Now Stable

"New on the Web": For a given set of browsers, what APIs became stable and when, ordered reverse chronologically.

It's a great source of information for posts like this

Browsers
Features

Stable APIs

Below is a list of features that are in Chrome, Safari, and Firefox, ordered reverse chronologically by when they became stable (i.e, available in the last browser).

2025/2

API First Browser Date Last Browser Date Days
api.ClipboardItem.ClipboardItem πŸ“‹Safari3/24/2020 Chrome2/4/20251778
api.PerformanceResourceTiming.responseStart πŸ“‹Firefox1/13/2015 Chrome2/4/20253675
api.PublicKeyCredential.getClientCapabilities_static πŸ“‹Safari3/5/2024 Firefox2/4/2025336
api.RTCStatsReport.type_inbound-rtp.mid πŸ“‹Chrome9/2/2022 Firefox2/4/2025886
api.SubtleCrypto.deriveBits.x25519 πŸ“‹Safari9/18/2023 Chrome2/4/2025505
api.SubtleCrypto.deriveKey.x25519 πŸ“‹Safari9/18/2023 Chrome2/4/2025505
api.SubtleCrypto.exportKey.x25519 πŸ“‹Safari9/18/2023 Chrome2/4/2025505
api.SubtleCrypto.generateKey.x25519 πŸ“‹Safari9/18/2023 Chrome2/4/2025505
api.SubtleCrypto.importKey.x25519 πŸ“‹Safari9/18/2023 Chrome2/4/2025505

2025/1

API First Browser Date Last Browser Date Days
api.IDBRequest.error.transient_unrecoverable_read_errors πŸ“‹Firefox7/17/2012 Chrome1/14/20254564
api.PushMessageData.bytes πŸ“‹Firefox7/9/2024 Chrome1/14/2025189
api.Request.bytes πŸ“‹Firefox7/9/2024 Chrome1/14/2025189
api.Response.bytes πŸ“‹Firefox7/9/2024 Chrome1/14/2025189
api.PushManager.supportedContentEncodings_static πŸ“‹Chrome7/25/2017 Firefox1/7/20252723
javascript.builtins.Promise.try πŸ“‹Chrome8/20/2024 Firefox1/7/2025140

2024/12

API First Browser Date Last Browser Date Days
api.CSSNestedDeclarations πŸ“‹Chrome10/15/2024 Safari12/11/202457
api.CSSNestedDeclarations.style πŸ“‹Chrome10/15/2024 Safari12/11/202457
api.Element.auxclick_event πŸ“‹Chrome12/1/2016 Safari12/11/20242932
api.PointerEvent.PointerEvent.options_altitudeAngle_parameter Chrome10/20/2020 Safari12/11/20241513
api.PointerEvent.PointerEvent.options_azimuthAngle_parameter Chrome10/20/2020 Safari12/11/20241513
api.PointerEvent.altitudeAngle πŸ“‹Chrome10/20/2020 Safari12/11/20241513
api.PointerEvent.azimuthAngle πŸ“‹Chrome10/20/2020 Safari12/11/20241513
api.PointerEvent.getCoalescedEvents πŸ“‹Chrome4/19/2017 Safari12/11/20242793
api.PointerEvent.getPredictedEvents πŸ“‹Chrome9/10/2019 Safari12/11/20241919
css.at-rules.page πŸ“‹Chrome5/21/2009 Safari12/11/20245683
css.at-rules.page.size πŸ“‹Chrome10/25/2011 Safari12/11/20244796
css.at-rules.page.size.jis-b4 πŸ“‹Chrome5/19/2020 Safari12/11/20241667
css.at-rules.page.size.jis-b5 πŸ“‹Chrome5/19/2020 Safari12/11/20241667
css.properties.line-clamp πŸ“‹Chrome9/2/2010 Safari12/11/20245214
css.properties.ruby-align πŸ“‹Firefox5/12/2015 Safari12/11/20243501
css.properties.ruby-align.center πŸ“‹Firefox5/12/2015 Safari12/11/20243501
css.properties.ruby-align.space-around πŸ“‹Firefox5/12/2015 Safari12/11/20243501
css.properties.ruby-align.space-between πŸ“‹Firefox5/12/2015 Safari12/11/20243501
css.properties.ruby-align.start πŸ“‹Firefox5/12/2015 Safari12/11/20243501
css.properties.ruby-position πŸ“‹Firefox5/12/2015 Safari12/11/20243501
css.properties.ruby-position.over Firefox1/7/2020 Safari12/11/20241800
css.properties.ruby-position.under Firefox1/7/2020 Safari12/11/20241800
css.properties.scrollbar-gutter πŸ“‹Chrome9/21/2021 Safari12/11/20241177
css.properties.scrollbar-gutter.auto πŸ“‹Chrome9/21/2021 Safari12/11/20241177
css.properties.scrollbar-gutter.stable πŸ“‹Chrome9/21/2021 Safari12/11/20241177
css.properties.scrollbar-width πŸ“‹Firefox12/11/2018 Safari12/11/20242192
css.properties.scrollbar-width.auto πŸ“‹Firefox12/11/2018 Safari12/11/20242192
css.properties.scrollbar-width.none πŸ“‹Firefox12/11/2018 Safari12/11/20242192
css.properties.scrollbar-width.thin πŸ“‹Firefox12/11/2018 Safari12/11/20242192
css.properties.text-underline-offset.percentage πŸ“‹Firefox3/10/2020 Safari12/11/20241737
css.properties.text-underline-position.left Chrome12/4/2018 Safari12/11/20242199
css.properties.text-underline-position.right Chrome12/4/2018 Safari12/11/20242199
css.selectors.target-text πŸ“‹Chrome3/2/2021 Safari12/11/20241380

2024/11

API First Browser Date Last Browser Date Days
api.EventSource.worker_support Safari6/7/2010 Firefox11/26/20245286
api.HTMLMediaElement.waitingforkey_event πŸ“‹Chrome12/1/2016 Firefox11/26/20242917
api.Request.Request.init_keepalive_parameter πŸ“‹Chrome4/17/2018 Firefox11/26/20242415
api.Request.keepalive πŸ“‹Chrome4/17/2018 Firefox11/26/20242415
api.WorkerNavigator.permissions πŸ“‹Chrome5/19/2015 Firefox11/26/20243479
api.fetch.init_keepalive_parameter Chrome4/17/2018 Firefox11/26/20242415
css.properties.font-variant-emoji πŸ“‹Firefox12/13/2022 Chrome11/12/2024700

2024/10

API First Browser Date Last Browser Date Days
api.HTMLImageElement.fetchPriority πŸ“‹Chrome5/24/2022 Firefox10/29/2024889
api.HTMLLinkElement.fetchPriority πŸ“‹Chrome5/24/2022 Firefox10/29/2024889
api.HTMLScriptElement.fetchPriority πŸ“‹Chrome5/24/2022 Firefox10/29/2024889
api.HTMLVideoElement.cancelVideoFrameCallback πŸ“‹Chrome5/19/2020 Firefox10/29/20241624
api.HTMLVideoElement.requestVideoFrameCallback πŸ“‹Chrome5/19/2020 Firefox10/29/20241624
api.MediaStreamTrack.getCapabilities πŸ“‹Chrome6/5/2017 Firefox10/29/20242703
api.Notification.silent πŸ“‹Chrome5/19/2015 Firefox10/29/20243451
api.Permissions.permission_camera Chrome1/23/2018 Firefox10/29/20242471
api.Permissions.permission_microphone Chrome1/23/2018 Firefox10/29/20242471
api.Request.Request.init_priority_parameter πŸ“‹Chrome4/26/2022 Firefox10/29/2024917
api.WebGL2RenderingContext.drawingBufferColorSpace πŸ“‹Chrome8/2/2022 Firefox10/29/2024819
api.WebGLRenderingContext.drawingBufferColorSpace πŸ“‹Chrome8/2/2022 Firefox10/29/2024819
html.elements.img.fetchpriority πŸ“‹Chrome4/26/2022 Firefox10/29/2024917
html.elements.link.fetchpriority πŸ“‹Chrome4/26/2022 Firefox10/29/2024917
html.elements.script.fetchpriority πŸ“‹Chrome4/26/2022 Firefox10/29/2024917
css.properties.box-decoration-break πŸ“‹Safari10/22/2013 Chrome10/15/20244011
css.properties.box-decoration-break.clone πŸ“‹Safari10/22/2013 Chrome10/15/20244011
css.properties.box-decoration-break.slice πŸ“‹Safari10/22/2013 Chrome10/15/20244011
css.properties.text-wrap.stable πŸ“‹Firefox12/19/2023 Chrome10/15/2024301
css.properties.text-wrap-mode πŸ“‹Safari3/5/2024 Chrome10/15/2024224
css.properties.text-wrap-mode.nowrap Safari3/5/2024 Chrome10/15/2024224
css.properties.text-wrap-mode.wrap Safari3/5/2024 Chrome10/15/2024224
css.properties.text-wrap-style πŸ“‹Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-style.auto πŸ“‹Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-style.balance πŸ“‹Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-style.stable πŸ“‹Firefox3/19/2024 Chrome10/15/2024210
html.elements.a.text_fragments Chrome2/4/2020 Firefox10/1/20241701

2024/9

API First Browser Date Last Browser Date Days
api.RTCDataChannel.binaryType.blob_value Firefox6/25/2013 Chrome9/17/20244102
api.ContentVisibilityAutoStateChangeEvent πŸ“‹Chrome11/29/2022 Safari9/16/2024657
api.ContentVisibilityAutoStateChangeEvent.ContentVisibilityAutoStateChangeEvent πŸ“‹Chrome11/29/2022 Safari9/16/2024657
api.ContentVisibilityAutoStateChangeEvent.skipped πŸ“‹Chrome11/29/2022 Safari9/16/2024657
api.Element.ariaBrailleLabel πŸ“‹Chrome10/25/2022 Safari9/16/2024692
api.Element.ariaBrailleRoleDescription πŸ“‹Chrome10/25/2022 Safari9/16/2024692
api.Element.contentvisibilityautostatechange_event πŸ“‹Chrome11/29/2022 Safari9/16/2024657
api.Element.getHTML πŸ“‹Chrome5/14/2024 Safari9/16/2024125
api.ElementInternals.ariaBrailleLabel πŸ“‹Chrome10/25/2022 Safari9/16/2024692
api.ElementInternals.ariaBrailleRoleDescription πŸ“‹Chrome10/25/2022 Safari9/16/2024692
api.GeolocationCoordinates.toJSON πŸ“‹Chrome6/11/2024 Safari9/16/202497
api.GeolocationPosition.toJSON πŸ“‹Chrome6/11/2024 Safari9/16/202497
api.HTMLCanvasElement.getContext.2d_context.options_willReadFrequently_parameter πŸ“‹Firefox3/18/2014 Safari9/16/20243835
api.HTMLTemplateElement.shadowRootClonable πŸ“‹Chrome4/16/2024 Safari9/16/2024153
api.HTMLTemplateElement.shadowRootDelegatesFocus πŸ“‹Firefox2/20/2024 Safari9/16/2024209
api.HTMLTemplateElement.shadowRootSerializable πŸ“‹Chrome5/14/2024 Safari9/16/2024125
api.Navigator.cookieEnabled πŸ“‹Firefox11/9/2004 Safari9/16/20247251
api.ShadowRoot.getHTML πŸ“‹Chrome5/14/2024 Safari9/16/2024125
api.ShadowRoot.serializable πŸ“‹Chrome5/14/2024 Safari9/16/2024125
api.URL.parse_static πŸ“‹Firefox5/14/2024 Safari9/16/2024125
css.properties.backdrop-filter πŸ“‹Chrome7/30/2019 Safari9/16/20241875
css.properties.content-visibility πŸ“‹Chrome8/25/2020 Safari9/16/20241483
css.properties.content-visibility.auto πŸ“‹Chrome8/25/2020 Safari9/16/20241483
css.properties.content-visibility.hidden πŸ“‹Chrome8/25/2020 Safari9/16/20241483
css.properties.content-visibility.visible πŸ“‹Chrome8/25/2020 Safari9/16/20241483
css.properties.offset-path.basic_shape πŸ“‹Chrome8/15/2023 Safari9/16/2024398
css.properties.offset-path.border-box πŸ“‹Chrome8/15/2023 Safari9/16/2024398
css.properties.offset-path.content-box πŸ“‹Chrome8/15/2023 Safari9/16/2024398
css.properties.offset-path.fill-box πŸ“‹Chrome8/15/2023 Safari9/16/2024398
css.properties.offset-path.none πŸ“‹Firefox1/7/2020 Safari9/16/20241714
css.properties.offset-path.padding-box πŸ“‹Chrome8/15/2023 Safari9/16/2024398
css.properties.offset-path.stroke-box πŸ“‹Chrome8/15/2023 Safari9/16/2024398
css.properties.offset-path.view-box πŸ“‹Chrome8/15/2023 Safari9/16/2024398
css.types.color.color.relative_syntax πŸ“‹Chrome10/31/2023 Safari9/16/2024321
css.types.color.hsl.mixed_type_parameters Chrome1/23/2024 Safari9/16/2024237
css.types.color.hsl.relative_syntax πŸ“‹Chrome5/14/2024 Safari9/16/2024125
css.types.color.hwb.mixed_type_parameters Chrome1/23/2024 Safari9/16/2024237
css.types.color.hwb.relative_syntax πŸ“‹Chrome5/14/2024 Safari9/16/2024125
css.types.color.lch.relative_syntax πŸ“‹Chrome10/31/2023 Safari9/16/2024321
css.types.color.oklch.relative_syntax πŸ“‹Chrome10/31/2023 Safari9/16/2024321
css.types.color.rgb.mixed_type_parameters Firefox5/9/2023 Safari9/16/2024496
css.types.color.rgb.relative_syntax πŸ“‹Chrome2/20/2024 Safari9/16/2024209
api.EncodedVideoChunk πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.EncodedVideoChunk πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.byteLength πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.copyTo πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.duration πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.timestamp πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.type πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.HTMLDetailsElement.name πŸ“‹Chrome12/5/2023 Firefox9/3/2024273
api.VideoColorSpace πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.VideoColorSpace πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.fullRange πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.matrix πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.primaries πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.toJSON πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.transfer πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.VideoDecoder πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.close πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.configure πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.decode πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.decodeQueueSize πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.dequeue_event πŸ“‹Chrome9/27/2022 Firefox9/3/2024707
api.VideoDecoder.flush πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.isConfigSupported_static πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.reset πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.state πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.VideoEncoder πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.close πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.configure πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.dequeue_event πŸ“‹Chrome9/27/2022 Firefox9/3/2024707
api.VideoEncoder.encode πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.encodeQueueSize πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.flush πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.isConfigSupported_static πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.reset πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.state πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.VideoFrame πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.allocationSize πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.clone πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.close πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.codedHeight πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.codedRect πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.codedWidth πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.colorSpace πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.copyTo πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.displayHeight πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.displayWidth πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.duration πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.format πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.timestamp πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.visibleRect πŸ“‹Chrome9/21/2021 Firefox9/3/20241078
css.properties.hyphens.language_czech Safari3/21/2016 Firefox9/3/20243088
html.elements.details.name Chrome12/5/2023 Firefox9/3/2024273

2024/8

API First Browser Date Last Browser Date Days
api.MediaSession.setActionHandler.skipad_type Firefox10/20/2020 Chrome8/20/20241400
api.CSSStartingStyleRule πŸ“‹Chrome9/12/2023 Firefox8/6/2024329
api.RTCDTMFSender.canInsertDTMF πŸ“‹Chrome5/21/2013 Firefox8/6/20244095
api.SubtleCrypto.exportKey.ed25519 πŸ“‹Chrome5/2/2023 Firefox8/6/2024462
api.SubtleCrypto.generateKey.ed25519 πŸ“‹Chrome5/2/2023 Firefox8/6/2024462
api.SubtleCrypto.importKey.ed25519 πŸ“‹Chrome5/2/2023 Firefox8/6/2024462
api.SubtleCrypto.sign.ed25519 πŸ“‹Chrome5/2/2023 Firefox8/6/2024462
api.SubtleCrypto.verify.ed25519 πŸ“‹Chrome5/2/2023 Firefox8/6/2024462
api.TextEvent πŸ“‹Safari10/26/2007 Firefox8/6/20246129
api.TextEvent.data πŸ“‹Safari10/26/2007 Firefox8/6/20246129
api.TextEvent.initTextEvent πŸ“‹Safari10/26/2007 Firefox8/6/20246129
css.at-rules.starting-style πŸ“‹Chrome9/12/2023 Firefox8/6/2024329
css.properties.transition.transition-behavior Chrome9/12/2023 Firefox8/6/2024329
css.properties.transition-behavior πŸ“‹Chrome9/12/2023 Firefox8/6/2024329
javascript.regular_expressions.named_capturing_group.duplicate_named_capturing_groups Safari9/18/2023 Firefox8/6/2024323

2024/7

API First Browser Date Last Browser Date Days
css.properties.align-content.flex_context.safe_unsafe Firefox10/23/2018 Safari7/29/20242106
css.properties.align-items.flex_context.safe_unsafe Firefox10/23/2018 Safari7/29/20242106
css.properties.align-self.flex_context.safe_unsafe Firefox10/23/2018 Safari7/29/20242106
css.properties.justify-content.flex_context.safe_unsafe Firefox10/23/2018 Safari7/29/20242106
css.properties.font-size-adjust πŸ“‹Firefox6/17/2008 Chrome7/23/20245880
css.properties.font-size-adjust.from-font πŸ“‹Safari9/18/2023 Chrome7/23/2024309
css.properties.font-size-adjust.none πŸ“‹Firefox6/17/2008 Chrome7/23/20245880
css.properties.font-size-adjust.two-values Firefox9/7/2021 Chrome7/23/20241050
api.CSS.registerProperty_static πŸ“‹Chrome10/22/2019 Firefox7/9/20241722
api.CSSPropertyRule πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.inherits πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.initialValue πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.name πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.syntax πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
api.CSSScopeRule πŸ“‹Chrome10/10/2023 Firefox7/9/2024273
api.CSSScopeRule.end πŸ“‹Chrome10/10/2023 Firefox7/9/2024273
api.CSSScopeRule.start πŸ“‹Chrome10/10/2023 Firefox7/9/2024273
api.Document.parseHTMLUnsafe_static πŸ“‹Safari3/5/2024 Firefox7/9/2024126
api.HTMLBaseElement.href.forbid_special_characters Chrome9/5/2017 Firefox7/9/20242499
api.RTCRtpReceiver.getParameters πŸ“‹Chrome6/5/2017 Firefox7/9/20242591
api.RTCRtpReceiver.getParameters.return_object_property_codecs πŸ“‹Safari9/19/2017 Firefox7/9/20242485
api.RTCRtpSender.getParameters.return_object_property_codecs πŸ“‹Safari9/19/2017 Firefox7/9/20242485
api.RTCRtpSender.setParameters.parameters_codecs_parameter πŸ“‹Chrome9/4/2018 Firefox7/9/20242135
api.RTCRtpTransceiver.setCodecPreferences πŸ“‹Chrome7/30/2019 Firefox7/9/20241806
css.at-rules.property πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.property.inherits πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.property.initial-value πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.property.syntax πŸ“‹Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.scope πŸ“‹Chrome10/10/2023 Firefox7/9/2024273
css.properties.content.alt_text Chrome9/10/2019 Firefox7/9/20241764
css.types.calc.color_component Safari3/27/2023 Firefox7/9/2024470
css.types.color.lab.relative_syntax πŸ“‹Safari3/27/2023 Firefox7/9/2024470
css.types.color.oklab.relative_syntax πŸ“‹Safari3/27/2023 Firefox7/9/2024470
javascript.builtins.ArrayBuffer.ArrayBuffer.maxByteLength_option πŸ“‹Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.ArrayBuffer.maxByteLength πŸ“‹Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.ArrayBuffer.resizable πŸ“‹Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.ArrayBuffer.resize πŸ“‹Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.SharedArrayBuffer.maxByteLength_option πŸ“‹Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.grow πŸ“‹Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.growable πŸ“‹Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.maxByteLength πŸ“‹Chrome3/7/2023 Firefox7/9/2024490

2024/6

API First Browser Date Last Browser Date Days
api.Clipboard.read πŸ“‹Chrome7/30/2019 Firefox6/11/20241778
api.Clipboard.type_image-png Chrome7/30/2019 Firefox6/11/20241778
api.Clipboard.type_text-html Safari3/24/2020 Firefox6/11/20241540
api.Clipboard.type_text-plain Chrome7/30/2019 Firefox6/11/20241778
api.Clipboard.write πŸ“‹Chrome7/30/2019 Firefox6/11/20241778
api.ClipboardItem πŸ“‹Chrome7/30/2019 Firefox6/11/20241778
api.ClipboardItem.getType πŸ“‹Chrome7/30/2019 Firefox6/11/20241778
api.ClipboardItem.types πŸ“‹Chrome7/30/2019 Firefox6/11/20241778
api.VTTCue.text.all_html_character_references Chrome2/4/2020 Firefox6/11/20241589
css.types.gradient.conic-gradient.hue_interpolation_method Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.conic-gradient.interpolation_color_space Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.linear-gradient.hue_interpolation_method Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.linear-gradient.interpolation_color_space Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.radial-gradient.hue_interpolation_method Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.radial-gradient.interpolation_color_space Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.repeating-conic-gradient.hue_interpolation_method Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.repeating-conic-gradient.interpolation_color_space Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.repeating-linear-gradient.hue_interpolation_method Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.repeating-linear-gradient.interpolation_color_space Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.repeating-radial-gradient.hue_interpolation_method Safari12/13/2022 Firefox6/11/2024546
css.types.gradient.repeating-radial-gradient.interpolation_color_space Safari12/13/2022 Firefox6/11/2024546
html.elements.base.href.forbid_data_javascript_urls Chrome4/19/2017 Firefox6/11/20242610
html.elements.link.rel.dns-prefetch πŸ“‹Safari6/7/2010 Firefox6/11/20245118
javascript.builtins.Set.difference πŸ“‹Safari9/18/2023 Firefox6/11/2024267
javascript.builtins.Set.intersection πŸ“‹Safari9/18/2023 Firefox6/11/2024267
javascript.builtins.Set.isDisjointFrom πŸ“‹Safari9/18/2023 Firefox6/11/2024267
javascript.builtins.Set.isSubsetOf πŸ“‹Safari9/18/2023 Firefox6/11/2024267
javascript.builtins.Set.isSupersetOf πŸ“‹Safari9/18/2023 Firefox6/11/2024267
javascript.builtins.Set.symmetricDifference πŸ“‹Safari9/18/2023 Firefox6/11/2024267
javascript.builtins.Set.union πŸ“‹Safari9/18/2023 Firefox6/11/2024267

2024/5

API First Browser Date Last Browser Date Days
api.CustomStateSet πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.@@iterator πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.add πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.clear πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.delete πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.entries πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.forEach πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.has πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.keys πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.size πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.values πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.ElementInternals.states πŸ“‹Chrome4/13/2021 Firefox5/14/20241127
api.IDBFactory.databases πŸ“‹Chrome1/29/2019 Firefox5/14/20241932
api.IDBTransaction.durability πŸ“‹Chrome5/19/2020 Firefox5/14/20241456
api.Navigator.wakeLock πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.RTCIceCandidate.address πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.component πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.foundation πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.port πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.priority πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.protocol πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.relatedAddress πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.relatedPort πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.tcpType πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.type πŸ“‹Chrome4/23/2019 Firefox5/14/20241848
api.WakeLock πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.WakeLock.request πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.WakeLockSentinel πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.WakeLockSentinel.release πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.WakeLockSentinel.release_event πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.WakeLockSentinel.released πŸ“‹Chrome11/17/2020 Firefox5/14/20241274
api.WakeLockSentinel.type πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.WebSocket.WebSocket.url_parameter_http_https_relative Safari1/22/2024 Chrome5/14/2024113
css.properties.zoom πŸ“‹Safari3/18/2008 Firefox5/14/20245901
css.selectors.state πŸ“‹Safari3/5/2024 Firefox5/14/202470
css.types.mod πŸ“‹Safari3/14/2022 Chrome5/14/2024792
css.types.rem πŸ“‹Safari3/14/2022 Chrome5/14/2024792
css.types.round πŸ“‹Safari3/14/2022 Chrome5/14/2024792
html.elements.iframe.allow.screen-wake-lock πŸ“‹Chrome7/27/2020 Firefox5/14/20241387
api.CSSImportRule.supportsText πŸ“‹Firefox6/6/2023 Safari5/13/2024342
css.properties.text-wrap.balance πŸ“‹Chrome5/30/2023 Safari5/13/2024349
css.types.color.light-dark πŸ“‹Firefox11/21/2023 Safari5/13/2024174

