no effect unless `text-underline-offset`, `text-decoration-color`, or `text-decoration-style` are set to a non-initial value. See bug 40734940.
css.properties.text-decoration-thickness.auto 📋	Safari	3/25/2019	Chrome	11/17/2020	603
css.properties.text-decoration-thickness.from-font 📋	Safari	3/25/2019	Chrome	11/17/2020	603
css.properties.text-decoration-thickness.percentage	Firefox	3/10/2020	Safari	3/5/2024	1456
css.properties.text-emphasis 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis.circle 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.currentColor 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.dot 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.double-circle 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.filled 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.none 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.open 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.sesame 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.transparent 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis.triangle 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis-color 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-color.currentColor 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis-color.transparent 📋	Chrome	2/21/2013	Firefox	4/26/2016	1160
css.properties.text-emphasis-position 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-position.left	Safari	10/16/2014	Chrome	10/17/2017	1097
css.properties.text-emphasis-position.over	Safari	10/22/2013	Firefox	12/13/2022	3339
css.properties.text-emphasis-position.right	Safari	10/16/2014	Chrome	10/17/2017	1097
css.properties.text-emphasis-position.under	Safari	10/22/2013	Firefox	12/13/2022	3339
css.properties.text-emphasis-style 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.circle 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.dot 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.double-circle 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.filled 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.none 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.open 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.sesame 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-emphasis-style.triangle 📋	Safari	10/22/2013	Chrome	3/1/2022	3052
css.properties.text-indent 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-indent.each-line 📋	Safari	9/20/2021	Chrome	3/10/2026	1632
css.properties.text-indent.hanging 📋	Safari	9/20/2021	Chrome	3/10/2026	1632
css.properties.text-orientation 📋	Firefox	9/22/2015	Safari	9/16/2020	1821
css.properties.text-orientation.mixed 📋	Firefox	9/22/2015	Safari	3/24/2020	1645
css.properties.text-orientation.sideways 📋	Chrome	6/7/2011	Firefox	1/26/2016	1694
css.properties.text-orientation.upright 📋	Chrome	6/7/2011	Safari	3/24/2020	3213
css.properties.text-overflow 📋	Safari	4/15/2005	Firefox	9/27/2011	2356	Firefox: Until Firefox 10, handling of `text-overflow` on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as `text-overflow: ellipsis;`), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction.Firefox for Android: Until Firefox for Android 10, handling of `text-overflow` on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox for Android 10, if only one value was specified (such as `text-overflow: ellipsis;`), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction.
css.properties.text-overflow.clip 📋	Safari	4/15/2005	Firefox	9/27/2011	2356
css.properties.text-overflow.ellipsis 📋	Safari	4/15/2005	Firefox	9/27/2011	2356
css.properties.text-rendering 📋	Firefox	11/9/2004	Safari	6/7/2010	2036	Chrome: This property is only supported on Windows and Linux.Chrome: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Chrome Android: This property is only supported on Windows and Linux.Chrome Android: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Edge: This property is only supported on Windows and Linux.Edge: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Firefox: This property is only supported on Windows and Linux.Firefox: The `optimizeSpeed` option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See bug 595688 for details.Quest Browser: This property is only supported on Windows and Linux.Quest Browser: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Samsung Internet: This property is only supported on Windows and Linux. Samsung Internet is not on Windows or Linux.WebView Android: From version 3 to 4.3, there is a serious bug where `text-rendering: optimizeLegibility` causes custom web fonts to not render. This was fixed in version 4.4.
css.properties.text-rendering.auto	Firefox	11/9/2004	Safari	6/7/2010	2036	Chrome: Chrome treats `auto` as `optimizeSpeed`.Chrome Android: Chrome Android treats `auto` as `optimizeSpeed`.Edge: Edge treats `auto` as `optimizeSpeed`.Firefox: If the font size is 20 pixels or higher, Firefox treats `auto` as `optimizeLegibility`. For smaller text, Firefox treats `auto` as `optimizeSpeed`. The 20-pixel threshold can be changed with the `browser.display.auto_quality_min_font_size` preference.Firefox for Android: If the font size is 20 pixels or higher, Firefox treats `auto` as `optimizeLegibility`. For smaller text, Firefox treats `auto` as `optimizeSpeed`. The 20-pixel threshold can be changed with the `browser.display.auto_quality_min_font_size` preference.Quest Browser: Quest Browser treats `auto` as `optimizeSpeed`.Opera: Opera treats `auto` as `optimizeSpeed`.Opera Android: Opera Android treats `auto` as `optimizeSpeed`.Safari: Safari treats `auto` as `optimizeSpeed`. See bug 41363.Safari on iOS: Safari on iOS treats `auto` as `optimizeSpeed`. See bug 41363.Samsung Internet: Samsung Internet treats `auto` as `optimizeSpeed`.WebView Android: WebView Android treats `auto` as `optimizeSpeed`.WebView on iOS: WebView on iOS treats `auto` as `optimizeSpeed`. See bug 41363.
css.properties.text-rendering.geometricPrecision	Firefox	11/9/2004	Safari	7/25/2012	2815	Chrome: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Chrome Android: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Edge: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Firefox: Firefox treats `geometricPrecision` the same as `optimizeLegibility`.Firefox for Android: Firefox treats `geometricPrecision` the same as `optimizeLegibility`.Quest Browser: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Opera: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Opera Android: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Samsung Internet: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.WebView Android: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.
css.properties.text-rendering.optimizeLegibility 📋	Safari	6/7/2010	Firefox	11/15/2016	2353
css.properties.text-rendering.optimizeSpeed 📋	Safari	6/7/2010	Firefox	11/15/2016	2353
css.properties.text-shadow 📋	Safari	10/24/2003	Firefox	6/30/2009	2076	Firefox: Firefox versions before 57 have a bug whereby `transition`s will not work when transitioning from a `text-shadow` with a color specified to a `text-shadow` without a color specified (bug 726550).Firefox: From Firefox 4, the blur radius is capped at 300 for performance reasons.Firefox: Firefox theoretically supports infinite text-shadows (don't try it).Firefox: If the `<color>` value is unspecified, then Firefox uses the value of the element's `color` property.Firefox for Android: Firefox for Android versions before 57 have a bug whereby `transition`s will not work when transitioning from a `text-shadow` with a color specified to a `text-shadow` without a color specified (bug 726550).Firefox for Android: From Firefox for Android 4, the blur radius is capped at 300 for performance reasons.Firefox for Android: Firefox for Android theoretically supports infinite text-shadows (don't try it).Firefox for Android: If the `<color>` value is unspecified, then Firefox for Android uses the value of the element's `color` property.Opera: Opera supports a maximum of 6-9 text-shadows for performance reasons. The blur radius is limited to 100px.Opera: Opera 9.5 to 10.1 adheres to the old, reverse painting order (in CSS2, the first specified shadow is on the bottom).Safari: In Safari, any shadows that do not explicitly specify a color are transparent.Safari: Safari 1.1 to 3.2 only supports one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari 4.0 (WebKit 528) and later support multiple text-shadows.Safari on iOS: In Safari, any shadows that do not explicitly specify a color are transparent.Safari on iOS: Safari iOS 1 and 2 only support one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari iOS 3 (WebKit 528) and later support multiple text-shadows.WebView on iOS: In Safari, any shadows that do not explicitly specify a color are transparent.WebView on iOS: Safari iOS 1 and 2 only support one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari iOS 3 (WebKit 528) and later support multiple text-shadows.
css.properties.text-shadow.none 📋	Safari	10/24/2003	Firefox	6/30/2009	2076
css.properties.text-transform 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: The `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See bug 40214861.Chrome Android: The `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See bug 40214861.Quest Browser: The `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See bug 40214861.Opera: Since Opera 15, the `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See bug 40214861.Safari: The `text-transform` property does not work for `::first-line` pseudo-elements (also not for the old one-colon syntax). See bug 3409.Safari on iOS: The `text-transform` property does not work for `::first-line` pseudo-elements (also not for the old one-colon syntax). See bug 3409.Samsung Internet: The `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See bug 40214861.WebView Android: The `text-transform` property does not work for `::first-line` pseudo-elements (nor for the one-colon syntax). See bug 40214861.WebView on iOS: The `text-transform` property does not work for `::first-line` pseudo-elements (also not for the old one-colon syntax). See bug 3409.
css.properties.text-transform.capitalize 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 14, some punctuation characters could interfere with correct capitalization. See bug 731536.Firefox for Android: Before Firefox for Android 14, some punctuation characters could interfere with correct capitalization. See bug 731536.
css.properties.text-transform.lowercase 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-transform.lowercase_sigma	Firefox	7/17/2012	Chrome	10/1/2013	441
css.properties.text-transform.none 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-transform.turkic_is	Firefox	7/17/2012	Safari	10/16/2014	821
css.properties.text-transform.uppercase 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-transform.uppercase_eszett	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.text-underline-offset 📋	Safari	3/25/2019	Chrome	11/17/2020	603
css.properties.text-underline-offset.auto 📋	Safari	3/25/2019	Chrome	11/17/2020	603
css.properties.text-underline-offset.percentage 📋	Firefox	3/10/2020	Safari	12/11/2024	1737
css.properties.text-underline-position 📋	Chrome	2/20/2014	Firefox	3/10/2020	2210
css.properties.text-underline-position.auto 📋	Chrome	2/20/2014	Firefox	3/10/2020	2210
css.properties.text-underline-position.from-font 📋	Safari	3/25/2019	Chrome	11/17/2020	603
css.properties.text-underline-position.left 📋	Chrome	12/4/2018	Safari	12/11/2024	2199
css.properties.text-underline-position.right 📋	Chrome	12/4/2018	Safari	12/11/2024	2199
css.properties.text-underline-position.under 📋	Chrome	2/20/2014	Firefox	3/10/2020	2210
css.properties.text-wrap 📋	Chrome	5/30/2023	Safari	3/5/2024	280
css.properties.text-wrap.auto 📋	Firefox	12/19/2023	Chrome	10/15/2024	301
css.properties.text-wrap.balance 📋	Chrome	5/30/2023	Safari	5/13/2024	349
css.properties.text-wrap.nowrap 📋	Chrome	5/30/2023	Firefox	3/19/2024	294
css.properties.text-wrap.stable 📋	Firefox	12/19/2023	Chrome	10/15/2024	301
css.properties.text-wrap.wrap 📋	Chrome	5/30/2023	Firefox	3/19/2024	294
css.properties.text-wrap-mode 📋	Safari	3/5/2024	Chrome	10/15/2024	224
css.properties.text-wrap-mode.nowrap	Safari	3/5/2024	Chrome	10/15/2024	224
css.properties.text-wrap-mode.wrap	Safari	3/5/2024	Chrome	10/15/2024	224
css.properties.text-wrap-style 📋	Firefox	3/19/2024	Chrome	10/15/2024	210
css.properties.text-wrap-style.auto 📋	Firefox	3/19/2024	Chrome	10/15/2024	210
css.properties.text-wrap-style.balance 📋	Firefox	3/19/2024	Chrome	10/15/2024	210
css.properties.text-wrap-style.stable 📋	Firefox	3/19/2024	Chrome	10/15/2024	210
css.properties.top 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: In Internet Explorer versions before 7, when both `top` and `bottom` are specified, the element position is overconstrained and the `top` property has precedence; the computed value of `bottom` is set to `-top`, while its specified value is ignored.
css.properties.top.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.top.anchor-size 📋	Chrome	1/14/2025	Firefox	1/13/2026	364
css.properties.top.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.touch-action 📋	Chrome	7/16/2014	Safari	9/19/2019	1891	Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.manipulation	Chrome	7/16/2014	Safari	9/19/2019	1891	Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.none	Chrome	7/16/2014	Safari	9/19/2019	1891	Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.pan-x	Chrome	7/16/2014	Safari	9/19/2019	1891	Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.pan-y	Chrome	7/16/2014	Safari	9/19/2019	1891	Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.pinch-zoom	Chrome	1/25/2017	Firefox	1/26/2021	1462	Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.Firefox for Android: Not applicable to Firefox for Android platforms that support neither pointer nor touch events.
css.properties.transform 📋	Firefox	10/9/2012	Safari	9/30/2015	1086	Internet Explorer: Internet Explorer does not support the global values `initial` and `unset`.Internet Explorer: Internet Explorer 5.5 or later supports a proprietary Matrix Filter which can be used to achieve a similar effect.WebView Android: Android 2.3 has a bug where input forms will "jump" when typing, if any container element has a `-webkit-transform`.
css.properties.transform.3d	Safari	6/8/2009	Firefox	10/9/2012	1219
css.properties.transform.none 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.properties.transform-box 📋	Firefox	8/8/2017	Chrome	1/23/2018	168
css.properties.transform-box.border-box 📋	Firefox	8/8/2017	Chrome	10/10/2023	2254
css.properties.transform-box.content-box 📋	Safari	3/24/2020	Firefox	4/16/2024	1484
css.properties.transform-box.fill-box 📋	Firefox	8/8/2017	Chrome	1/23/2018	168
css.properties.transform-box.stroke-box 📋	Safari	3/24/2020	Firefox	4/16/2024	1484
css.properties.transform-box.view-box 📋	Firefox	8/8/2017	Chrome	1/23/2018	168
css.properties.transform-origin 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.transform-origin.bottom 📋	Safari	4/29/2005	Firefox	6/30/2009	1523
css.properties.transform-origin.center 📋	Safari	4/29/2005	Firefox	6/30/2009	1523
css.properties.transform-origin.left 📋	Safari	4/29/2005	Firefox	6/30/2009	1523
css.properties.transform-origin.right 📋	Safari	4/29/2005	Firefox	6/30/2009	1523
css.properties.transform-origin.svg_elements	Chrome	5/15/2012	Firefox	12/15/2015	1309	Firefox: Keywords and percentages refer to the canvas instead of the object itself. See bug 1209061.Firefox for Android: Keywords and percentages refer to the canvas instead of the object itself. See bug 1209061.Safari: Only supported for transformations applied using the CSS `transform` property (e.g. `.className { transform: rotate(45deg); transform-origin: center; }`). It has no effect on transformations applied using the `transform` SVG attribute (e.g. `<rect style="transform-origin: center;" transform="rotate(45)" />`).Safari on iOS: Only supported for transformations applied using the CSS `transform` property (e.g. `.className { transform: rotate(45deg); transform-origin: center; }`). It has no effect on transformations applied using the `transform` SVG attribute (e.g. `<rect style="transform-origin: center;" transform="rotate(45)" />`).WebView on iOS: Only supported for transformations applied using the CSS `transform` property (e.g. `.className { transform: rotate(45deg); transform-origin: center; }`). It has no effect on transformations applied using the `transform` SVG attribute (e.g. `<rect style="transform-origin: center;" transform="rotate(45)" />`).
css.properties.transform-origin.three_value_syntax	Safari	6/7/2010	Firefox	1/31/2012	603
css.properties.transform-origin.top 📋	Safari	4/29/2005	Firefox	6/30/2009	1523
css.properties.transform-style 📋	Firefox	10/9/2012	Safari	9/30/2015	1086	Safari: Before Safari 17, `::before` and `::after` pseudo elements were not included in the 3D rendering context (see bug 256430).
css.properties.transform-style.flat 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.transform-style.preserve-3d 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.properties.transition 📋	Firefox	10/9/2012	Safari	9/30/2015	1086	Firefox: Before Firefox 57, transitions do not work when transitioning from a `text-shadow` with a color specified to a `text-shadow` without a color specified (see bug 726550).Firefox: Before Firefox 57, cancelling a filling animation (for example, with `animation-fill-mode: forwards` set) can trigger a transition set on the same element, although only once (see bug 1192592 and these test cases for more information).Firefox: Before Firefox 57, the `background-position` property can't be transitioned between two values containing different numbers of `<position>` values, for example `background-position: 10px 10px;` and `background-position: 20px 20px, 30px 30px;` (see bug 1390446).Firefox for Android: Before Firefox for Android 57, transitions do not work when transitioning from a `text-shadow` with a color specified to a `text-shadow` without a color specified (see bug 726550).Firefox for Android: Before Firefox for Android 57, cancelling a filling animation (for example, with `animation-fill-mode: forwards` set) can trigger a transition set on the same element, although only once (see bug 1192592 and these test cases for more information).Firefox for Android: Before Firefox for Android 57, the `background-position` property can't be transitioned between two values containing different numbers of `<position>` values, for example `background-position: 10px 10px;` and `background-position: 20px 20px, 30px 30px;` (see bug 1390446).
css.properties.transition.all 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.allow-discrete 📋	Firefox	3/22/2011	Safari	9/20/2016	2009
css.properties.transition.ease 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.ease-in 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.ease-in-out 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.ease-out 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.linear 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.none 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.normal 📋	Firefox	3/22/2011	Safari	9/20/2016	2009
css.properties.transition.step-end 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.step-start 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition.transition-behavior	Chrome	9/12/2023	Firefox	8/6/2024	329
css.properties.transition-behavior 📋	Chrome	9/12/2023	Firefox	8/6/2024	329
css.properties.transition-behavior.allow-discrete 📋	Chrome	9/12/2023	Firefox	8/6/2024	329
css.properties.transition-behavior.normal 📋	Chrome	9/12/2023	Firefox	8/6/2024	329
css.properties.transition-delay 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.transition-duration 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.transition-property 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.transition-property.IDENT_value	Chrome	12/11/2008	Firefox	10/9/2012	1398
css.properties.transition-property.all 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-property.none 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-timing-function 📋	Firefox	10/9/2012	Safari	9/30/2015	1086
css.properties.transition-timing-function.ease 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-timing-function.ease-in 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-timing-function.ease-in-out 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-timing-function.ease-out 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-timing-function.jump	Firefox	1/29/2019	Safari	9/16/2020	596
css.properties.transition-timing-function.linear 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-timing-function.step-end 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.transition-timing-function.step-start 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.properties.translate 📋	Firefox	1/7/2020	Chrome	8/2/2022	938
css.properties.translate.none 📋	Firefox	1/7/2020	Chrome	8/2/2022	938
css.properties.unicode-bidi 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.unicode-bidi.bidi-override 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.unicode-bidi.embed 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.unicode-bidi.isolate 📋	Chrome	1/20/2016	Safari	9/19/2017	608	Chrome: Before Chrome 47, `-webkit-isolate` could lock up the browser.Chrome: Since Chrome 19, the syntax from a previous version of the specification, where the `isolate` keyword could be used together with `bidi-override`, is allowed.Firefox: From Firefox 10 to Firefox 16 (inclusive), the `isolate` keyword could be used together with `bidi-override`, which was the syntax from a previous version of the specification. From Firefox 17, only one value is allowed. Use `isolate-override` instead the previous `isolate bidi-override`.Firefox for Android: From Firefox for Android 10 to Firefox for Android 16 (inclusive), the `isolate` keyword could be used together with `bidi-override`, which was the syntax from a previous version of the specification. From Firefox for Android 17, only one value is allowed. Use `isolate-override` instead the previous `isolate bidi-override`.Opera: Before Opera 34, `-webkit-isolate` could lock up the browser.Opera: Since Opera 15, the syntax from a previous version of the specification, where the `isolate` keyword could be used together with `bidi-override`, is allowed.Safari: Before Safari 9, `-webkit-isolate` could lock up the browser.Safari on iOS: Before Safari on iOS 9, `-webkit-isolate` could lock up the browser.WebView on iOS: Before WebView on iOS 9, `-webkit-isolate` could lock up the browser.