2024/4

API First Browser Date Last Browser Date Days
api.AbortSignal.timeout_static πŸ“‹Firefox5/3/2022 Chrome4/16/2024714
api.Clipboard.readText πŸ“‹Chrome4/17/2018 Firefox4/16/20242191
api.Element.attachShadow.options_clonable_parameter πŸ“‹Firefox2/20/2024 Chrome4/16/202456
api.Element.setHTMLUnsafe πŸ“‹Firefox2/20/2024 Chrome4/16/202456
api.HTMLButtonElement.popoverTargetAction πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLButtonElement.popoverTargetElement πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.beforetoggle_event πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.beforetoggle_event.popover_elements πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.hidePopover πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.popover πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.showPopover πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.togglePopover πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.togglePopover.returns_boolean Chrome8/15/2023 Firefox4/16/2024245
api.HTMLElement.toggle_event.popover_elements πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLInputElement.popoverTargetAction πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.HTMLInputElement.popoverTargetElement πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
api.RTCDtlsTransport.iceTransport πŸ“‹Chrome1/29/2019 Firefox4/16/20241904
api.RTCIceTransport πŸ“‹Safari9/19/2017 Firefox4/16/20242401
api.RTCIceTransport.gatheringState πŸ“‹Safari9/19/2017 Firefox4/16/20242401
api.RTCIceTransport.gatheringstatechange_event πŸ“‹Chrome6/4/2019 Firefox4/16/20241778
api.RTCIceTransport.state πŸ“‹Safari9/19/2017 Firefox4/16/20242401
api.RTCIceTransport.statechange_event πŸ“‹Chrome6/4/2019 Firefox4/16/20241778
api.ShadowRoot.clonable πŸ“‹Firefox2/20/2024 Chrome4/16/202456
api.ShadowRoot.setHTMLUnsafe πŸ“‹Firefox2/20/2024 Chrome4/16/202456
css.properties.align-content.block_context πŸ“‹Safari3/5/2024 Firefox4/16/202442
css.properties.direction.vertical_slider_direction Safari5/18/2023 Chrome4/16/2024334
css.properties.transform-box.content-box πŸ“‹Safari3/24/2020 Firefox4/16/20241484
css.properties.transform-box.stroke-box πŸ“‹Safari3/24/2020 Firefox4/16/20241484
css.properties.writing-mode.vertical_oriented_form_controls Firefox11/21/2023 Chrome4/16/2024147
css.selectors.backdrop.popover Chrome5/30/2023 Firefox4/16/2024322
css.selectors.popover-open πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
html.elements.button.popovertarget πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
html.elements.button.popovertargetaction πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
html.elements.input.popovertarget πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
html.elements.input.popovertargetaction πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
html.elements.input.type_range.vertical_orientation Safari5/18/2023 Chrome4/16/2024334
html.global_attributes.popover πŸ“‹Chrome5/30/2023 Firefox4/16/2024322
javascript.builtins.Intl.Segmenter πŸ“‹Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.Segmenter πŸ“‹Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.resolvedOptions πŸ“‹Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.segment πŸ“‹Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.supportedLocalesOf πŸ“‹Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segments πŸ“‹Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segments.@@iterator πŸ“‹Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segments.containing πŸ“‹Chrome11/17/2020 Firefox4/16/20241246

2024/3

API First Browser Date Last Browser Date Days
api.AbortSignal.any_static πŸ“‹Chrome8/15/2023 Firefox3/19/2024217
api.CSSKeyframesRule.length πŸ“‹Firefox1/17/2023 Chrome3/19/2024427
css.properties.paint-order πŸ“‹Safari9/19/2017 Chrome3/19/20242373
css.properties.text-wrap.nowrap πŸ“‹Chrome5/30/2023 Firefox3/19/2024294
css.properties.text-wrap.wrap πŸ“‹Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse πŸ“‹Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.break-spaces πŸ“‹Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.collapse πŸ“‹Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.preserve πŸ“‹Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.preserve-breaks πŸ“‹Chrome5/30/2023 Firefox3/19/2024294
api.DOMMatrixReadOnly.scaleNonUniform πŸ“‹Firefox10/14/2014 Safari3/5/20243430
api.Element.ariaDescription πŸ“‹Chrome5/19/2020 Safari3/5/20241386
api.Element.checkVisibility πŸ“‹Chrome9/2/2022 Safari3/5/2024550
api.Element.checkVisibility.options_checkOpacity_parameter πŸ“‹Chrome9/2/2022 Safari3/5/2024550
api.Element.checkVisibility.options_checkVisibilityCSS_parameter πŸ“‹Chrome9/2/2022 Safari3/5/2024550
api.Element.checkVisibility.options_contentVisibilityAuto_parameter πŸ“‹Chrome1/23/2024 Safari3/5/202442
api.Element.checkVisibility.options_opacityProperty_parameter πŸ“‹Chrome1/23/2024 Safari3/5/202442
api.Element.checkVisibility.options_visibilityProperty_parameter πŸ“‹Chrome1/23/2024 Safari3/5/202442
api.HTMLInputElement.showPicker.date_input Chrome3/1/2022 Safari3/5/2024735
api.HTMLInputElement.showPicker.datetime_local_input Chrome3/1/2022 Safari3/5/2024735
api.ImageCapture πŸ“‹Firefox1/13/2015 Safari3/5/20243339
api.ImageCapture.ImageCapture πŸ“‹Firefox1/13/2015 Safari3/5/20243339
api.ImageCapture.takePhoto πŸ“‹Firefox1/13/2015 Safari3/5/20243339
api.ImageCapture.track πŸ“‹Firefox1/13/2015 Safari3/5/20243339
api.SVGFESpecularLightingElement.kernelUnitLengthX πŸ“‹Firefox6/17/2008 Safari3/5/20245740
api.SVGFESpecularLightingElement.kernelUnitLengthY πŸ“‹Firefox6/17/2008 Safari3/5/20245740
css.properties.text-decoration-thickness.percentage Firefox3/10/2020 Safari3/5/20241456
css.properties.text-wrap πŸ“‹Chrome5/30/2023 Safari3/5/2024280
css.selectors.backdrop.inherit_from_originating_element Firefox11/21/2023 Safari3/5/2024105
javascript.builtins.ArrayBuffer.detached πŸ“‹Chrome5/30/2023 Safari3/5/2024280
javascript.builtins.ArrayBuffer.transfer πŸ“‹Chrome5/30/2023 Safari3/5/2024280
javascript.builtins.ArrayBuffer.transferToFixedLength πŸ“‹Chrome5/30/2023 Safari3/5/2024280
javascript.builtins.Map.groupBy πŸ“‹Chrome9/12/2023 Safari3/5/2024175
javascript.builtins.Object.groupBy πŸ“‹Chrome9/12/2023 Safari3/5/2024175
javascript.builtins.Promise.withResolvers πŸ“‹Chrome10/31/2023 Safari3/5/2024126

2024/2

API First Browser Date Last Browser Date Days
api.HTMLTemplateElement.shadowRootMode πŸ“‹Chrome3/7/2023 Firefox2/20/2024350
html.elements.template.shadowrootmode πŸ“‹Chrome3/7/2023 Firefox2/20/2024350

2024/1

API First Browser Date Last Browser Date Days
api.HTMLVideoElement.disablePictureInPicture πŸ“‹Chrome9/4/2018 Firefox1/23/20241967
css.properties.offset-path.ray πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.properties.offset-path.url πŸ“‹Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.properties.offset-position.auto πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.properties.offset-position.bottom πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.properties.offset-position.center πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.properties.offset-position.left πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.properties.offset-position.normal πŸ“‹Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.right πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.properties.offset-position.top πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.types.basic-shape.rect πŸ“‹Chrome8/15/2023 Firefox1/23/2024161
css.types.basic-shape.xywh πŸ“‹Chrome8/15/2023 Firefox1/23/2024161
css.types.ray πŸ“‹Safari9/12/2022 Firefox1/23/2024498
css.types.ray.position Chrome8/15/2023 Firefox1/23/2024161
css.types.ray.size Chrome8/15/2023 Firefox1/23/2024161
html.elements.hr.hr_in_select Safari9/18/2023 Firefox1/23/2024127
html.elements.select.hr_in_select Safari9/18/2023 Firefox1/23/2024127
html.elements.video.disablepictureinpicture πŸ“‹Chrome9/4/2018 Firefox1/23/20241967
javascript.builtins.Array.fromAsync πŸ“‹Safari3/27/2023 Chrome1/23/2024302

2023/12

API First Browser Date Last Browser Date Days
api.HTMLIFrameElement.loading πŸ“‹Chrome9/10/2019 Firefox12/19/20231561
css.selectors.has πŸ“‹Safari3/14/2022 Firefox12/19/2023645
html.elements.iframe.loading πŸ“‹Chrome9/10/2019 Firefox12/19/20231561
api.CanvasRenderingContext2D.reset πŸ“‹Chrome3/1/2022 Safari12/11/2023650
api.HTMLLinkElement.imageSizes πŸ“‹Chrome3/12/2019 Safari12/11/20231735
api.HTMLLinkElement.imageSrcset πŸ“‹Chrome3/12/2019 Safari12/11/20231735
api.HTMLMediaElement.preservesPitch πŸ“‹Chrome10/20/2020 Safari12/11/20231147
api.OffscreenCanvasRenderingContext2D.reset πŸ“‹Chrome3/1/2022 Safari12/11/2023650
api.SVGImageElement.crossOrigin πŸ“‹Firefox6/6/2023 Safari12/11/2023188
api.createImageBitmap.svgimageelement_as_source_image Chrome6/5/2017 Safari12/11/20232380
css.properties.counter-set πŸ“‹Firefox7/9/2019 Safari12/11/20231616
css.properties.counter-set.list-item πŸ“‹Firefox7/9/2019 Safari12/11/20231616
css.properties.counter-set.none πŸ“‹Firefox7/9/2019 Safari12/11/20231616
css.selectors.nesting πŸ“‹Firefox8/29/2023 Safari12/11/2023104
css.types.easing-function.linear-function πŸ“‹Firefox4/11/2023 Safari12/11/2023244
css.types.length.cap Firefox2/8/2022 Safari12/11/2023671
html.elements.link.imagesizes πŸ“‹Chrome3/12/2019 Safari12/11/20231735
html.elements.link.imagesrcset πŸ“‹Chrome3/12/2019 Safari12/11/20231735
javascript.builtins.Intl.PluralRules.PluralRules.options_parameter.options_roundingMode_parameter Firefox8/1/2023 Safari12/11/2023132
api.FontFaceSet.check πŸ“‹Firefox9/22/2015 Chrome12/5/20232996
api.URL.canParse_static πŸ“‹Firefox7/4/2023 Chrome12/5/2023154
css.at-rules.media.scripting πŸ“‹Firefox5/9/2023 Chrome12/5/2023210
css.properties.background-clip.text πŸ“‹Firefox9/20/2016 Chrome12/5/20232632
css.properties.mask πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-clip πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite.add πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite.exclude πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite.intersect πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite.subtract πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-image πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-mode πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-mode.alpha πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-mode.luminance πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-mode.match-source πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-origin πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-position πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-repeat πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-size πŸ“‹Firefox4/19/2017 Chrome12/5/20232421
css.selectors.dir πŸ“‹Firefox9/20/2016 Chrome12/5/20232632
css.types.exp πŸ“‹Safari3/14/2022 Chrome12/5/2023631
css.types.hypot πŸ“‹Safari3/14/2022 Chrome12/5/2023631
css.types.log πŸ“‹Safari3/14/2022 Chrome12/5/2023631
css.types.pow πŸ“‹Safari3/14/2022 Chrome12/5/2023631
css.types.sqrt πŸ“‹Safari3/14/2022 Chrome12/5/2023631

2023/11

API First Browser Date Last Browser Date Days
api.Navigator.userActivation πŸ“‹Chrome1/29/2019 Firefox11/21/20231757
api.PublicKeyCredential.authenticatorAttachment πŸ“‹Chrome2/1/2022 Firefox11/21/2023658
api.ToggleEvent πŸ“‹Chrome5/30/2023 Firefox11/21/2023175
api.ToggleEvent.ToggleEvent πŸ“‹Chrome5/30/2023 Firefox11/21/2023175
api.ToggleEvent.newState πŸ“‹Chrome5/30/2023 Firefox11/21/2023175
api.ToggleEvent.oldState πŸ“‹Chrome5/30/2023 Firefox11/21/2023175
api.UserActivation πŸ“‹Chrome1/29/2019 Firefox11/21/20231757
api.UserActivation.hasBeenActive πŸ“‹Chrome1/29/2019 Firefox11/21/20231757
api.UserActivation.isActive πŸ“‹Chrome1/29/2019 Firefox11/21/20231757
css.types.length.lh πŸ“‹Chrome1/10/2023 Firefox11/21/2023315
css.types.length.rlh πŸ“‹Chrome3/7/2023 Firefox11/21/2023259

2023/10

API First Browser Date Last Browser Date Days
api.BeforeUnloadEvent.returnValue πŸ“‹Firefox11/29/2005 Chrome10/31/20236545
api.Document.hasStorageAccess πŸ“‹Safari4/12/2018 Chrome10/31/20232028
api.Document.requestStorageAccess πŸ“‹Safari4/12/2018 Chrome10/31/20232028
api.Window.beforeunload_event.event_returnvalue_activation Firefox8/16/2011 Chrome10/31/20234459
api.Window.beforeunload_event.preventdefault_activation Firefox8/16/2011 Chrome10/31/20234459
css.properties.clip-path.fill-box πŸ“‹Firefox1/24/2017 Chrome10/31/20232471
css.properties.clip-path.stroke-box πŸ“‹Firefox1/24/2017 Chrome10/31/20232471
css.properties.clip-path.view-box πŸ“‹Firefox1/7/2020 Chrome10/31/20231393
css.selectors.user-invalid πŸ“‹Firefox4/19/2021 Chrome10/31/2023925
css.selectors.user-valid πŸ“‹Firefox4/19/2021 Chrome10/31/2023925
api.AuthenticatorAttestationResponse.getAuthenticatorData πŸ“‹Chrome8/25/2020 Firefox10/24/20231155
api.AuthenticatorAttestationResponse.getPublicKey πŸ“‹Chrome8/25/2020 Firefox10/24/20231155
api.AuthenticatorAttestationResponse.getPublicKeyAlgorithm πŸ“‹Chrome8/25/2020 Firefox10/24/20231155
api.AuthenticatorAttestationResponse.getTransports πŸ“‹Chrome4/23/2019 Firefox10/24/20231645
api.Element.ariaAtomic πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaAutoComplete πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaBusy πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaChecked πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaColCount πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaColIndex πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaColSpan πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaCurrent πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaDisabled πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaExpanded πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaHasPopup πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaHidden πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaInvalid πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaKeyShortcuts πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaLabel πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaLevel πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaLive πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaModal πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaMultiLine πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaMultiSelectable πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaOrientation πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaPlaceholder πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaPosInSet πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaPressed πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaReadOnly πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaRelevant Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaRequired πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaRoleDescription πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaRowCount πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaRowIndex πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaRowSpan πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaSelected πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaSetSize πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaSort πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaValueMax πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaValueMin πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaValueNow πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.ariaValueText πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.Element.role πŸ“‹Safari3/25/2019 Firefox10/24/20231674
api.ElementInternals.ariaAtomic πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaAutoComplete πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaBusy πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaChecked πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaColCount πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaColIndex πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaColSpan πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaCurrent πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaDisabled πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaExpanded πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaHasPopup πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaHidden πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaInvalid πŸ“‹Chrome5/24/2022 Firefox10/24/2023518
api.ElementInternals.ariaKeyShortcuts πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaLabel πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaLevel πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaLive πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaModal πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaMultiLine πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaMultiSelectable πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaOrientation πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaPlaceholder πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaPosInSet πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaPressed πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaReadOnly πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRelevant Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRequired πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRoleDescription πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRowCount πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRowIndex πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRowSpan πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaSelected πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaSetSize πŸ“‹Chrome7/27/2020 Firefox10/24/20231184
api.ElementInternals.ariaSort πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueMax πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueMin πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueNow πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueText πŸ“‹Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.role πŸ“‹Chrome6/21/2022 Firefox10/24/2023490
api.PublicKeyCredential.isConditionalMediationAvailable_static πŸ“‹Safari9/12/2022 Firefox10/24/2023407
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_hkdf πŸ“‹Chrome3/3/2015 Firefox10/24/20233157
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_pbkdf2 πŸ“‹Chrome3/3/2015 Firefox10/24/20233157
javascript.builtins.String.isWellFormed πŸ“‹Chrome3/7/2023 Firefox10/24/2023231
javascript.builtins.String.toWellFormed πŸ“‹Chrome3/7/2023 Firefox10/24/2023231
api.TextMetrics.alphabeticBaseline πŸ“‹Safari4/12/2018 Chrome10/10/20232007
api.TextMetrics.hangingBaseline πŸ“‹Safari4/12/2018 Chrome10/10/20232007
api.TextMetrics.ideographicBaseline πŸ“‹Safari4/12/2018 Chrome10/10/20232007
css.properties.clear.inline-end πŸ“‹Firefox8/8/2017 Chrome10/10/20232254
css.properties.clear.inline-start πŸ“‹Firefox8/8/2017 Chrome10/10/20232254
css.properties.float.inline-end πŸ“‹Firefox8/8/2017 Chrome10/10/20232254
css.properties.float.inline-start πŸ“‹Firefox8/8/2017 Chrome10/10/20232254
css.properties.resize.block Firefox10/23/2018 Chrome10/10/20231813
css.properties.resize.inline Firefox10/23/2018 Chrome10/10/20231813
css.properties.transform-box.border-box πŸ“‹Firefox8/8/2017 Chrome10/10/20232254
html.elements.search πŸ“‹Safari9/18/2023 Chrome10/10/202322

2023/9

API First Browser Date Last Browser Date Days
api.TextMetrics.emHeightAscent πŸ“‹Safari4/12/2018 Firefox9/26/20231993
api.TextMetrics.emHeightDescent πŸ“‹Safari4/12/2018 Firefox9/26/20231993
api.CSSContainerRule.containerName πŸ“‹Firefox2/14/2023 Safari9/18/2023216
api.CSSContainerRule.containerQuery πŸ“‹Firefox2/14/2023 Safari9/18/2023216
api.CSSCounterStyleRule πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.additiveSymbols πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.fallback πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.name πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.negative πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.pad πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.prefix πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.range πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.speakAs πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.suffix πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.symbols πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CSSCounterStyleRule.system πŸ“‹Firefox10/14/2014 Safari9/18/20233261
api.CanvasRenderingContext2D.drawImage.SVGImageElement_source_image Chrome6/5/2017 Safari9/18/20232296
api.CredentialsContainer.preventSilentAccess πŸ“‹Chrome7/25/2017 Safari9/18/20232246
api.CustomElementRegistry.getName πŸ“‹Firefox8/1/2023 Safari9/18/202348
api.DeviceMotionEvent πŸ“‹Firefox8/16/2011 Safari9/18/20234416
api.DeviceMotionEvent.acceleration πŸ“‹Firefox8/16/2011 Safari9/18/20234416
api.DeviceMotionEvent.accelerationIncludingGravity πŸ“‹Firefox8/16/2011 Safari9/18/20234416
api.DeviceMotionEvent.interval πŸ“‹Firefox8/16/2011 Safari9/18/20234416
api.DeviceMotionEvent.rotationRate πŸ“‹Firefox8/16/2011 Safari9/18/20234416
api.DeviceOrientationEvent πŸ“‹Chrome10/19/2010 Safari9/18/20234717
api.DeviceOrientationEvent.absolute πŸ“‹Chrome10/19/2010 Safari9/18/20234717
api.DeviceOrientationEvent.alpha πŸ“‹Chrome10/19/2010 Safari9/18/20234717
api.DeviceOrientationEvent.beta πŸ“‹Chrome10/19/2010 Safari9/18/20234717
api.DeviceOrientationEvent.gamma πŸ“‹Chrome10/19/2010 Safari9/18/20234717
api.Headers.getSetCookie πŸ“‹Firefox4/11/2023 Safari9/18/2023160
api.OffscreenCanvas.getContext.webgl2_context Chrome9/4/2018 Safari9/18/20231840
api.OffscreenCanvas.getContext.webgl_context Chrome9/4/2018 Safari9/18/20231840
api.ReadableStreamDefaultReader.releaseLock.reject_pending_read_request Firefox6/28/2022 Safari9/18/2023447
api.Response.json_static πŸ“‹Chrome9/2/2022 Safari9/18/2023381
api.Selection.removeRange πŸ“‹Firefox11/9/2004 Safari9/18/20236887
api.StorageManager.estimate πŸ“‹Chrome9/5/2017 Safari9/18/20232204
api.URLSearchParams.delete.value_parameter Firefox7/4/2023 Safari9/18/202376
api.URLSearchParams.has.value_parameter Firefox7/4/2023 Safari9/18/202376
api.URLSearchParams.size πŸ“‹Firefox4/11/2023 Safari9/18/2023160
api.Window.devicemotion_event πŸ“‹Firefox8/16/2011 Safari9/18/20234416
api.Window.deviceorientation_event πŸ“‹Chrome10/19/2010 Safari9/18/20234717
api.createImageBitmap.options_premultiplyAlpha_parameter Chrome7/20/2016 Safari9/18/20232616
css.at-rules.counter-style πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.additive-symbols πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.fallback πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.negative πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.pad πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.prefix πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.range πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.suffix πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.symbols πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.counter-style.system πŸ“‹Firefox10/14/2014 Safari9/18/20233261
css.at-rules.font-face.size-adjust πŸ“‹Chrome7/20/2021 Safari9/18/2023790
css.at-rules.font-face.src.tech_keyword Firefox11/15/2022 Safari9/18/2023307
css.at-rules.media.overflow-block πŸ“‹Firefox3/19/2019 Safari9/18/20231644
css.at-rules.media.overflow-inline πŸ“‹Firefox3/19/2019 Safari9/18/20231644
css.at-rules.media.update πŸ“‹Firefox6/28/2022 Safari9/18/2023447
css.at-rules.supports.font-format Firefox10/18/2022 Safari9/18/2023335
css.at-rules.supports.font-tech Firefox10/18/2022 Safari9/18/2023335
css.properties.background-image.image-set πŸ“‹Firefox6/1/2021 Safari9/18/2023839
css.properties.contain-intrinsic-block-size πŸ“‹Chrome10/19/2021 Safari9/18/2023699
css.properties.contain-intrinsic-block-size.none πŸ“‹Chrome2/1/2022 Safari9/18/2023594
css.properties.contain-intrinsic-height πŸ“‹Chrome10/19/2021 Safari9/18/2023699
css.properties.contain-intrinsic-height.none πŸ“‹Chrome2/1/2022 Safari9/18/2023594
css.properties.contain-intrinsic-inline-size πŸ“‹Chrome10/19/2021 Safari9/18/2023699
css.properties.contain-intrinsic-inline-size.none πŸ“‹Chrome2/1/2022 Safari9/18/2023594
css.properties.contain-intrinsic-size πŸ“‹Chrome5/19/2020 Safari9/18/20231217
css.properties.contain-intrinsic-size.auto_none Firefox8/29/2023 Safari9/18/202320
css.properties.contain-intrinsic-size.none πŸ“‹Chrome2/1/2022 Safari9/18/2023594
css.properties.contain-intrinsic-width πŸ“‹Chrome10/19/2021 Safari9/18/2023699
css.properties.contain-intrinsic-width.none πŸ“‹Chrome2/1/2022 Safari9/18/2023594
css.properties.content.image-set πŸ“‹Firefox6/1/2021 Safari9/18/2023839
css.properties.hyphenate-character πŸ“‹Firefox3/8/2022 Safari9/18/2023559
css.properties.hyphens πŸ“‹Firefox12/15/2015 Safari9/18/20232834
css.properties.list-style-type.ethiopic-halehame Firefox11/9/2004 Safari9/18/20236887
css.properties.list-style-type.ethiopic-halehame-am Firefox11/9/2004 Safari9/18/20236887
css.types.image.image-set πŸ“‹Firefox6/1/2021 Safari9/18/2023839
html.elements.iframe.sandbox.allow-downloads πŸ“‹Chrome5/19/2020 Safari9/18/20231217
html.elements.link.rel.modulepreload πŸ“‹Chrome4/17/2018 Safari9/18/20231980
javascript.builtins.AggregateError.serializable_object Chrome2/1/2022 Safari9/18/2023594
javascript.builtins.Function.toString.toString_revision Firefox6/13/2017 Safari9/18/20232288
javascript.builtins.RegExp.unicodeSets πŸ“‹Chrome4/4/2023 Safari9/18/2023167
css.properties.grid-template-columns.subgrid πŸ“‹Firefox12/10/2019 Chrome9/12/20231372
css.properties.grid-template-rows.subgrid πŸ“‹Firefox12/10/2019 Chrome9/12/20231372

2023/8

API First Browser Date Last Browser Date Days
api.CSSStyleRule.cssRules πŸ“‹Chrome4/4/2023 Firefox8/29/2023147
api.CSSStyleRule.deleteRule πŸ“‹Chrome4/4/2023 Firefox8/29/2023147
api.CSSStyleRule.insertRule πŸ“‹Chrome4/4/2023 Firefox8/29/2023147
api.CanvasRenderingContext2D.getContextAttributes πŸ“‹Chrome3/12/2019 Firefox8/29/20231631
api.RTCEncodedAudioFrame πŸ“‹Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedAudioFrame.data πŸ“‹Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedAudioFrame.getMetadata πŸ“‹Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedAudioFrame.timestamp Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame πŸ“‹Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.data πŸ“‹Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.getMetadata πŸ“‹Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.timestamp Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.type πŸ“‹Chrome10/20/2020 Firefox8/29/20231043
css.properties.math-style πŸ“‹Safari4/26/2021 Firefox8/29/2023855
css.properties.offset-anchor πŸ“‹Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.auto πŸ“‹Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.bottom πŸ“‹Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.center πŸ“‹Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.left πŸ“‹Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.right πŸ“‹Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.top πŸ“‹Firefox1/7/2020 Chrome8/15/20231316
css.types.color.lab.mixed_type_parameters Safari12/13/2022 Chrome8/15/2023245
css.types.color.lch.mixed_type_parameters Safari12/13/2022 Chrome8/15/2023245
css.types.color.oklab.mixed_type_parameters Safari12/13/2022 Chrome8/15/2023245
css.types.color.oklch.mixed_type_parameters Safari12/13/2022 Chrome8/15/2023245
api.HTMLInputElement.dirName πŸ“‹Chrome2/8/2012 Firefox8/1/20234192
api.HTMLTextAreaElement.dirName πŸ“‹Chrome2/8/2012 Firefox8/1/20234192
api.MediaDevices.enumerateDevices πŸ“‹Chrome12/1/2015 Firefox8/1/20232800
api.TextMetrics.fontBoundingBoxAscent πŸ“‹Safari4/12/2018 Firefox8/1/20231937
api.TextMetrics.fontBoundingBoxDescent πŸ“‹Safari4/12/2018 Firefox8/1/20231937
css.selectors.first πŸ“‹Chrome3/28/2012 Firefox8/1/20234143
html.elements.input.dirname πŸ“‹Chrome2/8/2012 Firefox8/1/20234192
html.elements.textarea.dirname πŸ“‹Chrome2/8/2012 Firefox8/1/20234192
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_roundingIncrement_parameter Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_roundingMode_parameter Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_roundingPriority_parameter Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_signDisplay_parameter.negative Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_trailingZeroDisplay_parameter Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_useGrouping_parameter.string_values Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.format.number_parameter-string_decimal Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.NumberFormat.formatRange πŸ“‹Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.NumberFormat.formatRangeToParts πŸ“‹Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.PluralRules.PluralRules.options_parameter Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.PluralRules.PluralRules.options_parameter.options_roundingPriority_parameter Safari3/14/2022 Firefox8/1/2023505
javascript.builtins.Intl.PluralRules.selectRange πŸ“‹Safari3/14/2022 Firefox8/1/2023505

2023/7

API First Browser Date Last Browser Date Days
css.properties.display.multi-keyword_values Firefox10/22/2019 Chrome7/18/20231365
css.types.color.system-color.accentcolor_accentcolortext πŸ“‹Firefox7/26/2022 Chrome7/18/2023357
css.properties.animation-composition πŸ“‹Safari9/12/2022 Firefox7/4/2023295
javascript.builtins.Array.toReversed πŸ“‹Safari9/12/2022 Firefox7/4/2023295
javascript.builtins.Array.toSorted πŸ“‹Safari9/12/2022 Firefox7/4/2023295
javascript.builtins.Array.toSpliced πŸ“‹Safari9/12/2022 Firefox7/4/2023295
javascript.builtins.Array.with πŸ“‹Safari9/12/2022 Firefox7/4/2023295
javascript.builtins.TypedArray.toReversed πŸ“‹Safari9/12/2022 Firefox7/4/2023295
javascript.builtins.TypedArray.toSorted πŸ“‹Safari9/12/2022 Firefox7/4/2023295
javascript.builtins.TypedArray.with πŸ“‹Safari9/12/2022 Firefox7/4/2023295

2023/6

API First Browser Date Last Browser Date Days
api.SharedWorker.SharedWorker.ecmascript_modules Chrome2/4/2020 Firefox6/6/20231218
api.SharedWorker.SharedWorker.options_type_parameter Chrome2/4/2020 Firefox6/6/20231218
api.Worker.Worker.ecmascript_modules Chrome2/4/2020 Firefox6/6/20231218
api.Worker.Worker.options_type_parameter Chrome2/4/2020 Firefox6/6/20231218
api.Worklet.ecmascript_modules Chrome2/4/2020 Firefox6/6/20231218
css.properties.-webkit-text-security Safari10/26/2007 Firefox6/6/20235702
css.types.calc-keyword.NaN Chrome3/1/2022 Firefox6/6/2023462
css.types.calc-keyword.infinity Chrome3/1/2022 Firefox6/6/2023462
javascript.operators.import.worker_support Chrome2/4/2020 Firefox6/6/20231218
javascript.statements.import.worker_support Chrome2/4/2020 Firefox6/6/20231218

2023/5

API First Browser Date Last Browser Date Days
css.types.overflow.overlay Safari9/17/2018 Chrome5/30/20231716
api.Permissions.permission_push Chrome5/19/2015 Safari5/18/20232921
api.CompressionStream πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.CompressionStream πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.CompressionStream.deflate πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.CompressionStream.deflate-raw πŸ“‹Chrome6/21/2022 Firefox5/9/2023322
api.CompressionStream.CompressionStream.gzip πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.readable πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.writable πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.DecompressionStream πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.DecompressionStream.deflate πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.DecompressionStream.deflate-raw πŸ“‹Chrome6/21/2022 Firefox5/9/2023322
api.DecompressionStream.DecompressionStream.gzip πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.readable πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.writable πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCPeerConnection.connectionState πŸ“‹Safari9/19/2017 Firefox5/9/20232058
api.RTCPeerConnection.connectionstatechange_event πŸ“‹Safari9/19/2017 Firefox5/9/20232058
api.RTCPeerConnection.sctp πŸ“‹Chrome7/30/2019 Firefox5/9/20231379
api.RTCRtpReceiver.getCapabilities_static πŸ“‹Chrome6/5/2017 Firefox5/9/20232164
api.RTCRtpSender.getCapabilities_static πŸ“‹Chrome9/4/2018 Firefox5/9/20231708
api.RTCRtpSender.setStreams πŸ“‹Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport πŸ“‹Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.maxChannels πŸ“‹Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.maxMessageSize πŸ“‹Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.state πŸ“‹Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.statechange_event Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.transport πŸ“‹Chrome7/30/2019 Firefox5/9/20231379
api.RTCStatsReport.type_media-source πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.id πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.kind πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.timestamp πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.trackIdentifier πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.type πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.dataChannelsClosed πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.dataChannelsOpened πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.id πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.timestamp πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.type πŸ“‹Chrome2/4/2020 Firefox5/9/20231190
css.properties.content.gradient πŸ“‹Chrome3/26/2013 Firefox5/9/20233696
css.selectors.nth-child.of_syntax Safari9/30/2015 Firefox5/9/20232778
css.selectors.nth-last-child.of_syntax Safari9/30/2015 Firefox5/9/20232778
css.types.color.color πŸ“‹Safari9/20/2021 Firefox5/9/2023596
css.types.color.color.mixed_type_parameters Safari9/20/2021 Firefox5/9/2023596
css.types.color.color-mix πŸ“‹Safari12/13/2022 Firefox5/9/2023147
css.types.color.lab πŸ“‹Safari9/20/2021 Firefox5/9/2023596
css.types.color.lch πŸ“‹Safari9/20/2021 Firefox5/9/2023596
css.types.color.oklab πŸ“‹Safari3/14/2022 Firefox5/9/2023421
css.types.color.oklch πŸ“‹Safari3/14/2022 Firefox5/9/2023421
api.HTMLInputElement.cancel_event πŸ“‹Firefox8/10/2021 Chrome5/2/2023630
html.elements.iframe.sandbox.allow-storage-access-by-user-activation Safari4/12/2018 Chrome5/2/20231846

2023/4

API First Browser Date Last Browser Date Days
api.CanvasRenderingContext2D.createConicGradient πŸ“‹Chrome3/1/2022 Firefox4/11/2023406
api.CanvasRenderingContext2D.roundRect πŸ“‹Chrome3/1/2022 Firefox4/11/2023406
api.HTMLElement.inert πŸ“‹Safari5/16/2022 Firefox4/11/2023330
api.OffscreenCanvasRenderingContext2D.roundRect πŸ“‹Chrome3/1/2022 Firefox4/11/2023406
api.Path2D.roundRect πŸ“‹Chrome3/1/2022 Firefox4/11/2023406
html.global_attributes.inert πŸ“‹Safari5/16/2022 Firefox4/11/2023330
api.FormData.FormData.submitter Firefox3/14/2023 Chrome4/4/202321
api.createImageBitmap.options_imageOrientation_parameter.from-image Safari9/12/2022 Chrome4/4/2023204
css.properties.hyphens.language_dutch Safari7/20/2011 Chrome4/4/20234276
css.properties.hyphens.language_italian Safari7/20/2011 Chrome4/4/20234276
css.properties.hyphens.language_russian Safari7/20/2011 Chrome4/4/20234276
css.properties.hyphens.language_swedish Safari7/20/2011 Chrome4/4/20234276
css.properties.hyphens.language_ukrainian Firefox12/20/2011 Chrome4/4/20234123

2023/3

API First Browser Date Last Browser Date Days
api.CSSStyleSheet.CSSStyleSheet πŸ“‹Chrome3/12/2019 Safari3/27/20231476
api.CSSStyleSheet.replace πŸ“‹Chrome3/12/2019 Safari3/27/20231476
api.CSSStyleSheet.replaceSync πŸ“‹Chrome3/12/2019 Safari3/27/20231476
api.DedicatedWorkerGlobalScope.cancelAnimationFrame πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.DedicatedWorkerGlobalScope.messageerror_event πŸ“‹Chrome7/25/2017 Safari3/27/20232071
api.DedicatedWorkerGlobalScope.requestAnimationFrame πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.Document.adoptedStyleSheets πŸ“‹Chrome3/12/2019 Safari3/27/20231476
api.Document.exitFullscreen πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Document.exitFullscreen.returns_promise Chrome9/4/2018 Safari3/27/20231665
api.Document.fullscreen πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Document.fullscreenElement πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Document.fullscreenEnabled πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Document.fullscreenchange_event πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Document.fullscreenerror_event πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Element.fullscreenchange_event πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Element.fullscreenerror_event πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Element.requestFullscreen πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.Element.requestFullscreen.returns_promise Chrome12/4/2018 Safari3/27/20231574
api.ElementInternals πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.checkValidity πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.form πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.labels πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.reportValidity πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.setFormValue πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.setValidity πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.shadowRoot πŸ“‹Chrome1/19/2021 Safari3/27/2023797
api.ElementInternals.validationMessage πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.validity πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.ElementInternals.willValidate πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.FileSystemDirectoryHandle.@@asyncIterator πŸ“‹Chrome10/20/2020 Safari3/27/2023888
api.FileSystemSyncAccessHandle.close.sync_version Chrome11/29/2022 Safari3/27/2023118
api.FileSystemSyncAccessHandle.flush.sync_version Chrome11/29/2022 Safari3/27/2023118
api.FileSystemSyncAccessHandle.getSize.sync_version Chrome11/29/2022 Safari3/27/2023118
api.FileSystemSyncAccessHandle.truncate.sync_version Chrome11/29/2022 Safari3/27/2023118
api.GamepadHapticActuator πŸ“‹Firefox8/8/2017 Safari3/27/20232057
api.GamepadHapticActuator.type Firefox8/8/2017 Safari3/27/20232057
api.HTMLCanvasElement.transferControlToOffscreen πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.HTMLElement.attachInternals πŸ“‹Chrome9/10/2019 Safari3/27/20231294
api.HTMLSlotElement.assign πŸ“‹Chrome10/20/2020 Safari3/27/2023888
api.InputEvent.isComposing πŸ“‹Firefox7/22/2014 Safari3/27/20233170
api.MessagePort.messageerror_event πŸ“‹Chrome7/25/2017 Safari3/27/20232071
api.Navigator.pdfViewerEnabled πŸ“‹Chrome9/21/2021 Safari3/27/2023552
api.OffscreenCanvas πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvas.OffscreenCanvas πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvas.convertToBlob πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvas.getContext πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvas.getContext.2d_context Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvas.getContext.bitmaprenderer_context Chrome7/30/2019 Safari3/27/20231336
api.OffscreenCanvas.height πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvas.transferToImageBitmap πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvas.width πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.arc πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.arcTo πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.beginPath πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.bezierCurveTo πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.canvas πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.clearRect πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.clip πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.closePath πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.createConicGradient πŸ“‹Chrome3/1/2022 Safari3/27/2023391
api.OffscreenCanvasRenderingContext2D.createImageData πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.createLinearGradient πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.createPattern πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.createRadialGradient πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.direction πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.drawImage πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.ellipse πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.fill πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.fillRect πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.fillStyle πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.fillText πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.font πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.getImageData πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.getLineDash πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.getTransform πŸ“‹Chrome2/4/2020 Safari3/27/20231147
api.OffscreenCanvasRenderingContext2D.globalAlpha πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.globalCompositeOperation πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.imageSmoothingEnabled πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.isPointInPath πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.isPointInStroke πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.lineCap πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.lineDashOffset πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.lineJoin πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.lineTo πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.lineWidth πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.measureText πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.miterLimit πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.moveTo πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.putImageData πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.quadraticCurveTo πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.rect πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.resetTransform πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.restore πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.rotate πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.save πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.scale πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.setLineDash πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.setTransform πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.shadowBlur πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.shadowColor πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.shadowOffsetX πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.shadowOffsetY πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.stroke πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.strokeRect πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.strokeStyle πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.strokeText πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.textAlign πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.textBaseline πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.transform πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.OffscreenCanvasRenderingContext2D.translate πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.PerformanceResourceTiming.decodedBodySize πŸ“‹Firefox3/8/2016 Safari3/27/20232575
api.PerformanceResourceTiming.encodedBodySize πŸ“‹Firefox3/8/2016 Safari3/27/20232575
api.PerformanceResourceTiming.serverTiming πŸ“‹Chrome3/6/2018 Safari3/27/20231847
api.PerformanceResourceTiming.transferSize πŸ“‹Firefox3/8/2016 Safari3/27/20232575
api.PerformanceServerTiming πŸ“‹Chrome3/6/2018 Safari3/27/20231847
api.PerformanceServerTiming.description πŸ“‹Chrome3/6/2018 Safari3/27/20231847
api.PerformanceServerTiming.duration πŸ“‹Chrome3/6/2018 Safari3/27/20231847
api.PerformanceServerTiming.name πŸ“‹Chrome3/6/2018 Safari3/27/20231847
api.PerformanceServerTiming.toJSON πŸ“‹Chrome3/6/2018 Safari3/27/20231847
api.PermissionStatus.change_event πŸ“‹Chrome5/19/2015 Safari3/27/20232869
api.Permissions.permission_notifications Chrome5/19/2015 Safari3/27/20232869
api.RTCStatsReport.type_inbound-rtp.trackIdentifier πŸ“‹Chrome9/2/2022 Safari3/27/2023206
api.Report πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.Report.body πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.Report.toJSON πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.Report.type πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.Report.url πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.ReportBody πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.ReportBody.toJSON πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.ReportingObserver πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.ReportingObserver.ReportingObserver πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.ReportingObserver.disconnect πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.ReportingObserver.observe πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.ReportingObserver.takeRecords πŸ“‹Chrome9/4/2018 Safari3/27/20231665
api.SVGStyleElement.sheet πŸ“‹Firefox11/29/2005 Safari3/27/20236327
api.Screen.orientation πŸ“‹Chrome10/7/2014 Safari3/27/20233093
api.ScreenOrientation πŸ“‹Chrome10/7/2014 Safari3/27/20233093
api.ScreenOrientation.angle πŸ“‹Chrome10/7/2014 Safari3/27/20233093
api.ScreenOrientation.change_event πŸ“‹Chrome10/7/2014 Safari3/27/20233093
api.ScreenOrientation.type πŸ“‹Chrome10/7/2014 Safari3/27/20233093
api.ServiceWorkerContainer.messageerror_event πŸ“‹Firefox1/29/2019 Safari3/27/20231518
api.ShadowRoot.adoptedStyleSheets πŸ“‹Chrome3/12/2019 Safari3/27/20231476
api.ShadowRoot.fullscreenElement πŸ“‹Chrome12/4/2018 Safari3/27/20231574
api.ShadowRoot.slotAssignment πŸ“‹Chrome10/20/2020 Safari3/27/2023888
api.Window.messageerror_event πŸ“‹Chrome7/25/2017 Safari3/27/20232071
api.Worker.worker_support Firefox12/1/2014 Safari3/27/20233038
api.WritableStreamDefaultController.signal πŸ“‹Chrome2/1/2022 Safari3/27/2023419
css.at-rules.media.or_syntax Firefox12/11/2018 Safari3/27/20231567
css.at-rules.media.range_syntax Firefox6/28/2022 Safari3/27/2023272
css.properties.font-size.xxx-large Firefox10/22/2019 Safari3/27/20231252
css.properties.font-synthesis-small-caps πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-small-caps.auto πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-small-caps.none πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-style πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-style.auto πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-style.none πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-weight πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-weight.auto πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.font-synthesis-weight.none πŸ“‹Chrome1/4/2022 Safari3/27/2023447
css.properties.outline πŸ“‹Firefox4/19/2021 Safari3/27/2023707
css.selectors.backdrop.fullscreen Firefox6/7/2016 Safari3/27/20232484
css.selectors.fullscreen πŸ“‹Chrome12/4/2018 Safari3/27/20231574
html.elements.script.type.importmap πŸ“‹Chrome3/2/2021 Safari3/27/2023755
javascript.classes.static_initialization_blocks πŸ“‹Chrome9/21/2021 Safari3/27/2023552
javascript.operators.import_meta.resolve πŸ“‹Chrome9/2/2022 Safari3/27/2023206
javascript.regular_expressions.lookbehind_assertion πŸ“‹Chrome10/17/2017 Safari3/27/20231987
api.FileSystemDirectoryHandle πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.entries πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.getDirectoryHandle πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.getFileHandle πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.keys πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.removeEntry πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.resolve πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.values πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemFileHandle πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemFileHandle.createSyncAccessHandle πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.FileSystemFileHandle.getFile πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle.isSameEntry πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle.kind πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle.name πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemSyncAccessHandle πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.FileSystemSyncAccessHandle.close πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.FileSystemSyncAccessHandle.flush πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.FileSystemSyncAccessHandle.getSize πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.FileSystemSyncAccessHandle.read πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.FileSystemSyncAccessHandle.truncate πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.FileSystemSyncAccessHandle.write πŸ“‹Safari12/13/2021 Firefox3/14/2023456
api.HTMLElement.translate πŸ“‹Chrome5/15/2012 Firefox3/14/20233955
api.HTMLFormElement.rel πŸ“‹Safari3/14/2022 Firefox3/14/2023365
api.HTMLFormElement.relList πŸ“‹Safari3/14/2022 Firefox3/14/2023365
api.StorageManager.getDirectory πŸ“‹Chrome10/20/2020 Firefox3/14/2023875
html.elements.form.rel πŸ“‹Safari3/14/2022 Firefox3/14/2023365
html.global_attributes.translate πŸ“‹Chrome5/15/2012 Firefox3/14/20233955
api.CSSFontFeatureValuesRule πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
api.CSSFontFeatureValuesRule.fontFamily πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.annotation Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.character-variant Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.historical-forms Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.ornaments Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.styleset Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.stylistic Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.swash Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant.historical-forms πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.annotation πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.character_variant πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.historical-forms πŸ“‹Firefox1/7/2020 Chrome3/7/20231155
css.properties.font-variant-alternates.normal πŸ“‹Firefox1/7/2020 Chrome3/7/20231155
css.properties.font-variant-alternates.ornaments πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.styleset πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.stylistic πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.swash πŸ“‹Firefox12/1/2014 Chrome3/7/20233018
css.types.acos πŸ“‹Safari3/14/2022 Chrome3/7/2023358
css.types.asin πŸ“‹Safari3/14/2022 Chrome3/7/2023358
css.types.atan πŸ“‹Safari3/14/2022 Chrome3/7/2023358
css.types.atan2 πŸ“‹Safari3/14/2022 Chrome3/7/2023358
css.types.cos πŸ“‹Safari3/14/2022 Chrome3/7/2023358
css.types.sin πŸ“‹Safari3/14/2022 Chrome3/7/2023358
css.types.tan πŸ“‹Safari3/14/2022 Chrome3/7/2023358

2023/2

API First Browser Date Last Browser Date Days
api.CSSContainerRule πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
api.CSSPageRule.selectorText πŸ“‹Safari10/26/2007 Firefox2/14/20235590
api.HTMLElement.autofocus πŸ“‹Chrome12/10/2019 Firefox2/14/20231162
api.MathMLElement.autofocus πŸ“‹Safari3/14/2022 Firefox2/14/2023337
api.RTCPeerConnection.addTransceiver.init_sendEncodings_parameter Chrome9/4/2018 Firefox2/14/20231624
api.RTCRtpSender.setParameters.parameters_encodings_parameter.active Safari4/12/2018 Firefox2/14/20231769
api.SVGElement.autofocus πŸ“‹Chrome12/10/2019 Firefox2/14/20231162
css.at-rules.container πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.at-rules.media.color-gamut πŸ“‹Safari9/20/2016 Firefox2/14/20232338
css.properties.container πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-name πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-name.none πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type.inline-size πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type.normal πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type.size πŸ“‹Chrome9/2/2022 Firefox2/14/2023165
css.properties.page πŸ“‹Safari3/24/2020 Firefox2/14/20231057
css.types.length.container_query_length_units Chrome9/2/2022 Firefox2/14/2023165
html.elements.datalist πŸ“‹Chrome6/26/2012 Firefox2/14/20233885
html.global_attributes.autofocus πŸ“‹Chrome12/10/2019 Firefox2/14/20231162
css.properties.font-variant.sub πŸ“‹Firefox12/1/2014 Chrome2/7/20232990
css.properties.font-variant.super πŸ“‹Firefox12/1/2014 Chrome2/7/20232990
css.selectors.autofill πŸ“‹Firefox2/23/2021 Chrome2/7/2023714
css.types.calc-keyword.e Safari3/14/2022 Chrome2/7/2023330

2023/1

API First Browser Date Last Browser Date Days
html.elements.form.autocomplete.one-time-code Safari9/17/2018 Firefox1/17/20231583
html.elements.input.type_range.tick_marks Chrome5/29/2018 Firefox1/17/20231694
html.elements.textarea.autocomplete.one-time-code Safari9/17/2018 Firefox1/17/20231583
api.MathMLElement πŸ“‹Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.blur πŸ“‹Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.dataset πŸ“‹Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.focus πŸ“‹Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.style πŸ“‹Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.tabIndex πŸ“‹Firefox12/10/2019 Chrome1/10/20231127
css.types.calc-keyword.pi Safari3/14/2022 Chrome1/10/2023302

2022/12

API First Browser Date Last Browser Date Days
api.HTMLSourceElement.height πŸ“‹Chrome4/13/2021 Firefox12/13/2022609
api.HTMLSourceElement.width πŸ“‹Chrome4/13/2021 Firefox12/13/2022609
api.OES_draw_buffers_indexed πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendEquationSeparateiOES πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendEquationiOES πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendFuncSeparateiOES πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendFunciOES πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.colorMaskiOES πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.disableiOES πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.enableiOES πŸ“‹Chrome3/29/2022 Firefox12/13/2022259
css.properties.align-items.flex_context.last_baseline Firefox3/7/2017 Safari12/13/20222107
css.properties.align-self.flex_context.last_baseline Firefox3/7/2017 Safari12/13/20222107
css.properties.text-emphasis-position.over Safari3/24/2020 Firefox12/13/2022994
css.properties.text-emphasis-position.under Safari3/24/2020 Firefox12/13/2022994
css.types.calc-keyword πŸ“‹Chrome3/1/2022 Firefox12/13/2022287
html.elements.source.height πŸ“‹Chrome4/13/2021 Firefox12/13/2022609
html.elements.source.width πŸ“‹Chrome4/13/2021 Firefox12/13/2022609

2022/11

API First Browser Date Last Browser Date Days
api.HTMLMediaElement.srcObject πŸ“‹Firefox11/3/2015 Chrome11/29/20222583
css.types.length.vb Safari3/14/2022 Chrome11/29/2022260
css.types.length.vi Safari3/14/2022 Chrome11/29/2022260
css.types.length.viewport_percentage_units_dynamic Safari3/14/2022 Chrome11/29/2022260
css.types.length.viewport_percentage_units_large Safari3/14/2022 Chrome11/29/2022260
css.types.length.viewport_percentage_units_small Safari3/14/2022 Chrome11/29/2022260
api.CSSFontPaletteValuesRule πŸ“‹Safari3/14/2022 Firefox11/15/2022246
api.CSSFontPaletteValuesRule.basePalette πŸ“‹Safari3/14/2022 Firefox11/15/2022246
api.CSSFontPaletteValuesRule.fontFamily πŸ“‹Safari3/14/2022 Firefox11/15/2022246
api.CSSFontPaletteValuesRule.name πŸ“‹Safari3/14/2022 Firefox11/15/2022246
api.CSSFontPaletteValuesRule.overrideColors πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.at-rules.font-palette-values πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.at-rules.font-palette-values.base-palette πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.at-rules.font-palette-values.font-family πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.at-rules.font-palette-values.override-colors πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.properties.font-palette πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.properties.font-palette.dark πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.properties.font-palette.light πŸ“‹Safari3/14/2022 Firefox11/15/2022246
css.properties.font-palette.normal πŸ“‹Safari3/14/2022 Firefox11/15/2022246

2022/10

API First Browser Date Last Browser Date Days
css.properties.grid-template-columns.animation Firefox3/19/2019 Chrome10/25/20221316
css.properties.grid-template-rows.animation Firefox3/19/2019 Chrome10/25/20221316
api.HTMLMetaElement.media πŸ“‹Chrome8/31/2021 Firefox10/18/2022413
api.RTCStatsReport.type_inbound-rtp.concealmentEvents πŸ“‹Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.fecPacketsDiscarded πŸ“‹Chrome4/7/2020 Firefox10/18/2022924
api.RTCStatsReport.type_inbound-rtp.fecPacketsReceived πŸ“‹Chrome4/7/2020 Firefox10/18/2022924
api.RTCStatsReport.type_inbound-rtp.headerBytesReceived πŸ“‹Chrome2/4/2020 Firefox10/18/2022987
api.RTCStatsReport.type_inbound-rtp.insertedSamplesForDeceleration πŸ“‹Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.removedSamplesForAcceleration πŸ“‹Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.totalAudioEnergy πŸ“‹Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.totalSamplesDuration πŸ“‹Chrome10/20/2020 Firefox10/18/2022728