css.properties.unicode-bidi.isolate-override 📋	Chrome	1/20/2016	Safari	9/19/2017	608
css.properties.unicode-bidi.normal 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.properties.unicode-bidi.plaintext 📋	Chrome	1/20/2016	Safari	9/19/2017	608	Firefox: Before Firefox 50, the `plaintext` value was ignored for vertical writing modes (bug 1302734).Firefox: Before Firefox 15, `plaintext` didn't do anything to an inline element. The specification changed and the implementation was changed in Firefox 15.Firefox for Android: Before Firefox for Android 50, the `plaintext` value was ignored for vertical writing modes (bug 1302734).Firefox for Android: Before Firefox for Android 15, `plaintext` didn't do anything to an inline element. The specification changed and the implementation was changed in Firefox for Android 15.
css.properties.user-select 📋	Safari	10/26/2007	Firefox	9/3/2019	4330
css.properties.user-select.all	Firefox	11/9/2004	Safari	9/12/2022	6516
css.properties.user-select.auto	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.user-select.none	Safari	4/29/2005	Firefox	5/14/2013	2937
css.properties.user-select.text	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.properties.vector-effect 📋	Chrome	9/2/2010	Firefox	8/28/2012	726
css.properties.vector-effect.non-scaling-stroke 📋	Chrome	9/2/2010	Firefox	8/28/2012	726
css.properties.vector-effect.none 📋	Chrome	9/2/2010	Firefox	8/28/2012	726
css.properties.vertical-align 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.baseline 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.bottom 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.middle 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.sub 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.super 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.text-bottom 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.text-top 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.vertical-align.top 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.view-timeline 📋	Firefox	6/6/2023	Safari	9/15/2025	832	Firefox: Now supports the `x` and `y` values, and also the deprecated `horizontal` and `vertical` values.
css.properties.view-timeline-axis 📋	Firefox	6/6/2023	Safari	9/15/2025	832	Firefox: Now supports the `x` and `y` values, and also the deprecated `horizontal` and `vertical` values.
css.properties.view-timeline-name 📋	Firefox	3/14/2023	Safari	9/15/2025	916
css.properties.view-transition-class 📋	Chrome	5/14/2024	Firefox	10/14/2025	518
css.properties.view-transition-class.none 📋	Chrome	5/14/2024	Firefox	10/14/2025	518
css.properties.view-transition-name 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
css.properties.view-transition-name.match-element 📋	Safari	3/31/2025	Firefox	10/14/2025	197
css.properties.view-transition-name.none 📋	Chrome	3/7/2023	Firefox	10/14/2025	952
css.properties.visibility 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Internet Explorer doesn't support `visibility: initial`.Internet Explorer: Internet Explorer doesn't support `visibility: unset`.Internet Explorer: Up to Internet Explorer 7, descendants of `hidden` elements will still be invisible even if they have `visibility` set to `visible`.
css.properties.visibility.collapse 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: Before Chrome 62, `visibility: collapse` has the same effect as `hidden` for `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements, flex items, and ruby annotations, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Chrome: Before Chrome 92, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Chrome: Since Chrome 92, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.Chrome Android: Before Chrome Android 62, `visibility: collapse` has the same effect as `hidden` for `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements, flex items, and ruby annotations, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Chrome Android: Before Chrome Android 92, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Chrome Android: Since Chrome Android 92, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.Edge: For Edge 79 through Edge 91, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Edge: Since Edge 92, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.Firefox: Firefox doesn't hide borders when hiding `<col>` and `<colgroup>` elements if `border-collapse: collapse` is set.Firefox: Before Firefox 88, `collapse` is not supported on ruby annotations.Firefox for Android: Firefox for Android doesn't hide borders when hiding `<col>` and `<colgroup>` elements if `border-collapse: collapse` is set.Firefox for Android: Before Firefox for Android 88, `collapse` is not supported on ruby annotations.Quest Browser: Before Quest Browser 5.0, `visibility: collapse` has the same effect as `hidden` for `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements, flex items, and ruby annotations, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Quest Browser: Before Quest Browser 17.0, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Quest Browser: Since Quest Browser 17.0, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.Opera: Before Opera 49, `visibility: collapse` has the same effect as `hidden` for `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements, flex items, and ruby annotations, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Opera: Before Opera 78, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Opera: Since Opera 78, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.Opera Android: Before Opera Android 46, `visibility: collapse` has the same effect as `hidden` for `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements, flex items, and ruby annotations, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Opera Android: Before Opera Android 65, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Opera Android: Since Opera Android 65, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.Safari: Safari treats `visibility: collapse` like `hidden`, leaving a white gap.Safari: Safari supports the collapse value only on `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>`, but not on `<col>` and `<colgroup>` elements.Safari on iOS: Safari on iOS treats `visibility: collapse` like `hidden`, leaving a white gap.Safari on iOS: Safari on iOS supports the collapse value only on `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>`, but not on `<col>` and `<colgroup>` elements.Samsung Internet: Before Samsung Internet 8.0, `visibility: collapse` has the same effect as `hidden` for `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements, flex items, and ruby annotations, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Samsung Internet: Before Samsung Internet 16.0, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.Samsung Internet: Since Samsung Internet 16.0, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.WebView Android: Before WebView Android 62, `visibility: collapse` has the same effect as `hidden` for `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements, flex items, and ruby annotations, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.WebView Android: Before WebView Android 92, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap. It has no effect on `<col>` and `<colgroup>` elements.WebView Android: Since WebView Android 92, `visibility: collapse` supports `<tr>`, `<thead>`, `<tbody>`, `<tfoot>`, `<col>` and `<colgroup>` elements. For flex items and ruby annotations, it has the same effect as `hidden`, leaving a blank gap.WebView on iOS: WebView on iOS treats `visibility: collapse` like `hidden`, leaving a white gap.WebView on iOS: WebView on iOS supports the collapse value only on `<tr>`, `<thead>`, `<tbody>`, and `<tfoot>`, but not on `<col>` and `<colgroup>` elements.
css.properties.visibility.hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.visibility.visible 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.white-space 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.white-space.break-spaces 📋	Chrome	7/30/2019	Safari	3/24/2020	238
css.properties.white-space.collapse 📋	Chrome	5/30/2023	Safari	9/16/2024	475
css.properties.white-space.normal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.white-space.nowrap 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.white-space.pre 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.white-space.pre-line 📋	Safari	10/26/2007	Firefox	6/30/2009	613
css.properties.white-space.pre-wrap 📋	Safari	10/26/2007	Chrome	12/11/2008	412	Internet Explorer: From Internet Explorer 5.5 to 7, `word-wrap: break-word;` can be used for line breaks in `pre` elements.
css.properties.white-space.preserve 📋	Chrome	5/30/2023	Safari	9/16/2024	475
css.properties.white-space.preserve-breaks 📋	Chrome	5/30/2023	Safari	9/16/2024	475
css.properties.white-space.textarea_support	Safari	6/23/2003	Firefox	2/24/2015	4264
css.properties.white-space.wrap 📋	Chrome	5/30/2023	Safari	9/16/2024	475
css.properties.white-space-collapse 📋	Chrome	5/30/2023	Firefox	3/19/2024	294
css.properties.white-space-collapse.break-spaces 📋	Chrome	5/30/2023	Firefox	3/19/2024	294
css.properties.white-space-collapse.collapse 📋	Chrome	5/30/2023	Firefox	3/19/2024	294
css.properties.white-space-collapse.preserve 📋	Chrome	5/30/2023	Firefox	3/19/2024	294
css.properties.white-space-collapse.preserve-breaks 📋	Chrome	5/30/2023	Firefox	3/19/2024	294
css.properties.width 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.width.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.properties.width.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.width.fit-content 📋	Chrome	10/13/2015	Firefox	11/2/2021	2212
css.properties.width.is_animatable	Firefox	10/9/2012	Safari	10/22/2013	378
css.properties.width.max-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.width.min-content 📋	Chrome	10/13/2015	Firefox	3/19/2019	1253
css.properties.width.stretch 📋	Safari	10/22/2013	Firefox	12/9/2025	4431
css.properties.will-change 📋	Chrome	7/16/2014	Safari	3/21/2016	614
css.properties.will-change.auto 📋	Chrome	7/16/2014	Safari	3/21/2016	614
css.properties.will-change.contents 📋	Chrome	7/16/2014	Safari	3/21/2016	614
css.properties.will-change.scroll-position 📋	Chrome	7/16/2014	Safari	3/21/2016	614
css.properties.word-break 📋	Safari	10/26/2007	Firefox	8/28/2012	1768	Internet Explorer: No version of Internet Explorer supports the `initial` value.Internet Explorer: Don't use `-ms-word-break`, which is a synonym for `word-break`.
css.properties.word-break.break-all 📋	Safari	10/26/2007	Firefox	8/28/2012	1768
css.properties.word-break.break-word 📋	Safari	10/26/2007	Firefox	5/21/2019	4225
css.properties.word-break.keep-all 📋	Firefox	8/28/2012	Safari	9/30/2015	1128
css.properties.word-break.normal 📋	Safari	10/26/2007	Firefox	8/28/2012	1768
css.properties.word-spacing 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.word-spacing.normal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.word-spacing.percentages	Safari	10/22/2013	Chrome	2/10/2026	4494
css.properties.word-spacing.svg_elements	Chrome	12/11/2008	Firefox	1/7/2020	4044
css.properties.writing-mode 📋	Firefox	9/22/2015	Safari	3/27/2017	552	Firefox: Firefox 42 added support for bidirectional and RTL scripts in vertical modes.Firefox for Android: Firefox for Android 42 added support for bidirectional and RTL scripts in vertical modes.Internet Explorer: Internet Explorer's implementation differs from the specification.Internet Explorer: Internet Explorer's implementation differs from the specification.
css.properties.writing-mode.horizontal-tb	Safari	9/30/2015	Chrome	1/20/2016	112
css.properties.writing-mode.lr	Firefox	12/15/2015	Safari	3/27/2017	468
css.properties.writing-mode.lr-tb	Firefox	12/15/2015	Safari	3/27/2017	468
css.properties.writing-mode.rl	Firefox	12/15/2015	Safari	3/27/2017	468
css.properties.writing-mode.rl-tb	Firefox	12/15/2015	Safari	3/27/2017	468
css.properties.writing-mode.sideways-lr	Firefox	12/15/2015	Safari	3/31/2025	3394
css.properties.writing-mode.sideways-rl	Firefox	12/15/2015	Safari	3/31/2025	3394
css.properties.writing-mode.tb	Firefox	12/15/2015	Safari	3/27/2017	468
css.properties.writing-mode.tb-rl	Firefox	12/15/2015	Safari	3/27/2017	468
css.properties.writing-mode.vertical-lr	Safari	9/30/2015	Chrome	1/20/2016	112
css.properties.writing-mode.vertical-rl	Safari	9/30/2015	Chrome	1/20/2016	112
css.properties.writing-mode.vertical_oriented_form_controls	Firefox	11/21/2023	Chrome	4/16/2024	147	Chrome: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Chrome: Supported for select, button, textarea and textual input elements.Chrome: Only supported for select and button elements.Chrome Android: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Chrome Android: Supported for select, button, textarea and textual input elements.Chrome Android: Only supported for select and button elements.Edge: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Edge: Supported for select, button, textarea and textual input elements.Edge: Only supported for select and button elements.Opera: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Opera: Supported for select, button, textarea and textual input elements.Opera: Only supported for select and button elements.Opera Android: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Opera Android: Supported for select, button, textarea and textual input elements.Opera Android: Only supported for select and button elements.Safari: Support for range sliders, textual inputs, and textareas onlySafari on iOS: Support for range sliders, textual inputs, and textareas onlySamsung Internet: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Samsung Internet: Supported for select, button, textarea and textual input elements.WebView Android: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.WebView Android: Supported for select, button, textarea and textual input elements.WebView Android: Only supported for select and button elements.WebView on iOS: Support for range sliders, textual inputs, and textareas only
css.properties.x 📋	Chrome	4/14/2015	Firefox	9/3/2019	1603
css.properties.y 📋	Chrome	4/14/2015	Firefox	9/3/2019	1603
css.properties.z-index 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.z-index.auto 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.z-index.negative_values	Safari	6/23/2003	Chrome	12/11/2008	1998
css.properties.zoom 📋	Safari	3/18/2008	Firefox	5/14/2024	5901	Firefox: Before Firefox 131, SVG elements are not zoomed properly. See bug 1905023 and bug 878346.Firefox for Android: Before Firefox for Android 131, SVG elements are not zoomed properly. See bug 1905023 and bug 878346.
css.selectors.active 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.active.non_a_elements	Safari	6/23/2003	Chrome	12/11/2008	1998	Safari on iOS: By default, Safari on iOS does not use the `:active` state unless there is a `touchstart` event handler on the relevant element or on the `<body>` element.WebView on iOS: By default, WebView on iOS does not use the `:active` state unless there is a `touchstart` event handler on the relevant element or on the `<body>` element.
css.selectors.active-view-transition 📋	Chrome	5/14/2024	Firefox	10/14/2025	518
css.selectors.active-view-transition-type 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.selectors.after 📋	Firefox	11/29/2005	Safari	6/8/2009	1287	Firefox: Before Firefox 57, Firefox had a bug where `::after` pseudo-elements were still generated, even if the `content` property value were set to `normal` or `none`.Firefox: Before Firefox 3.5, only the CSS level 2 behavior of `:after` was supported, which disallowed `position`, `float`, `list-style-` and some `display` properties.Firefox for Android: Before Firefox for Android 57, Firefox for Android had a bug where `::after` pseudo-elements were still generated, even if the `content` property value were set to `normal` or `none`.Firefox for Android: Before Firefox for Android 4.5, only the CSS level 2 behavior of `:after` was supported, which disallowed `position`, `float`, `list-style-` and some `display` properties.
css.selectors.after.animation_and_transition_support	Firefox	3/22/2011	Safari	10/22/2013	945
css.selectors.any-link 📋	Safari	9/30/2015	Chrome	3/6/2018	888
css.selectors.any-link.not_match_link	Chrome	3/6/2018	Safari	9/20/2021	1294
css.selectors.attribute 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.attribute.case_insensitive_modifier	Safari	9/30/2015	Firefox	6/7/2016	251
css.selectors.autofill 📋	Firefox	2/23/2021	Chrome	2/7/2023	714	Firefox: The `:autofill` pseudo-class matches autofilled username and password fields, but not other autocompleted fields. See bug 1923525.Firefox: The `:-webkit-autofill` pseudo-class matches autofilled username and password fields, but not other autocompleted fields. See bug 1923525.Firefox for Android: The `:autofill` pseudo-class matches autofilled username and password fields, but not other autocompleted fields. See bug 1923525.Firefox for Android: The `:-webkit-autofill` pseudo-class matches autofilled username and password fields, but not other autocompleted fields. See bug 1923525.
css.selectors.backdrop 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
css.selectors.backdrop.dialog	Chrome	1/14/2014	Safari	3/14/2022	2981
css.selectors.backdrop.fullscreen	Firefox	6/7/2016	Safari	3/27/2023	2484
css.selectors.backdrop.inherit_from_originating_element	Firefox	11/21/2023	Safari	3/5/2024	105
css.selectors.backdrop.popover	Chrome	5/30/2023	Firefox	4/16/2024	322
css.selectors.before 📋	Firefox	11/29/2005	Safari	6/8/2009	1287	Firefox: Before Firefox 57, Firefox had a bug where `::before` pseudo-elements were still generated, even if the `content` property value were set to `normal` or `none`.Firefox: Before Firefox 3.5, only the CSS level 2 behavior of `:before` was supported, which disallowed `position`, `float`, `list-style-*` and some `display` properties.Firefox for Android: Before Firefox 57, Firefox had a bug where `::before` pseudo-elements were still generated, even if the `content` property value were set to `normal` or `none`.
css.selectors.before.animation_and_transition_support	Firefox	3/22/2011	Safari	10/22/2013	945
css.selectors.checked 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: On macOS, styling `<option>` elements has no effect.Edge: On macOS, styling `<option>` elements has no effect.Firefox: From Firefox 56, `<option>` elements cannot be styled.Firefox: On macOS, styling `<option>` elements has no effect.Firefox for Android: From Firefox 56, `<option>` elements cannot be styled.Opera: On macOS, styling `<option>` elements has no effect.Safari: Styling `<option>` elements has no effect.Safari on iOS: Styling `<option>` elements has no effect.WebView on iOS: Styling `<option>` elements has no effect.
css.selectors.child 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Before Internet Explorer 10, the combinator only works in standards mode.
css.selectors.class 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.cue 📋	Chrome	3/26/2013	Firefox	8/8/2017	1596	Firefox: From Firefox 69, only allowed properties apply to the `::cue` pseudo-element with no argument. See Permitted properties for a list of the allowed properties.
css.selectors.default 📋	Safari	6/7/2010	Firefox	3/22/2011	288
css.selectors.defined 📋	Safari	9/20/2016	Firefox	10/23/2018	763
css.selectors.descendant 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.details-content 📋	Chrome	11/12/2024	Firefox	9/16/2025	308	Safari: Does not support chaining pseudo-elements after `::details-content`. See bug 283446.Safari on iOS: Does not support chaining pseudo-elements after `::details-content`. See bug 283446.WebView on iOS: Does not support chaining pseudo-elements after `::details-content`. See bug 283446.
css.selectors.dir 📋	Firefox	9/20/2016	Chrome	12/5/2023	2632
css.selectors.disabled 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Edge: Before Edge 79, Edge did not recognize `:disabled` on the `<fieldset>` element.Internet Explorer: Internet Explorer does not recognize `:disabled` on the `<fieldset>` element.
css.selectors.empty 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.enabled 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.file-selector-button 📋	Firefox	10/20/2020	Safari	4/26/2021	188
css.selectors.first 📋	Chrome	3/28/2012	Firefox	8/1/2023	4143
css.selectors.first-child 📋	Safari	3/18/2008	Chrome	1/25/2010	678	Internet Explorer: Internet Explorer 7 doesn't update `:first-child` styles when elements are added dynamically.Internet Explorer: In Internet Explorer 8, if an element is inserted dynamically by clicking on a link, then the `:first-child` style isn't applied until the link loses focus.