2022/9

API First Browser Date Last Browser Date Days
css.types.length.ic Firefox2/8/2022 Chrome9/27/2022231
api.TextDecoderStream πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.TextDecoderStream πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.encoding πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.fatal πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.ignoreBOM πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.readable πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.writable πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream.TextEncoderStream πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream.encoding πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream.readable πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream.writable πŸ“‹Chrome12/4/2018 Firefox9/20/20221386
api.WorkerGlobalScope.fonts πŸ“‹Chrome9/4/2018 Firefox9/20/20221477
api.EXT_texture_compression_bptc πŸ“‹Firefox7/9/2019 Safari9/12/20221161
api.Element.animate.options_composite_parameter πŸ“‹Chrome7/27/2020 Safari9/12/2022777
api.FetchEvent.handled πŸ“‹Chrome10/20/2020 Safari9/12/2022692
api.FetchEvent.resultingClientId πŸ“‹Chrome1/29/2019 Safari9/12/20221322
api.HTMLFormElement.requestSubmit πŸ“‹Chrome7/30/2019 Safari9/12/20221140
api.HTMLInputElement.showPicker πŸ“‹Chrome3/1/2022 Safari9/12/2022195
api.HTMLInputElement.showPicker.color_input Chrome3/1/2022 Safari9/12/2022195
api.HTMLInputElement.showPicker.file_input Chrome3/1/2022 Safari9/12/2022195
api.HTMLScriptElement.supports_static πŸ“‹Firefox11/2/2021 Safari9/12/2022314
api.KeyframeEffect.composite πŸ“‹Chrome7/27/2020 Safari9/12/2022777
api.Navigator.permissions πŸ“‹Chrome5/19/2015 Safari9/12/20222673
api.Notification.data πŸ“‹Firefox12/1/2014 Safari9/12/20222842
api.NotificationEvent πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.NotificationEvent.NotificationEvent πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PermissionStatus πŸ“‹Chrome5/19/2015 Safari9/12/20222673
api.PermissionStatus.name πŸ“‹Firefox10/5/2021 Safari9/12/2022342
api.PermissionStatus.state πŸ“‹Chrome7/21/2015 Safari9/12/20222610
api.Permissions πŸ“‹Chrome5/19/2015 Safari9/12/20222673
api.Permissions.permission_geolocation Chrome5/19/2015 Safari9/12/20222673
api.Permissions.query πŸ“‹Chrome5/19/2015 Safari9/12/20222673
api.PushEvent πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushEvent.PushEvent πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushEvent.data πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushManager πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushManager.getSubscription πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushManager.permissionState πŸ“‹Chrome7/21/2015 Safari9/12/20222610
api.PushManager.subscribe πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushMessageData πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushMessageData.arrayBuffer πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushMessageData.blob πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushMessageData.json πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushMessageData.text πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushSubscription πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushSubscription.endpoint πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushSubscription.expirationTime πŸ“‹Chrome7/25/2017 Safari9/12/20221875
api.PushSubscription.getKey πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushSubscription.options πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushSubscription.toJSON πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushSubscription.unsubscribe πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.PushSubscriptionOptions πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.PushSubscriptionOptions.applicationServerKey πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.ServiceWorkerGlobalScope.notificationclick_event πŸ“‹Chrome1/21/2015 Safari9/12/20222791
api.ServiceWorkerGlobalScope.notificationclose_event πŸ“‹Firefox1/26/2016 Safari9/12/20222421
api.ServiceWorkerGlobalScope.push_event πŸ“‹Chrome1/21/2015 Safari9/12/20222791
api.ServiceWorkerRegistration.getNotifications πŸ“‹Chrome1/21/2015 Safari9/12/20222791
api.ServiceWorkerRegistration.pushManager πŸ“‹Chrome1/21/2015 Safari9/12/20222791
api.ServiceWorkerRegistration.showNotification πŸ“‹Chrome4/14/2015 Safari9/12/20222708
api.SharedWorker πŸ“‹Chrome5/25/2010 Safari9/12/20224493
api.SharedWorker.SharedWorker πŸ“‹Chrome5/25/2010 Safari9/12/20224493
api.SharedWorker.error_event πŸ“‹Chrome5/25/2010 Safari9/12/20224493
api.SharedWorker.port πŸ“‹Chrome5/25/2010 Safari9/12/20224493
api.SharedWorkerGlobalScope πŸ“‹Chrome1/25/2010 Safari9/12/20224613
api.SharedWorkerGlobalScope.close πŸ“‹Chrome1/25/2010 Safari9/12/20224613
api.SharedWorkerGlobalScope.connect_event πŸ“‹Chrome1/25/2010 Safari9/12/20224613
api.SharedWorkerGlobalScope.name πŸ“‹Chrome1/25/2010 Safari9/12/20224613
api.SpeechSynthesis.voiceschanged_event πŸ“‹Chrome2/20/2014 Safari9/12/20223126
api.SpeechSynthesisErrorEvent.SpeechSynthesisErrorEvent πŸ“‹Firefox9/20/2016 Safari9/12/20222183
api.SpeechSynthesisEvent.SpeechSynthesisEvent πŸ“‹Firefox9/20/2016 Safari9/12/20222183
api.SpeechSynthesisEvent.charLength πŸ“‹Firefox4/19/2017 Safari9/12/20221972
api.SpeechSynthesisEvent.utterance πŸ“‹Chrome2/20/2014 Safari9/12/20223126
api.Window.gamepadconnected_event πŸ“‹Chrome5/20/2014 Safari9/12/20223037
api.Window.gamepaddisconnected_event πŸ“‹Chrome5/20/2014 Safari9/12/20223037
api.WindowClient.navigate πŸ“‹Chrome3/2/2016 Safari9/12/20222385
api.WorkerGlobalScope.importScripts.mime_checks Chrome12/4/2018 Safari9/12/20221378
css.at-rules.media.forced-colors πŸ“‹Chrome3/2/2021 Safari9/12/2022559
css.at-rules.media.resolution πŸ“‹Firefox11/8/2011 Safari9/12/20223961
css.properties.contain.inline-size πŸ“‹Firefox5/31/2022 Safari9/12/2022104
css.properties.flex-basis.fit-content Chrome9/21/2021 Safari9/12/2022356
css.properties.flex-basis.max-content Firefox3/19/2019 Safari9/12/20221273
css.properties.flex-basis.min-content Firefox3/19/2019 Safari9/12/20221273
css.properties.offset πŸ“‹Chrome12/1/2016 Safari9/12/20222111
css.properties.offset-distance πŸ“‹Chrome12/1/2016 Safari9/12/20222111
css.properties.offset-path.path Chrome1/23/2018 Safari9/12/20221693
css.properties.offset-rotate πŸ“‹Chrome1/25/2017 Safari9/12/20222056
css.properties.offset-rotate.auto πŸ“‹Chrome10/13/2015 Safari9/12/20222526
css.properties.offset-rotate.reverse πŸ“‹Chrome10/13/2015 Safari9/12/20222526
css.properties.overflow.clip πŸ“‹Firefox9/22/2020 Safari9/12/2022720
css.properties.overflow-x.clip πŸ“‹Firefox9/22/2020 Safari9/12/2022720
css.properties.overflow-y.clip πŸ“‹Firefox9/22/2020 Safari9/12/2022720
css.properties.overscroll-behavior πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior.auto πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior.contain πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior.none πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior-block πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-block.auto πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-block.contain πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-block.none πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-inline πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-inline.auto πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-inline.contain πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-inline.none πŸ“‹Chrome9/10/2019 Safari9/12/20221098
css.properties.overscroll-behavior-x πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior-x.auto πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior-x.contain πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior-x.none πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior-y πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior-y.auto πŸ“‹Chrome12/6/2017 Safari9/12/20221741
css.properties.overscroll-behavior-y.contain πŸ“‹Firefox3/13/2018 Safari9/12/20221644
css.properties.overscroll-behavior-y.none πŸ“‹Firefox3/13/2018 Safari9/12/20221644
css.properties.text-align-last πŸ“‹Chrome12/1/2015 Safari9/12/20222477
css.properties.text-align-last.auto πŸ“‹Firefox4/24/2012 Safari9/12/20223793
css.properties.user-select.all Firefox11/9/2004 Safari9/12/20226516
css.types.basic-shape.path.offset-path πŸ“‹Chrome1/25/2017 Safari9/12/20222056
css.types.overflow.clip Firefox9/22/2020 Safari9/12/2022720
css.types.resolution πŸ“‹Firefox11/8/2011 Safari9/12/20223961
css.types.resolution.dpcm Firefox11/8/2011 Safari9/12/20223961
css.types.resolution.dpi Firefox11/8/2011 Safari9/12/20223961
css.types.resolution.dppx Firefox10/9/2012 Safari9/12/20223625
css.types.resolution.x Chrome7/24/2018 Safari9/12/20221511
html.elements.textarea.placeholder.line_breaks Chrome7/16/2014 Safari9/12/20222980
html.elements.video.autoplay.requires_muted_audio Chrome5/29/2018 Safari9/12/20221567
javascript.classes.public_class_fields πŸ“‹Chrome1/29/2019 Safari9/12/20221322
css.selectors.modal πŸ“‹Safari7/20/2022 Chrome9/2/202244

2022/8

API First Browser Date Last Browser Date Days
api.RTCStatsReport.type_inbound-rtp.concealedSamples πŸ“‹Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.jitterBufferDelay πŸ“‹Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.jitterBufferEmittedCount πŸ“‹Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.silentConcealedSamples πŸ“‹Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.totalSamplesReceived πŸ“‹Chrome10/20/2020 Firefox8/23/2022672
api.SVGStyleElement.disabled πŸ“‹Safari7/25/2012 Firefox8/23/20223681
javascript.builtins.Array.findLast πŸ“‹Chrome1/4/2022 Firefox8/23/2022231
javascript.builtins.Array.findLastIndex πŸ“‹Chrome1/4/2022 Firefox8/23/2022231
javascript.builtins.TypedArray.findLast πŸ“‹Chrome1/4/2022 Firefox8/23/2022231
javascript.builtins.TypedArray.findLastIndex πŸ“‹Chrome1/4/2022 Firefox8/23/2022231
css.properties.rotate πŸ“‹Firefox1/7/2020 Chrome8/2/2022938
css.properties.rotate.none πŸ“‹Firefox1/7/2020 Chrome8/2/2022938
css.properties.rotate.x_y_z_angle Firefox1/7/2020 Chrome8/2/2022938
css.properties.scale πŸ“‹Firefox1/7/2020 Chrome8/2/2022938
css.properties.scale.none πŸ“‹Firefox1/7/2020 Chrome8/2/2022938
css.properties.translate πŸ“‹Firefox1/7/2020 Chrome8/2/2022938
css.properties.translate.none πŸ“‹Firefox1/7/2020 Chrome8/2/2022938

2022/7

API First Browser Date Last Browser Date Days
api.Performance.measure.measureOptions_parameter Chrome9/10/2019 Firefox7/26/20221050
api.Performance.measure.returns_performancemeasure Chrome10/22/2019 Firefox7/26/20221008
api.PerformanceMeasure.detail πŸ“‹Chrome10/22/2019 Firefox7/26/20221008
api.caches.secure_context_required Chrome3/6/2018 Firefox7/26/20221603
css.properties.contain.style πŸ“‹Chrome7/20/2016 Firefox7/26/20222197
css.properties.scroll-snap-stop πŸ“‹Chrome6/4/2019 Firefox7/26/20221148
css.properties.scroll-snap-stop.always πŸ“‹Chrome6/4/2019 Firefox7/26/20221148
css.properties.scroll-snap-stop.normal πŸ“‹Chrome6/4/2019 Firefox7/26/20221148
css.properties.align-content.flex_context.start_end Firefox3/8/2016 Safari7/20/20222325

2022/6

API First Browser Date Last Browser Date Days
api.ReadableStream.pipeThrough πŸ“‹Safari3/27/2017 Firefox6/28/20221919
api.TransformStream πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStream.TransformStream πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStream.readable πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStream.writable πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController.desiredSize πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController.enqueue πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController.error πŸ“‹Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController.terminate πŸ“‹Chrome5/29/2018 Firefox6/28/20221491

2022/5

API First Browser Date Last Browser Date Days
api.CanvasRenderingContext2D.direction πŸ“‹Safari9/30/2015 Firefox5/31/20222435
api.Performance.mark.markOptions_parameter Chrome10/22/2019 Firefox5/31/2022952
api.Performance.mark.returns_performancemark Chrome10/22/2019 Firefox5/31/2022952
api.PerformanceMark.PerformanceMark πŸ“‹Chrome7/30/2019 Firefox5/31/20221036
api.PerformanceMark.detail πŸ“‹Chrome10/22/2019 Firefox5/31/2022952
api.RTCRtpSender.setParameters.parameters_encodings_parameter.maxFramerate πŸ“‹Safari9/19/2017 Firefox5/31/20221715
css.at-rules.media.prefers-contrast πŸ“‹Safari4/26/2021 Firefox5/31/2022400
html.global_attributes.nonce.nonce_hiding πŸ“‹Chrome9/5/2017 Safari5/16/20221714
api.RTCStatsReport.type_outbound-rtp.headerBytesSent πŸ“‹Chrome2/4/2020 Firefox5/3/2022819
api.RTCStatsReport.type_outbound-rtp.retransmittedBytesSent πŸ“‹Chrome2/4/2020 Firefox5/3/2022819
api.RTCStatsReport.type_outbound-rtp.retransmittedPacketsSent πŸ“‹Chrome2/4/2020 Firefox5/3/2022819
api.ReadableStream.pipeTo πŸ“‹Safari3/27/2017 Firefox5/3/20221863
api.ReadableStreamDefaultReader.ReadableStreamDefaultReader πŸ“‹Safari9/20/2016 Firefox5/3/20222051
api.WritableStream πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStream.WritableStream πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStream.abort πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStream.close πŸ“‹Chrome4/7/2020 Firefox5/3/2022756
api.WritableStream.getWriter πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStream.locked πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultController πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultController.error πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.WritableStreamDefaultWriter πŸ“‹Chrome10/22/2019 Firefox5/3/2022924
api.WritableStreamDefaultWriter.abort πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.close πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.closed πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.desiredSize πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.ready πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.releaseLock πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.write πŸ“‹Chrome6/5/2017 Firefox5/3/20221793
css.at-rules.media.dynamic-range πŸ“‹Safari3/24/2020 Firefox5/3/2022770

2022/4

API First Browser Date Last Browser Date Days
api.MediaCapabilities.encodingInfo πŸ“‹Firefox10/23/2018 Chrome4/26/20221281
css.types.color.hwb πŸ“‹Safari9/20/2021 Chrome4/26/2022218
api.FetchEvent.preloadResponse πŸ“‹Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager πŸ“‹Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.disable πŸ“‹Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.enable πŸ“‹Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.getState πŸ“‹Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.setHeaderValue πŸ“‹Chrome6/5/2017 Firefox4/5/20221765
api.RTCPeerConnection.setConfiguration πŸ“‹Chrome1/20/2016 Firefox4/5/20222267
api.ServiceWorkerRegistration.navigationPreload πŸ“‹Chrome6/5/2017 Firefox4/5/20221765
css.properties.mix-blend-mode.plus-lighter πŸ“‹Safari3/21/2016 Firefox4/5/20222206
css.properties.scroll-snap-type πŸ“‹Safari9/19/2017 Firefox4/5/20221659

2022/3

API First Browser Date Last Browser Date Days
api.AbortSignal.throwIfAborted πŸ“‹Firefox2/8/2022 Chrome3/29/202249
api.Window.moveTo.relative-multi-screen Safari6/23/2003 Chrome3/29/20226854
api.Window.open.relative-multi-screen Safari6/23/2003 Chrome3/29/20226854
api.Window.screenLeft.relative-multi-screen Safari6/23/2003 Chrome3/29/20226854
api.Window.screenTop.relative-multi-screen Safari6/23/2003 Chrome3/29/20226854
api.Window.screenX.relative-multi-screen Safari6/23/2003 Chrome3/29/20226854
api.Window.screenY.relative-multi-screen Safari6/23/2003 Chrome3/29/20226854
api.AbortController.abort.reason_parameter πŸ“‹Chrome2/1/2022 Safari3/14/202241
api.AbortSignal.abort_static.reason_parameter πŸ“‹Chrome2/1/2022 Safari3/14/202241
api.AbortSignal.reason πŸ“‹Chrome2/1/2022 Safari3/14/202241
api.BroadcastChannel πŸ“‹Firefox5/12/2015 Safari3/14/20222498
api.BroadcastChannel.BroadcastChannel πŸ“‹Firefox5/12/2015 Safari3/14/20222498
api.BroadcastChannel.close πŸ“‹Firefox5/12/2015 Safari3/14/20222498
api.BroadcastChannel.message_event πŸ“‹Firefox5/12/2015 Safari3/14/20222498
api.BroadcastChannel.messageerror_event πŸ“‹Chrome7/25/2017 Safari3/14/20221693
api.BroadcastChannel.name πŸ“‹Firefox5/12/2015 Safari3/14/20222498
api.BroadcastChannel.postMessage πŸ“‹Firefox5/12/2015 Safari3/14/20222498
api.CSSImportRule.layerName πŸ“‹Firefox2/8/2022 Safari3/14/202234
api.CSSLayerBlockRule πŸ“‹Firefox2/8/2022 Safari3/14/202234
api.CSSLayerBlockRule.name πŸ“‹Firefox2/8/2022 Safari3/14/202234
api.CSSLayerStatementRule πŸ“‹Firefox2/8/2022 Safari3/14/202234
api.CSSLayerStatementRule.nameList πŸ“‹Firefox2/8/2022 Safari3/14/202234
api.Crypto.randomUUID πŸ“‹Chrome7/20/2021 Safari3/14/2022237
api.Document.securitypolicyviolation_event πŸ“‹Chrome7/30/2019 Safari3/14/2022958
api.HTMLDialogElement πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLDialogElement.cancel_event πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLDialogElement.close πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLDialogElement.close_event πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLDialogElement.open πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLDialogElement.returnValue πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLDialogElement.show πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLDialogElement.showModal πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.HTMLElement.nonce πŸ“‹Chrome9/5/2017 Safari3/14/20221651
api.HTMLImageElement.loading πŸ“‹Chrome9/10/2019 Safari3/14/2022916
api.Lock πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.Lock.mode πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.Lock.name πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.LockManager πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.LockManager.query πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.LockManager.request πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.Navigator.hardwareConcurrency πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.Navigator.locks πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.RTCDtlsTransport πŸ“‹Chrome1/29/2019 Safari3/14/20221140
api.RTCDtlsTransport.state πŸ“‹Chrome1/29/2019 Safari3/14/20221140
api.RTCDtlsTransport.statechange_event Chrome1/29/2019 Safari3/14/20221140
api.RTCPeerConnection.canTrickleIceCandidates πŸ“‹Firefox6/7/2016 Safari3/14/20222106
api.RTCPeerConnection.setRemoteDescription.implicit_rollback Firefox10/22/2019 Safari3/14/2022874
api.RTCRtpReceiver.transport πŸ“‹Chrome6/5/2017 Safari3/14/20221743
api.RTCRtpSender.transport πŸ“‹Chrome6/4/2019 Safari3/14/20221014
api.RTCStatsReport.type_inbound-rtp.packetsDiscarded πŸ“‹Chrome9/21/2021 Safari3/14/2022174
api.RTCStatsReport.type_outbound-rtp.nackCount πŸ“‹Firefox8/8/2017 Safari3/14/20221679
api.ResizeObserver.observe.options_box_parameter Firefox9/3/2019 Safari3/14/2022923
api.ResizeObserverEntry.borderBoxSize πŸ“‹Chrome7/27/2020 Safari3/14/2022595
api.ResizeObserverEntry.contentBoxSize πŸ“‹Chrome7/27/2020 Safari3/14/2022595
api.ResizeObserverSize πŸ“‹Firefox9/3/2019 Safari3/14/2022923
api.ResizeObserverSize.blockSize πŸ“‹Firefox9/3/2019 Safari3/14/2022923
api.ResizeObserverSize.inlineSize πŸ“‹Firefox9/3/2019 Safari3/14/2022923
api.SVGElement.nonce πŸ“‹Chrome9/5/2017 Safari3/14/20221651
api.SubmitEvent.submitter πŸ“‹Chrome4/7/2020 Safari3/14/2022706
api.WorkerNavigator.hardwareConcurrency πŸ“‹Chrome8/26/2014 Safari3/14/20222757
api.WorkerNavigator.locks πŸ“‹Chrome9/4/2018 Safari3/14/20221287
api.WorkerNavigator.mediaCapabilities πŸ“‹Firefox10/23/2018 Safari3/14/20221238
api.reportError πŸ“‹Firefox10/5/2021 Safari3/14/2022160
api.structuredClone πŸ“‹Firefox11/2/2021 Safari3/14/2022132
css.at-rules.import.layer πŸ“‹Firefox2/8/2022 Safari3/14/202234
css.at-rules.layer πŸ“‹Firefox2/8/2022 Safari3/14/202234
css.properties.accent-color πŸ“‹Chrome8/31/2021 Safari3/14/2022195
css.properties.accent-color.auto Chrome8/31/2021 Safari3/14/2022195
css.properties.align-items.flex_context.start_end Firefox3/8/2016 Safari3/14/20222197
css.properties.align-self.flex_context.start_end Firefox3/8/2016 Safari3/14/20222197
css.properties.appearance πŸ“‹Chrome7/27/2020 Safari3/14/2022595
css.properties.appearance.auto πŸ“‹Chrome5/19/2020 Safari3/14/2022664
css.properties.backface-visibility πŸ“‹Firefox10/9/2012 Safari3/14/20223443
css.properties.background-attachment.fixed πŸ“‹Firefox10/24/2006 Safari3/14/20225620
css.properties.background-attachment.local πŸ“‹Chrome12/11/2008 Safari3/14/20224841
css.properties.contain πŸ“‹Chrome7/20/2016 Safari3/14/20222063
css.properties.contain.content πŸ“‹Chrome7/20/2016 Safari3/14/20222063
css.properties.contain.layout πŸ“‹Chrome7/20/2016 Safari3/14/20222063
css.properties.contain.none πŸ“‹Chrome7/20/2016 Safari3/14/20222063
css.properties.contain.paint πŸ“‹Chrome7/20/2016 Safari3/14/20222063
css.properties.contain.size πŸ“‹Chrome7/20/2016 Safari3/14/20222063
css.properties.contain.strict πŸ“‹Chrome7/20/2016 Safari3/14/20222063
css.properties.flex-basis.content Firefox6/26/2018 Safari3/14/20221357
css.properties.justify-content.flex_context.start_end Firefox3/8/2016 Safari3/14/20222197
css.properties.offset-path πŸ“‹Chrome12/1/2016 Safari3/14/20221929
css.properties.overflow-wrap.anywhere πŸ“‹Firefox1/29/2019 Safari3/14/20221140
css.properties.print-color-adjust πŸ“‹Chrome2/8/2012 Safari3/14/20223687
css.properties.scroll-behavior πŸ“‹Firefox2/24/2015 Safari3/14/20222575
css.properties.scroll-behavior.auto πŸ“‹Firefox2/24/2015 Safari3/14/20222575
css.properties.scroll-behavior.smooth πŸ“‹Firefox2/24/2015 Safari3/14/20222575
css.properties.text-align.match-parent πŸ“‹Chrome12/13/2011 Safari3/14/20223744
css.properties.text-combine-upright πŸ“‹Chrome1/20/2016 Safari3/14/20222245
css.properties.text-decoration-skip-ink πŸ“‹Chrome1/23/2018 Safari3/14/20221511
css.properties.text-decoration-skip-ink.auto πŸ“‹Chrome1/23/2018 Safari3/14/20221511
css.properties.text-decoration-skip-ink.none πŸ“‹Chrome1/23/2018 Safari3/14/20221511
css.selectors.backdrop πŸ“‹Chrome8/26/2014 Safari3/14/20222757
css.selectors.backdrop.dialog Chrome1/14/2014 Safari3/14/20222981
css.selectors.focus-visible πŸ“‹Chrome10/20/2020 Safari3/14/2022510
css.types.global_keywords.revert-layer πŸ“‹Firefox2/8/2022 Safari3/14/202234
css.types.transform-function.perspective.none πŸ“‹Firefox10/5/2021 Safari3/14/2022160
html.elements.dialog πŸ“‹Chrome8/26/2014 Safari3/14/20222757
html.elements.dialog.open Chrome8/26/2014 Safari3/14/20222757
html.elements.img.loading πŸ“‹Chrome9/10/2019 Safari3/14/2022916
html.global_attributes.nonce πŸ“‹Firefox7/22/2014 Safari3/14/20222792
javascript.builtins.Array.at πŸ“‹Firefox7/13/2021 Safari3/14/2022244
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeZoneName_parameter.extended_values Firefox8/10/2021 Safari3/14/2022216
javascript.builtins.Intl.supportedValuesOf πŸ“‹Firefox10/5/2021 Safari3/14/2022160
javascript.builtins.Object.hasOwn πŸ“‹Chrome8/31/2021 Safari3/14/2022195
javascript.builtins.String.at πŸ“‹Firefox7/13/2021 Safari3/14/2022244
javascript.builtins.TypedArray.at πŸ“‹Firefox7/13/2021 Safari3/14/2022244
api.HTMLElement.outerText πŸ“‹Safari4/15/2005 Firefox3/8/20226171
api.RTCStatsReport.type_codec πŸ“‹Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.channels πŸ“‹Chrome5/19/2020 Firefox3/8/2022658
api.RTCStatsReport.type_codec.clockRate πŸ“‹Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.id πŸ“‹Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.mimeType πŸ“‹Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.payloadType πŸ“‹Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.sdpFmtpLine πŸ“‹Chrome5/19/2020 Firefox3/8/2022658
api.RTCStatsReport.type_codec.timestamp πŸ“‹Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.type πŸ“‹Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_outbound-rtp.codecId πŸ“‹Safari9/19/2017 Firefox3/8/20221631
api.RTCStatsReport.type_remote-inbound-rtp.codecId πŸ“‹Safari9/19/2017 Firefox3/8/20221631
api.RTCStatsReport.type_remote-outbound-rtp.codecId πŸ“‹Safari9/19/2017 Firefox3/8/20221631
api.createImageBitmap.options_colorSpaceConversion_parameter Chrome4/19/2017 Firefox3/8/20221784
api.createImageBitmap.options_resizeHeight_parameter Chrome10/12/2016 Firefox3/8/20221973
api.createImageBitmap.options_resizeWidth_parameter Chrome10/12/2016 Firefox3/8/20221973
css.properties.hyphenate-character.auto πŸ“‹Chrome9/2/2010 Firefox3/8/20224205
css.properties.text-emphasis πŸ“‹Safari10/22/2013 Chrome3/1/20223052
css.properties.text-emphasis-color πŸ“‹Safari10/22/2013 Chrome3/1/20223052
css.properties.text-emphasis-position πŸ“‹Safari10/22/2013 Chrome3/1/20223052
css.properties.text-emphasis-style πŸ“‹Safari10/22/2013 Chrome3/1/20223052
css.properties.text-emphasis-style.circle πŸ“‹Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.dot πŸ“‹Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.double-circle πŸ“‹Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.filled πŸ“‹Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.none πŸ“‹Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.sesame πŸ“‹Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.triangle πŸ“‹Firefox1/7/2020 Chrome3/1/2022784