css.selectors.first-letter 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.first-line 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: Before Chrome 62, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.Chrome: Before Chrome 62, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.Chrome Android: Before Chrome Android 62, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.Chrome Android: Before Chrome Android 62, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.Quest Browser: Before Quest Browser 5.0, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.Quest Browser: Before Quest Browser 5.0, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.Opera: From Opera 15 to Opera 49 (exclusive), the `text-transform` property does not work on `::first-line` or `:first-line` pseudo-elements. See bug 40214861.Opera: From Opera 15 to Opera 49 (exclusive), the `text-transform` property does not work on `::first-line` or `:first-line` pseudo-elements. See bug 40214861.Opera Android: From Opera 15 to Opera 49 (exclusive), the `text-transform` property does not work on `::first-line` or `:first-line` pseudo-elements. See bug 40214861.Opera Android: From Opera 15 to Opera 49 (exclusive), the `text-transform` property does not work on `::first-line` or `:first-line` pseudo-elements. See bug 40214861.Safari: The `text-transform` property does not work for `::first-line` or `:first-line` pseudo-elements. See bug 3409.Safari: The `text-transform` property does not work for `::first-line` or `:first-line` pseudo-elements. See bug 3409.Safari on iOS: The `text-transform` property does not work for `::first-line` or `:first-line` pseudo-elements. See bug 3409.Safari on iOS: The `text-transform` property does not work for `::first-line` or `:first-line` pseudo-elements. See bug 3409.Samsung Internet: Before Samsung Internet 8.0, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.Samsung Internet: Before Samsung Internet 8.0, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.WebView Android: Before WebView Android 62, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.WebView Android: Before WebView Android 62, the `text-transform` property does not work on `::first-line` pseudo-elements. See bug 40214861.WebView on iOS: The `text-transform` property does not work for `::first-line` or `:first-line` pseudo-elements. See bug 3409.WebView on iOS: The `text-transform` property does not work for `::first-line` or `:first-line` pseudo-elements. See bug 3409.
css.selectors.first-of-type 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.focus 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.focus-visible 📋	Chrome	10/20/2020	Safari	3/14/2022	510
css.selectors.focus-within 📋	Firefox	3/7/2017	Chrome	7/25/2017	140
css.selectors.fullscreen 📋	Chrome	12/4/2018	Safari	3/27/2023	1574	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.
css.selectors.has 📋	Safari	3/14/2022	Firefox	12/19/2023	645
css.selectors.highlight 📋	Chrome	9/2/2022	Firefox	6/24/2025	1026	Firefox: Cannot yet be used with `text-shadow`. See bug 1845447.Firefox: Before Firefox 146, cannot be used with `text-decoration`. See bug 1845446.Firefox for Android: Cannot yet be used with `text-shadow`. See bug 1845447.Firefox for Android: Before Firefox for Android 146, cannot be used with `text-decoration`. See bug 1845446.Safari: The style is ignored when combined with `user-select: none`. See bug 278455.Safari on iOS: The style is ignored when combined with `user-select: none`. See bug 278455.WebView on iOS: The style is ignored when combined with `user-select: none`. See bug 278455.
css.selectors.host 📋	Safari	9/20/2016	Firefox	10/23/2018	763
css.selectors.hostfunction 📋	Safari	9/20/2016	Firefox	10/23/2018	763	Safari: Certain CSS selectors do not work (:host > .local-child) and styling slotted content (::slotted) is buggy.Safari on iOS: Certain CSS selectors do not work (:host > .local-child) and styling slotted content (::slotted) is buggy.WebView on iOS: Certain CSS selectors do not work (:host > .local-child) and styling slotted content (::slotted) is buggy.
css.selectors.hover 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Safari on iOS: As of Safari for iOS 7.1.2, tapping a clickable element causes the element to enter the `:hover` state. The element will remain in the `:hover` state until a different element has entered the `:hover` state.WebView on iOS: As of Safari for iOS 7.1.2, tapping a clickable element causes the element to enter the `:hover` state. The element will remain in the `:hover` state until a different element has entered the `:hover` state.
css.selectors.hover.a_elements	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.hover.all_elements	Firefox	11/9/2004	Chrome	12/11/2008	1493	Edge: In Edge, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the `:hover` state until the pointer is moved.Internet Explorer: In Internet Explorer 8 to Internet Explorer 11, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the `:hover` state until the pointer is moved. See bug 926665.Internet Explorer: In Internet Explorer 9 (and possibly earlier), if a `<table>` has a parent with a non-`auto` `width`, `overflow-x: auto;`, the `<table>` has enough content to horizontally overflow its parent, and there are `:hover` styles set on elements within the table, then hovering over said elements will cause the `<table>`'s height to increase. See a live demo that triggers the bug. One workaround for the bug is to set `min-height: 0%;` (the `%` unit must be specified, since unitless and `px` don't work) on the `<table>`'s parent element.
css.selectors.id 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.in-range 📋	Chrome	3/8/2011	Firefox	4/29/2014	1148	Chrome: Before Chrome 52, `:in-range` matched disabled and read-only inputs (see bug 41248615). In Chrome 52, it was changed to only match enabled read-write inputs.Chrome Android: Before Chrome Android 52, `:in-range` matched disabled and read-only inputs (see bug 41248615). In Chrome Android 52, it was changed to only match enabled read-write inputs.Firefox: Before Firefox 50, `:in-range` matched disabled and read-only inputs (see bug 1264157). In Firefox 50, it was changed to only match enabled read-write inputs.Quest Browser: Before Quest Browser 5.0, `:in-range` matched disabled and read-only inputs (see bug 41248615). In Quest Browser 5.0, it was changed to only match enabled read-write inputs.Opera: Before Opera 39, `:in-range` matched disabled and read-only inputs (see bug 41248615). In Opera 39, it was changed to only match enabled read-write inputs.Opera Android: Before Opera 39, `:in-range` matched disabled and read-only inputs (see bug 41248615). In Opera 39, it was changed to only match enabled read-write inputs.Safari: In Safari, `:in-range` matched disabled and read-only inputs (see bug 156530). It was later changed to only match enabled read-write inputs.Safari on iOS: In Safari on iOS, `:in-range` matched disabled and read-only inputs (see bug 156530). It was later changed to only match enabled read-write inputs.Samsung Internet: Before version 6.0, `:in-range` matched disabled and read-only inputs (see bug 41248615). In version 6.0, it was changed to only match enabled read-write inputs.WebView Android: Before version 52, `:in-range` matched disabled and read-only inputs (see bug 41248615). In version 52, it was changed to only match enabled read-write inputs.WebView on iOS: In WebView on iOS, `:in-range` matched disabled and read-only inputs (see bug 156530). It was later changed to only match enabled read-write inputs.
css.selectors.indeterminate 📋	Firefox	10/24/2006	Chrome	12/11/2008	779
css.selectors.indeterminate.checkbox	Safari	10/26/2007	Firefox	1/21/2010	818
css.selectors.indeterminate.progress	Chrome	9/2/2010	Firefox	8/16/2011	348
css.selectors.indeterminate.radio	Chrome	11/18/2014	Firefox	1/24/2017	798
css.selectors.invalid 📋	Safari	6/7/2010	Firefox	3/22/2011	288
css.selectors.invalid.form	Firefox	6/5/2012	Safari	9/30/2015	1212
css.selectors.is 📋	Firefox	6/30/2020	Chrome	1/19/2021	203	Chrome: Doesn't support combinators.Chrome Android: Doesn't support combinators.Edge: Doesn't support combinators.Firefox: Doesn't support combinators.Firefox: See bug 906353.Firefox for Android: Doesn't support combinators.Firefox for Android: See bug 906353.Quest Browser: Doesn't support combinators.Opera: Doesn't support combinators.Opera Android: Doesn't support combinators.Safari: Doesn't support combinators.Safari on iOS: Doesn't support combinators.WebView Android: Doesn't support combinators.WebView on iOS: Doesn't support combinators.
css.selectors.is.forgiving_selector_list	Safari	9/16/2020	Chrome	1/19/2021	125
css.selectors.lang 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.last-child 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.last-of-type 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.link 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.link.not_match_link	Chrome	12/11/2008	Safari	9/20/2021	4666
css.selectors.list 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.marker 📋	Safari	4/12/2018	Chrome	10/20/2020	922	Safari: Safari support is limited to `color` and `font-size`.Safari on iOS: Safari on iOS support is limited to `color` and `font-size`.WebView on iOS: WebView on iOS support is limited to `color` and `font-size`.
css.selectors.marker.animation_and_transition_support	Firefox	8/25/2020	Safari	4/26/2021	244
css.selectors.modal 📋	Safari	7/20/2022	Chrome	9/2/2022	44
css.selectors.namespace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.nesting 📋	Firefox	8/29/2023	Safari	12/11/2023	104	Chrome: Does not support nested rules that start with a type selector.Chrome Android: Does not support nested rules that start with a type selector.Edge: Does not support nested rules that start with a type selector.Opera: Does not support nested rules that start with a type selector.Opera Android: Does not support nested rules that start with a type selector.Safari: Does not support nested rules that start with a type selector.Safari on iOS: Does not support nested rules that start with a type selector.Samsung Internet: Does not support nested rules that start with a type selector.WebView Android: Does not support nested rules that start with a type selector.WebView on iOS: Does not support nested rules that start with a type selector.
css.selectors.nesting.at-scope	Firefox	8/19/2025	Safari	12/12/2025	115
css.selectors.next-sibling 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Before Internet Explorer 10, the combinator only works in standards mode.Internet Explorer: Internet Explorer 7 doesn't update the style correctly when an element is dynamically placed before an element that matched the selector.Internet Explorer: In Internet Explorer 8, if an element is inserted dynamically by clicking on a link the first-child style isn't applied until the link loses focus.
css.selectors.not 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.not.selector_list	Safari	9/30/2015	Chrome	1/19/2021	1938
css.selectors.nth-child 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Opera: Before Opera 15, Opera does not handle dynamically inserted elements for `:nth-child()`.Opera Android: Before Opera 15, Opera does not handle dynamically inserted elements for `:nth-child()`.
css.selectors.nth-child.of_syntax	Safari	9/30/2015	Firefox	5/9/2023	2778
css.selectors.nth-last-child 📋	Safari	3/18/2008	Chrome	1/25/2010	678
css.selectors.nth-last-child.of_syntax	Safari	9/30/2015	Firefox	5/9/2023	2778
css.selectors.nth-last-of-type 📋	Safari	3/18/2008	Chrome	1/25/2010	678	Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.nth-of-type 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.only-child 📋	Firefox	11/29/2005	Chrome	5/21/2009	1269
css.selectors.only-child.no_parent_required	Firefox	3/7/2017	Safari	9/18/2023	2386
css.selectors.only-of-type 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.optional 📋	Safari	6/7/2010	Firefox	3/22/2011	288
css.selectors.out-of-range 📋	Chrome	3/8/2011	Firefox	4/29/2014	1148
css.selectors.part 📋	Chrome	3/12/2019	Safari	3/24/2020	378
css.selectors.placeholder 📋	Firefox	1/24/2017	Safari	3/27/2017	62
css.selectors.placeholder-shown 📋	Safari	9/30/2015	Firefox	1/24/2017	482
css.selectors.placeholder-shown.non_text_types	Safari	9/30/2015	Firefox	3/13/2018	895
css.selectors.popover-open 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
css.selectors.read-only 📋	Chrome	12/11/2008	Firefox	6/30/2020	4219
css.selectors.read-write 📋	Chrome	12/11/2008	Firefox	6/30/2020	4219
css.selectors.required 📋	Safari	6/7/2010	Firefox	3/22/2011	288
css.selectors.root 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.scope 📋	Chrome	5/21/2013	Firefox	9/2/2014	469	Firefox: Firefox 55 removes support for `<style scoped>` but not for the `:scope` pseudo-class, which is still supported. `<style scoped>` made it possible to explicitly set up element scopes, but ongoing discussions about the design of this feature as well as lack of other implementations resulted in the decision to remove it.Firefox for Android: Firefox for Android 55 removes support for `<style scoped>` but not for the `:scope` pseudo-class, which is still supported. `<style scoped>` made it possible to explicitly set up element scopes, but ongoing discussions about the design of this feature as well as lack of other implementations resulted in the decision to remove it.
css.selectors.scope.dom_api	Chrome	5/21/2013	Firefox	9/2/2014	469
css.selectors.selection 📋	Safari	10/24/2003	Firefox	9/5/2018	5430
css.selectors.slotted 📋	Chrome	4/13/2016	Firefox	10/23/2018	923
css.selectors.state 📋	Safari	3/5/2024	Firefox	5/14/2024	70	Chrome: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.Chrome Android: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.Edge: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.Quest Browser: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.Opera: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.Opera Android: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.Samsung Internet: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.WebView Android: Uses a dashed-ident (such as `:--foo`) instead of `:state()`.
css.selectors.subsequent-sibling 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Internet Explorer: Before Internet Explorer 10, the combinator only works in standards mode.
css.selectors.target 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.target-text 📋	Chrome	3/2/2021	Safari	12/11/2024	1380
css.selectors.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.type.namespaces	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.universal 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.universal.namespaces	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.selectors.user-invalid 📋	Firefox	4/19/2021	Chrome	10/31/2023	925
css.selectors.user-valid 📋	Firefox	4/19/2021	Chrome	10/31/2023	925
css.selectors.valid 📋	Safari	6/7/2010	Firefox	3/22/2011	288
css.selectors.valid.form	Firefox	6/5/2012	Safari	9/30/2015	1212
css.selectors.view-transition 📋	Chrome	1/10/2023	Firefox	10/14/2025	1008
css.selectors.view-transition-group 📋	Chrome	1/10/2023	Firefox	10/14/2025	1008
css.selectors.view-transition-image-pair 📋	Chrome	1/10/2023	Firefox	10/14/2025	1008
css.selectors.view-transition-new 📋	Chrome	1/10/2023	Firefox	10/14/2025	1008
css.selectors.view-transition-old 📋	Chrome	1/10/2023	Firefox	10/14/2025	1008
css.selectors.visited 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.selectors.visited.not_match_link	Chrome	12/11/2008	Safari	9/20/2021	4666
css.selectors.visited.privacy_measures	Safari	6/7/2010	Firefox	3/22/2011	288
css.selectors.where 📋	Firefox	6/30/2020	Chrome	1/19/2021	203
css.selectors.where.forgiving_selector_list	Safari	9/16/2020	Chrome	1/19/2021	125
css.types.abs 📋	Safari	3/14/2022	Chrome	6/24/2025	1198
css.types.acos 📋	Safari	3/14/2022	Chrome	3/7/2023	358
css.types.anchor 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.types.anchor-size 📋	Chrome	5/14/2024	Firefox	1/13/2026	609
css.types.angle 📋	Chrome	5/21/2009	Firefox	1/21/2010	245
css.types.angle.deg	Chrome	5/21/2009	Firefox	1/21/2010	245
css.types.angle.grad	Chrome	5/21/2009	Firefox	1/21/2010	245
css.types.angle.rad	Chrome	5/21/2009	Firefox	1/21/2010	245
css.types.angle.turn	Chrome	5/21/2009	Firefox	6/5/2012	1111
css.types.angle-percentage 📋	Chrome	5/21/2009	Firefox	1/21/2010	245
css.types.asin 📋	Safari	3/14/2022	Chrome	3/7/2023	358
css.types.atan 📋	Safari	3/14/2022	Chrome	3/7/2023	358
css.types.atan2 📋	Safari	3/14/2022	Chrome	3/7/2023	358
css.types.attr 📋	Firefox	11/9/2004	Chrome	5/21/2009	1654
css.types.attr.declaration-value 📋	Firefox	10/24/2023	Safari	3/31/2025	524
css.types.basic-shape 📋	Chrome	8/26/2014	Firefox	6/13/2017	1022
css.types.basic-shape.animation	Chrome	8/26/2014	Firefox	6/13/2017	1022
css.types.basic-shape.circle 📋	Chrome	8/26/2014	Firefox	6/13/2017	1022
css.types.basic-shape.ellipse 📋	Chrome	8/26/2014	Firefox	6/13/2017	1022
css.types.basic-shape.inset 📋	Chrome	8/26/2014	Firefox	6/13/2017	1022
css.types.basic-shape.path 📋	Chrome	7/20/2016	Safari	3/24/2020	1343
css.types.basic-shape.path.clip-path 📋	Firefox	1/7/2020	Chrome	1/19/2021	378
css.types.basic-shape.path.offset-path 📋	Chrome	1/25/2017	Safari	9/12/2022	2056
css.types.basic-shape.polygon 📋	Chrome	8/26/2014	Firefox	6/13/2017	1022
css.types.basic-shape.rect 📋	Chrome	10/31/2023	Firefox	1/23/2024	84	Chrome: Only supported on the `offset-path` property.Chrome Android: Only supported on the `offset-path` property.Edge: Only supported on the `offset-path` property.Opera: Only supported on the `offset-path` property.Opera Android: Only supported on the `offset-path` property.Samsung Internet: Only supported on the `offset-path` property.WebView Android: Only supported on the `offset-path` property.
css.types.basic-shape.shape 📋	Safari	3/31/2025	Firefox	2/24/2026	330
css.types.basic-shape.xywh 📋	Chrome	10/31/2023	Firefox	1/23/2024	84	Chrome: Only supported on the `offset-path` property.Chrome Android: Only supported on the `offset-path` property.Edge: Only supported on the `offset-path` property.Opera: Only supported on the `offset-path` property.Opera Android: Only supported on the `offset-path` property.Samsung Internet: Only supported on the `offset-path` property.WebView Android: Only supported on the `offset-path` property.
css.types.blend-mode 📋	Chrome	5/20/2014	Safari	10/16/2014	149
css.types.calc 📋	Firefox	10/9/2012	Safari	10/22/2013	378	Firefox: Before Firefox 59 `calc()` is not supported in `rgb()` and other color functions.Firefox: Before Firefox 57 `calc(123)` is not parsed successfully.Firefox: Firefox 57 increased the number of places `calc()` could substitute another value. See bug 1350857.Firefox for Android: Before Firefox for Android 59 `calc()` is not supported in `rgb()` and other color functions.Firefox for Android: Before Firefox for Android 57 `calc(123)` is not parsed successfully.Firefox for Android: Firefox for Android 57 increased the number of places `calc()` could substitute another value. See bug 1350857.
css.types.calc.color_component	Safari	3/27/2023	Firefox	7/9/2024	470
css.types.calc.gradient_color_stops	Chrome	5/15/2012	Firefox	2/19/2013	280
css.types.calc.nested	Chrome	5/25/2016	Safari	9/19/2017	482
css.types.calc.number_values	Safari	7/25/2012	Firefox	8/2/2016	1469
css.types.calc-keyword 📋	Chrome	3/1/2022	Firefox	12/13/2022	287
css.types.calc-keyword.NaN	Chrome	3/1/2022	Firefox	6/6/2023	462
css.types.calc-keyword.e	Safari	3/14/2022	Chrome	2/7/2023	330
css.types.calc-keyword.infinity	Chrome	3/1/2022	Firefox	6/6/2023	462
css.types.calc-keyword.pi	Safari	3/14/2022	Chrome	1/10/2023	302
css.types.clamp 📋	Chrome	12/10/2019	Firefox	4/7/2020	119
css.types.color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.color.color 📋	Safari	9/20/2021	Firefox	5/9/2023	596	Safari: Only supports `display-p3` and `srgb` predefined color profiles.Safari on iOS: Only supports `display-p3` and `srgb` predefined color profiles.WebView on iOS: Only supports `display-p3` and `srgb` predefined color profiles.