2022/2

API First Browser Date Last Browser Date Days
api.ImageBitmapRenderingContext.canvas πŸ“‹Safari4/12/2018 Firefox2/8/20221398
css.properties.color-scheme.only_dark Safari9/19/2019 Chrome2/1/2022866
css.properties.color-scheme.only_light Safari9/19/2019 Chrome2/1/2022866

2022/1

API First Browser Date Last Browser Date Days
api.Navigator.canShare πŸ“‹Safari9/16/2020 Firefox1/11/2022482
api.RTCStatsReport.type_remote-inbound-rtp.roundTripTime πŸ“‹Chrome2/4/2020 Firefox1/11/2022707
css.properties.color-scheme πŸ“‹Safari9/19/2019 Firefox1/11/2022845
css.properties.color-scheme.dark Safari9/19/2019 Firefox1/11/2022845
css.properties.color-scheme.light Safari9/19/2019 Firefox1/11/2022845
css.properties.color-scheme.normal Safari9/19/2019 Firefox1/11/2022845
html.elements.meta.name.color-scheme πŸ“‹Safari3/25/2019 Firefox1/11/20221023
css.properties.font-synthesis πŸ“‹Firefox12/1/2014 Chrome1/4/20222591
css.properties.font-synthesis.small-caps Safari3/27/2017 Chrome1/4/20221744
css.properties.font-synthesis.style Safari3/27/2017 Chrome1/4/20221744
css.properties.font-synthesis.weight Safari3/27/2017 Chrome1/4/20221744

2021/12

API First Browser Date Last Browser Date Days
api.Navigator.storage πŸ“‹Chrome12/1/2016 Safari12/13/20211838
api.StorageManager πŸ“‹Chrome12/1/2016 Safari12/13/20211838
api.StorageManager.persist πŸ“‹Chrome12/1/2016 Safari12/13/20211838
api.StorageManager.persisted πŸ“‹Chrome12/1/2016 Safari12/13/20211838
api.WorkerNavigator.storage πŸ“‹Chrome12/1/2016 Safari12/13/20211838
api.crossOriginIsolated πŸ“‹Firefox1/7/2020 Safari12/13/2021706
javascript.builtins.Atomics πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.add πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.and πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.compareExchange πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.exchange πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.isLockFree πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.load πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.notify πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.or πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.store πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.sub πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.wait πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.Atomics.xor πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.DataView.DataView.sharedarraybuffer_support Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.SharedArrayBuffer πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.SharedArrayBuffer.@@species πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.SharedArrayBuffer.SharedArrayBuffer πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.SharedArrayBuffer.byteLength πŸ“‹Chrome7/24/2018 Safari12/13/20211238
javascript.builtins.SharedArrayBuffer.slice πŸ“‹Chrome7/24/2018 Safari12/13/20211238
api.HTMLElement.inputMode πŸ“‹Chrome4/17/2018 Firefox12/7/20211330
html.global_attributes.inputmode πŸ“‹Chrome4/17/2018 Firefox12/7/20211330

2021/11

API First Browser Date Last Browser Date Days
api.Element.attachShadow.options_delegatesFocus_parameter πŸ“‹Chrome8/31/2016 Firefox11/2/20211889
api.HTMLElement.enterKeyHint πŸ“‹Chrome9/10/2019 Firefox11/2/2021784
api.ShadowRoot.delegatesFocus πŸ“‹Chrome8/31/2016 Firefox11/2/20211889
css.properties.block-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.height.fit-content πŸ“‹Chrome10/13/2015 Firefox11/2/20212212
css.properties.inline-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.max-block-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.max-height.fit-content πŸ“‹Chrome10/13/2015 Firefox11/2/20212212
css.properties.max-inline-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.max-width.fit-content πŸ“‹Chrome10/13/2015 Firefox11/2/20212212
css.properties.min-block-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.min-height.fit-content Chrome10/13/2015 Firefox11/2/20212212
css.properties.min-inline-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.min-width.fit-content Chrome10/13/2015 Firefox11/2/20212212
css.properties.width.fit-content πŸ“‹Chrome10/13/2015 Firefox11/2/20212212
html.global_attributes.enterkeyhint πŸ“‹Chrome9/10/2019 Firefox11/2/2021784

2021/10

API First Browser Date Last Browser Date Days
api.SVGAnimationElement.beginEvent_event πŸ“‹Chrome5/20/2014 Firefox10/5/20212695
api.SVGAnimationElement.endEvent_event πŸ“‹Chrome5/20/2014 Firefox10/5/20212695
api.SVGAnimationElement.repeatEvent_event πŸ“‹Chrome5/20/2014 Firefox10/5/20212695
api.createImageBitmap.options_imageOrientation_parameter Chrome7/20/2016 Firefox10/5/20211903
css.properties.image-rendering.pixelated πŸ“‹Chrome3/3/2015 Firefox10/5/20212408
html.elements.input.type_datetime-local πŸ“‹Chrome6/26/2012 Firefox10/5/20213388

2021/9

API First Browser Date Last Browser Date Days
html.elements.iframe.allow.display-capture πŸ“‹Safari9/19/2019 Chrome9/21/2021733
api.AbortSignal.abort_static πŸ“‹Firefox4/19/2021 Safari9/20/2021154
api.CanvasRenderingContext2D.drawImage.ImageBitmap_source_image Chrome10/1/2013 Safari9/20/20212911
api.Crypto.subtle.secure_context_required Chrome7/25/2017 Safari9/20/20211518
api.EXT_color_buffer_float πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.EventTarget.addEventListener.options_parameter.options_signal_parameter πŸ“‹Firefox2/23/2021 Safari9/20/2021209
api.FormDataEvent πŸ“‹Chrome9/10/2019 Safari9/20/2021741
api.FormDataEvent.FormDataEvent πŸ“‹Chrome9/10/2019 Safari9/20/2021741
api.FormDataEvent.formData πŸ“‹Chrome9/10/2019 Safari9/20/2021741
api.HTMLCanvasElement.getContext.webgl2_context Firefox1/24/2017 Safari9/20/20211700
api.HTMLCanvasElement.getContext.webgl2_context.options_alpha_parameter πŸ“‹Firefox6/10/2014 Safari9/20/20212659
api.HTMLCanvasElement.getContext.webgl2_context.options_failIfMajorPerformanceCaveat_parameter πŸ“‹Firefox9/22/2015 Safari9/20/20212190
api.HTMLCanvasElement.getContext.webgl2_context.options_powerPreference_parameter πŸ“‹Firefox10/23/2018 Safari9/20/20211063
api.HTMLElement.focus.options_preventScroll_parameter Chrome1/23/2018 Safari9/20/20211336
api.HTMLFormElement.formdata_event πŸ“‹Chrome9/10/2019 Safari9/20/2021741
api.IDBCursor.request πŸ“‹Chrome7/30/2019 Safari9/20/2021783
api.IDBFactory.open πŸ“‹Firefox1/31/2012 Safari9/20/20213520
api.IDBTransaction.commit πŸ“‹Chrome7/30/2019 Safari9/20/2021783
api.ImageBitmap πŸ“‹Firefox11/3/2015 Safari9/20/20212148
api.ImageBitmap.close πŸ“‹Firefox4/26/2016 Safari9/20/20211973
api.ImageBitmap.height πŸ“‹Firefox11/3/2015 Safari9/20/20212148
api.ImageBitmap.width πŸ“‹Firefox11/3/2015 Safari9/20/20212148
api.MediaError.message πŸ“‹Firefox3/7/2017 Safari9/20/20211658
api.MediaSession πŸ“‹Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.metadata πŸ“‹Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.playbackState πŸ“‹Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler πŸ“‹Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler.nexttrack_type Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler.pause_type Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler.play_type Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler.previoustrack_type Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler.seekbackward_type Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler.seekforward_type Chrome3/12/2019 Safari9/20/2021923
api.MediaSession.setActionHandler.seekto_type Chrome10/22/2019 Safari9/20/2021699
api.MediaSession.setActionHandler.stop_type Chrome9/10/2019 Safari9/20/2021741
api.MediaSession.setPositionState πŸ“‹Chrome4/7/2020 Safari9/20/2021531
api.Navigator.mediaSession πŸ“‹Chrome3/12/2019 Safari9/20/2021923
api.Notification.requestPermission_static πŸ“‹Chrome6/26/2012 Safari9/20/20213373
api.Notification.requestPermission_static.returns_promise Chrome12/1/2015 Safari9/20/20212120
api.Performance.timeOrigin πŸ“‹Firefox4/19/2017 Safari9/20/20211615
api.PerformanceNavigationTiming πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.domComplete πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.domContentLoadedEventEnd πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.domContentLoadedEventStart πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.domInteractive πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.loadEventEnd πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.loadEventStart πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.redirectCount πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.toJSON πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.type πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.unloadEventEnd πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceNavigationTiming.unloadEventStart πŸ“‹Chrome3/9/2017 Safari9/20/20211656
api.PerformanceObserver.takeRecords πŸ“‹Chrome3/6/2018 Safari9/20/20211294
api.RTCRtpSender.getParameters.return_object_property_rtcp πŸ“‹Firefox4/26/2016 Safari9/20/20211973
api.RTCRtpSender.setParameters.parameters_rtcp_parameter πŸ“‹Firefox4/26/2016 Safari9/20/20211973
api.SVGElement.focus.options_preventScroll_parameter Firefox7/9/2019 Safari9/20/2021804
api.SecurityPolicyViolationEvent.disposition πŸ“‹Chrome1/25/2017 Safari9/20/20211699
api.SecurityPolicyViolationEvent.sample πŸ“‹Chrome6/5/2017 Safari9/20/20211568
api.SubmitEvent πŸ“‹Chrome4/7/2020 Safari9/20/2021531
api.SubmitEvent.SubmitEvent πŸ“‹Chrome4/7/2020 Safari9/20/2021531
api.SubtleCrypto.secure_context_required Chrome7/25/2017 Safari9/20/20211518
api.WebGL2RenderingContext πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.activeTexture πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.attachShader πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.beginQuery πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.beginTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindAttribLocation πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindBuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindBufferBase πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindBufferRange πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindFramebuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindRenderbuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindSampler πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindTexture πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bindVertexArray πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.blendColor πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.blendEquation πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.blendEquationSeparate πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.blendFunc πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.blendFuncSeparate πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.blitFramebuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bufferData πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.bufferSubData πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.canvas πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.checkFramebufferStatus πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clear πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clearBufferfi πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clearBufferfv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clearBufferiv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clearBufferuiv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clearColor πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clearDepth πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clearStencil πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.clientWaitSync πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.colorMask πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.compileShader πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.compressedTexImage2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.compressedTexImage3D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.compressedTexSubImage2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.compressedTexSubImage3D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.copyBufferSubData πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.copyTexImage2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.copyTexSubImage2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.copyTexSubImage3D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createBuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createFramebuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createProgram πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createQuery πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createRenderbuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createSampler πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createShader πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createTexture πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.createVertexArray πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.cullFace πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteBuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteFramebuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteProgram πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteQuery πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteRenderbuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteSampler πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteShader πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteSync πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteTexture πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.deleteVertexArray πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.depthFunc πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.depthMask πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.depthRange πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.detachShader πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.disable πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.disableVertexAttribArray πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawArrays πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawArraysInstanced πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawBuffers πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawElements πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawElementsInstanced πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawRangeElements πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawingBufferHeight πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.drawingBufferWidth πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.enable πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.enableVertexAttribArray πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.endQuery πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.endTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.fenceSync πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.finish πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.flush πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.framebufferRenderbuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.framebufferTexture2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.framebufferTextureLayer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.frontFace πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.generateMipmap πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getActiveAttrib πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getActiveUniform πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getActiveUniformBlockName πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getActiveUniformBlockParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getActiveUniforms πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getAttachedShaders πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getAttribLocation πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getBufferParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getBufferSubData πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getContextAttributes πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getError πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getExtension πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getFragDataLocation πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getFramebufferAttachmentParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getIndexedParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getInternalformatParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getProgramInfoLog πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getProgramParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getQuery πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getQueryParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getRenderbufferParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getSamplerParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getShaderInfoLog πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getShaderParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getShaderPrecisionFormat πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getShaderSource πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getSupportedExtensions πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getSyncParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getTexParameter πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getTransformFeedbackVarying πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getUniform πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getUniformBlockIndex πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getUniformIndices πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getUniformLocation πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getVertexAttrib πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.getVertexAttribOffset πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.hint πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.invalidateFramebuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.invalidateSubFramebuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isBuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isContextLost πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isEnabled πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isFramebuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isProgram πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isQuery πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isRenderbuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isSampler πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isShader πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isSync πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isTexture πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.isVertexArray πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.lineWidth πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.linkProgram πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.pauseTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.pixelStorei πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.polygonOffset πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.readBuffer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.readPixels πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.renderbufferStorage πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.renderbufferStorageMultisample πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.resumeTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.sampleCoverage πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.samplerParameterf πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.samplerParameteri πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.scissor πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.shaderSource πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.stencilFunc πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.stencilFuncSeparate πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.stencilMask πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.stencilMaskSeparate πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.stencilOp πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.stencilOpSeparate πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texImage2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texImage3D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texParameterf πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texParameteri πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texStorage2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texStorage3D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texSubImage2D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.texSubImage3D πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.transformFeedbackVaryings πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform1f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform1fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform1i πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform1iv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform1ui πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform1uiv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform2f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform2fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform2i πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform2iv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform2ui πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform2uiv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform3f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform3fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform3i πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform3iv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform3ui πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform3uiv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform4f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform4fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform4i πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform4iv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform4ui πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniform4uiv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformBlockBinding πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix2fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix2x3fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix2x4fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix3fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix3x2fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix3x4fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix4fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix4x2fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.uniformMatrix4x3fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.useProgram πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.validateProgram πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib1f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib1fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib2f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib2fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib3f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib3fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib4f πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttrib4fv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttribDivisor πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttribI4i πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttribI4iv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttribI4ui πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttribI4uiv πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttribIPointer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.vertexAttribPointer πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.viewport πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGL2RenderingContext.waitSync πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGLQuery πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGLSampler πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGLSync πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGLTransformFeedback πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WebGLVertexArrayObject πŸ“‹Firefox1/24/2017 Safari9/20/20211700
api.WheelEvent.pinch_to_zoom_support Chrome11/12/2013 Safari9/20/20212869
api.XMLHttpRequest.send.body_URLSearchParams_type Firefox1/26/2016 Safari9/20/20212064
api.createImageBitmap πŸ“‹Firefox11/3/2015 Safari9/20/20212148
css.properties.aspect-ratio πŸ“‹Chrome1/19/2021 Safari9/20/2021244
css.properties.aspect-ratio.auto πŸ“‹Chrome1/19/2021 Safari9/20/2021244
css.properties.border-end-end-radius πŸ“‹Firefox3/19/2019 Safari9/20/2021916
css.properties.border-end-start-radius πŸ“‹Firefox3/19/2019 Safari9/20/2021916
css.properties.border-start-end-radius πŸ“‹Firefox3/19/2019 Safari9/20/2021916
css.properties.border-start-start-radius πŸ“‹Firefox3/19/2019 Safari9/20/2021916
css.properties.list-style-type.cjk-decimal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.disclosure-closed πŸ“‹Firefox10/14/2014 Safari9/20/20212533
css.properties.list-style-type.disclosure-open πŸ“‹Firefox10/14/2014 Safari9/20/20212533
css.properties.list-style-type.ethiopic-numeric πŸ“‹Firefox10/14/2014 Safari9/20/20212533
css.properties.list-style-type.japanese-formal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.japanese-informal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.korean-hangul-formal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.korean-hanja-formal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.korean-hanja-informal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.simp-chinese-formal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.simp-chinese-informal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.tamil πŸ“‹Firefox10/14/2014 Safari9/20/20212533
css.properties.list-style-type.trad-chinese-formal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.list-style-type.trad-chinese-informal πŸ“‹Firefox3/18/2014 Safari9/20/20212743
css.properties.scroll-margin-block πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-margin-block-end πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-margin-block-start πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-margin-inline πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-margin-inline-end πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-margin-inline-start πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-block πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-block.auto πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-block-end πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-block-end.auto πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-block-start πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-block-start.auto πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-inline πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-inline.auto πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-inline-end πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-inline-end.auto πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-inline-start πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.properties.scroll-padding-inline-start.auto πŸ“‹Chrome9/4/2018 Safari9/20/20211112
css.selectors.any-link.not_match_link Chrome3/6/2018 Safari9/20/20211294
css.selectors.link.not_match_link Chrome12/11/2008 Safari9/20/20214666
css.selectors.visited.not_match_link Chrome12/11/2008 Safari9/20/20214666
css.types.gradient.linear-gradient.premultiplied_gradients Chrome8/20/2013 Safari9/20/20212953
css.types.gradient.radial-gradient.premultiplied_gradients Chrome8/20/2013 Safari9/20/20212953
html.elements.img.aspect_ratio_computed_from_attributes Chrome12/10/2019 Safari9/20/2021650
javascript.builtins.BigInt64Array πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.BigInt64Array.BigInt64Array πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.BigUint64Array πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.BigUint64Array.BigUint64Array πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.DataView.getBigInt64 πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.DataView.getBigUint64 πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.DataView.setBigInt64 πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.DataView.setBigUint64 πŸ“‹Chrome5/29/2018 Safari9/20/20211210
javascript.builtins.Error.Error.options_cause_parameter πŸ“‹Firefox8/10/2021 Safari9/20/202141
javascript.builtins.Error.cause πŸ“‹Firefox8/10/2021 Safari9/20/202141
javascript.builtins.RegExp.hasIndices πŸ“‹Chrome4/13/2021 Safari9/20/2021160
javascript.classes.private_class_fields_in πŸ“‹Chrome5/25/2021 Safari9/20/2021118
javascript.classes.private_class_methods πŸ“‹Chrome7/27/2020 Safari9/20/2021420
javascript.operators.await.top_level πŸ“‹Chrome3/2/2021 Safari9/20/2021202
css.properties.break-inside.avoid-column Chrome2/4/2020 Firefox9/7/2021581
css.properties.break-inside.avoid-page Chrome2/4/2020 Firefox9/7/2021581
css.properties.break-inside.multicol_context.avoid-column Chrome4/13/2016 Firefox9/7/20211973
css.properties.font-family.system-ui Chrome1/25/2017 Firefox9/7/20211686

2021/8

API First Browser Date Last Browser Date Days
api.EXT_texture_compression_rgtc πŸ“‹Firefox1/29/2019 Chrome8/31/2021945
css.properties.justify-content.flex_context.left_right Safari9/30/2015 Chrome8/31/20212162
api.VisualViewport πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.height πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.offsetLeft πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.offsetTop πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.pageLeft πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.pageTop πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.resize_event πŸ“‹Chrome10/17/2017 Firefox8/10/20211393
api.VisualViewport.scale πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.scroll_event πŸ“‹Chrome10/17/2017 Firefox8/10/20211393
api.VisualViewport.width πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
api.Window.visualViewport πŸ“‹Chrome9/5/2017 Firefox8/10/20211435
css.properties.tab-size πŸ“‹Chrome7/31/2012 Firefox8/10/20213297
javascript.builtins.Intl.DateTimeFormat.formatRange πŸ“‹Chrome7/30/2019 Firefox8/10/2021742
javascript.builtins.Intl.DateTimeFormat.formatRangeToParts πŸ“‹Chrome7/30/2019 Firefox8/10/2021742

2021/7

API First Browser Date Last Browser Date Days
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_dayPeriod_parameter Safari4/26/2021 Chrome7/20/202185
api.WheelEvent.wheelDelta Safari10/26/2007 Firefox7/13/20215009
api.WheelEvent.wheelDeltaX Safari10/26/2007 Firefox7/13/20215009
api.WheelEvent.wheelDeltaY Safari10/26/2007 Firefox7/13/20215009
css.properties.scroll-margin πŸ“‹Chrome9/4/2018 Firefox7/13/20211043
javascript.classes.private_class_fields πŸ“‹Chrome4/23/2019 Firefox7/13/2021812

2021/5

API First Browser Date Last Browser Date Days
api.RTCStatsReport.type_remote-outbound-rtp πŸ“‹Firefox2/4/2014 Chrome5/25/20212667
api.RTCStatsReport.type_remote-outbound-rtp.kind πŸ“‹Firefox10/23/2018 Chrome5/25/2021945
api.RTCStatsReport.type_remote-outbound-rtp.ssrc πŸ“‹Firefox2/4/2014 Chrome5/25/20212667
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.IntlLegacyConstructedSymbol πŸ“‹Firefox6/13/2017 Chrome5/25/20211442
javascript.builtins.Intl.NumberFormat.NumberFormat.IntlLegacyConstructedSymbol πŸ“‹Firefox6/13/2017 Chrome5/25/20211442

2021/4

API First Browser Date Last Browser Date Days
api.AbstractRange πŸ“‹Firefox9/3/2019 Safari4/26/2021601
api.AbstractRange.collapsed πŸ“‹Firefox9/3/2019 Safari4/26/2021601
api.AbstractRange.endContainer πŸ“‹Firefox9/3/2019 Safari4/26/2021601
api.AbstractRange.endOffset πŸ“‹Firefox9/3/2019 Safari4/26/2021601
api.AbstractRange.startContainer πŸ“‹Firefox9/3/2019 Safari4/26/2021601
api.AbstractRange.startOffset πŸ“‹Firefox9/3/2019 Safari4/26/2021601
api.AnalyserNode.AnalyserNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.AnalyserNode.getFloatTimeDomainData πŸ“‹Chrome5/20/2014 Safari4/26/20212533
api.AudioBuffer.AudioBuffer πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.AudioBuffer.copyFromChannel πŸ“‹Firefox2/4/2014 Safari4/26/20212638
api.AudioBuffer.copyToChannel πŸ“‹Firefox2/4/2014 Safari4/26/20212638
api.AudioBufferSourceNode.AudioBufferSourceNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.AudioBufferSourceNode.detune πŸ“‹Chrome7/21/2015 Safari4/26/20212106
api.AudioContext πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.AudioContext.AudioContext πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.AudioContext.AudioContext.options_sampleRate_parameter πŸ“‹Firefox6/26/2018 Safari4/26/20211035
api.AudioContext.baseLatency πŸ“‹Chrome4/19/2017 Safari4/26/20211468
api.AudioContext.getOutputTimestamp πŸ“‹Chrome3/9/2017 Safari4/26/20211509
api.AudioDestinationNode.maxChannelCount πŸ“‹Chrome5/21/2013 Safari4/26/20212897
api.AudioParamMap πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.@@iterator Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.entries Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.forEach Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.get Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.has Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.keys Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.size Chrome4/17/2018 Safari4/26/20211105
api.AudioParamMap.values Chrome4/17/2018 Safari4/26/20211105
api.AudioWorklet πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletGlobalScope πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletGlobalScope.currentFrame πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletGlobalScope.currentTime πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletGlobalScope.registerProcessor πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletGlobalScope.sampleRate πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletNode πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletNode.AudioWorkletNode πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletNode.parameters πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletNode.port πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletNode.processorerror_event πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.AudioWorkletProcessor πŸ“‹Chrome1/23/2018 Safari4/26/20211189
api.AudioWorkletProcessor.AudioWorkletProcessor πŸ“‹Chrome1/23/2018 Safari4/26/20211189
api.AudioWorkletProcessor.port πŸ“‹Chrome1/23/2018 Safari4/26/20211189
api.BaseAudioContext πŸ“‹Chrome1/25/2017 Safari4/26/20211552
api.BaseAudioContext.audioWorklet πŸ“‹Chrome4/17/2018 Safari4/26/20211105
api.BaseAudioContext.createConstantSource πŸ“‹Chrome1/25/2017 Safari4/26/20211552
api.BaseAudioContext.createIIRFilter πŸ“‹Chrome3/2/2016 Safari4/26/20211881
api.BaseAudioContext.createPeriodicWave.constraints_disableNormalization_parameter Chrome10/13/2015 Safari4/26/20212022
api.BaseAudioContext.createStereoPanner πŸ“‹Chrome3/3/2015 Safari4/26/20212246
api.BaseAudioContext.decodeAudioData.returns_promise Firefox2/24/2015 Safari4/26/20212253
api.BiquadFilterNode.BiquadFilterNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.Blob.stream πŸ“‹Chrome7/30/2019 Safari4/26/2021636
api.CSSConditionRule πŸ“‹Firefox4/2/2013 Safari4/26/20212946
api.CSSConditionRule.conditionText πŸ“‹Firefox4/2/2013 Safari4/26/20212946
api.CSSGroupingRule πŸ“‹Firefox4/2/2013 Safari4/26/20212946
api.ChannelMergerNode.ChannelMergerNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.ChannelSplitterNode.ChannelSplitterNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.ConstantSourceNode πŸ“‹Chrome1/25/2017 Safari4/26/20211552
api.ConstantSourceNode.ConstantSourceNode πŸ“‹Chrome1/25/2017 Safari4/26/20211552
api.ConstantSourceNode.offset πŸ“‹Chrome1/25/2017 Safari4/26/20211552
api.ConvolverNode.ConvolverNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.DataTransfer.DataTransfer πŸ“‹Chrome6/5/2017 Safari4/26/20211421
api.DelayNode.DelayNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.Document.visibilitychange_event πŸ“‹Firefox9/28/2017 Safari4/26/20211306
api.DynamicsCompressorNode.DynamicsCompressorNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.EXT_float_blend πŸ“‹Firefox5/21/2019 Safari4/26/2021706
api.GainNode.GainNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.HTMLAreaElement.referrerPolicy πŸ“‹Chrome7/20/2016 Safari4/26/20211741
api.HTMLLinkElement.referrerPolicy πŸ“‹Firefox11/15/2016 Safari4/26/20211623
api.IIRFilterNode πŸ“‹Chrome3/2/2016 Safari4/26/20211881
api.IIRFilterNode.IIRFilterNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.IIRFilterNode.getFrequencyResponse πŸ“‹Chrome3/2/2016 Safari4/26/20211881
api.MediaElementAudioSourceNode.MediaElementAudioSourceNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.MediaRecorder πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.MediaRecorder πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.MediaRecorder.options_parameter Firefox12/15/2015 Safari4/26/20211959
api.MediaRecorder.audioBitsPerSecond πŸ“‹Chrome3/2/2016 Safari4/26/20211881
api.MediaRecorder.dataavailable_event πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.error_event πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.isTypeSupported_static πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.mimeType πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.pause πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.pause_event πŸ“‹Chrome3/2/2016 Safari4/26/20211881
api.MediaRecorder.requestData πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.resume πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.resume_event πŸ“‹Chrome3/2/2016 Safari4/26/20211881
api.MediaRecorder.start πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.start_event πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.state πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.stop πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.stop_event πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.stream πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.MediaRecorder.videoBitsPerSecond πŸ“‹Chrome3/2/2016 Safari4/26/20211881
api.MediaStreamAudioDestinationNode.MediaStreamAudioDestinationNode πŸ“‹Chrome3/9/2017 Safari4/26/20211509
api.MediaStreamAudioSourceNode.MediaStreamAudioSourceNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.OES_fbo_render_mipmap πŸ“‹Firefox12/10/2019 Safari4/26/2021503
api.OfflineAudioContext πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.OfflineAudioContext.OfflineAudioContext πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.OfflineAudioContext.OfflineAudioContext.options_parameter Chrome10/17/2017 Safari4/26/20211287
api.OfflineAudioContext.length πŸ“‹Chrome5/25/2016 Safari4/26/20211797
api.OfflineAudioContext.startRendering.returns_promise Firefox3/31/2015 Safari4/26/20212218
api.OscillatorNode.OscillatorNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.PannerNode.PannerNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.PannerNode.orientationX πŸ“‹Chrome7/20/2016 Safari4/26/20211741
api.PannerNode.orientationY πŸ“‹Chrome7/20/2016 Safari4/26/20211741
api.PannerNode.orientationZ πŸ“‹Chrome7/20/2016 Safari4/26/20211741
api.PannerNode.positionX πŸ“‹Chrome7/20/2016 Safari4/26/20211741
api.PannerNode.positionY πŸ“‹Chrome7/20/2016 Safari4/26/20211741
api.PannerNode.positionZ πŸ“‹Chrome7/20/2016 Safari4/26/20211741
api.Performance.toJSON πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.PerformanceNavigation.toJSON πŸ“‹Firefox10/29/2013 Safari4/26/20212736
api.PerformancePaintTiming πŸ“‹Chrome7/25/2017 Safari4/26/20211371
api.PerformancePaintTiming.first-contentful-paint πŸ“‹Chrome7/25/2017 Safari4/26/20211371
api.PeriodicWave.PeriodicWave πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.RTCIceCandidate.usernameFragment πŸ“‹Chrome4/23/2019 Safari4/26/2021734
api.RTCPeerConnection.restartIce πŸ“‹Chrome9/10/2019 Safari4/26/2021594
api.RTCPeerConnection.setLocalDescription.description_parameter_optional Chrome2/4/2020 Safari4/26/2021447
api.RTCStatsReport.type_remote-inbound-rtp.id πŸ“‹Firefox1/7/2020 Safari4/26/2021475
api.RTCStatsReport.type_remote-inbound-rtp.localId πŸ“‹Firefox1/7/2020 Safari4/26/2021475
api.RTCStatsReport.type_remote-inbound-rtp.timestamp πŸ“‹Firefox1/7/2020 Safari4/26/2021475
api.RTCStatsReport.type_remote-inbound-rtp.type πŸ“‹Firefox1/7/2020 Safari4/26/2021475
api.Request.formData πŸ“‹Firefox7/2/2015 Safari4/26/20212125
api.Response.formData πŸ“‹Firefox7/2/2015 Safari4/26/20212125
api.StereoPannerNode πŸ“‹Chrome3/3/2015 Safari4/26/20212246
api.StereoPannerNode.StereoPannerNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.StereoPannerNode.pan πŸ“‹Chrome3/3/2015 Safari4/26/20212246
api.TextEncoder.encodeInto πŸ“‹Firefox3/19/2019 Safari4/26/2021769
api.URL.URL πŸ“‹Chrome5/15/2012 Safari4/26/20213268
api.WEBGL_compressed_texture_s3tc_srgb πŸ“‹Chrome7/25/2017 Safari4/26/20211371
api.WaveShaperNode.WaveShaperNode πŸ“‹Chrome12/1/2016 Safari4/26/20211607
api.Worklet πŸ“‹Chrome3/6/2018 Safari4/26/20211147
api.Worklet.addModule πŸ“‹Chrome3/6/2018 Safari4/26/20211147
api.WorkletGlobalScope πŸ“‹Chrome3/6/2018 Safari4/26/20211147
css.at-rules.supports.selector Firefox9/3/2019 Safari4/26/2021601
css.properties.border-block πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.border-block-color πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.border-block-style πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.border-block-width πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.border-inline πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.border-inline-color πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.border-inline-style πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.border-inline-width πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.column-gap.flex_context πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.gap.flex_context πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.gap.multicol_context πŸ“‹Chrome4/17/2018 Safari4/26/20211105
css.properties.inset πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.inset.auto πŸ“‹Firefox1/7/2020 Safari4/26/2021475
css.properties.inset-block πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.inset-block.auto πŸ“‹Firefox1/7/2020 Safari4/26/2021475
css.properties.inset-block-end πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.inset-block-end.auto πŸ“‹Firefox1/7/2020 Safari4/26/2021475
css.properties.inset-block-start πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.inset-block-start.auto πŸ“‹Firefox1/7/2020 Safari4/26/2021475
css.properties.inset-inline πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.inset-inline.auto πŸ“‹Firefox1/7/2020 Safari4/26/2021475
css.properties.inset-inline-end πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.inset-inline-end.auto πŸ“‹Firefox1/7/2020 Safari4/26/2021475
css.properties.inset-inline-start πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.inset-inline-start.auto πŸ“‹Firefox1/7/2020 Safari4/26/2021475
css.properties.list-style-type.string Firefox7/2/2015 Safari4/26/20212125
css.properties.margin-block πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.margin-inline πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.padding-block πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.padding-inline πŸ“‹Firefox3/19/2019 Safari4/26/2021769
css.properties.quotes.auto πŸ“‹Firefox10/22/2019 Safari4/26/2021552
css.properties.row-gap.flex_context πŸ“‹Firefox10/23/2018 Safari4/26/2021916
css.properties.scroll-margin-bottom πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-margin-left πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-margin-right πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-margin-top πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-padding πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-padding-bottom πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-padding-left πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-padding-right πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.properties.scroll-padding-top πŸ“‹Chrome9/4/2018 Safari4/26/2021965
css.selectors.file-selector-button πŸ“‹Firefox10/20/2020 Safari4/26/2021188
html.elements.input.type_date πŸ“‹Chrome6/26/2012 Safari4/26/20213226
html.elements.input.type_time πŸ“‹Chrome6/26/2012 Safari4/26/20213226
javascript.builtins.FinalizationRegistry πŸ“‹Chrome7/27/2020 Safari4/26/2021273
javascript.builtins.FinalizationRegistry.FinalizationRegistry πŸ“‹Chrome7/27/2020 Safari4/26/2021273
javascript.builtins.FinalizationRegistry.register πŸ“‹Chrome7/27/2020 Safari4/26/2021273
javascript.builtins.FinalizationRegistry.unregister πŸ“‹Chrome7/27/2020 Safari4/26/2021273
javascript.builtins.Intl.Collator.Collator.options_collation_parameter Chrome10/20/2020 Safari4/26/2021188
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_calendar_parameter Chrome2/4/2020 Safari4/26/2021447
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_dateStyle_parameter Chrome7/30/2019 Safari4/26/2021636
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_fractionalSecondDigits_parameter Chrome7/27/2020 Safari4/26/2021273
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_numberingSystem_parameter Chrome2/4/2020 Safari4/26/2021447
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeStyle_parameter Chrome7/30/2019 Safari4/26/2021636
javascript.builtins.Intl.DisplayNames πŸ“‹Chrome4/7/2020 Safari4/26/2021384
javascript.builtins.Intl.DisplayNames.DisplayNames πŸ“‹Chrome4/7/2020 Safari4/26/2021384
javascript.builtins.Intl.DisplayNames.of πŸ“‹Chrome4/7/2020 Safari4/26/2021384
javascript.builtins.Intl.DisplayNames.resolvedOptions πŸ“‹Chrome4/7/2020 Safari4/26/2021384
javascript.builtins.Intl.DisplayNames.supportedLocalesOf πŸ“‹Chrome4/7/2020 Safari4/26/2021384
javascript.builtins.Intl.ListFormat πŸ“‹Chrome1/29/2019 Safari4/26/2021818
javascript.builtins.Intl.ListFormat.ListFormat πŸ“‹Chrome1/29/2019 Safari4/26/2021818
javascript.builtins.Intl.ListFormat.format πŸ“‹Chrome1/29/2019 Safari4/26/2021818
javascript.builtins.Intl.ListFormat.formatToParts πŸ“‹Chrome1/29/2019 Safari4/26/2021818
javascript.builtins.Intl.ListFormat.resolvedOptions πŸ“‹Chrome1/29/2019 Safari4/26/2021818
javascript.builtins.Intl.ListFormat.supportedLocalesOf πŸ“‹Chrome1/29/2019 Safari4/26/2021818
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_compactDisplay_parameter Chrome9/10/2019 Safari4/26/2021594
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_currencyDisplay_parameter Chrome9/10/2019 Safari4/26/2021594
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_currencySign_parameter Chrome9/10/2019 Safari4/26/2021594
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_notation_parameter Chrome9/10/2019 Safari4/26/2021594
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_signDisplay_parameter Chrome9/10/2019 Safari4/26/2021594
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_unitDisplay_parameter Chrome9/10/2019 Safari4/26/2021594
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_unit_parameter Chrome9/10/2019 Safari4/26/2021594
javascript.builtins.WeakRef πŸ“‹Chrome7/27/2020 Safari4/26/2021273
javascript.builtins.WeakRef.WeakRef πŸ“‹Chrome7/27/2020 Safari4/26/2021273
javascript.builtins.WeakRef.deref πŸ“‹Chrome7/27/2020 Safari4/26/2021273
javascript.classes.static_class_fields πŸ“‹Chrome1/29/2019 Safari4/26/2021818
javascript.statements.export.namespace πŸ“‹Chrome1/29/2019 Safari4/26/2021818
api.StaticRange.StaticRange πŸ“‹Firefox12/10/2019 Chrome4/13/2021490

2021/3

API First Browser Date Last Browser Date Days
api.Element.beforeinput_event πŸ“‹Safari3/27/2017 Firefox3/23/20211457
api.InputEvent.getTargetRanges πŸ“‹Safari3/27/2017 Firefox3/23/20211457
api.MediaSource.sourceclose_event πŸ“‹Chrome8/31/2016 Firefox3/23/20211665
api.Navigator.share πŸ“‹Safari3/25/2019 Chrome3/2/2021708
api.Navigator.share.data_text_parameter πŸ“‹Firefox12/10/2019 Chrome3/2/2021448
css.properties.text-decoration-thickness πŸ“‹Safari3/25/2019 Chrome3/2/2021708

2021/1

API First Browser Date Last Browser Date Days
css.properties.touch-action.pinch-zoom Chrome1/25/2017 Firefox1/26/20211462
html.elements.link.rel.preload πŸ“‹Chrome4/13/2016 Firefox1/26/20211749
html.elements.link.rel.preload.as-fetch Chrome4/13/2016 Firefox1/26/20211749
html.elements.link.rel.preload.as-font Chrome4/13/2016 Firefox1/26/20211749
html.elements.link.rel.preload.as-image Chrome4/13/2016 Firefox1/26/20211749
html.elements.link.rel.preload.as-script Chrome4/13/2016 Firefox1/26/20211749
html.elements.link.rel.preload.as-style Chrome4/13/2016 Firefox1/26/20211749
api.RTCRtpTransceiver.stop πŸ“‹Safari9/19/2017 Chrome1/19/20211218
css.properties.clip-path.path Firefox12/10/2019 Chrome1/19/2021406
css.properties.hyphens.auto Safari7/20/2011 Chrome1/19/20213471
css.selectors.is πŸ“‹Firefox6/30/2020 Chrome1/19/2021203
css.selectors.is.forgiving_selector_list Safari9/16/2020 Chrome1/19/2021125
css.selectors.not.selector_list Safari9/30/2015 Chrome1/19/20211938
css.selectors.where πŸ“‹Firefox6/30/2020 Chrome1/19/2021203
css.selectors.where.forgiving_selector_list Safari9/16/2020 Chrome1/19/2021125
css.types.basic-shape.path.clip-path πŸ“‹Firefox1/7/2020 Chrome1/19/2021378
html.elements.a.implicit_noopener Safari3/25/2019 Chrome1/19/2021666
html.elements.area.implicit_noopener Safari3/25/2019 Chrome1/19/2021666

2020/11

API First Browser Date Last Browser Date Days
api.Element.transitioncancel_event πŸ“‹Firefox4/19/2017 Chrome11/17/20201308
css.properties.hyphens.language_croatian Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_danish Safari7/20/2011 Chrome11/17/20203408
css.properties.hyphens.language_french Safari7/20/2011 Chrome11/17/20203408
css.properties.hyphens.language_german_reformed_orthography Safari7/20/2011 Chrome11/17/20203408
css.properties.hyphens.language_hungarian Firefox12/20/2011 Chrome11/17/20203255
css.properties.hyphens.language_norwegian_no Safari7/20/2011 Chrome11/17/20203408
css.properties.hyphens.language_portuguese Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_spanish Safari7/20/2011 Chrome11/17/20203408
css.properties.text-decoration-thickness.auto πŸ“‹Safari3/25/2019 Chrome11/17/2020603
css.properties.text-decoration-thickness.from-font πŸ“‹Safari3/25/2019 Chrome11/17/2020603
css.properties.text-underline-offset πŸ“‹Safari3/25/2019 Chrome11/17/2020603
css.properties.text-underline-offset.auto πŸ“‹Safari3/25/2019 Chrome11/17/2020603
css.properties.text-underline-position.from-font Safari3/25/2019 Chrome11/17/2020603
css.types.gradient.conic-gradient πŸ“‹Chrome9/4/2018 Firefox11/17/2020805
css.types.gradient.conic-gradient.doubleposition Chrome1/29/2019 Firefox11/17/2020658
css.types.gradient.repeating-conic-gradient πŸ“‹Chrome9/4/2018 Firefox11/17/2020805

2020/10

API First Browser Date Last Browser Date Days
api.Document.replaceChildren πŸ“‹Firefox6/30/2020 Chrome10/20/2020112
api.DocumentFragment.replaceChildren πŸ“‹Firefox6/30/2020 Chrome10/20/2020112
api.Element.replaceChildren πŸ“‹Firefox6/30/2020 Chrome10/20/2020112
api.Element.scrollLeft πŸ“‹Safari6/23/2003 Chrome10/20/20206329
api.MediaMetadata πŸ“‹Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.MediaMetadata πŸ“‹Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.album πŸ“‹Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.artist πŸ“‹Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.artwork πŸ“‹Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.title πŸ“‹Chrome3/9/2017 Firefox10/20/20201321
css.selectors.marker πŸ“‹Safari4/12/2018 Chrome10/20/2020922

2020/9

API First Browser Date Last Browser Date Days
css.properties.flex-direction.column-reverse πŸ“‹Chrome7/31/2012 Firefox9/22/20202975
css.properties.flex-direction.row-reverse πŸ“‹Chrome7/31/2012 Firefox9/22/20202975
api.AudioScheduledSourceNode πŸ“‹Chrome3/9/2017 Safari9/16/20201287
api.Blob.arrayBuffer πŸ“‹Chrome7/30/2019 Safari9/16/2020414
api.Blob.text πŸ“‹Chrome7/30/2019 Safari9/16/2020414
api.BlobEvent πŸ“‹Firefox5/14/2013 Safari9/16/20202682
api.BlobEvent.BlobEvent πŸ“‹Firefox5/14/2013 Safari9/16/20202682
api.BlobEvent.data πŸ“‹Firefox5/14/2013 Safari9/16/20202682
api.Document.getAnimations πŸ“‹Firefox4/7/2020 Safari9/16/2020162
api.DragEvent πŸ“‹Firefox6/30/2009 Safari9/16/20204096
api.DragEvent.DragEvent πŸ“‹Firefox6/30/2009 Safari9/16/20204096
api.DragEvent.dataTransfer πŸ“‹Firefox6/30/2009 Safari9/16/20204096
api.EXT_color_buffer_half_float πŸ“‹Firefox6/7/2016 Safari9/16/20201562
api.Element.animate.options_pseudoElement_parameter πŸ“‹Firefox4/7/2020 Safari9/16/2020162
api.Element.scroll.options_behavior_parameter Firefox2/24/2015 Safari9/16/20202031
api.Element.scrollBy.options_behavior_parameter Firefox2/24/2015 Safari9/16/20202031
api.Element.scrollIntoView.options_parameter Firefox2/24/2015 Safari9/16/20202031
api.Element.scrollTo.options_behavior_parameter Firefox2/24/2015 Safari9/16/20202031
api.EventTarget.EventTarget πŸ“‹Chrome1/23/2018 Safari9/16/2020967
api.HTMLAnchorElement.referrerPolicy πŸ“‹Chrome7/20/2016 Safari9/16/20201519
api.HTMLIFrameElement.referrerPolicy πŸ“‹Chrome7/20/2016 Safari9/16/20201519
api.HTMLImageElement.referrerPolicy πŸ“‹Chrome7/20/2016 Safari9/16/20201519
api.HTMLScriptElement.referrerPolicy πŸ“‹Chrome10/16/2018 Safari9/16/2020701
api.IntersectionObserver.IntersectionObserver.options_root_parameter_Document Chrome4/7/2020 Safari9/16/2020162
api.KeyframeEffect.pseudoElement πŸ“‹Firefox4/7/2020 Safari9/16/2020162
api.MediaQueryList.EventTarget_inheritance Chrome11/18/2014 Safari9/16/20202129
api.MediaQueryList.change_event πŸ“‹Chrome11/18/2014 Safari9/16/20202129
api.MediaQueryListEvent πŸ“‹Chrome11/18/2014 Safari9/16/20202129
api.MediaQueryListEvent.MediaQueryListEvent πŸ“‹Chrome11/18/2014 Safari9/16/20202129
api.MediaQueryListEvent.matches πŸ“‹Chrome11/18/2014 Safari9/16/20202129
api.MediaQueryListEvent.media πŸ“‹Chrome11/18/2014 Safari9/16/20202129
api.OfflineAudioCompletionEvent.OfflineAudioCompletionEvent πŸ“‹Chrome3/9/2017 Safari9/16/20201287
api.RTCStatsReport.type_inbound-rtp.kind πŸ“‹Firefox10/23/2018 Safari9/16/2020694
api.RTCStatsReport.type_outbound-rtp.kind πŸ“‹Firefox10/23/2018 Safari9/16/2020694
api.RTCStatsReport.type_remote-inbound-rtp.kind πŸ“‹Firefox10/23/2018 Safari9/16/2020694
api.ShadowRoot.getAnimations πŸ“‹Firefox4/7/2020 Safari9/16/2020162
api.URLSearchParams.delete πŸ“‹Firefox4/29/2014 Safari9/16/20202332
api.WEBGL_color_buffer_float πŸ“‹Firefox6/10/2014 Safari9/16/20202290
api.WEBGL_debug_shaders πŸ“‹Chrome12/1/2015 Safari9/16/20201751
api.WEBGL_debug_shaders.getTranslatedShaderSource πŸ“‹Chrome12/1/2015 Safari9/16/20201751
api.Window.scroll.options_behavior_parameter Firefox2/24/2015 Safari9/16/20202031
api.Window.scrollBy.options_behavior_parameter Firefox2/24/2015 Safari9/16/20202031
api.Window.scrollTo.options_behavior_parameter Firefox2/24/2015 Safari9/16/20202031
css.properties.animation-timing-function.jump Firefox1/29/2019 Safari9/16/2020596
css.properties.text-orientation πŸ“‹Firefox9/22/2015 Safari9/16/20201821
css.properties.transition-timing-function.jump Firefox1/29/2019 Safari9/16/2020596
css.types.easing-function.steps.jump Firefox1/29/2019 Safari9/16/2020596
html.elements.a.referrerpolicy πŸ“‹Chrome5/25/2016 Safari9/16/20201575
html.elements.area.referrerpolicy πŸ“‹Chrome5/25/2016 Safari9/16/20201575
html.elements.iframe.referrerpolicy πŸ“‹Chrome5/25/2016 Safari9/16/20201575
html.elements.img.referrerpolicy πŸ“‹Chrome5/25/2016 Safari9/16/20201575
html.elements.link.referrerpolicy πŸ“‹Chrome5/25/2016 Safari9/16/20201575
html.elements.script.referrerpolicy πŸ“‹Chrome10/16/2018 Safari9/16/2020701
html.elements.video.aspect_ratio_computed_from_attributes Chrome12/10/2019 Safari9/16/2020281
javascript.builtins.AggregateError πŸ“‹Firefox7/28/2020 Safari9/16/202050
javascript.builtins.AggregateError.AggregateError πŸ“‹Firefox7/28/2020 Safari9/16/202050
javascript.builtins.AggregateError.errors πŸ“‹Firefox7/28/2020 Safari9/16/202050
javascript.builtins.BigInt πŸ“‹Chrome5/29/2018 Safari9/16/2020841
javascript.builtins.BigInt.BigInt πŸ“‹Chrome5/29/2018 Safari9/16/2020841
javascript.builtins.BigInt.asIntN πŸ“‹Chrome5/29/2018 Safari9/16/2020841
javascript.builtins.BigInt.asUintN πŸ“‹Chrome5/29/2018 Safari9/16/2020841
javascript.builtins.BigInt.toLocaleString πŸ“‹Chrome5/29/2018 Safari9/16/2020841
javascript.builtins.BigInt.toLocaleString.locales_parameter Chrome7/30/2019 Safari9/16/2020414
javascript.builtins.BigInt.toLocaleString.options_parameter Chrome7/30/2019 Safari9/16/2020414
javascript.builtins.BigInt.toString πŸ“‹Chrome5/29/2018 Safari9/16/2020841
javascript.builtins.BigInt.valueOf πŸ“‹Chrome5/29/2018 Safari9/16/2020841
javascript.builtins.Intl.Locale πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.Locale πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.baseName πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.calendar πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.caseFirst πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.collation πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.hourCycle πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.language πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.maximize πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.minimize πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.numberingSystem πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.numeric πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.region πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.script πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.Locale.toString πŸ“‹Chrome4/23/2019 Safari9/16/2020512
javascript.builtins.Intl.RelativeTimeFormat πŸ“‹Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat πŸ“‹Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.locales_parameter Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.options_parameter.options_localeMatcher_parameter Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.options_parameter.options_numberingSystem_parameter Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.options_parameter.options_numeric_parameter Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.format πŸ“‹Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.formatToParts πŸ“‹Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.resolvedOptions πŸ“‹Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Intl.RelativeTimeFormat.supportedLocalesOf πŸ“‹Chrome12/4/2018 Safari9/16/2020652
javascript.builtins.Promise.any πŸ“‹Firefox7/28/2020 Safari9/16/202050
javascript.builtins.Symbol.toStringTag.dom_objects Chrome4/13/2016 Safari9/16/20201617
javascript.operators.logical_and_assignment πŸ“‹Firefox7/28/2020 Safari9/16/202050
javascript.operators.logical_or_assignment πŸ“‹Firefox7/28/2020 Safari9/16/202050
javascript.operators.nullish_coalescing_assignment πŸ“‹Firefox7/28/2020 Safari9/16/202050