css.types.color.color.colorSpace_parameter_accepts_display-p3-linear_value 📋	Firefox	12/9/2025	Chrome	1/13/2026	35
css.types.color.color.mixed_type_parameters	Safari	9/20/2021	Firefox	5/9/2023	596
css.types.color.color.relative_syntax 📋	Chrome	10/31/2023	Safari	9/16/2024	321	Safari: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (`%`).Safari on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (`%`).WebView on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (`%`).
css.types.color.color-mix 📋	Safari	12/13/2022	Firefox	5/9/2023	147
css.types.color.currentcolor 📋	Firefox	11/29/2005	Safari	6/8/2009	1287
css.types.color.hsl 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.types.color.hsl.alpha_parameter	Firefox	3/7/2017	Safari	3/25/2019	748
css.types.color.hsl.mixed_type_parameters	Chrome	1/23/2024	Safari	9/16/2024	237
css.types.color.hsl.relative_syntax 📋	Chrome	5/14/2024	Safari	9/16/2024	125	Chrome: `s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Chrome Android: `s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Edge: `s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Opera: `s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Opera Android: `s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Safari: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `s` and `l`).Safari on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `s` and `l`).Samsung Internet: `s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.WebView Android: `s` and `l` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `s` and `l` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.WebView on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `s` and `l`).
css.types.color.hsl.space_separated_parameters	Firefox	3/7/2017	Safari	3/25/2019	748
css.types.color.hwb 📋	Safari	9/20/2021	Chrome	4/26/2022	218
css.types.color.hwb.mixed_type_parameters	Chrome	1/23/2024	Safari	9/16/2024	237
css.types.color.hwb.relative_syntax 📋	Chrome	5/14/2024	Safari	9/16/2024	125	Chrome: `w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Chrome Android: `w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Edge: `w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Opera: `w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Opera Android: `w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.Safari: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `w` and `b`).Safari on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `w` and `b`).Samsung Internet: `w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.WebView Android: `w` and `b` channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require `w` and `b` values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%). See bug 330096624.WebView on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (`deg` for `h`, `%` for `w` and `b`).
css.types.color.lab 📋	Safari	9/20/2021	Firefox	5/9/2023	596
css.types.color.lab.mixed_type_parameters	Safari	12/13/2022	Chrome	8/15/2023	245
css.types.color.lab.relative_syntax 📋	Safari	3/27/2023	Firefox	7/9/2024	470
css.types.color.lch 📋	Safari	9/20/2021	Firefox	5/9/2023	596
css.types.color.lch.mixed_type_parameters	Safari	12/13/2022	Chrome	8/15/2023	245
css.types.color.lch.relative_syntax 📋	Chrome	10/31/2023	Safari	9/16/2024	321	Safari: Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`).Safari on iOS: Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`).WebView on iOS: Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`).
css.types.color.light-dark 📋	Firefox	11/21/2023	Safari	5/13/2024	174
css.types.color.named-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: Internet Explorer 8 and later support gray color keywords spelled with an e (`grey`, `darkgrey`, `darkslategrey`, `dimgrey`, `lightgrey`, and `lightslategrey`). Internet Explorer 3 to Internet Explorer 7 only support the keywords spelled with a (`gray`, `darkgray`, `darkslategray`, `dimgray`, `lightgray`, and `lightslategray`).
css.types.color.named-color.rebeccapurple	Chrome	10/7/2014	Safari	9/30/2015	358
css.types.color.named-color.transparent 📋	Safari	3/18/2008	Chrome	12/11/2008	268
css.types.color.oklab 📋	Safari	3/14/2022	Firefox	5/9/2023	421
css.types.color.oklab.mixed_type_parameters	Safari	12/13/2022	Chrome	8/15/2023	245
css.types.color.oklab.relative_syntax 📋	Safari	3/27/2023	Firefox	7/9/2024	470	Chrome: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Chrome Android: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Edge: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Opera: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Opera Android: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Samsung Internet: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.WebView Android: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.
css.types.color.oklch 📋	Safari	3/14/2022	Firefox	5/9/2023	421
css.types.color.oklch.mixed_type_parameters	Safari	12/13/2022	Chrome	8/15/2023	245
css.types.color.oklch.relative_syntax 📋	Chrome	2/20/2024	Safari	9/16/2024	209	Chrome: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Chrome Android: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Edge: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Opera: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Opera Android: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.Safari: Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`).Safari on iOS: Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`).Samsung Internet: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.WebView Android: `l` channel values incorrectly resolve to numbers between 0-100 rather than 0-1. As a result, channel value calculations require `l` values to be specified as percentage numbers without units (e.g. 20 for 0.2). See bug 40940488.WebView on iOS: Implementation based on older spec version. As a result, calculations with `h` channel values do not work correctly, requiring values to be specified with units (`deg`).
css.types.color.rgb 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.color.rgb.alpha_parameter	Firefox	3/7/2017	Safari	3/25/2019	748
css.types.color.rgb.float_values	Firefox	3/7/2017	Safari	3/25/2019	748
css.types.color.rgb.mixed_type_parameters	Firefox	5/9/2023	Safari	9/16/2024	496
css.types.color.rgb.relative_syntax 📋	Chrome	2/20/2024	Safari	9/16/2024	209	Chrome: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `<number>` value). See bug 41490327.Chrome Android: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `<number>` value). See bug 41490327.Edge: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `<number>` value). See bug 41490327.Opera: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `<number>` value). See bug 41490327.Opera Android: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `<number>` value). See bug 41490327.Safari: Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 `<number>` value). See bug 267647.Safari on iOS: Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 `<number>` value). See bug 267647.Samsung Internet: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `<number>` value). See bug 41490327.WebView Android: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 `<number>` value). See bug 41490327.WebView on iOS: Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 `<number>` value). See bug 267647.
css.types.color.rgb.space_separated_parameters	Firefox	3/7/2017	Safari	3/25/2019	748
css.types.color.rgb_hexadecimal_notation 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.color.rgb_hexadecimal_notation.alpha_hexadecimal_notation	Firefox	9/20/2016	Chrome	10/17/2017	392
css.types.color.system-color 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.color.system-color.accentcolor_accentcolortext 📋	Firefox	7/26/2022	Chrome	7/18/2023	357	Safari: Only supports a fallback: The native color when accent colour (in macOS' appearance panel) is set to 'multicolour'. On iOS falls back to the blue accent colourSafari on iOS: Only supports a fallback: The native color when accent colour (in macOS' appearance panel) is set to 'multicolour'. On iOS falls back to the blue accent colourWebView on iOS: Only supports a fallback: The native color when accent colour (in macOS' appearance panel) is set to 'multicolour'. On iOS falls back to the blue accent colour
css.types.color.transparent	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.cos 📋	Safari	3/14/2022	Chrome	3/7/2023	358
css.types.counter 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.types.counters 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
css.types.dimension 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.easing-function 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.types.easing-function.cubic-bezier 📋	Firefox	3/22/2011	Safari	7/25/2012	491
css.types.easing-function.linear-function 📋	Firefox	4/11/2023	Safari	12/11/2023	244
css.types.easing-function.steps 📋	Chrome	12/2/2010	Safari	7/20/2011	230
css.types.easing-function.steps.jump	Firefox	1/29/2019	Safari	9/16/2020	596
css.types.env 📋	Safari	4/12/2018	Firefox	1/29/2019	292
css.types.env.safe-area-inset-bottom 📋	Safari	9/19/2017	Firefox	1/29/2019	497
css.types.env.safe-area-inset-left 📋	Safari	9/19/2017	Firefox	1/29/2019	497
css.types.env.safe-area-inset-right 📋	Safari	9/19/2017	Firefox	1/29/2019	497
css.types.env.safe-area-inset-top 📋	Safari	9/19/2017	Firefox	1/29/2019	497
css.types.exp 📋	Safari	3/14/2022	Chrome	12/5/2023	631
css.types.filter-function 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.blur 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.brightness 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.contrast 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.drop-shadow 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.grayscale 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.hue-rotate 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.invert 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.opacity 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.saturate 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.filter-function.sepia 📋	Chrome	3/28/2012	Firefox	1/13/2015	1021
css.types.flex 📋	Chrome	8/20/2013	Safari	3/27/2017	1315
css.types.global_keywords	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.global_keywords.inherit 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.global_keywords.initial 📋	Safari	2/2/2004	Firefox	2/19/2013	3305
css.types.global_keywords.revert 📋	Safari	3/21/2016	Chrome	7/27/2020	1589
css.types.global_keywords.revert-layer 📋	Firefox	2/8/2022	Safari	3/14/2022	34
css.types.global_keywords.unset 📋	Firefox	2/4/2014	Safari	3/21/2016	776
css.types.gradient 📋	Firefox	1/21/2010	Safari	10/22/2013	1370	Firefox: Gradients are limited to `background-image`, `border-image`, and `mask-image`.Firefox for Android: Gradients are limited to `background-image`, `border-image`, and `mask-image`.
css.types.gradient.conic-gradient 📋	Chrome	9/4/2018	Firefox	11/17/2020	805
css.types.gradient.conic-gradient.doubleposition	Chrome	1/29/2019	Firefox	11/17/2020	658
css.types.gradient.conic-gradient.hue_interpolation_method	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.conic-gradient.interpolation_color_space	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.conic-gradient.single_color_stop 📋	Firefox	3/4/2025	Chrome	4/1/2025	28
css.types.gradient.linear-gradient 📋	Firefox	10/9/2012	Safari	10/22/2013	378	Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Firefox: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Firefox for Android: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Internet Explorer: Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: `-ms-filter: progid:DXImageTransform.Microsoft.Gradient()`.Opera: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Opera: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Opera Android: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Opera Android: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Safari: Safari 4 was supporting an experimental `-webkit-gradient(linear,…)` function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.Safari: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Safari on iOS: Safari on iOS 3.2 was supporting an experimental `-webkit-gradient(linear,…)` function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.WebView on iOS: WebView on iOS 3.2 was supporting an experimental `-webkit-gradient(linear,…)` function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.WebView on iOS: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.
css.types.gradient.linear-gradient.doubleposition	Chrome	12/4/2018	Safari	3/25/2019	111
css.types.gradient.linear-gradient.hue_interpolation_method	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.linear-gradient.interpolation_color_space	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.linear-gradient.interpolation_hints	Safari	10/22/2013	Firefox	2/24/2015	490
css.types.gradient.linear-gradient.premultiplied_gradients	Chrome	8/20/2013	Safari	9/20/2021	2953
css.types.gradient.linear-gradient.single_color_stop 📋	Firefox	3/4/2025	Chrome	4/1/2025	28
css.types.gradient.linear-gradient.to	Firefox	1/31/2012	Safari	10/22/2013	630
css.types.gradient.linear-gradient.unitless_0_angle	Chrome	3/26/2013	Firefox	8/8/2017	1596	Firefox: Accepted only in `-webkit-linear-gradient()` and `-moz-linear-gradient()`, not `linear-gradient()`.Firefox for Android: Accepted only in `-webkit-linear-gradient()` and `-moz-linear-gradient()`, not `linear-gradient()`.
css.types.gradient.radial-gradient 📋	Firefox	10/9/2012	Safari	10/22/2013	378	Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Internet Explorer: Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: `-ms-filter: progid:DXImageTransform.Microsoft.Gradient()`.Safari: Safari 4 was supporting an experimental `-webkit-gradient(radial,…)` function. This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Safari on iOS 3.2 was supporting an experimental `-webkit-gradient(radial,…)` function. This old outdated syntax is still supported for compatibility purposes.WebView on iOS: WebView on iOS 3.2 was supporting an experimental `-webkit-gradient(radial,…)` function. This old outdated syntax is still supported for compatibility purposes.
css.types.gradient.radial-gradient.at	Firefox	1/31/2012	Safari	10/22/2013	630
css.types.gradient.radial-gradient.doubleposition	Chrome	12/4/2018	Safari	3/25/2019	111
css.types.gradient.radial-gradient.hue_interpolation_method	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.radial-gradient.interpolation_color_space	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.radial-gradient.interpolation_hints	Safari	10/22/2013	Firefox	2/24/2015	490
css.types.gradient.radial-gradient.premultiplied_gradients	Chrome	8/20/2013	Safari	9/20/2021	2953
css.types.gradient.radial-gradient.single_color_stop 📋	Firefox	3/4/2025	Chrome	4/1/2025	28
css.types.gradient.repeating-conic-gradient 📋	Chrome	9/4/2018	Firefox	11/17/2020	805
css.types.gradient.repeating-conic-gradient.hue_interpolation_method	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.repeating-conic-gradient.interpolation_color_space	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.repeating-conic-gradient.single_color_stop 📋	Firefox	3/4/2025	Chrome	4/1/2025	28
css.types.gradient.repeating-linear-gradient 📋	Firefox	10/9/2012	Safari	10/22/2013	378	Firefox: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Firefox: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Firefox for Android: Before Firefox for Android 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Firefox for Android: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Internet Explorer: Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: `-ms-filter: progid:DXImageTransform.Microsoft.Gradient()`.Opera: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Opera: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Opera Android: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Opera Android: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Safari: Safari 4 was supporting an experimental `-webkit-gradient(linear,…)` function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `repeating-linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.Safari: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.Safari on iOS: Safari on iOS 3.2 was supporting an experimental `-webkit-gradient(linear,…)` function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `repeating-linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.WebView on iOS: WebView on iOS 3.2 was supporting an experimental `-webkit-gradient(linear,…)` function. It is more limited than the later standard version: you cannot specify both a position and an angle like in `repeating-linear-gradient()`. This old outdated syntax is still supported for compatibility purposes.WebView on iOS: Considers `<angle>` to start to the right, instead of the top. I.e. it considered an angle of `0deg` as a direction indicator pointing to the right.
css.types.gradient.repeating-linear-gradient.doubleposition	Chrome	12/4/2018	Safari	3/25/2019	111
css.types.gradient.repeating-linear-gradient.hue_interpolation_method	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.repeating-linear-gradient.interpolation_color_space	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.repeating-linear-gradient.interpolation_hints	Safari	10/22/2013	Firefox	2/24/2015	490
css.types.gradient.repeating-linear-gradient.single_color_stop 📋	Firefox	3/4/2025	Chrome	4/1/2025	28
css.types.gradient.repeating-linear-gradient.to	Firefox	1/31/2012	Safari	10/22/2013	630
css.types.gradient.repeating-linear-gradient.unitless_0_angle	Chrome	3/26/2013	Firefox	8/8/2017	1596	Firefox: Accepted only in `-webkit-repeating-linear-gradient()` and `-moz-repeating-linear-gradient()`, not `repeating-linear-gradient()`.Firefox for Android: Accepted only in `-webkit-repeating-linear-gradient()` and `-moz-repeating-linear-gradient()`, not `repeating-linear-gradient()`.
css.types.gradient.repeating-radial-gradient 📋	Firefox	10/9/2012	Safari	10/22/2013	378	Firefox: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Firefox for Android: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox for Android: Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Safari: Safari 4 was supporting an experimental `-webkit-gradient(radial,…)` function. This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Safari on iOS 3.2 was supporting an experimental `-webkit-gradient(radial,…)` function. This old outdated syntax is still supported for compatibility purposes.WebView on iOS: WebView on iOS 3.2 was supporting an experimental `-webkit-gradient(radial,…)` function. This old outdated syntax is still supported for compatibility purposes.
css.types.gradient.repeating-radial-gradient.at	Firefox	10/9/2012	Safari	10/22/2013	378	Firefox: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.Firefox for Android: Before Firefox for Android 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting `layout.css.prefixes.gradients` to `false`.
css.types.gradient.repeating-radial-gradient.doubleposition	Chrome	12/4/2018	Safari	3/25/2019	111
css.types.gradient.repeating-radial-gradient.hue_interpolation_method	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.repeating-radial-gradient.interpolation_color_space	Safari	12/13/2022	Firefox	6/11/2024	546
css.types.gradient.repeating-radial-gradient.interpolation_hints	Safari	10/22/2013	Firefox	2/24/2015	490
css.types.gradient.repeating-radial-gradient.single_color_stop 📋	Firefox	3/4/2025	Chrome	4/1/2025	28
css.types.hypot 📋	Safari	3/14/2022	Chrome	12/5/2023	631
css.types.image 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.image.image-set 📋	Firefox	6/1/2021	Safari	9/18/2023	839	Chrome: Support for `url` images only and `x` is the only supported resolution unit.Chrome Android: Support for `url` images only and `x` is the only supported resolution unit.Edge: Support for `url` images only and `x` is the only supported resolution unit.Firefox: The `type()` function is not supported as an argument to `image-set()`.Firefox for Android: The `type()` function is not supported as an argument to `image-set()`.Quest Browser: Support for `url` images only and `x` is the only supported resolution unit.Opera: Support for `url` images only and `x` is the only supported resolution unit.Opera Android: Support for `url` images only and `x` is the only supported resolution unit.Safari: The `type()` function is not supported as an argument to `image-set()`.Safari: The `type()` function is not supported as an argument to `image-set()`.Safari: Support for `url` images only and `x` is the only supported resolution unit.Safari: Support for `url` images only and `x` is the only supported resolution unit.Safari on iOS: The `type()` function is not supported as an argument to `image-set()`.Safari on iOS: The `type()` function is not supported as an argument to `image-set()`.Safari on iOS: Support for `url` images only and `x` is the only supported resolution unit.Safari on iOS: Support for `url` images only and `x` is the only supported resolution unit.Samsung Internet: Support for `url` images only and `x` is the only supported resolution unit.WebView Android: Support for `url` images only and `x` is the only supported resolution unit.WebView on iOS: The `type()` function is not supported as an argument to `image-set()`.WebView on iOS: The `type()` function is not supported as an argument to `image-set()`.WebView on iOS: Support for `url` images only and `x` is the only supported resolution unit.WebView on iOS: Support for `url` images only and `x` is the only supported resolution unit.
css.types.integer 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.length 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.length.Q	Firefox	9/20/2016	Safari	3/24/2020	1281
css.types.length.cap	Firefox	2/8/2022	Safari	12/11/2023	671
css.types.length.ch	Firefox	11/9/2004	Safari	10/22/2013	3269	Firefox: From Firefox 1 to Firefox 3, `ch` was the width of the M character.Firefox: From Firefox 1 to Firefox 3, `ch` did not work with `border-width` and `outline-width` CSS properties.
css.types.length.container_query_length_units	Chrome	9/2/2022	Firefox	2/14/2023	165
css.types.length.em	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.length.ex	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.length.ic	Firefox	2/8/2022	Chrome	9/27/2022	231
css.types.length.lh 📋	Chrome	1/10/2023	Firefox	11/21/2023	315
css.types.length.rcap 📋	Chrome	10/10/2023	Firefox	1/13/2026	826
css.types.length.rch 📋	Chrome	3/7/2023	Firefox	1/13/2026	1043
css.types.length.rem	Firefox	1/21/2010	Safari	6/7/2010	137
css.types.length.rex 📋	Chrome	3/7/2023	Firefox	1/13/2026	1043
css.types.length.ric 📋	Chrome	3/7/2023	Firefox	1/13/2026	1043
css.types.length.rlh 📋	Chrome	3/7/2023	Firefox	11/21/2023	259
css.types.length.vb	Safari	3/14/2022	Chrome	11/29/2022	260
css.types.length.vh	Chrome	6/26/2012	Firefox	2/19/2013	238	Firefox: Starting with version 21, viewport-percentage lengths are invalid in `@page`.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in `@page`.
css.types.length.vi	Safari	3/14/2022	Chrome	11/29/2022	260
css.types.length.viewport_percentage_units_dynamic	Safari	3/14/2022	Chrome	11/29/2022	260
css.types.length.viewport_percentage_units_large	Safari	3/14/2022	Chrome	11/29/2022	260
css.types.length.viewport_percentage_units_small	Safari	3/14/2022	Chrome	11/29/2022	260
css.types.length.vmax	Firefox	2/19/2013	Safari	10/22/2013	245	Firefox: Starting with version 21, viewport-percentage lengths are invalid in `@page`.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in `@page`.
css.types.length.vmin	Firefox	2/19/2013	Safari	10/22/2013	245	Firefox: Starting with version 21, viewport-percentage lengths are invalid in `@page`.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in `@page`.
css.types.length.vw	Chrome	6/26/2012	Firefox	2/19/2013	238	Firefox: Starting with version 21, viewport-percentage lengths are invalid in `@page`.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in `@page`.
css.types.length-percentage 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.line-style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.log 📋	Safari	3/14/2022	Chrome	12/5/2023	631
css.types.max 📋	Safari	4/12/2018	Firefox	4/7/2020	726
css.types.min 📋	Safari	4/12/2018	Firefox	4/7/2020	726
css.types.mod 📋	Safari	3/14/2022	Chrome	5/14/2024	792
css.types.mod.mixed_type_parameters 📋	Firefox	9/26/2023	Chrome	5/14/2024	231
css.types.number 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.number.scientific_notation	Firefox	4/29/2014	Safari	3/27/2017	1063
css.types.overflow 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Internet Explorer: From version 4 to 6, Internet Explorer enlarges an element with `visible` (default value) to fit the content inside it.
css.types.overflow.clip	Firefox	9/22/2020	Safari	9/12/2022	720
css.types.overflow.overlay	Safari	9/17/2018	Chrome	5/30/2023	1716	Chrome: Before version 114, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard `auto` keyword. See bug 40444262.Chrome Android: Before version 114, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard `auto` keyword. See bug 40444262.Edge: Before version 114, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard `auto` keyword. See bug 40444262.Quest Browser: Before version false, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version false, the keyword aliases to the standard `auto` keyword. See bug 40444262.Opera: Before version 100, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 100, the keyword aliases to the standard `auto` keyword. See bug 40444262.Safari: Before version 12, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 12, the keyword aliases to the standard `auto` keyword. See bug 189811.Safari on iOS: Before version 12, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 12, the keyword aliases to the standard `auto` keyword. See bug 189811.WebView Android: Before version 114, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard `auto` keyword. See bug 40444262.WebView on iOS: Before version 12, the `overlay` keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 12, the keyword aliases to the standard `auto` keyword. See bug 189811.
css.types.percentage 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.position 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.position.four_value_syntax	Firefox	6/5/2012	Safari	10/22/2013	504
css.types.position.keyword_value_syntax	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.pow 📋	Safari	3/14/2022	Chrome	12/5/2023	631
css.types.ratio 📋	Firefox	6/30/2009	Safari	6/7/2010	342
css.types.ray 📋	Safari	9/12/2022	Firefox	1/23/2024	498
css.types.ray.position	Chrome	8/15/2023	Firefox	1/23/2024	161
css.types.ray.size	Chrome	8/15/2023	Firefox	1/23/2024	161
css.types.rem 📋	Safari	3/14/2022	Chrome	5/14/2024	792
css.types.rem.mixed_type_parameters 📋	Firefox	9/26/2023	Chrome	5/14/2024	231
css.types.resolution 📋	Firefox	11/8/2011	Safari	9/12/2022	3961	Firefox: Supports `<integer>` values only.Firefox for Android: Supports `<integer>` values only.
css.types.resolution.dpcm	Firefox	11/8/2011	Safari	9/12/2022	3961
css.types.resolution.dpi	Firefox	11/8/2011	Safari	9/12/2022	3961
css.types.resolution.dppx	Firefox	10/9/2012	Safari	9/12/2022	3625
css.types.resolution.x	Chrome	7/24/2018	Safari	9/12/2022	1511
css.types.round 📋	Safari	3/14/2022	Chrome	5/14/2024	792
css.types.round.mixed_type_parameters 📋	Firefox	9/26/2023	Chrome	5/14/2024	231
css.types.shape 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
css.types.shape.rect	Firefox	11/9/2004	Chrome	12/11/2008	1493	Internet Explorer: For Internet Explorer versions 5.5 through 7, the `rect()` function uses spaces (instead of commas) to separate parameters. For Internet Explorer 8 and later versions, only the standard comma-separated syntax is supported.
css.types.sign 📋	Safari	3/14/2022	Chrome	6/24/2025	1198
css.types.sin 📋	Safari	3/14/2022	Chrome	3/7/2023	358
css.types.sqrt 📋	Safari	3/14/2022	Chrome	12/5/2023	631
css.types.string 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.string.unicode_escaped_characters	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.tan 📋	Safari	3/14/2022	Chrome	3/7/2023	358
css.types.time 📋	Safari	3/18/2008	Firefox	3/22/2011	1099
css.types.transform-function 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Internet Explorer: Internet Explorer 9 supports 2D but not 3D transforms. In version 9, mixing 2D and 3D transform functions invalidates the entire property.
css.types.transform-function.matrix 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Firefox: Before Firefox 16, the translation values of `matrix()` could be `<length>`s, in addition to the standard `<number>`.
css.types.transform-function.matrix3d 📋	Safari	6/8/2009	Firefox	1/31/2012	967	Firefox: Before Firefox 16, the translation values of `matrix3d()` could be `<length>`s, in addition to the standard `<number>`.
css.types.transform-function.perspective 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.perspective.none 📋	Firefox	10/5/2021	Safari	3/14/2022	160
css.types.transform-function.rotate 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.rotate3d 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.rotateX 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.rotateY 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.rotateZ 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.scale 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.scale3d 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.scaleX 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.scaleY 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.scaleZ 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.skew 📋	Safari	3/18/2008	Firefox	6/30/2009	469	Firefox: Firefox 14 removed experimental support for `skew()`, but it was reintroduced in Firefox 15.
css.types.transform-function.skewX 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.skewY 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.translate 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.translate3d 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.transform-function.translateX 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.translateY 📋	Safari	3/18/2008	Firefox	6/30/2009	469
css.types.transform-function.translateZ 📋	Safari	6/8/2009	Firefox	1/31/2012	967
css.types.url 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
css.types.var 📋	Firefox	7/22/2014	Safari	3/21/2016	608

HTML Data

API	First Browser	Date	Last Browser	Date	Days	Notes
html.elements.a 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Starting with Firefox 41, <a> without `href` attribute is no longer classified as interactive content: clicking it inside <label> will activate labelled content (bug 1167816).Firefox for Android: Starting with Firefox for Android 41, <a> without `href` attribute is no longer classified as interactive content: clicking it inside <label> will activate labelled content (bug 1167816).
html.elements.a.charset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.a.download 📋	Chrome	9/16/2011	Safari	3/27/2017	2019	Chrome: Starting in Chrome 65, cross-origin downloads are not supported on the `<a>` element.Chrome Android: Starting in Chrome Android 65, cross-origin downloads are not supported on the `<a>` element.Edge: Starting in Edge 79, cross-origin downloads are not supported on the `<a>` element.Edge: Until Edge 14 (build 14357), attempting to download data URIs caused Edge to crash (bug 7160092).Edge: Edge 17 or older didn't follow the attributes' value to determine filename (bug 7260192).Firefox for Android: The attribute's filename value only affects the suggested file name for the `blob:` and `data:` URI schemes. Other schemes ignore the suggested filename. See bug 1845642.Quest Browser: Starting in Quest Browser 5.0, cross-origin downloads are not supported on the `<a>` element.Opera: Starting in Opera 52, cross-origin downloads are not supported on the `<a>` element.Opera Android: Starting in Opera Android 47, cross-origin downloads are not supported on the `<a>` element.Samsung Internet: Starting in Samsung Internet 9.0, cross-origin downloads are not supported on the `<a>` element.WebView Android: Starting in WebView Android 65, cross-origin downloads are not supported on the `<a>` element.
html.elements.a.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.a.href.href_top	Chrome	12/11/2008	Firefox	1/31/2012	1146
html.elements.a.hreflang 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.a.implicit_noopener	Safari	3/25/2019	Chrome	1/19/2021	666
html.elements.a.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.a.ping 📋	Firefox	11/9/2004	Safari	7/25/2012	2815	Firefox: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.Firefox for Android: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.
html.elements.a.referrerpolicy 📋	Chrome	5/25/2016	Safari	9/16/2020	1575
html.elements.a.rel 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.a.rel.noopener 📋	Chrome	3/2/2016	Safari	3/27/2017	390	Firefox: Before Firefox 63, `rel="noopener"` created windows with all features disabled by default. Starting with Firefox 63, these windows have the same features enabled by default as any other window.Firefox for Android: Before Firefox for Android 63, `rel="noopener"` created windows with all features disabled by default. Starting with Firefox for Android 63, these windows have the same features enabled by default as any other window.
html.elements.a.rel.noreferrer 📋	Safari	6/7/2010	Firefox	10/14/2014	1590	Internet Explorer: Only supported in IE11 in later versions of Windows 10 (creators update). (Per caniuse.com.)
html.elements.a.rev 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.a.target 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.a.text_fragments	Chrome	2/4/2020	Firefox	10/1/2024	1701
html.elements.a.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.abbr 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.acronym 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.address 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.area 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.area.alt 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.area.coords 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.area.download 📋	Firefox	4/2/2013	Safari	3/27/2017	1455
html.elements.area.href 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.area.implicit_noopener	Safari	3/25/2019	Chrome	1/19/2021	666
html.elements.area.nohref 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.area.ping 📋	Firefox	11/9/2004	Safari	7/25/2012	2815	Firefox: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.Firefox for Android: This property is exposed but has no effect if the `browser.send_pings` preference is not set to `true`. See bug 951104.
html.elements.area.referrerpolicy 📋	Chrome	5/25/2016	Safari	9/16/2020	1575
html.elements.area.rel 📋	Safari	6/7/2010	Firefox	6/10/2014	1464
html.elements.area.rel.noopener 📋	Chrome	3/2/2016	Safari	3/27/2017	390	Firefox: Before Firefox 63, `rel="noopener"` created windows with all features disabled by default. Starting with Firefox 63, these windows have the same features enabled by default as any other window.Firefox for Android: Before Firefox for Android 63, `rel="noopener"` created windows with all features disabled by default. Starting with Firefox for Android 63, these windows have the same features enabled by default as any other window.
html.elements.area.rel.noreferrer 📋	Safari	6/7/2010	Firefox	10/14/2014	1590	Internet Explorer: Only supported in IE11 in later versions of Windows 10 (creators update). (Per caniuse.com.)
html.elements.area.shape 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.area.target 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.article 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.aside 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.audio 📋	Safari	3/18/2008	Chrome	9/15/2009	546	Firefox: For Firefox to play audio, the server must serve the file using the correct MIME type.Firefox for Android: For Firefox for Android to play audio, the server must serve the file using the correct MIME type.
html.elements.audio.controls 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.audio.crossorigin 📋	Chrome	2/20/2014	Firefox	3/10/2020	2210	Firefox: With `crossorigin="use-credentials"`, cookies aren't sent during seek. See bug 1532722.Firefox for Android: With `crossorigin="use-credentials"`, cookies aren't sent during seek. See bug 1532722.
html.elements.audio.loop 📋	Safari	3/18/2008	Firefox	3/13/2012	1456
html.elements.audio.muted 📋	Chrome	10/25/2011	Safari	7/25/2012	274
html.elements.audio.preload 📋	Safari	3/18/2008	Firefox	3/22/2011	1099	Chrome: Defaults to `metadata` in Chrome 64.Chrome Android: Defaults to `metadata` in Chrome Android 64.Quest Browser: Defaults to `metadata` in Quest Browser 5.0.Opera: Defaults to `metadata` in Opera 51.Opera Android: Defaults to `metadata` in Opera 51.Samsung Internet: Defaults to `metadata` in Samsung Internet 9.0.WebView Android: Defaults to `metadata` in Chrome 64.
html.elements.audio.src 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.b 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.base 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Internet Explorer: Before Internet Explorer 7, `<base>` can be positioned anywhere in the document and the nearest value of `<base>` is used.
html.elements.base.href 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.base.href.forbid_data_javascript_urls	Chrome	4/19/2017	Firefox	6/11/2024	2610
html.elements.base.href.relative_url	Safari	10/26/2007	Firefox	3/22/2011	1243
html.elements.base.target 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.bdi 📋	Chrome	12/13/2011	Safari	7/25/2012	225
html.elements.bdo 📋	Safari	6/8/2009	Firefox	1/31/2012	967
html.elements.big 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.blockquote 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.blockquote.cite	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.body 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.body.alink	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.body.background	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.body.bgcolor	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.body.bottommargin	Chrome	12/11/2008	Firefox	1/13/2015	2224	Firefox: Before Firefox 35, it was supported in Quirks Mode only.Firefox for Android: Before Firefox for Android 35, it was supported in Quirks Mode only.
html.elements.body.leftmargin	Chrome	12/11/2008	Firefox	1/13/2015	2224	Firefox: Before Firefox 35, it was supported in Quirks Mode only.Firefox for Android: Before Firefox for Android 35, it was supported in Quirks Mode only.
html.elements.body.link	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.body.rightmargin	Chrome	12/11/2008	Firefox	1/13/2015	2224	Firefox: Before Firefox 35, it was supported in Quirks Mode only.Firefox for Android: Before Firefox for Android 35, it was supported in Quirks Mode only.
html.elements.body.text	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.body.topmargin	Chrome	12/11/2008	Firefox	1/13/2015	2224	Firefox: Before Firefox 35, it was supported in Quirks Mode only.Firefox for Android: Before Firefox for Android 35, it was supported in Quirks Mode only.
html.elements.body.vlink	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.br 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.br.clear	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.button 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.button.command 📋	Chrome	4/1/2025	Safari	12/12/2025	255
html.elements.button.command.request-close 📋	Chrome	8/5/2025	Safari	12/12/2025	129
html.elements.button.commandfor 📋	Chrome	4/1/2025	Safari	12/12/2025	255
html.elements.button.commandfor.implicit_anchor_reference 📋	Chrome	4/1/2025	Firefox	1/13/2026	287
html.elements.button.disabled 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.button.form	Chrome	2/3/2011	Safari	7/20/2011	167
html.elements.button.formaction	Chrome	2/3/2011	Safari	7/20/2011	167
html.elements.button.formenctype	Chrome	2/3/2011	Safari	7/20/2011	167
html.elements.button.formmethod	Chrome	2/3/2011	Safari	7/20/2011	167
html.elements.button.formnovalidate	Chrome	2/3/2011	Safari	7/20/2011	167
html.elements.button.formtarget	Chrome	2/3/2011	Safari	7/20/2011	167
html.elements.button.name	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.button.popovertarget 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
html.elements.button.popovertarget.implicit_anchor_reference 📋	Chrome	2/4/2025	Firefox	1/13/2026	343
html.elements.button.popovertargetaction 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
html.elements.button.type	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.button.value	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.canvas 📋	Safari	4/29/2005	Chrome	12/11/2008	1322	Firefox: Before Firefox 5, the canvas width and height were signed integers instead of unsigned integers.Firefox: Before Firefox 6, a <canvas> element with a zero width or height would be rendered as if it had default dimensions.Firefox: Before Firefox 12, if JavaScript is disabled, the <canvas> element was being rendered instead of showing the fallback content as per the specification. Since then, the fallback content is rendered instead.Firefox for Android: Before Firefox for Android 5, the canvas width and height were signed integers instead of unsigned integers.Firefox for Android: Before Firefox for Android 6, a <canvas> element with a zero width or height would be rendered as if it had default dimensions.Firefox for Android: Before Firefox for Android 14, if JavaScript is disabled, the <canvas> element was being rendered instead of showing the fallback content as per the specification. Since then, the fallback content is rendered instead.Safari: Although early versions of Apple's Safari browser don't require the closing tag, the specification indicates that it is required, so you should be sure to include it for broadest compatibility. Before version 2, Safari will render the content of the fallback in addition to the canvas itself unless you use CSS tricks to mask it.
html.elements.canvas.height 📋	Safari	4/29/2005	Chrome	12/11/2008	1322	Firefox: Before Firefox 5, the canvas width and height were signed integers instead of unsigned integers.Firefox: Before Firefox 6, a <canvas> element with a zero width or height would be rendered as if it had default dimensions.Firefox: Before Firefox 12, if JavaScript is disabled, the <canvas> element was being rendered instead of showing the fallback content as per the specification. Since then, the fallback content is rendered instead.Firefox for Android: Before Firefox for Android 5, the canvas width and height were signed integers instead of unsigned integers.Firefox for Android: Before Firefox for Android 6, a <canvas> element with a zero width or height would be rendered as if it had default dimensions.Firefox for Android: Before Firefox for Android 14, if JavaScript is disabled, the <canvas> element was being rendered instead of showing the fallback content as per the specification. Since then, the fallback content is rendered instead.Safari: Although early versions of Apple's Safari browser don't require the closing tag, the specification indicates that it is required, so you should be sure to include it for broadest compatibility. Before version 2, Safari will render the content of the fallback in addition to the canvas itself unless you use CSS tricks to mask it.
html.elements.canvas.width 📋	Safari	4/29/2005	Chrome	12/11/2008	1322	Firefox: Before Firefox 5, the canvas width and height were signed integers instead of unsigned integers.Firefox: Before Firefox 6, a <canvas> element with a zero width or height would be rendered as if it had default dimensions.Firefox: Before Firefox 12, if JavaScript is disabled, the <canvas> element was being rendered instead of showing the fallback content as per the specification. Since then, the fallback content is rendered instead.Firefox for Android: Before Firefox for Android 5, the canvas width and height were signed integers instead of unsigned integers.Firefox for Android: Before Firefox for Android 6, a <canvas> element with a zero width or height would be rendered as if it had default dimensions.Firefox for Android: Before Firefox for Android 14, if JavaScript is disabled, the <canvas> element was being rendered instead of showing the fallback content as per the specification. Since then, the fallback content is rendered instead.Safari: Although early versions of Apple's Safari browser don't require the closing tag, the specification indicates that it is required, so you should be sure to include it for broadest compatibility. Before version 2, Safari will render the content of the fallback in addition to the canvas itself unless you use CSS tricks to mask it.