2020/8

API First Browser Date Last Browser Date Days
css.properties.appearance.menulist-button πŸ“‹Safari10/26/2007 Firefox8/25/20204687
javascript.builtins.String.replaceAll πŸ“‹Safari3/24/2020 Chrome8/25/2020154

2020/7

API First Browser Date Last Browser Date Days
api.CanvasPattern.setTransform.dommatrix Safari4/12/2018 Firefox7/28/2020838
api.FileReader.loadstart_event πŸ“‹Chrome9/2/2010 Firefox7/28/20203617
api.RTCStatsReport.type_data-channel πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.bytesReceived πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.bytesSent πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.id πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.label πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.messagesReceived πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.messagesSent πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.protocol πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.state πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.timestamp πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.type πŸ“‹Chrome2/4/2020 Firefox7/28/2020175
html.elements.iframe.sandbox.allow-top-navigation-by-user-activation πŸ“‹Chrome4/19/2017 Firefox7/28/20201196
api.Animation.commitStyles πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.Animation.finished πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
api.Animation.persist πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.Animation.ready πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
api.Animation.remove_event πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.Animation.remove_filling_animation Safari3/24/2020 Chrome7/27/2020125
api.Animation.replaceState πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.Animation.timeline πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.AnimationPlaybackEvent πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
api.AnimationPlaybackEvent.AnimationPlaybackEvent πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
api.AnimationPlaybackEvent.currentTime πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
api.AnimationPlaybackEvent.timelineTime πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
api.AnimationTimeline πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.AnimationTimeline.currentTime πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.CSSAnimation πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.CSSAnimation.animationName πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.CSSTransition πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.CSSTransition.transitionProperty πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.Document.timeline πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.DocumentTimeline πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.DocumentTimeline.DocumentTimeline πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.Element.animate.implicit_tofrom Safari3/24/2020 Chrome7/27/2020125
api.Element.getAnimations πŸ“‹Safari3/24/2020 Chrome7/27/2020125
api.KeyframeEffect.getKeyframes πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
api.KeyframeEffect.setKeyframes πŸ“‹Firefox10/23/2018 Chrome7/27/2020643
css.types.global_keywords.revert πŸ“‹Safari3/21/2016 Chrome7/27/20201589

2020/6

API First Browser Date Last Browser Date Days
css.selectors.read-only πŸ“‹Chrome12/11/2008 Firefox6/30/20204219
css.selectors.read-write πŸ“‹Chrome12/11/2008 Firefox6/30/20204219
javascript.builtins.RegExp.dotAll πŸ“‹Chrome10/17/2017 Firefox6/30/2020987
javascript.regular_expressions.named_backreference πŸ“‹Chrome1/23/2018 Firefox6/30/2020889
javascript.regular_expressions.named_capturing_group πŸ“‹Chrome1/23/2018 Firefox6/30/2020889
javascript.regular_expressions.unicode_character_class_escape πŸ“‹Chrome1/23/2018 Firefox6/30/2020889

2020/5

API First Browser Date Last Browser Date Days
api.Element.animationcancel_event πŸ“‹Firefox6/13/2017 Chrome5/19/20201071
css.properties.line-break.anywhere πŸ“‹Firefox9/3/2019 Chrome5/19/2020259
css.properties.text-orientation.mixed πŸ“‹Firefox1/7/2020 Chrome5/19/2020133
css.properties.text-orientation.upright πŸ“‹Firefox1/7/2020 Chrome5/19/2020133
css.properties.grid-template-columns.repeat πŸ“‹Chrome3/9/2017 Firefox5/5/20201153
css.properties.grid-template-rows.repeat πŸ“‹Chrome3/9/2017 Firefox5/5/20201153

2020/4

API First Browser Date Last Browser Date Days
api.ServiceWorkerGlobalScope.messageerror_event πŸ“‹Safari4/12/2018 Chrome4/7/2020726
css.properties.image-orientation πŸ“‹Firefox12/10/2013 Chrome4/7/20202310
css.properties.image-orientation.from-image πŸ“‹Firefox12/10/2013 Chrome4/7/20202310
css.properties.image-orientation.none πŸ“‹Firefox12/10/2013 Chrome4/7/20202310
css.types.clamp πŸ“‹Chrome12/10/2019 Firefox4/7/2020119
css.types.max πŸ“‹Safari4/12/2018 Firefox4/7/2020726
css.types.min πŸ“‹Safari4/12/2018 Firefox4/7/2020726

2020/3

API First Browser Date Last Browser Date Days
api.Animation πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.Animation πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.cancel πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.cancel_event πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.currentTime πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.effect πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.Animation.finish πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.finish_event πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.id πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.pause πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.pending πŸ“‹Firefox3/13/2018 Safari3/24/2020742
api.Animation.play πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.playState πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.playbackRate πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.reverse πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.startTime πŸ“‹Firefox8/2/2016 Safari3/24/20201330
api.Animation.updatePlaybackRate πŸ“‹Firefox5/9/2018 Safari3/24/2020685
api.AnimationEffect πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.AnimationEffect.getComputedTiming πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.AnimationEffect.getTiming πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.AnimationEffect.updateTiming πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.AnimationEvent.pseudoElement πŸ“‹Firefox8/6/2013 Safari3/24/20202422
api.Clipboard πŸ“‹Chrome4/17/2018 Safari3/24/2020707
api.Clipboard.writeText πŸ“‹Chrome4/17/2018 Safari3/24/2020707
api.Element.animate πŸ“‹Chrome7/16/2014 Safari3/24/20202078
api.Element.animate.options_id_parameter πŸ“‹Chrome4/13/2016 Safari3/24/20201441
api.Element.part πŸ“‹Chrome3/12/2019 Safari3/24/2020378
api.Element.transitionrun_event πŸ“‹Firefox4/19/2017 Safari3/24/20201070
api.Element.transitionstart_event πŸ“‹Firefox4/19/2017 Safari3/24/20201070
api.FormData.worker_support Firefox7/2/2015 Safari3/24/20201727
api.GeolocationCoordinates πŸ“‹Chrome12/10/2019 Safari3/24/2020105
api.GeolocationPosition πŸ“‹Chrome12/10/2019 Safari3/24/2020105
api.GeolocationPositionError πŸ“‹Chrome12/10/2019 Safari3/24/2020105
api.KeyframeEffect πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.KeyframeEffect.KeyframeEffect πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.KeyframeEffect.target πŸ“‹Firefox10/23/2018 Safari3/24/2020518
api.Navigator.clipboard πŸ“‹Chrome4/17/2018 Safari3/24/2020707
api.RTCDTMFSender πŸ“‹Chrome5/21/2013 Safari3/24/20202499
api.RTCDTMFSender.insertDTMF πŸ“‹Chrome5/21/2013 Safari3/24/20202499
api.RTCDTMFSender.toneBuffer πŸ“‹Chrome5/21/2013 Safari3/24/20202499
api.RTCDTMFSender.tonechange_event πŸ“‹Chrome5/21/2013 Safari3/24/20202499
api.RTCDTMFToneChangeEvent πŸ“‹Chrome5/21/2013 Safari3/24/20202499
api.RTCDTMFToneChangeEvent.RTCDTMFToneChangeEvent πŸ“‹Chrome5/21/2013 Safari3/24/20202499
api.RTCDTMFToneChangeEvent.tone πŸ“‹Chrome5/21/2013 Safari3/24/20202499
api.RTCRtpSender.dtmf πŸ“‹Firefox3/7/2017 Safari3/24/20201113
api.RTCStatsReport.type_candidate-pair.id πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_candidate-pair.timestamp πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_candidate-pair.type πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_inbound-rtp.bytesReceived πŸ“‹Firefox2/4/2014 Safari3/24/20202240
api.RTCStatsReport.type_inbound-rtp.id πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_inbound-rtp.jitter πŸ“‹Firefox2/4/2014 Safari3/24/20202240
api.RTCStatsReport.type_inbound-rtp.packetsLost πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_inbound-rtp.packetsReceived πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_inbound-rtp.timestamp πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_inbound-rtp.type πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_local-candidate.id πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_local-candidate.timestamp πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_local-candidate.type πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_outbound-rtp.bytesSent πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_outbound-rtp.id πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_outbound-rtp.packetsSent πŸ“‹Firefox2/4/2014 Safari3/24/20202240
api.RTCStatsReport.type_outbound-rtp.timestamp πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_outbound-rtp.type πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_remote-candidate.id πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_remote-candidate.timestamp πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.RTCStatsReport.type_remote-candidate.type πŸ“‹Firefox1/7/2020 Safari3/24/202077
api.ResizeObserver πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.ResizeObserver.ResizeObserver πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.ResizeObserver.disconnect πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.ResizeObserver.observe πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.ResizeObserver.unobserve πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.ResizeObserverEntry πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.ResizeObserverEntry.contentRect πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.ResizeObserverEntry.target πŸ“‹Chrome1/23/2018 Safari3/24/2020791
api.SVGLengthList.length πŸ“‹Firefox6/21/2011 Safari3/24/20203199
api.SVGNumberList.length πŸ“‹Firefox6/21/2011 Safari3/24/20203199
api.SVGPointList.length πŸ“‹Firefox6/21/2011 Safari3/24/20203199
api.SVGStringList.length πŸ“‹Firefox4/24/2012 Safari3/24/20202891
api.SVGTransformList.length πŸ“‹Firefox12/20/2011 Safari3/24/20203017
css.properties.background-position.bottom πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.background-position.center πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.background-position.left πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.background-position.right πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.background-position.top πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.border-collapse.collapse Firefox1/7/2020 Safari3/24/202077
css.properties.border-collapse.separate Firefox1/7/2020 Safari3/24/202077
css.properties.break-after.auto Firefox1/7/2020 Safari3/24/202077
css.properties.break-after.avoid Firefox1/7/2020 Safari3/24/202077
css.properties.break-after.left Firefox1/7/2020 Safari3/24/202077
css.properties.break-after.page Firefox1/7/2020 Safari3/24/202077
css.properties.break-after.right Firefox1/7/2020 Safari3/24/202077
css.properties.break-before.auto Firefox1/7/2020 Safari3/24/202077
css.properties.break-before.avoid Firefox1/7/2020 Safari3/24/202077
css.properties.break-before.left Firefox1/7/2020 Safari3/24/202077
css.properties.break-before.page Firefox1/7/2020 Safari3/24/202077
css.properties.break-before.right Firefox1/7/2020 Safari3/24/202077
css.properties.break-inside.auto Firefox1/7/2020 Safari3/24/202077
css.properties.break-inside.avoid Firefox1/7/2020 Safari3/24/202077
css.properties.caption-side.bottom Firefox1/7/2020 Safari3/24/202077
css.properties.caption-side.top Firefox1/7/2020 Safari3/24/202077
css.properties.clip.auto Firefox1/7/2020 Safari3/24/202077
css.properties.color-interpolation πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.color-interpolation.sRGB Firefox1/7/2020 Safari3/24/202077
css.properties.cx πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.cy πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.display.table-caption Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline.alphabetic πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline.auto πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline.central πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline.hanging πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline.ideographic πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline.mathematical πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.dominant-baseline.middle πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.fill πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.fill-opacity πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.fill-rule πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.fill-rule.evenodd πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.fill-rule.nonzero πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.font-optical-sizing πŸ“‹Firefox9/5/2018 Safari3/24/2020566
css.properties.font-optical-sizing.auto πŸ“‹Firefox9/5/2018 Safari3/24/2020566
css.properties.font-optical-sizing.none πŸ“‹Firefox9/5/2018 Safari3/24/2020566
css.properties.marker πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.marker-end πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.marker-mid πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.marker-start πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.opacity.percentages Chrome10/22/2019 Safari3/24/2020154
css.properties.overflow.multiple_keywords Firefox6/26/2018 Safari3/24/2020637
css.properties.r πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.scroll-snap-type.block πŸ“‹Chrome9/4/2018 Safari3/24/2020567
css.properties.scroll-snap-type.both πŸ“‹Chrome9/4/2018 Safari3/24/2020567
css.properties.scroll-snap-type.inline πŸ“‹Chrome9/4/2018 Safari3/24/2020567
css.properties.scroll-snap-type.none πŸ“‹Firefox7/2/2015 Safari3/24/20201727
css.properties.scroll-snap-type.x πŸ“‹Chrome9/4/2018 Safari3/24/2020567
css.properties.scroll-snap-type.y πŸ“‹Chrome9/4/2018 Safari3/24/2020567
css.properties.shape-rendering πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stop-color πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stop-opacity πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-dasharray πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.stroke-dasharray.none πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-dashoffset πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.stroke-linecap πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.stroke-linecap.butt πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-linecap.round πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-linecap.square πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-linejoin πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.stroke-linejoin.bevel πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-linejoin.miter πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-linejoin.round πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.stroke-miterlimit πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.stroke-opacity πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.stroke-width πŸ“‹Firefox11/9/2004 Safari3/24/20205614
css.properties.tab-size.length πŸ“‹Chrome4/14/2015 Safari3/24/20201806
css.properties.text-anchor πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.transform-box.fill-box πŸ“‹Firefox8/8/2017 Safari3/24/2020959
css.properties.transform-box.view-box πŸ“‹Firefox8/8/2017 Safari3/24/2020959
css.properties.vector-effect πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.white-space.break-spaces πŸ“‹Chrome7/30/2019 Safari3/24/2020238
css.properties.x πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.properties.y πŸ“‹Firefox1/7/2020 Safari3/24/202077
css.selectors.part πŸ“‹Chrome3/12/2019 Safari3/24/2020378
css.types.basic-shape.path πŸ“‹Chrome7/20/2016 Safari3/24/20201343
css.types.length.Q Firefox9/20/2016 Safari3/24/20201281
html.elements.link.rel.prefetch πŸ“‹Firefox10/24/2006 Safari3/24/20204900
html.elements.rtc πŸ“‹Firefox10/14/2014 Safari3/24/20201988
html.global_attributes.exportparts πŸ“‹Chrome3/12/2019 Safari3/24/2020378
html.global_attributes.part πŸ“‹Chrome3/12/2019 Safari3/24/2020378
javascript.grammar.hashbang_comments πŸ“‹Chrome4/23/2019 Safari3/24/2020336
javascript.operators.nullish_coalescing πŸ“‹Firefox1/7/2020 Safari3/24/202077
javascript.operators.optional_chaining πŸ“‹Chrome2/4/2020 Safari3/24/202049
api.HTMLIFrameElement.allow πŸ“‹Chrome7/25/2017 Firefox3/10/2020959
api.TextMetrics.actualBoundingBoxAscent πŸ“‹Safari4/12/2018 Firefox3/10/2020698
api.TextMetrics.actualBoundingBoxDescent πŸ“‹Safari4/12/2018 Firefox3/10/2020698
api.TextMetrics.actualBoundingBoxLeft πŸ“‹Safari4/12/2018 Firefox3/10/2020698
api.TextMetrics.actualBoundingBoxRight πŸ“‹Safari4/12/2018 Firefox3/10/2020698
css.properties.text-underline-position πŸ“‹Chrome2/20/2014 Firefox3/10/20202210
css.properties.text-underline-position.under Chrome2/20/2014 Firefox3/10/20202210
html.elements.audio.crossorigin πŸ“‹Chrome2/20/2014 Firefox3/10/20202210
html.elements.iframe.allow πŸ“‹Chrome7/25/2017 Firefox3/10/2020959
html.elements.iframe.allow.camera πŸ“‹Chrome1/23/2018 Firefox3/10/2020777
html.elements.iframe.allow.microphone πŸ“‹Chrome1/23/2018 Firefox3/10/2020777
html.elements.video.crossorigin πŸ“‹Chrome2/20/2014 Firefox3/10/20202210

2020/2

API First Browser Date Last Browser Date Days
api.HTMLVideoElement.getVideoPlaybackQuality πŸ“‹Safari10/16/2014 Chrome2/4/20201937
api.RTCStatsReport.type_inbound-rtp.ssrc πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_local-candidate πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_local-candidate.candidateType πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_local-candidate.port πŸ“‹Safari3/25/2019 Chrome2/4/2020316
api.RTCStatsReport.type_local-candidate.priority πŸ“‹Safari3/25/2019 Chrome2/4/2020316
api.RTCStatsReport.type_local-candidate.protocol πŸ“‹Firefox12/11/2018 Chrome2/4/2020420
api.RTCStatsReport.type_local-candidate.transportId πŸ“‹Firefox7/22/2014 Chrome2/4/20202023
api.RTCStatsReport.type_outbound-rtp πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_outbound-rtp.ssrc πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-candidate πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-candidate.candidateType πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-candidate.port πŸ“‹Safari3/25/2019 Chrome2/4/2020316
api.RTCStatsReport.type_remote-candidate.priority πŸ“‹Safari3/25/2019 Chrome2/4/2020316
api.RTCStatsReport.type_remote-candidate.protocol πŸ“‹Firefox12/11/2018 Chrome2/4/2020420
api.RTCStatsReport.type_remote-candidate.transportId πŸ“‹Firefox7/22/2014 Chrome2/4/20202023
api.RTCStatsReport.type_remote-inbound-rtp πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-inbound-rtp.ssrc πŸ“‹Firefox2/4/2014 Chrome2/4/20202191
html.elements.link.sizes πŸ“‹Safari7/25/2012 Chrome2/4/20202750

2020/1

API First Browser Date Last Browser Date Days
api.MediaStream.removetrack_event πŸ“‹Chrome3/26/2013 Firefox1/7/20202478
css.properties.border-image-repeat.repeat πŸ“‹Chrome10/25/2011 Firefox1/7/20202996
css.properties.border-image-repeat.stretch πŸ“‹Chrome10/25/2011 Firefox1/7/20202996
css.properties.flex.none πŸ“‹Chrome7/31/2012 Firefox1/7/20202716
css.properties.flex-direction.column πŸ“‹Chrome7/31/2012 Firefox1/7/20202716
css.properties.flex-direction.row πŸ“‹Chrome7/31/2012 Firefox1/7/20202716
css.properties.letter-spacing.svg_elements Chrome12/11/2008 Firefox1/7/20204044
css.properties.list-style-type.none πŸ“‹Safari6/23/2003 Firefox1/7/20206042
css.properties.transform-origin.bottom πŸ“‹Safari4/29/2005 Firefox1/7/20205366
css.properties.transform-origin.center πŸ“‹Safari4/29/2005 Firefox1/7/20205366
css.properties.transform-origin.left πŸ“‹Safari4/29/2005 Firefox1/7/20205366
css.properties.transform-origin.right πŸ“‹Safari4/29/2005 Firefox1/7/20205366
css.properties.transform-origin.top πŸ“‹Safari4/29/2005 Firefox1/7/20205366
css.properties.word-spacing.svg_elements Chrome12/11/2008 Firefox1/7/20204044

2019/12

API First Browser Date Last Browser Date Days
api.Element.animationend_event πŸ“‹Safari9/30/2015 Chrome12/10/20191532
api.Element.animationiteration_event πŸ“‹Safari9/30/2015 Chrome12/10/20191532
api.Element.animationstart_event πŸ“‹Safari9/30/2015 Chrome12/10/20191532
api.RTCStatsReport.type_inbound-rtp πŸ“‹Firefox2/4/2014 Chrome12/10/20192135
css.properties.column-span πŸ“‹Safari9/30/2015 Firefox12/10/20191532
css.properties.column-span.all πŸ“‹Chrome9/2/2010 Firefox12/10/20193386
css.properties.column-span.none πŸ“‹Chrome9/2/2010 Firefox12/10/20193386
javascript.builtins.Promise.allSettled πŸ“‹Chrome7/30/2019 Firefox12/10/2019133

2019/10

API First Browser Date Last Browser Date Days
api.CanvasRenderingContext2D.getTransform πŸ“‹Safari4/12/2018 Firefox10/22/2019558
api.CanvasRenderingContext2D.setTransform.matrix_parameter Safari4/12/2018 Firefox10/22/2019558
api.Document.all πŸ“‹Safari9/19/2017 Firefox10/22/2019763
api.Document.captureEvents πŸ“‹Safari9/19/2017 Firefox10/22/2019763
api.Document.clear πŸ“‹Safari9/19/2017 Firefox10/22/2019763
api.Document.releaseEvents πŸ“‹Safari9/19/2017 Firefox10/22/2019763
api.MediaElementAudioSourceNode.mediaElement πŸ“‹Chrome10/25/2011 Firefox10/22/20192919
api.MediaStreamAudioSourceNode.mediaStream πŸ“‹Chrome9/25/2012 Firefox10/22/20192583
api.MediaStreamTrack.applyConstraints.groupId_constraint πŸ“‹Chrome6/5/2017 Firefox10/22/2019869
api.PaymentResponse.payerdetailchange_event πŸ“‹Firefox8/8/2017 Chrome10/22/2019805
api.PaymentResponse.retry πŸ“‹Firefox8/8/2017 Chrome10/22/2019805
css.properties.grid-auto-columns πŸ“‹Chrome3/9/2017 Firefox10/22/2019957
css.properties.grid-auto-rows πŸ“‹Chrome3/9/2017 Firefox10/22/2019957
javascript.grammar.numeric_separators πŸ“‹Chrome6/4/2019 Firefox10/22/2019140