html.elements.caption 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.caption.align	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.center 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.Firefox for Android: Before Firefox for Android 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.cite 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.code 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.col 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.col.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.col.span 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.col.valign 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.col.width 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.colgroup 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.colgroup.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.colgroup.span 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.colgroup.valign 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.colgroup.width 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.data 📋	Firefox	6/25/2013	Chrome	10/17/2017	1575
html.elements.data.value 📋	Firefox	6/25/2013	Chrome	10/17/2017	1575
html.elements.datalist 📋	Firefox	3/22/2011	Safari	3/25/2019	2925	Firefox for Android: The dropdown menu containing available options does not appear. See bug 1535985.
html.elements.datalist.input_type_email 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.datalist.input_type_number 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.datalist.input_type_range 📋	Chrome	6/26/2012	Firefox	2/14/2023	3885
html.elements.datalist.input_type_search 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.datalist.input_type_tel 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.datalist.input_type_text 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.datalist.input_type_url 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.dd 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, this element was implemented using the `HTMLSpanElement` interface instead of `HTMLElement`.
html.elements.del 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.del.cite	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.del.datetime	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.details 📋	Chrome	6/7/2011	Firefox	9/20/2016	1932	Firefox: Before Firefox 57, there was a bug meaning that `<details>` elements can't be made open by default using the `open` attribute if they have a CSS `animation` active on them.Firefox for Android: There is a bug meaning that `<details>` elements can't be made open by default using the `open` attribute if they have a CSS `animation` active on them.
html.elements.details.name	Chrome	12/5/2023	Firefox	9/3/2024	273
html.elements.details.open	Chrome	6/7/2011	Firefox	9/20/2016	1932
html.elements.details.search_match_opens	Chrome	1/4/2022	Firefox	2/24/2026	1512	Firefox: The browser does not correctly scroll to the matching text. See bug 2006040.Firefox for Android: The browser does not correctly scroll to the matching text. See bug 2006040.Safari: The browser does not correctly scroll to the matching text. See bug 304174.Safari on iOS: The browser does not correctly scroll to the matching text. See bug 304174.WebView on iOS: The browser does not correctly scroll to the matching text. See bug 304174.
html.elements.dfn 📋	Firefox	11/9/2004	Safari	7/25/2012	2815
html.elements.dialog 📋	Chrome	8/26/2014	Safari	3/14/2022	2757
html.elements.dialog.open	Chrome	8/26/2014	Safari	3/14/2022	2757
html.elements.dir 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.dir.compact	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.div 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.div.align	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.dl 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.dt 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.em 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.embed 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.embed.align 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.embed.height 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.embed.name 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.embed.src 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.embed.type 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.embed.width 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.fieldset 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: Before version 86, this element did not support `flexbox` and `grid` layouts within this element. See bug 41027853.Chrome Android: Before version 86, this element did not support `flexbox` and `grid` layouts within this element. See bug 41027853.Edge: Before version 86, this element did not support `flexbox` and `grid` layouts within this element. See bug 4511145.Quest Browser: Before version 12.0, this element did not support `flexbox` and `grid` layouts within this element. See bug 41027853.Samsung Internet: Before version 14.0, this element did not support `flexbox` and `grid` layouts within this element. See bug 41027853.WebView Android: Before version 86, this element did not support `flexbox` and `grid` layouts within this element. See bug 41027853.
html.elements.fieldset.disabled 📋	Firefox	3/22/2011	Safari	7/25/2012	491	Edge: Does not work with nested fieldsets. For example: `<fieldset disabled><fieldset><!--Still enabled--></fieldset></fieldset>`Internet Explorer: Not all form control descendants of a disabled fieldset are properly disabled in IE11; see IE bug 817488: input[type='file'] not disabled inside disabled fieldset and IE bug 962368: Can still edit input[type='text'] within fieldset[disabled].
html.elements.fieldset.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.fieldset.name 📋	Firefox	3/22/2011	Safari	7/25/2012	491
html.elements.figcaption 📋	Chrome	12/2/2010	Safari	7/20/2011	230
html.elements.figure 📋	Chrome	12/2/2010	Safari	7/20/2011	230
html.elements.font 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.font.color	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.font.face	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.font.size	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.footer 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.form.accept-charset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.form.action 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.form.autocomplete 📋	Firefox	3/22/2011	Safari	7/25/2012	491	Chrome: The Google Chrome UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `<input>` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `<input>` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `<input>` element, Chrome might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `<input>` that has custom auto-completion.Chrome Android: The Chrome Android UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `<input>` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `<input>` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `<input>` element, Chrome Android might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `<input>` that has custom auto-completion.Quest Browser: The Quest Browser UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `<input>` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `<input>` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `<input>` element, Quest Browser might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `<input>` that has custom auto-completion.Opera: The Opera UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `<input>` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `<input>` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `<input>` element, Opera might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `<input>` that has custom auto-completion.Opera Android: The Opera Android UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `<input>` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `<input>` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `<input>` element, Opera Android might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `<input>` that has custom auto-completion.Samsung Internet: The Samsung Internet UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `<input>` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `<input>` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `<input>` element, Samsung Internet might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `<input>` that has custom auto-completion.WebView Android: The WebView Android UI for auto-complete request varies, depending on whether `autocomplete` is set to `off` on `<input>` elements as well as their form. Specifically, when a form has `autocomplete` set to `off` and its `<input>` element's `autocomplete` attribute is not set, then if the user asks for autofill suggestions for the `<input>` element, WebView Android might display a message saying 'autocomplete has been disabled for this form.' On the other hand, if both the form and the input element have `autocomplete` set to `off`, the browser will not display that message. For this reason, you should set `autocomplete` to `off` for each `<input>` that has custom auto-completion.
html.elements.form.autocomplete.one-time-code	Safari	9/17/2018	Firefox	1/17/2023	1583
html.elements.form.autocomplete.webauthn 📋	Chrome	11/29/2022	Firefox	1/23/2024	420
html.elements.form.enctype 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.form.method 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.form.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.form.novalidate 📋	Chrome	3/8/2011	Safari	3/27/2017	2211
html.elements.form.rel 📋	Safari	3/14/2022	Firefox	3/14/2023	365
html.elements.form.target 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame.frameborder	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame.marginheight	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame.marginwidth	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame.name	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame.noresize	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame.scrolling	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frame.src	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frameset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frameset.cols	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.frameset.rows	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.h1 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.h2 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.h3 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.h4 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.h5 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.h6 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.head 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.header 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.hgroup 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.hr 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.hr.align	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.hr.color	Firefox	11/9/2004	Safari	3/27/2017	4521
html.elements.hr.hr_in_select	Safari	9/18/2023	Firefox	1/23/2024	127	Chrome: Exposes the `<hr>` visually in the page only when the menu is expanded (arrowing within the collapsed menu does not show them).Chrome: Does not expose the `<hr>` in the accessibility tree.Edge: Exposes the `<hr>` visually in the page only when the menu is expanded (arrowing within the collapsed menu does not show them).Edge: Does not expose the `<hr>` in the accessibility tree.Firefox: Does not expose the `<hr>` in the accessibility tree.Opera: Exposes the `<hr>` visually in the page only when the menu is expanded (arrowing within the collapsed menu does not show them).Opera: Does not expose the `<hr>` in the accessibility tree.Safari: Does not expose the `<hr>` in the accessibility tree.Safari on iOS: Does not expose the `<hr>` in the accessibility tree.WebView on iOS: Does not expose the `<hr>` in the accessibility tree.
html.elements.hr.noshade	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.hr.size	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.hr.width	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.html 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.html.version 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.html.xmlns	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.i 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.iframe 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: The `resize` CSS property doesn't have any effect on this element due to bug 680823.Firefox for Android: The `resize` CSS property doesn't have any effect on this element due to bug 680823.Safari: Safari has a bug that prevents iframes from loading if the `iframe` element was hidden when added to the page. `iframeElement.src = iframeElement.src` should cause it to load the iframe.Safari on iOS: Safari on iOS has a bug that prevents iframes from loading if the `iframe` element was hidden when added to the page. `iframeElement.src = iframeElement.src` should cause it to load the iframe.WebView on iOS: WebView on iOS has a bug that prevents iframes from loading if the `iframe` element was hidden when added to the page. `iframeElement.src = iframeElement.src` should cause it to load the iframe.
html.elements.iframe.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.allow 📋	Chrome	7/25/2017	Firefox	3/10/2020	959
html.elements.iframe.allow.camera 📋	Chrome	1/23/2018	Firefox	3/10/2020	777
html.elements.iframe.allow.display-capture 📋	Safari	9/19/2019	Chrome	9/21/2021	733
html.elements.iframe.allow.microphone 📋	Chrome	1/23/2018	Firefox	3/10/2020	777
html.elements.iframe.allow.screen-wake-lock 📋	Chrome	7/27/2020	Firefox	5/14/2024	1387
html.elements.iframe.allowfullscreen 📋	Firefox	1/8/2013	Safari	3/27/2017	1539	Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.
html.elements.iframe.cross-origin-top-navigation-by-user-activation	Chrome	7/24/2018	Firefox	10/14/2025	2639	Chrome: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Chrome Android: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Edge: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Firefox: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Firefox for Android: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Quest Browser: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Opera: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Opera Android: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.Safari: If a top-navigation is blocked, no redirect occurs, and an error is reported in the developer console.Safari on iOS: If a top-navigation is blocked, no redirect occurs, and an error is reported in the developer console.Samsung Internet: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.WebView Android: If a top-navigation is blocked, users are prompted for permission to redirect, and an error is reported in the developer console.WebView on iOS: If a top-navigation is blocked, no redirect occurs, and an error is reported in the developer console.
html.elements.iframe.frameborder 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.loading 📋	Chrome	9/10/2019	Firefox	12/19/2023	1561
html.elements.iframe.longdesc 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.marginheight 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.marginwidth 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.referrerpolicy 📋	Chrome	5/25/2016	Safari	9/16/2020	1575
html.elements.iframe.sandbox 📋	Chrome	5/25/2010	Firefox	11/20/2012	910
html.elements.iframe.sandbox.allow-downloads 📋	Chrome	5/19/2020	Safari	9/18/2023	1217
html.elements.iframe.sandbox.allow-forms 📋	Chrome	5/25/2010	Firefox	9/20/2016	2310
html.elements.iframe.sandbox.allow-modals 📋	Chrome	10/13/2015	Safari	4/12/2018	912
html.elements.iframe.sandbox.allow-pointer-lock 📋	Chrome	11/6/2012	Safari	3/27/2017	1602
html.elements.iframe.sandbox.allow-popups 📋	Chrome	2/8/2012	Firefox	3/18/2014	769
html.elements.iframe.sandbox.allow-popups-to-escape-sandbox 📋	Chrome	10/13/2015	Safari	4/12/2018	912
html.elements.iframe.sandbox.allow-same-origin 📋	Chrome	5/25/2010	Firefox	9/20/2016	2310	Chrome: Chrome 70 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Chrome Android: Chrome Android 70 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Edge: Edge 79 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Quest Browser: Quest Browser 6.0 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Opera: Opera 57 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Opera Android: Opera Android 49 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Safari: Safari blocks script execution without `allow-scripts` even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Safari on iOS: Safari blocks script execution without `allow-scripts` even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.Samsung Internet: Samsung Internet 10.0 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.WebView Android: WebView Android 70 and earlier block script execution without `allow-scripts`, even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.WebView on iOS: Safari blocks script execution without `allow-scripts` even if `allow-same-origin` is set. For example, any bound handlers for click events of nodes inside an iframe throw an error for blocked script execution.
html.elements.iframe.sandbox.allow-scripts 📋	Chrome	5/25/2010	Firefox	9/20/2016	2310
html.elements.iframe.sandbox.allow-storage-access-by-user-activation	Safari	4/12/2018	Chrome	5/2/2023	1846
html.elements.iframe.sandbox.allow-top-navigation 📋	Safari	6/7/2010	Firefox	9/20/2016	2297
html.elements.iframe.sandbox.allow-top-navigation-by-user-activation 📋	Chrome	4/19/2017	Firefox	7/28/2020	1196
html.elements.iframe.scrolling 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.iframe.src 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.iframe.srcdoc 📋	Chrome	6/26/2012	Firefox	10/29/2013	490
html.elements.iframe.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.img.align 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.alt 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.aspect_ratio_computed_from_attributes	Chrome	12/10/2019	Safari	9/20/2021	650	Safari: Safari doesn't preserve space for images without a valid `src`, which may disrupt layouts that rely on lazy loading (see bug 224197).Safari on iOS: Safari on iOS doesn't preserve space for images without a valid `src`, which may disrupt layouts that rely on lazy loading (see bug 224197).WebView on iOS: WebView on iOS doesn't preserve space for images without a valid `src`, which may disrupt layouts that rely on lazy loading (see bug 224197).
html.elements.img.border 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.crossorigin 📋	Chrome	8/2/2011	Safari	7/25/2012	358
html.elements.img.decoding 📋	Chrome	3/6/2018	Firefox	10/23/2018	231
html.elements.img.fetchpriority 📋	Chrome	4/26/2022	Firefox	10/29/2024	917
html.elements.img.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.hspace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.ismap 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.loading 📋	Chrome	9/10/2019	Safari	3/14/2022	916
html.elements.img.longdesc 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.referrerpolicy 📋	Chrome	5/25/2016	Safari	9/16/2020	1575
html.elements.img.sizes 📋	Chrome	10/7/2014	Safari	3/21/2016	531
html.elements.img.src 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.img.srcset 📋	Chrome	4/8/2014	Firefox	5/12/2015	399
html.elements.img.usemap 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.usemap.case_sensitive	Firefox	1/24/2017	Safari	9/19/2017	238
html.elements.img.vspace 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.img.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.input 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 89, manipulating the content of `<input>` elements using `Document.execCommand()` commands requires workarounds (see bug 1220696).Firefox for Android: Before Firefox for Android 89, manipulating the content of `<input>` elements using `Document.execCommand()` commands requires workarounds (see bug 1220696).
html.elements.input.accept 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Safari on iOS: Does not support `audio/` MIME type. See bug 242110.WebView on iOS: Does not support `audio/` MIME type. See bug 242110.
html.elements.input.align 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.alt 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.autocomplete 📋	Firefox	3/22/2011	Safari	7/25/2012	491
html.elements.input.checked 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.dirname 📋	Chrome	2/8/2012	Firefox	8/1/2023	4192
html.elements.input.disabled 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.form 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.formaction 📋	Safari	6/7/2010	Firefox	3/22/2011	288
html.elements.input.formenctype 📋	Safari	6/7/2010	Firefox	3/22/2011	288
html.elements.input.formmethod 📋	Safari	6/7/2010	Firefox	3/22/2011	288
html.elements.input.formnovalidate 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
html.elements.input.formtarget 📋	Safari	6/7/2010	Firefox	3/22/2011	288
html.elements.input.max 📋	Chrome	1/25/2010	Firefox	10/9/2012	988
html.elements.input.maxlength 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.min 📋	Chrome	1/25/2010	Firefox	10/9/2012	988
html.elements.input.minlength 📋	Chrome	1/21/2015	Safari	3/27/2017	796
html.elements.input.multiple 📋	Chrome	5/21/2009	Firefox	1/21/2010	245
html.elements.input.name 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.pattern 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
html.elements.input.placeholder 📋	Safari	6/8/2009	Firefox	3/22/2011	652
html.elements.input.popovertarget 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
html.elements.input.popovertarget.implicit_anchor_reference 📋	Chrome	2/4/2025	Firefox	1/13/2026	343
html.elements.input.popovertargetaction 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
html.elements.input.readonly 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.required 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
html.elements.input.size 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.src 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.step 📋	Chrome	5/25/2010	Firefox	10/9/2012	868
html.elements.input.type_button 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_checkbox 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_color 📋	Chrome	6/26/2012	Safari	3/25/2019	2463	Firefox for Android: Firefox for Android doesn't allow the user to choose a custom color, only one of the predefined ones.
html.elements.input.type_date 📋	Chrome	6/26/2012	Safari	4/26/2021	3226
html.elements.input.type_date.disables_invalid_values_in_picker_ui	Chrome	6/26/2012	Safari	4/26/2021	3226
html.elements.input.type_datetime-local 📋	Chrome	6/26/2012	Firefox	10/5/2021	3388	Firefox: Only displays a date picker without a time picker, see bug 1726107 and bug 1726108.Firefox for Android: Only displays a date picker without a time picker, see bug 1726107 and bug 1726108.Safari: Safari only displays a date picker and does not display a time picker.
html.elements.input.type_email 📋	Firefox	11/9/2004	Safari	6/7/2010	2036	Safari on iOS: Doesn't do validation, but instead offers a custom 'email' keyboard, which is designed to make entering email addresses easier.Safari on iOS: The custom 'email' keyboard does not provide a comma key, so users cannot enter multiple email addresses.Safari on iOS: Automatically applies a default style of `opacity: 0.4` to disable textual `<input>` elements, including those of type 'email'. Other major browsers don't currently share this particular default style.WebView on iOS: Doesn't do validation, but instead offers a custom 'email' keyboard, which is designed to make entering email addresses easier.WebView on iOS: The custom 'email' keyboard does not provide a comma key, so users cannot enter multiple email addresses.WebView on iOS: Automatically applies a default style of `opacity: 0.4` to disable textual `<input>` elements, including those of type 'email'. Other major browsers don't currently share this particular default style.
html.elements.input.type_email.list 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.input.type_file 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: You can set as well as get the value of `HTMLInputElement.files` in all modern browsers; this was most recently added to Firefox, in version 57 (see bug 1384030).
html.elements.input.type_hidden 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_image 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_number 📋	Chrome	10/19/2010	Firefox	4/29/2014	1288	Chrome: Prevents users from typing non-numeric content.Chrome Android: Prevents users from typing non-numeric content.Firefox: Allows users to type non-numeric content, with the `value` reflecting an empty string.Firefox for Android: Allows users to type non-numeric content, with the `value` reflecting an empty string.Quest Browser: Prevents users from typing non-numeric content.Opera: Prevents users from typing non-numeric content.Opera Android: Prevents users from typing non-numeric content.Safari: Allows users to type non-numeric content, with the `value` reflecting an empty string.Safari on iOS: Allows users to type non-numeric content, with the `value` reflecting an empty string.Samsung Internet: Prevents users from typing non-numeric content.WebView Android: Prevents users from typing non-numeric content.WebView on iOS: Allows users to type non-numeric content, with the `value` reflecting an empty string.
html.elements.input.type_number.list 📋	Chrome	9/25/2012	Safari	3/25/2019	2372
html.elements.input.type_password 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_radio 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_range 📋	Safari	3/18/2008	Firefox	8/6/2013	1967	WebView Android: Pre-Chromium Android WebView recognizes the `range` type, but doesn't implement a range-specific control.
html.elements.input.type_range.list 📋	Chrome	6/26/2012	Firefox	2/14/2023	3885
html.elements.input.type_range.tick_marks	Chrome	5/29/2018	Firefox	1/17/2023	1694
html.elements.input.type_range.vertical_orientation	Safari	5/18/2023	Chrome	4/16/2024	334	Chrome: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Chrome: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.Chrome Android: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Chrome Android: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.Edge: Vertical orientation available by setting the `writing-mode: bt-lr` style on the `input` element.Firefox: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Firefox: Supported using the non-standard `orient="vertical"` attribute.Firefox for Android: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Firefox for Android: Supported using the non-standard `orient="vertical"` attribute.Internet Explorer: Vertical orientation available by setting the `writing-mode: bt-lr` style on the `input` element.Quest Browser: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.Opera: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Opera: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.Opera Android: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Opera Android: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.Safari: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Safari: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.Safari on iOS: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Safari on iOS: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.Samsung Internet: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).Samsung Internet: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.WebView Android: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).WebView Android: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.WebView on iOS: Vertical orientation available via the `writing-mode` property (see Creating vertical controls).WebView on iOS: Vertical orientation available by setting the non-standard `-webkit-appearance: slider-vertical` style on the `input` element. You shouldn't use this, since it's proprietary, unless you include appropriate fallbacks for users of other browsers.
html.elements.input.type_reset 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Unlike other browsers, Firefox by default persists the dynamic disabled state of a `<button>` across page loads. Use the `autocomplete` attribute to control this feature.Firefox for Android: Unlike other browsers, Firefox for Android by default persists the dynamic disabled state of a `<button>` across page loads. Use the `autocomplete` attribute to control this feature.
html.elements.input.type_search 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.input.type_search.list 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.input.type_submit 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Unlike other browsers, Firefox by default persists the dynamic disabled state of a `<button>` across page loads. Use the `autocomplete` attribute to control this feature.Firefox for Android: Unlike other browsers, Firefox for Android by default persists the dynamic disabled state of a `<button>` across page loads. Use the `autocomplete` attribute to control this feature.
html.elements.input.type_tel 📋	Safari	6/8/2009	Firefox	3/22/2011	652	Chrome: The field type doesn't demonstrate any special behavior.Safari: The field type doesn't demonstrate any special behavior.
html.elements.input.type_tel.list 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.input.type_text 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_text.list 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.input.type_time 📋	Chrome	6/26/2012	Safari	4/26/2021	3226
html.elements.input.type_url 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.type_url.list 📋	Firefox	3/22/2011	Safari	3/25/2019	2925
html.elements.input.usemap 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.input.webkitdirectory	Chrome	10/19/2010	Safari	4/12/2018	2732	Chrome Android: In Chrome for Android 131, choosing a directory crashes the browser (see bug 376834374).Chrome Android: Before version 131, users cannot choose a directory, only individual files (see bug 40248532.Safari on iOS: Before version 18.4, the attribute can be set but users cannot choose a directory, only individual files (see bug 271705).WebView Android: In Chrome for Android 131, choosing a directory crashes the browser (see bug 376834374).WebView Android: Before version 131, users cannot choose a directory, only individual files (see bug 40248532.WebView on iOS: Before version 18.4, the attribute can be set but users cannot choose a directory, only individual files (see bug 271705).
html.elements.ins 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.ins.cite	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.ins.datetime	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.kbd 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, creating a <kbd> element incorrectly resulted in an `HTMLSpanElement` object, instead of the expected `HTMLElement`.
html.elements.label 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.label.for 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.legend 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.legend.align	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.li 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.li.type 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.li.value 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link.as 📋	Chrome	4/13/2016	Firefox	9/28/2017	533
html.elements.link.charset 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link.crossorigin 📋	Firefox	1/8/2013	Safari	9/20/2016	1351	Firefox: Before Firefox 83, `crossorigin` is not supported for `rel="icon"`.Firefox for Android: Before Firefox for Android 83, `crossorigin` is not supported for `rel="icon"`.
html.elements.link.disabled 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Chrome: In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Chrome Android: In Chrome Android and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Edge: Since Edge 79, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Quest Browser: In Quest Browser and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Opera: In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Opera Android: In Chrome and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.Samsung Internet: In Samsung Internet and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.WebView Android: In WebView Android and other Blink-based browsers, adding the `disabled` attribute using JavaScript does not remove the stylesheet from `document.styleSheets`.
html.elements.link.fetchpriority 📋	Chrome	4/26/2022	Firefox	10/29/2024	917
html.elements.link.href 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link.hreflang 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link.imagesizes 📋	Chrome	3/12/2019	Safari	12/11/2023	1735
html.elements.link.imagesrcset 📋	Chrome	3/12/2019	Safari	12/11/2023	1735
html.elements.link.integrity 📋	Chrome	9/1/2015	Safari	4/12/2018	954
html.elements.link.media 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link.referrerpolicy 📋	Chrome	5/25/2016	Safari	9/16/2020	1575
html.elements.link.rel 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.link.rel.dns-prefetch 📋	Safari	6/7/2010	Firefox	6/11/2024	5118	Firefox: Only HTTP pages were supported.Firefox for Android: Only HTTP pages were supported.
html.elements.link.rel.icon	Firefox	10/24/2006	Chrome	1/25/2010	1189	Chrome: If both ICO and PNG are available, will use ICO over PNG if ICO has better matching sizes set. (Per caniuse.com.).Edge: In version 79 and later (Blink-based Edge), if both ICO and PNG are available, will use ICO over PNG if ICO has better matching sizes set. (Per caniuse.com.)Firefox: Before Firefox 83, the `crossorigin` attribute is not supported for `rel="icon"`.Firefox: The `media` attribute is not supported for `rel="icon"`, see bug 1603885.Opera: In version 15 and later (Blink-based Opera), if both ICO and PNG are available, will use ICO over PNG if ICO has better matching sizes set. (Per caniuse.com.)Safari: If both ICO and PNG are available, will ALWAYS use ICO file, regardless of sizes set. (Per caniuse.com.)Safari on iOS: Does not use favicons at all (but may have alternative for bookmarks, etc.). (Per caniuse.com.)WebView on iOS: Does not use favicons at all (but may have alternative for bookmarks, etc.). (Per caniuse.com.)
html.elements.link.rel.modulepreload 📋	Chrome	4/17/2018	Safari	9/18/2023	1980
html.elements.link.rel.modulepreload.as-script 📋	Chrome	4/17/2018	Safari	9/18/2023	1980
html.elements.link.rel.preconnect 📋	Firefox	7/2/2015	Safari	4/12/2018	1015	Firefox: Before Firefox 41, it doesn't obey the `crossorigin` attribute.Firefox for Android: Before Firefox for Android 41, it doesn't obey the `crossorigin` attribute.
html.elements.link.rel.prefetch 📋	Firefox	10/24/2006	Safari	3/24/2020	4900	Chrome: Requires secure contextChrome Android: Requires secure contextEdge: Requires secure contextFirefox: Requires secure contextFirefox for Android: Requires secure contextQuest Browser: Requires secure contextOpera: Requires secure contextOpera Android: Requires secure contextSamsung Internet: Requires secure contextWebView Android: Requires secure context
html.elements.link.rel.preload 📋	Chrome	4/13/2016	Firefox	1/26/2021	1749	Firefox: Disabled due to various web compatibility issues (e.g. bug 1405761).Firefox for Android: Disabled due to various web compatibility issues (e.g. bug 1405761).
html.elements.link.rel.preload.as-fetch	Chrome	4/13/2016	Firefox	1/26/2021	1749	Firefox: Disabled due to various web compatibility issues (e.g. bug 1405761).Firefox for Android: Disabled due to various web compatibility issues (e.g. bug 1405761).
html.elements.link.rel.preload.as-font	Chrome	4/13/2016	Firefox	1/26/2021	1749	Firefox: Disabled due to various web compatibility issues (e.g. bug 1405761).Firefox for Android: Disabled due to various web compatibility issues (e.g. bug 1405761).
html.elements.link.rel.preload.as-image	Chrome	4/13/2016	Firefox	1/26/2021	1749	Firefox: Disabled due to various web compatibility issues (e.g. bug 1405761).Firefox for Android: Disabled due to various web compatibility issues (e.g. bug 1405761).
html.elements.link.rel.preload.as-script	Chrome	4/13/2016	Firefox	1/26/2021	1749	Firefox: Disabled due to various web compatibility issues (e.g. bug 1405761).Firefox for Android: Disabled due to various web compatibility issues (e.g. bug 1405761).
html.elements.link.rel.preload.as-style	Chrome	4/13/2016	Firefox	1/26/2021	1749	Firefox: Disabled due to various web compatibility issues (e.g. bug 1405761).Firefox for Android: Disabled due to various web compatibility issues (e.g. bug 1405761).
html.elements.link.rev 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link.sizes 📋	Chrome	10/25/2011	Firefox	7/22/2014	1001
html.elements.link.target 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.link.type 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.main 📋	Chrome	3/26/2013	Safari	10/22/2013	210
html.elements.map 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 5, in Quirks Mode, empty maps were no longer skipped over in favor of non-empty ones when matching.Firefox: Before Firefox 17, the default styling of the `<map>` HTML element was `display: block;`. This is now `display: inline;` and matches the behavior of the other browsers. It was already the case in Quirks Mode.
html.elements.map.name	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.mark 📋	Chrome	10/19/2010	Safari	7/20/2011	274
html.elements.marquee 📋	Safari	2/2/2004	Firefox	1/29/2019	5475	Firefox: Implements the `HTMLDivElement` interface.Firefox for Android: Implements the `HTMLDivElement` interface.
html.elements.marquee.behavior	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.bgcolor	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.direction	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.height	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.hspace	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.loop	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.scrollamount	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.scrolldelay	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.truespeed	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.vspace	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.marquee.width	Safari	2/2/2004	Chrome	12/11/2008	1774
html.elements.menu 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.meta 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.meta.charset 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.meta.content 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.meta.http-equiv 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.meta.http-equiv.content-language 📋	Firefox	11/9/2004	Chrome	6/5/2017	4591
html.elements.meta.http-equiv.content-security-policy 📋	Firefox	11/9/2004	Chrome	6/5/2017	4591
html.elements.meta.http-equiv.content-type 📋	Firefox	11/9/2004	Chrome	6/5/2017	4591
html.elements.meta.http-equiv.refresh 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.meta.name 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.meta.name.color-scheme 📋	Safari	3/25/2019	Firefox	1/11/2022	1023
html.elements.meta.name.referrer 📋	Chrome	2/8/2012	Safari	4/12/2018	2255	Chrome: Until Chrome 46, `content` values weren't constrained to the values listed in the spec.Chrome Android: Until Chrome Android 46, `content` values weren't constrained to the values listed in the spec.Firefox: The `referrer` value wasn't taken into account when navigation was happening via the context menu or middle click until Firefox 39.Firefox for Android: The `referrer` value wasn't taken into account when navigation was happening via the context menu or middle click until Firefox for Android 39.Internet Explorer: Browsers initially supported an early draft of the specification which can only use a meta tag and is only compatible with the `origin` value from the new spec.Quest Browser: Until Quest Browser 5.0, `content` values weren't constrained to the values listed in the spec.Opera: Until Opera 33, `content` values weren't constrained to the values listed in the spec.Opera Android: Until Opera Android 33, `content` values weren't constrained to the values listed in the spec.Samsung Internet: Until Samsung Internet 5.0, `content` values weren't constrained to the values listed in the spec.WebView Android: Until WebView Android 46, `content` values weren't constrained to the values listed in the spec.
html.elements.meta.scheme 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.meter 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
html.elements.meter.high 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
html.elements.meter.low 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
html.elements.meter.max 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
html.elements.meter.min 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
html.elements.meter.optimum 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
html.elements.meter.value 📋	Chrome	9/2/2010	Firefox	10/9/2012	768
html.elements.nav 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.nobr 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.noembed 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.noframes 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.noscript 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.archive 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.border 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.classid 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.codetype 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.data 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.declare 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.height 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.standby 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.type 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.usemap 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.object.width 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.ol 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.ol.compact	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.ol.reversed 📋	Chrome	3/28/2012	Firefox	1/8/2013	286
html.elements.ol.start 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.ol.type 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.optgroup 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.optgroup.disabled 📋	Firefox	11/9/2004	Safari	10/22/2013	3269	Safari: Before Safari 7, the attribute can be set, but has no effect.Safari on iOS: The attribute can be set, but has no effect.WebView on iOS: The attribute can be set, but has no effect.
html.elements.optgroup.label 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.option 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.option.disabled 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.option.label 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before 77, Firefox didn't display the value of the `label` attribute as option text if element's content was empty. See bug 40545.Firefox: Historically, Firefox has allowed keyboard and mouse events to bubble up from the `<option>` element to the parent `<select>` element, although this behavior is inconsistent across many browsers. For better Web compatibility (and for technical reasons), they will not bubble up when Firefox is in multi-process mode and the `<select>` element is displayed as a drop-down list. The behavior is unchanged if the `<select>` is presented inline and it has either the `multiple` attribute defined or a `size` attribute set to more than `1`. Rather than watching `<option>` elements for events, you should watch for change events on `<select>`. See bug 1090602 for details.Firefox: When Mozilla introduced dedicated content threads to Firefox (through the Electrolysis, or e10s, project), support for styling `<option>` elements was removed temporarily. Starting in Firefox 54, you can apply foreground and background colors to `<option>` elements again, using the `color` and `background-color` CSS properties. See bug 910022 for more information. Note that this is still disabled in Linux due to lack of contrast (see bug 1338283 for progress on this).Firefox for Android: Before 77, Firefox didn't display the value of the `label` attribute as option text if element's content was empty. See bug 40545.
html.elements.option.selected 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.option.value 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.output 📋	Chrome	3/8/2011	Safari	10/22/2013	959
html.elements.output.for 📋	Chrome	3/8/2011	Safari	10/22/2013	959
html.elements.output.form 📋	Chrome	3/8/2011	Safari	10/22/2013	959
html.elements.output.name 📋	Chrome	3/8/2011	Safari	10/22/2013	959
html.elements.p 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.param 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.param.name	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.param.type	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.param.value	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.param.valuetype	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.picture 📋	Chrome	10/7/2014	Safari	3/21/2016	531
html.elements.plaintext 📋	Chrome	12/11/2008	Firefox	3/22/2011	831	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.pre 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.pre.width	Firefox	11/9/2004	Chrome	12/11/2008	1493	Chrome: Specifying the `width` attribute has no layout effect.Chrome Android: Specifying the `width` attribute has no layout effect.Edge: Specifying the `width` attribute has no layout effect.Firefox: Since Firefox 29, specifying the `width` attribute has no layout effect.Firefox for Android: Since Firefox for Android 29, specifying the `width` attribute has no layout effect.Internet Explorer: Specifying the `width` attribute has no layout effect.Quest Browser: Specifying the `width` attribute has no layout effect.Opera: Specifying the `width` attribute has no layout effect.Opera Android: Specifying the `width` attribute has no layout effect.Safari: Specifying the `width` attribute has no layout effect.Safari on iOS: Specifying the `width` attribute has no layout effect.Samsung Internet: Specifying the `width` attribute has no layout effect.WebView Android: Specifying the `width` attribute has no layout effect.WebView on iOS: Specifying the `width` attribute has no layout effect.
html.elements.progress 📋	Chrome	9/2/2010	Safari	7/25/2012	692	Firefox: Before Firefox 14, the `<progress>` element was incorrectly classified as a form element, and therefore had a `form` attribute. This has been fixed.Firefox: Firefox provides the `::-moz-progress-bar` pseudo-element, which lets you style the part of the interior of the progress bar representing the amount of work completed so far.Firefox for Android: Before Firefox for Android 14, the `<progress>` element was incorrectly classified as a form element, and therefore had a `form` attribute. This has been fixed.Firefox for Android: Firefox for Android provides the `::-moz-progress-bar` pseudo-element, which lets you style the part of the interior of the progress bar representing the amount of work completed so far.Safari on iOS: Safari on iOS does not support indeterminate progress bars (they are rendered like 0%-completed progress bars).WebView on iOS: WebView on iOS does not support indeterminate progress bars (they are rendered like 0%-completed progress bars).
html.elements.progress.max 📋	Chrome	9/2/2010	Safari	7/25/2012	692
html.elements.progress.value 📋	Chrome	9/2/2010	Safari	7/25/2012	692
html.elements.q 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.q.cite 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.rb 📋	Chrome	5/25/2010	Firefox	5/12/2015	1813	Chrome: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.Chrome Android: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.Edge: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.Quest Browser: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.Opera: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.Opera Android: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.Safari: Safari has support for parsing the `rb` element, but not for rendering `rb` content as expected.Safari on iOS: Safari on iOS has support for parsing the `rb` element, but not for rendering `rb` content as expected.Samsung Internet: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.WebView Android: Blink has support for parsing the `rb` element, but not for rendering `rb` content as expected.WebView on iOS: WebView on iOS has support for parsing the `rb` element, but not for rendering `rb` content as expected.
html.elements.rp 📋	Chrome	5/25/2010	Firefox	5/12/2015	1813
html.elements.rt 📋	Chrome	5/25/2010	Firefox	5/12/2015	1813	Chrome: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 347597919.Chrome Android: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 347597919.Quest Browser: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 347597919.Opera: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 347597919.Opera Android: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 347597919.Safari: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 265316.Safari on iOS: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 265316.Samsung Internet: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 347597919.WebView Android: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 347597919.WebView on iOS: Nested `<rt>` elements do not render correctly due to missing `display: ruby-text` styling. See bug 265316.
html.elements.rtc 📋	Firefox	10/14/2014	Chrome	12/1/2015	413
html.elements.ruby 📋	Chrome	5/25/2010	Firefox	5/12/2015	1813
html.elements.s 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.samp 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.script 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493	Firefox: Starting in Firefox 4, inserting <script> elements that have been created by calling `document.createElement("script")` no longer enforces execution in insertion order. This change lets Firefox properly abide by the specification. To make script-inserted external scripts execute in their insertion order, set `.async=false` on them.
html.elements.script.async 📋	Chrome	12/11/2008	Firefox	1/21/2010	406
html.elements.script.crossorigin 📋	Chrome	5/15/2012	Safari	7/25/2012	71	Safari: The `crossorigin` attribute was implemented in WebKit in WebKit bug 81438.Safari on iOS: The `crossorigin` attribute was implemented in WebKit in WebKit bug 81438.WebView on iOS: The `crossorigin` attribute was implemented in WebKit in WebKit bug 81438.
html.elements.script.defer 📋	Safari	10/26/2007	Firefox	6/30/2009	613	Chrome: Chrome does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see bug 41253514 and bug 41408348Chrome Android: Chrome Android does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see bug 41253514 and bug 41408348Firefox: Since Firefox 3.6, the `defer` attribute is ignored on scripts that don't have the `src` attribute. However, in Firefox 3.5 even inline scripts are deferred if the `defer` attribute is set.Internet Explorer: Before version 10, Internet Explorer implemented `defer` by a proprietary specification. Since version 10 it conforms to the W3C specification.Quest Browser: Quest Browser does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see bug 41253514 and bug 41408348Opera: Opera does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see bug 41253514 and bug 41408348Opera Android: Opera Android does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see bug 41253514 and bug 41408348Samsung Internet: Samsung Internet does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see bug 41253514 and bug 41408348WebView Android: WebView Android does not defer scripts with the `defer` attribute when the page is served as XHTML (`application/xhtml+xml`), see bug 41253514 and bug 41408348
html.elements.script.fetchpriority 📋	Chrome	4/26/2022	Firefox	10/29/2024	917
html.elements.script.integrity 📋	Chrome	9/1/2015	Safari	4/12/2018	954
html.elements.script.nomodule 📋	Chrome	9/5/2017	Firefox	5/9/2018	246
html.elements.script.referrerpolicy 📋	Chrome	10/16/2018	Safari	9/16/2020	701
html.elements.script.src 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.script.type 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.script.type.importmap 📋	Chrome	3/2/2021	Safari	3/27/2023	755
html.elements.script.type.importmap.integrity 📋	Chrome	7/23/2024	Firefox	4/29/2025	280
html.elements.script.type.module	Safari	3/27/2017	Firefox	5/9/2018	408	Chrome: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.Chrome Android: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.Edge: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.Quest Browser: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.Opera: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.Opera Android: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.Safari: Module scripts do not load when the page is served as XHTML (`application/xhtml+xml`).Safari on iOS: Module scripts do not load when the page is served as XHTML (`application/xhtml+xml`).Samsung Internet: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.WebView Android: Module scripts without the `async` attribute do not load when the page is served as XHTML (`application/xhtml+xml`). See bug 40518469.WebView on iOS: Module scripts do not load when the page is served as XHTML (`application/xhtml+xml`).
html.elements.search 📋	Safari	9/18/2023	Chrome	10/10/2023	22
html.elements.section 📋	Chrome	5/25/2010	Firefox	3/22/2011	301
html.elements.select 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Chrome: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.Chrome Android: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.Firefox: Historically, Firefox has allowed keyboard and mouse events to bubble up from the `<option>` element to the parent `<select>` element, although this behavior is inconsistent across many browsers. For better Web compatibility (and for technical reasons), when Firefox is in multi-process mode the `<select>` element is displayed as a drop-down list. The behavior is unchanged if the `<select>` is presented inline and it has either the multiple attribute defined or a size attribute set to more than 1. Rather than watching `<option>` elements for events, you should watch for change events on `<select>`. See bug 1090602 for details.Firefox for Android: Firefox for Android, by default, sets a `background-image` gradient on all `<select multiple>` elements. This can be disabled using `background-image: none`.Quest Browser: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.Safari: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.Safari on iOS: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.Samsung Internet: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.WebView Android: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.WebView on iOS: `border-radius` on `<select>` elements is ignored unless `-webkit-appearance` is overridden to an appropriate value.
html.elements.select.autocomplete 📋	Safari	3/21/2016	Chrome	4/17/2018	757
html.elements.select.disabled 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.select.form 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.select.hr_in_select	Safari	9/18/2023	Firefox	1/23/2024	127	Chrome: Exposes the `<hr>` visually in the page only when the menu is expanded (arrowing within the collapsed menu does not show them).Chrome: Does not expose the `<hr>` in the accessibility tree.Edge: Exposes the `<hr>` visually in the page only when the menu is expanded (arrowing within the collapsed menu does not show them).Edge: Does not expose the `<hr>` in the accessibility tree.Firefox: Does not expose the `<hr>` in the accessibility tree.Opera: Exposes the `<hr>` visually in the page only when the menu is expanded (arrowing within the collapsed menu does not show them).Opera: Does not expose the `<hr>` in the accessibility tree.Safari: Does not expose the `<hr>` in the accessibility tree.Safari on iOS: Does not expose the `<hr>` in the accessibility tree.WebView on iOS: Does not expose the `<hr>` in the accessibility tree.
html.elements.select.multiple 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.select.name 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.select.required 📋	Chrome	3/8/2011	Safari	7/20/2011	134
html.elements.select.size 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.slot 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
html.elements.slot.name	Chrome	8/31/2016	Firefox	10/23/2018	783
html.elements.small 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.source 📋	Safari	3/18/2008	Chrome	9/15/2009	546	Firefox: Until Firefox 15, Firefox picked the first source element that has a type matching the MIME-type of a supported media format; see bug 449363 for details.Firefox for Android: Until Firefox for Android 15, Firefox for Android picked the first source element that has a type matching the MIME-type of a supported media format; see bug 449363 for details.
html.elements.source.height 📋	Chrome	4/13/2021	Firefox	12/13/2022	609
html.elements.source.media 📋	Safari	3/18/2008	Firefox	8/28/2012	1624	Firefox: `media` is supported in `<source>` within `<picture>`, `<audio>`, and `<video>`. In Firefox 53-119, `media` is supported only in `<source>` within `<picture>`.Firefox for Android: `media` is supported in `<source>` within `<picture>`, `<audio>`, and `<video>`. In Firefox for Android 53-119, `media` is supported only in `<source>` within `<picture>`.
html.elements.source.sizes 📋	Chrome	10/7/2014	Safari	3/21/2016	531	Chrome: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Chrome Android: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Opera: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Opera Android: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Samsung Internet: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).WebView Android: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).
html.elements.source.src 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.source.srcset 📋	Chrome	10/7/2014	Safari	3/21/2016	531	Chrome: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Chrome Android: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Opera: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Opera Android: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).Samsung Internet: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).WebView Android: Supports a subset of the syntax for resolution switching (using the `x` descriptor), but not the full syntax that can be used with `sizes` (using the `w` descriptor).
html.elements.source.type 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.source.width 📋	Chrome	4/13/2021	Firefox	12/13/2022	609
html.elements.span 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.strike 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.Firefox for Android: Before Firefox for Android 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.strong 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, creating a `<strong>` element incorrectly resulted in an `HTMLSpanElement` object, instead of the expected `HTMLElement`.
html.elements.style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.style.media 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.style.type 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before 75, Firefox accepted any CSS media (MIME) type, with optional parameters. Starting in 75, this has been restricted to the string 'text/css', per the spec.
html.elements.sub 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.summary 📋	Chrome	6/7/2011	Firefox	9/20/2016	1932
html.elements.sup 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.table 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.align	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.bgcolor	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.border	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.cellpadding	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.cellspacing	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.frame	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.rules	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.summary	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.table.width	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tbody 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tbody.align	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.tbody.bgcolor	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tbody.valign	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.td 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.abbr	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.align	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.td.axis	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.bgcolor	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.colspan	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.headers	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.rowspan	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.scope	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.td.valign	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.td.width	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.template 📋	Chrome	3/26/2013	Safari	10/16/2014	569
html.elements.template.shadowrootclonable 📋	Chrome	4/16/2024	Safari	5/13/2024	27
html.elements.template.shadowrootdelegatesfocus 📋	Safari	3/27/2023	Chrome	3/19/2024	358
html.elements.template.shadowrootmode 📋	Chrome	3/7/2023	Firefox	2/20/2024	350
html.elements.template.shadowrootreferencetarget	Chrome	2/4/2025	Firefox	3/24/2026	413
html.elements.textarea 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 6, when a `<textarea>` was focused, the insertion point was placed at the end of the text by default. Other major browsers place the insertion point at the beginning of the text.Firefox: A default background-image gradient is applied to all `<textarea>` elements, which can be disabled using `background-image: none`.Firefox: Before Firefox 89, manipulating the content of `<textarea>` elements using `Document.execCommand()` commands requires workarounds (see bug 1220696).Firefox for Android: Before Firefox for Android 6, when a `<textarea>` was focused, the insertion point was placed at the end of the text by default. Other major browsers place the insertion point at the beginning of the text.Firefox for Android: A default background-image gradient is applied to all `<textarea>` elements, which can be disabled using `background-image: none`.Firefox for Android: Before Firefox for Android 89, manipulating the content of `<textarea>` elements using `Document.execCommand()` commands requires workarounds (see bug 1220696).Safari on iOS: Unlike other major browsers, a default style of `opacity: 0.4` is applied to disabled `<textarea>` elements.WebView on iOS: Unlike other major browsers, a default style of `opacity: 0.4` is applied to disabled `<textarea>` elements.
html.elements.textarea.autocomplete 📋	Safari	3/21/2016	Chrome	4/17/2018	757
html.elements.textarea.autocomplete.one-time-code	Safari	9/17/2018	Firefox	1/17/2023	1583
html.elements.textarea.cols 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.textarea.dirname 📋	Chrome	2/8/2012	Firefox	8/1/2023	4192
html.elements.textarea.disabled 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.textarea.form 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.textarea.maxlength 📋	Chrome	1/25/2010	Firefox	3/22/2011	421	Safari: Before Safari 17, newline characters counted as two characters instead of one. See bug 249916.Safari on iOS: Before Safari on iOS 17, newline characters counted as two characters instead of one. See bug 249916.WebView on iOS: Before WebView on iOS 17, newline characters counted as two characters instead of one. See bug 249916.
html.elements.textarea.minlength 📋	Chrome	1/21/2015	Safari	3/27/2017	796
html.elements.textarea.name 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.textarea.placeholder 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
html.elements.textarea.placeholder.line_breaks	Chrome	7/16/2014	Safari	9/12/2022	2980
html.elements.textarea.readonly 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.textarea.required 📋	Chrome	1/25/2010	Firefox	3/22/2011	421
html.elements.textarea.rows 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.textarea.wrap 📋	Firefox	3/22/2011	Safari	7/25/2012	491
html.elements.tfoot 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tfoot.align	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.tfoot.bgcolor	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tfoot.valign	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.th 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.abbr	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.align	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.th.axis	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.bgcolor	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.colspan	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.headers	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.rowspan	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.scope	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.th.valign	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.th.width	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.thead 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Safari: Backgrounds applied to `<thead>` elements will be applied to each table cell, rather than the entire header. To mimic the behavior of other browsers, set the `background-attachment` CSS property to `fixed`.Safari on iOS: Backgrounds applied to `<thead>` elements will be applied to each table cell, rather than the entire header. To mimic the behavior of other browsers, set the `background-attachment` CSS property to `fixed`.WebView on iOS: Backgrounds applied to `<thead>` elements will be applied to each table cell, rather than the entire header. To mimic the behavior of other browsers, set the `background-attachment` CSS property to `fixed`.
html.elements.thead.align	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.thead.bgcolor	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.thead.valign	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.time 📋	Firefox	6/25/2013	Chrome	10/17/2017	1575
html.elements.time.datetime	Firefox	6/25/2013	Chrome	10/17/2017	1575
html.elements.title 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tr 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tr.align	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.tr.bgcolor	Safari	6/23/2003	Chrome	12/11/2008	1998
html.elements.tr.valign	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.track 📋	Safari	7/25/2012	Firefox	7/22/2014	727	Chrome Android: Doesn't work for fullscreen video.Quest Browser: Doesn't work for fullscreen video.Samsung Internet: Doesn't work for fullscreen video.WebView Android: Doesn't work for fullscreen video.
html.elements.track.default 📋	Safari	7/25/2012	Firefox	7/22/2014	727
html.elements.track.kind 📋	Safari	7/25/2012	Firefox	7/22/2014	727
html.elements.track.label 📋	Safari	7/25/2012	Firefox	7/22/2014	727
html.elements.track.src 📋	Safari	7/25/2012	Firefox	11/15/2016	1574	Firefox: Before Firefox 50, setting the `src` didn't work, though it didn't raise an error.Firefox for Android: Before Firefox for Android 50, setting the `src` didn't work, though it didn't raise an error.
html.elements.track.srclang 📋	Safari	7/25/2012	Firefox	7/22/2014	727
html.elements.tt 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.Firefox for Android: Before Firefox for Android 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.u 📋	Safari	6/23/2003	Chrome	12/11/2008	1998	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.elements.ul 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.ul.compact 📋	Firefox	11/9/2004	Chrome	12/11/2008	1493
html.elements.ul.type 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.var 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.video 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.video.aspect_ratio_computed_from_attributes	Chrome	12/10/2019	Safari	9/16/2020	281
html.elements.video.autoplay 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.video.autoplay.requires_muted_audio	Chrome	5/29/2018	Safari	9/12/2022	1567	Firefox for Android: Between versions 79 and 91, the default behavior was to block videos from autoplaying, regardless of whether audio was muted.
html.elements.video.controls 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.video.crossorigin 📋	Chrome	2/20/2014	Firefox	3/10/2020	2210	Firefox: With `crossorigin="use-credentials"`, cookies aren't sent during seek. See bug 1532722.Firefox for Android: With `crossorigin="use-credentials"`, cookies aren't sent during seek. See bug 1532722.
html.elements.video.disablepictureinpicture 📋	Chrome	9/4/2018	Firefox	1/23/2024	1967	Firefox: When this attribute is set, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox: When this attribute is set, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox for Android: When this attribute is set, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox for Android: When this attribute is set, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.
html.elements.video.height 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.video.loop 📋	Safari	3/18/2008	Firefox	3/13/2012	1456
html.elements.video.muted 📋	Safari	6/7/2010	Chrome	10/1/2013	1212
html.elements.video.poster 📋	Safari	3/18/2008	Firefox	1/21/2010	674
html.elements.video.preload 📋	Safari	3/18/2008	Firefox	3/22/2011	1099	Chrome: Defaults to `metadata` in Chrome 64.Chrome Android: Defaults to `metadata` in Chrome Android 64.Quest Browser: Defaults to `metadata` in Quest Browser 5.0.Opera: Defaults to `metadata` in Opera 51.Opera Android: Defaults to `metadata` in Opera Android 47.Samsung Internet: Defaults to `metadata` in Samsung Internet 9.0.WebView Android: Defaults to `metadata` in WebView Android 64.
html.elements.video.src 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.video.width 📋	Safari	3/18/2008	Chrome	9/15/2009	546
html.elements.wbr 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.elements.xmp 📋	Firefox	11/9/2004	Safari	6/8/2009	1672	Firefox: Before Firefox 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.Firefox for Android: Before Firefox for Android 4, this element implemented the `HTMLSpanElement` interface instead of the standard `HTMLElement` interface.
html.global_attributes.accesskey 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.global_attributes.autofocus 📋	Chrome	12/10/2019	Firefox	2/14/2023	1162	Chrome: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Chrome Android: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Edge: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Firefox: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Firefox for Android: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Internet Explorer: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Quest Browser: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Opera: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Opera Android: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Safari: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.Safari on iOS: If there's no hardware keyboard connected, then the `autofocus` attribute has no effect (for example, the `focus` event doesn't fire and the element does not match the `:focus` selector).Samsung Internet: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.WebView Android: Supported for the `<button>`, `<input>`, `<select>`, and `<textarea>` elements.WebView on iOS: If there's no hardware keyboard connected, then the `autofocus` attribute has no effect (for example, the `focus` event doesn't fire and the element does not match the `:focus` selector).
html.global_attributes.class 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.global_attributes.contenteditable 📋	Firefox	6/17/2008	Safari	6/8/2009	356
html.global_attributes.contenteditable.plaintext-only	Safari	6/7/2010	Firefox	3/4/2025	5384
html.global_attributes.data_attributes 📋	Chrome	10/19/2010	Firefox	8/16/2011	301
html.global_attributes.dir 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.global_attributes.draggable 📋	Firefox	10/24/2006	Safari	6/7/2010	1322
html.global_attributes.enterkeyhint 📋	Chrome	9/10/2019	Firefox	11/2/2021	784
html.global_attributes.exportparts 📋	Chrome	3/12/2019	Safari	3/24/2020	378
html.global_attributes.hidden 📋	Chrome	3/8/2011	Safari	7/20/2011	134	Safari: This attribute has no effect on `<option>` elements.Safari on iOS: This attribute has no effect on `<option>` elements.WebView on iOS: This attribute has no effect on `<option>` elements.
html.global_attributes.hidden.until-found 📋	Chrome	5/24/2022	Firefox	2/24/2026	1372	Firefox: The browser does not correctly scroll to the matching text. See bug 2006040.Firefox for Android: The browser does not correctly scroll to the matching text. See bug 2006040.Safari: The browser does not correctly scroll to the matching text. See bug 304174.Safari on iOS: The browser does not correctly scroll to the matching text. See bug 304174.WebView on iOS: The browser does not correctly scroll to the matching text. See bug 304174.
html.global_attributes.id 📋	Safari	6/23/2003	Firefox	9/2/2014	4089	Firefox: `id` is a true global attribute only since Firefox 32.Firefox for Android: `id` is a true global attribute only since Firefox for Android 32.
html.global_attributes.inert 📋	Safari	5/16/2022	Firefox	4/11/2023	330
html.global_attributes.inputmode 📋	Chrome	4/17/2018	Firefox	12/7/2021	1330	Safari on iOS: Before iOS 13, `inputmode="none"` had no effect.WebView on iOS: Before iOS 13, `inputmode="none"` had no effect.
html.global_attributes.lang 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.global_attributes.nonce 📋	Chrome	9/5/2017	Safari	5/16/2022	1714	Firefox: Firefox does not prevent `nonce` exfiltration through content attributes.Firefox for Android: Firefox for Android does not prevent `nonce` exfiltration through content attributes.Safari: Safari does not prevent `nonce` exfiltration through content attributes.Safari on iOS: Safari on iOS does not prevent `nonce` exfiltration through content attributes.WebView on iOS: WebView on iOS does not prevent `nonce` exfiltration through content attributes.
html.global_attributes.part 📋	Chrome	3/12/2019	Safari	3/24/2020	378
html.global_attributes.popover 📋	Chrome	5/30/2023	Firefox	4/16/2024	322
html.global_attributes.slot 📋	Chrome	8/31/2016	Firefox	10/23/2018	783
html.global_attributes.spellcheck 📋	Firefox	10/24/2006	Safari	7/20/2011	1730	Chrome Android: Only supported on `<textarea>`.Firefox for Android: Only supported on `<textarea>`.Opera Android: Only supported on `<textarea>`.Safari on iOS: Only supported on `<textarea>`.Samsung Internet: Only supported on `<textarea>`.WebView Android: Only supported on `<textarea>`.WebView on iOS: Only supported on `<textarea>`.
html.global_attributes.style 📋	Safari	6/23/2003	Chrome	12/11/2008	1998
html.global_attributes.tabindex 📋	Firefox	11/29/2005	Chrome	12/11/2008	1108
html.global_attributes.title 📋	Firefox	11/9/2004	Safari	6/8/2009	1672
html.global_attributes.title.multi-line_titles	Safari	9/19/2017	Firefox	1/23/2018	126
html.global_attributes.translate 📋	Chrome	5/15/2012	Firefox	3/14/2023	3955