2019/9

API First Browser Date Last Browser Date Days
api.AuthenticatorAssertionResponse πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.AuthenticatorAssertionResponse.authenticatorData πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.AuthenticatorAssertionResponse.signature πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.AuthenticatorAssertionResponse.userHandle πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.AuthenticatorAttestationResponse πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.AuthenticatorAttestationResponse.attestationObject πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.AuthenticatorResponse πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.AuthenticatorResponse.clientDataJSON πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.Credential πŸ“‹Chrome5/25/2016 Safari9/19/20191212
api.Credential.id πŸ“‹Chrome5/25/2016 Safari9/19/20191212
api.Credential.type πŸ“‹Chrome5/25/2016 Safari9/19/20191212
api.CredentialsContainer πŸ“‹Chrome5/25/2016 Safari9/19/20191212
api.CredentialsContainer.create πŸ“‹Chrome7/25/2017 Safari9/19/2019786
api.CredentialsContainer.create.publicKey_option πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.create.publicKey_option.attestation πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.create.publicKey_option.attestation.direct πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.create.publicKey_option.attestation.enterprise πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.create.publicKey_option.attestation.indirect πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.create.publicKey_option.attestation.none πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.create.publicKey_option.extensions πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.create.publicKey_option.extensions.appidExclude πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.get πŸ“‹Chrome5/25/2016 Safari9/19/20191212
api.CredentialsContainer.get.publicKey_option πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.get.publicKey_option.extensions πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.get.publicKey_option.extensions.appid πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.CredentialsContainer.store πŸ“‹Chrome5/25/2016 Safari9/19/20191212
api.Element.gotpointercapture_event πŸ“‹Chrome3/9/2017 Safari9/19/2019924
api.Element.hasPointerCapture πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.lostpointercapture_event πŸ“‹Chrome3/9/2017 Safari9/19/2019924
api.Element.pointercancel_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.pointerdown_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.pointerenter_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.pointerleave_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.pointermove_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.pointerout_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.pointerover_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.pointerup_event πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.releasePointerCapture πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.Element.setPointerCapture πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.HTMLFieldSetElement.elements.type_HTMLCollection Firefox3/22/2011 Safari9/19/20193103
api.HTMLObjectElement.contentWindow πŸ“‹Firefox6/25/2013 Safari9/19/20192277
api.MediaCapabilities πŸ“‹Chrome4/17/2018 Safari9/19/2019520
api.MediaCapabilities.decodingInfo πŸ“‹Chrome4/17/2018 Safari9/19/2019520
api.MediaDevices.getDisplayMedia πŸ“‹Chrome1/29/2019 Safari9/19/2019233
api.Navigator.credentials πŸ“‹Chrome5/25/2016 Safari9/19/20191212
api.Navigator.maxTouchPoints πŸ“‹Chrome5/20/2014 Safari9/19/20191948
api.Navigator.mediaCapabilities πŸ“‹Chrome4/17/2018 Safari9/19/2019520
api.PerformanceObserver.supportedEntryTypes_static πŸ“‹Chrome3/12/2019 Safari9/19/2019191
api.PointerEvent πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.PointerEvent πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.height πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.isPrimary πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.pointerId πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.pointerType πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.pressure πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.tangentialPressure πŸ“‹Chrome3/9/2017 Safari9/19/2019924
api.PointerEvent.tiltX πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.tiltY πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PointerEvent.twist πŸ“‹Chrome3/9/2017 Safari9/19/2019924
api.PointerEvent.width πŸ“‹Chrome12/1/2016 Safari9/19/20191022
api.PublicKeyCredential πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.PublicKeyCredential.getClientExtensionResults πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.PublicKeyCredential.isUserVerifyingPlatformAuthenticatorAvailable_static πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.PublicKeyCredential.rawId πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.PublicKeyCredential.response πŸ“‹Firefox5/9/2018 Safari9/19/2019498
api.Window.afterprint_event πŸ“‹Firefox8/16/2011 Safari9/19/20192956
api.Window.beforeprint_event πŸ“‹Firefox8/16/2011 Safari9/19/20192956
api.console.countReset_static πŸ“‹Chrome7/24/2018 Safari9/19/2019422
api.console.timeLog_static πŸ“‹Firefox9/5/2018 Safari9/19/2019379
css.at-rules.media.display-mode πŸ“‹Chrome4/14/2015 Safari9/19/20191619
css.properties.display.flow-root Chrome4/19/2017 Safari9/19/2019883
css.properties.position.sticky πŸ“‹Firefox9/2/2014 Safari9/19/20191843
css.properties.touch-action πŸ“‹Chrome7/16/2014 Safari9/19/20191891
css.properties.touch-action.manipulation Chrome7/16/2014 Safari9/19/20191891
css.properties.touch-action.none Chrome7/16/2014 Safari9/19/20191891
css.properties.touch-action.pan-x Chrome7/16/2014 Safari9/19/20191891
css.properties.touch-action.pan-y Chrome7/16/2014 Safari9/19/20191891
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_hourCycle_parameter Firefox1/23/2018 Safari9/19/2019604
javascript.builtins.Intl.NumberFormat.formatToParts πŸ“‹Chrome1/23/2018 Safari9/19/2019604
javascript.builtins.Intl.PluralRules πŸ“‹Chrome12/6/2017 Safari9/19/2019652
javascript.builtins.Intl.PluralRules.PluralRules πŸ“‹Chrome12/6/2017 Safari9/19/2019652
javascript.builtins.Intl.PluralRules.resolvedOptions πŸ“‹Chrome12/6/2017 Safari9/19/2019652
javascript.builtins.Intl.PluralRules.select πŸ“‹Chrome12/6/2017 Safari9/19/2019652
javascript.builtins.Intl.PluralRules.supportedLocalesOf πŸ“‹Chrome12/6/2017 Safari9/19/2019652
javascript.builtins.RegExp.@@matchAll πŸ“‹Chrome3/12/2019 Safari9/19/2019191
javascript.builtins.String.matchAll πŸ“‹Chrome3/12/2019 Safari9/19/2019191
javascript.builtins.Symbol.matchAll πŸ“‹Chrome3/12/2019 Safari9/19/2019191
api.DOMMatrix.fromFloat32Array_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrix.fromFloat64Array_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrix.fromMatrix_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrix.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.fromFloat32Array_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.fromFloat64Array_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.fromMatrix_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMPoint.worker_support Safari3/27/2017 Firefox9/3/2019890
api.DOMPointReadOnly.matrixTransform πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMPointReadOnly.worker_support Safari3/27/2017 Firefox9/3/2019890
api.DOMQuad.fromQuad_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMQuad.fromRect_static πŸ“‹Chrome9/5/2017 Firefox9/3/2019728
api.DOMQuad.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMRect.fromRect_static πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.DOMRect.worker_support Safari3/27/2017 Firefox9/3/2019890
api.DOMRectReadOnly.fromRect_static πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.DOMRectReadOnly.worker_support Safari3/27/2017 Firefox9/3/2019890
api.Document.alinkColor πŸ“‹Safari9/19/2017 Firefox9/3/2019714
api.Document.bgColor πŸ“‹Safari9/19/2017 Firefox9/3/2019714
api.Document.close πŸ“‹Chrome9/1/2015 Firefox9/3/20191463
api.Document.designMode πŸ“‹Chrome7/16/2014 Firefox9/3/20191875
api.Document.domain πŸ“‹Safari6/23/2003 Firefox9/3/20195916
api.Document.execCommand Safari4/15/2005 Firefox9/3/20195254
api.Document.fgColor πŸ“‹Safari9/19/2017 Firefox9/3/2019714
api.Document.linkColor πŸ“‹Safari9/19/2017 Firefox9/3/2019714
api.Document.open πŸ“‹Chrome9/1/2015 Firefox9/3/20191463
api.Document.queryCommandEnabled Safari4/29/2005 Firefox9/3/20195240
api.Document.queryCommandIndeterm Safari4/29/2005 Firefox9/3/20195240
api.Document.queryCommandState Safari4/29/2005 Firefox9/3/20195240
api.Document.queryCommandSupported Safari4/29/2005 Firefox9/3/20195240
api.Document.queryCommandValue Safari4/29/2005 Firefox9/3/20195240
api.Document.vlinkColor πŸ“‹Safari9/19/2017 Firefox9/3/2019714
api.Document.write πŸ“‹Chrome9/1/2015 Firefox9/3/20191463
api.Document.writeln πŸ“‹Chrome9/1/2015 Firefox9/3/20191463
api.Navigator.mediaDevices.secure_context_required Safari9/19/2017 Firefox9/3/2019714
api.PromiseRejectionEvent πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.PromiseRejectionEvent.PromiseRejectionEvent πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.PromiseRejectionEvent.promise πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.PromiseRejectionEvent.reason πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.SVGGeometryElement.isPointInFill πŸ“‹Chrome2/20/2014 Firefox9/3/20192021
api.SVGGeometryElement.isPointInStroke πŸ“‹Chrome2/20/2014 Firefox9/3/20192021
api.StaticRange πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.StaticRange.collapsed πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.StaticRange.endContainer πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.StaticRange.endOffset πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.StaticRange.startContainer πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.StaticRange.startOffset πŸ“‹Safari3/27/2017 Firefox9/3/2019890
api.Window.rejectionhandled_event πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.Window.unhandledrejection_event πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.WorkerGlobalScope.rejectionhandled_event πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.WorkerGlobalScope.unhandledrejection_event πŸ“‹Chrome3/2/2016 Firefox9/3/20191280
api.queueMicrotask πŸ“‹Chrome12/4/2018 Firefox9/3/2019273
css.properties.line-break πŸ“‹Chrome4/19/2017 Firefox9/3/2019867
css.properties.line-break.auto πŸ“‹Chrome2/21/2013 Firefox9/3/20192385
css.properties.line-break.loose πŸ“‹Chrome2/21/2013 Firefox9/3/20192385
css.properties.line-break.normal πŸ“‹Safari4/29/2005 Firefox9/3/20195240
css.properties.line-break.strict πŸ“‹Chrome2/21/2013 Firefox9/3/20192385
css.properties.user-select πŸ“‹Safari10/26/2007 Firefox9/3/20194330

2019/7

API First Browser Date Last Browser Date Days
api.PaymentMethodChangeEvent πŸ“‹Firefox8/8/2017 Chrome7/30/2019721
api.PaymentMethodChangeEvent.PaymentMethodChangeEvent πŸ“‹Firefox8/8/2017 Chrome7/30/2019721
api.PaymentMethodChangeEvent.methodDetails πŸ“‹Firefox8/8/2017 Chrome7/30/2019721
api.PaymentMethodChangeEvent.methodName πŸ“‹Firefox8/8/2017 Chrome7/30/2019721
api.PaymentRequest.paymentmethodchange_event πŸ“‹Firefox8/8/2017 Chrome7/30/2019721
css.at-rules.media.prefers-color-scheme πŸ“‹Safari3/25/2019 Chrome7/30/2019127
api.CSSStyleSheet.addRule πŸ“‹Safari6/23/2003 Firefox7/9/20195860
api.CSSStyleSheet.removeRule πŸ“‹Safari10/26/2007 Firefox7/9/20194274
api.CSSStyleSheet.rules πŸ“‹Safari6/23/2003 Firefox7/9/20195860
api.Document.cookie πŸ“‹Chrome12/11/2008 Firefox7/9/20193862
api.HTMLImageElement.decode πŸ“‹Chrome1/23/2018 Firefox7/9/2019532
api.HTMLTrackElement.cuechange_event πŸ“‹Chrome1/14/2014 Firefox7/9/20192002
api.MediaDevices.getUserMedia.secure_context_required Chrome8/31/2016 Firefox7/9/20191042
api.RTCDataChannel.negotiated πŸ“‹Chrome10/1/2013 Firefox7/9/20192107
api.RTCRtpReceiver.getContributingSources.video_tracks_supported Chrome3/12/2019 Firefox7/9/2019119
api.RTCRtpReceiver.getSynchronizationSources.video_tracks_supported Chrome3/12/2019 Firefox7/9/2019119
css.properties.scroll-padding.auto πŸ“‹Safari9/19/2017 Firefox7/9/2019658
css.properties.scroll-snap-align πŸ“‹Safari9/19/2017 Firefox7/9/2019658
css.properties.scroll-snap-align.center πŸ“‹Safari9/19/2017 Firefox7/9/2019658
css.properties.scroll-snap-align.end πŸ“‹Safari9/19/2017 Firefox7/9/2019658
css.properties.scroll-snap-align.none πŸ“‹Safari9/19/2017 Firefox7/9/2019658
css.properties.scroll-snap-align.start πŸ“‹Safari9/19/2017 Firefox7/9/2019658

2019/6

API First Browser Date Last Browser Date Days
api.HTMLCanvasElement.getContext.webgl_context.options_powerPreference_parameter πŸ“‹Safari3/27/2017 Chrome6/4/2019799

2019/5

API First Browser Date Last Browser Date Days
api.InputEvent.data πŸ“‹Safari3/27/2017 Firefox5/21/2019785
api.InputEvent.dataTransfer πŸ“‹Safari3/27/2017 Firefox5/21/2019785
css.properties.word-break.break-word πŸ“‹Safari10/26/2007 Firefox5/21/20194225
javascript.operators.import πŸ“‹Chrome12/6/2017 Firefox5/21/2019531

2019/4

API First Browser Date Last Browser Date Days
api.RTCRtpSender.setParameters.parameters_encodings_parameter.scaleResolutionDownBy πŸ“‹Firefox4/26/2016 Chrome4/23/20191092
api.ServiceWorkerContainer.startMessages πŸ“‹Safari4/12/2018 Chrome4/23/2019376
css.at-rules.media.prefers-reduced-motion πŸ“‹Safari3/27/2017 Chrome4/23/2019757

2019/3

API First Browser Date Last Browser Date Days
api.AbortController πŸ“‹Firefox11/14/2017 Safari3/25/2019496
api.AbortController.AbortController πŸ“‹Firefox11/14/2017 Safari3/25/2019496
api.AbortController.abort πŸ“‹Firefox11/14/2017 Safari3/25/2019496
api.AbortController.signal πŸ“‹Firefox11/14/2017 Safari3/25/2019496
api.CustomElementRegistry.upgrade πŸ“‹Chrome7/24/2018 Safari3/25/2019244
api.DedicatedWorkerGlobalScope.name πŸ“‹Firefox8/8/2017 Safari3/25/2019594
api.HTMLDataListElement πŸ“‹Firefox3/22/2011 Safari3/25/20192925
api.HTMLDataListElement.options πŸ“‹Firefox3/22/2011 Safari3/25/20192925
api.HTMLInputElement.list πŸ“‹Firefox3/22/2011 Safari3/25/20192925
api.HTMLMediaElement.encrypted_event πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.HTMLMediaElement.mediaKeys πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.HTMLMediaElement.setMediaKeys πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.HTMLSlotElement.assignedElements πŸ“‹Chrome3/6/2018 Safari3/25/2019384
api.IntersectionObserver πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserver.IntersectionObserver πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserver.disconnect πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserver.observe πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserver.root πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserver.rootMargin πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserver.takeRecords πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserver.thresholds πŸ“‹Chrome7/20/2016 Safari3/25/2019978
api.IntersectionObserver.unobserve πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserverEntry πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserverEntry.boundingClientRect πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserverEntry.intersectionRatio πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserverEntry.intersectionRect πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserverEntry.isIntersecting πŸ“‹Chrome4/19/2017 Safari3/25/2019705
api.IntersectionObserverEntry.rootBounds πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserverEntry.target πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.IntersectionObserverEntry.time πŸ“‹Chrome5/25/2016 Safari3/25/20191034
api.MediaEncryptedEvent πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaEncryptedEvent.MediaEncryptedEvent πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaEncryptedEvent.initData πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaEncryptedEvent.initDataType πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyMessageEvent πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyMessageEvent.MediaKeyMessageEvent πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyMessageEvent.message πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyMessageEvent.messageType πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.close πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.closed πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.expiration πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.generateRequest πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.keyStatuses πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.keystatuseschange_event πŸ“‹Chrome12/1/2016 Safari3/25/2019844
api.MediaKeySession.load πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.message_event πŸ“‹Chrome12/1/2016 Safari3/25/2019844
api.MediaKeySession.remove πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.sessionId πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySession.update πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.@@iterator Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.entries Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.forEach Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.get πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.has πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.keys Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.size πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeyStatusMap.values Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySystemAccess πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySystemAccess.createMediaKeys πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySystemAccess.getConfiguration πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeySystemAccess.keySystem πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeys πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeys.createSession πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MediaKeys.setServerCertificate πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.MouseEvent.getModifierState πŸ“‹Firefox8/28/2012 Safari3/25/20192400
api.Navigator.requestMediaKeySystemAccess πŸ“‹Chrome4/14/2015 Safari3/25/20191441
api.RTCCertificate πŸ“‹Firefox11/3/2015 Safari3/25/20191238
api.RTCCertificate.expires πŸ“‹Firefox11/3/2015 Safari3/25/20191238
api.RTCPeerConnection.RTCPeerConnection.configuration_certificates_parameter πŸ“‹Firefox11/3/2015 Safari3/25/20191238
api.RTCPeerConnection.addTransceiver.init_streams_parameter Firefox3/13/2018 Safari3/25/2019377
api.RTCPeerConnection.generateCertificate_static πŸ“‹Firefox6/25/2013 Safari3/25/20192099
api.RTCRtpReceiver.getContributingSources πŸ“‹Chrome6/5/2017 Safari3/25/2019658
api.RTCRtpReceiver.getContributingSources.audioLevel πŸ“‹Firefox3/13/2018 Safari3/25/2019377
api.RTCRtpReceiver.getContributingSources.audio_tracks_supported Chrome6/5/2017 Safari3/25/2019658
api.RTCRtpReceiver.getContributingSources.source πŸ“‹Chrome6/5/2017 Safari3/25/2019658
api.RTCRtpReceiver.getContributingSources.timestamp πŸ“‹Chrome6/5/2017 Safari3/25/2019658
api.RTCRtpReceiver.getStats πŸ“‹Firefox8/8/2017 Safari3/25/2019594
api.RTCRtpReceiver.getSynchronizationSources πŸ“‹Firefox3/13/2018 Safari3/25/2019377
api.RTCRtpReceiver.getSynchronizationSources.audio_tracks_supported Firefox3/13/2018 Safari3/25/2019377
api.RTCRtpSender.getParameters.return_object_property_encodings πŸ“‹Firefox4/26/2016 Safari3/25/20191063
api.RTCRtpSender.getStats πŸ“‹Firefox8/8/2017 Safari3/25/2019594
api.RTCRtpSender.setParameters.parameters_headerExtensions_parameter πŸ“‹Firefox4/26/2016 Safari3/25/20191063
api.RTCRtpTransceiver.currentDirection πŸ“‹Firefox3/13/2018 Safari3/25/2019377
api.Request.credentials.default_same-origin Firefox6/26/2018 Safari3/25/2019272
api.Request.signal πŸ“‹Firefox11/14/2017 Safari3/25/2019496
api.ShadowRoot.styleSheets πŸ“‹Chrome8/31/2016 Safari3/25/2019936
api.SourceBuffer.changeType πŸ“‹Chrome10/16/2018 Safari3/25/2019160
api.Worker.Worker.options_name_parameter Firefox8/8/2017 Safari3/25/2019594
css.properties.block-size πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.block-size.max-content Chrome3/9/2017 Safari3/25/2019746
css.properties.block-size.min-content Chrome3/9/2017 Safari3/25/2019746
css.properties.border-block-end πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-block-end-color πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-block-end-style πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-block-end-width πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-block-start πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-block-start-color πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-block-start-style πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-block-start-width πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-end πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-end-color πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-end-style πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-end-width πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-start πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-start-color πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-start-style πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.border-inline-start-width πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.column-gap.multicol_context.calc_values Chrome4/17/2018 Safari3/25/2019342
css.properties.gap.grid_context.calc_values Firefox3/7/2017 Safari3/25/2019748
css.properties.inline-size πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.inline-size.max-content Chrome3/9/2017 Safari3/25/2019746
css.properties.inline-size.min-content Chrome3/9/2017 Safari3/25/2019746
css.properties.margin-block-end πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.margin-block-start πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.margin-inline-end πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.margin-inline-start πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.max-block-size πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.max-block-size.max-content Chrome3/9/2017 Safari3/25/2019746
css.properties.max-block-size.min-content Chrome3/9/2017 Safari3/25/2019746
css.properties.max-inline-size πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.max-inline-size.max-content Chrome3/9/2017 Safari3/25/2019746
css.properties.max-inline-size.min-content Chrome3/9/2017 Safari3/25/2019746
css.properties.min-block-size πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.min-block-size.max-content Chrome3/9/2017 Safari3/25/2019746
css.properties.min-block-size.min-content Chrome3/9/2017 Safari3/25/2019746
css.properties.min-inline-size πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.min-inline-size.max-content Chrome3/9/2017 Safari3/25/2019746
css.properties.min-inline-size.min-content Chrome3/9/2017 Safari3/25/2019746
css.properties.padding-block-end πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.padding-block-start πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.padding-inline-end πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.padding-inline-start πŸ“‹Firefox9/22/2015 Safari3/25/20191280
css.properties.text-decoration-color πŸ“‹Firefox2/24/2015 Safari3/25/20191490
css.properties.text-decoration-line πŸ“‹Firefox2/24/2015 Safari3/25/20191490
css.properties.text-decoration-style πŸ“‹Firefox2/24/2015 Safari3/25/20191490
css.types.color.hsl.alpha_parameter Firefox3/7/2017 Safari3/25/2019748
css.types.color.hsl.space_separated_parameters Firefox3/7/2017 Safari3/25/2019748
css.types.color.rgb.alpha_parameter Firefox3/7/2017 Safari3/25/2019748
css.types.color.rgb.float_values Firefox3/7/2017 Safari3/25/2019748
css.types.color.rgb.space_separated_parameters Firefox3/7/2017 Safari3/25/2019748
css.types.gradient.linear-gradient.doubleposition Chrome12/4/2018 Safari3/25/2019111
css.types.gradient.radial-gradient.doubleposition Chrome12/4/2018 Safari3/25/2019111
css.types.gradient.repeating-linear-gradient.doubleposition Chrome12/4/2018 Safari3/25/2019111
css.types.gradient.repeating-radial-gradient.doubleposition Chrome12/4/2018 Safari3/25/2019111
html.elements.input.list πŸ“‹Firefox3/22/2011 Safari3/25/20192925
html.elements.input.type_color πŸ“‹Chrome6/26/2012 Safari3/25/20192463
javascript.builtins.JSON.stringify.well_formed_stringify Firefox12/11/2018 Safari3/25/2019104
javascript.builtins.Object.fromEntries πŸ“‹Firefox10/23/2018 Safari3/25/2019153
javascript.builtins.Symbol.description πŸ“‹Chrome10/16/2018 Safari3/25/2019160
javascript.builtins.globalThis πŸ“‹Chrome12/4/2018 Safari3/25/2019111
api.Event.returnValue πŸ“‹Safari6/23/2003 Firefox3/19/20195748
api.InputEvent.inputType πŸ“‹Safari3/27/2017 Firefox3/19/2019722
api.Window.event πŸ“‹Safari10/24/2003 Firefox3/19/20195625
css.properties.height.max-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
css.properties.height.min-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-height.max-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-height.min-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-width.max-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-width.min-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
css.properties.min-height.max-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.min-height.min-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.min-width.max-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.min-width.min-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.width.max-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
css.properties.width.min-content πŸ“‹Chrome10/13/2015 Firefox3/19/20191253
javascript.builtins.RegExp.source.escaping Safari7/25/2012 Chrome3/12/20192421
javascript.builtins.RegExp.toString.escaping Safari7/25/2012 Chrome3/12/20192421

2019/1

API First Browser Date Last Browser Date Days
api.ByteLengthQueuingStrategy πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ByteLengthQueuingStrategy.ByteLengthQueuingStrategy πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ByteLengthQueuingStrategy.highWaterMark πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ByteLengthQueuingStrategy.size πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.CountQueuingStrategy πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.CountQueuingStrategy.CountQueuingStrategy πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.CountQueuingStrategy.highWaterMark πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.CountQueuingStrategy.size πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.HTMLMarqueeElement πŸ“‹Safari2/2/2004 Firefox1/29/20195475
api.HTMLMarqueeElement.behavior πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.bgColor πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.direction πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.height πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.hspace πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.loop πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.scrollAmount πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.scrollDelay πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.start πŸ“‹Safari2/2/2004 Firefox1/29/20195475
api.HTMLMarqueeElement.stop πŸ“‹Safari2/2/2004 Firefox1/29/20195475
api.HTMLMarqueeElement.trueSpeed πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.vspace πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.width πŸ“‹Chrome3/8/2011 Firefox1/29/20192884
api.ReadableStream πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStream.ReadableStream πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStream.cancel πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStream.getReader πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStream.locked πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStream.tee πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController.close πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController.desiredSize πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController.enqueue πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController.error πŸ“‹Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultReader πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStreamDefaultReader.cancel πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStreamDefaultReader.closed πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStreamDefaultReader.read πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStreamDefaultReader.releaseLock πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.Response.body πŸ“‹Chrome5/19/2015 Firefox1/29/20191351
api.Window.open.once_per_event Chrome11/6/2012 Firefox1/29/20192275
css.properties.break-after πŸ“‹Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-after.paged_context πŸ“‹Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-after.paged_context.page Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-before πŸ“‹Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-before.paged_context πŸ“‹Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-before.paged_context.page Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-inside πŸ“‹Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-inside.multicol_context πŸ“‹Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-inside.paged_context πŸ“‹Chrome4/13/2016 Firefox1/29/20191021
css.properties.custom-property.env πŸ“‹Safari4/12/2018 Firefox1/29/2019292
css.properties.custom-property.env.safe-area-inset-bottom πŸ“‹Safari9/19/2017 Firefox1/29/2019497
css.properties.custom-property.env.safe-area-inset-left πŸ“‹Safari9/19/2017 Firefox1/29/2019497
css.properties.custom-property.env.safe-area-inset-right πŸ“‹Safari9/19/2017 Firefox1/29/2019497
css.properties.custom-property.env.safe-area-inset-top πŸ“‹Safari9/19/2017 Firefox1/29/2019497
css.properties.image-rendering.crisp-edges πŸ“‹Chrome8/2/2011 Firefox1/29/20192737
html.elements.marquee πŸ“‹Safari2/2/2004 Firefox1/29/20195475

2018/12

API First Browser Date Last Browser Date Days
api.RTCRtpSender.setParameters πŸ“‹Safari9/19/2017 Firefox12/11/2018448
api.Window.screenLeft πŸ“‹Safari6/23/2003 Firefox12/11/20185650
api.Window.screenTop πŸ“‹Safari6/23/2003 Firefox12/11/20185650
api.XMLHttpRequest.getAllResponseHeaders.header_names_lowercase Chrome7/25/2017 Firefox12/11/2018504
css.at-rules.media.any-hover πŸ“‹Chrome3/3/2015 Firefox12/11/20181379
css.at-rules.media.any-pointer πŸ“‹Chrome3/3/2015 Firefox12/11/20181379
css.at-rules.media.hover πŸ“‹Chrome10/7/2014 Firefox12/11/20181526
css.at-rules.media.pointer πŸ“‹Chrome3/3/2015 Firefox12/11/20181379
api.URL.toJSON πŸ“‹Firefox6/13/2017 Chrome12/4/2018539

2018/10

API First Browser Date Last Browser Date Days
api.CustomElementRegistry πŸ“‹Chrome10/12/2016 Firefox10/23/2018741
api.CustomElementRegistry.define πŸ“‹Chrome10/12/2016 Firefox10/23/2018741
api.CustomElementRegistry.get πŸ“‹Chrome10/12/2016 Firefox10/23/2018741
api.CustomElementRegistry.whenDefined πŸ“‹Chrome10/12/2016 Firefox10/23/2018741
api.Element.assignedSlot πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.Element.attachShadow πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.Element.securitypolicyviolation_event πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.Element.shadowRoot πŸ“‹Chrome5/20/2014 Firefox10/23/20181617
api.Element.slot πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.Element.toggleAttribute πŸ“‹Chrome9/4/2018 Firefox10/23/201849
api.HTMLImageElement.decoding πŸ“‹Chrome3/6/2018 Firefox10/23/2018231
api.HTMLSlotElement πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.HTMLSlotElement.assignedNodes πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.HTMLSlotElement.name πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.HTMLSlotElement.slotchange_event πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.SecurityPolicyViolationEvent πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.SecurityPolicyViolationEvent πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.blockedURI πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.columnNumber πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.documentURI πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.effectiveDirective πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.lineNumber πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.originalPolicy πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.referrer πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.sourceFile πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.statusCode πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.violatedDirective πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
api.ShadowRoot πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.activeElement πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.elementFromPoint Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.elementsFromPoint Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.host πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.innerHTML πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.mode πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.pointerLockElement πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.Text.assignedSlot πŸ“‹Chrome8/31/2016 Firefox10/23/2018783
api.TextDecoder.ignoreBOM πŸ“‹Chrome10/7/2014 Firefox10/23/20181477
api.Window.customElements πŸ“‹Chrome10/12/2016 Firefox10/23/2018741
api.WorkerGlobalScope.securitypolicyviolation_event πŸ“‹Chrome3/3/2015 Firefox10/23/20181330
css.at-rules.media.-webkit-device-pixel-ratio πŸ“‹Safari10/26/2007 Firefox10/23/20184015
css.at-rules.media.-webkit-max-device-pixel-ratio πŸ“‹Safari10/26/2007 Firefox10/23/20184015
css.at-rules.media.-webkit-min-device-pixel-ratio πŸ“‹Safari10/26/2007 Firefox10/23/20184015
css.properties.content.element_replacement Chrome7/9/2013 Firefox10/23/20181932
css.selectors.defined πŸ“‹Safari9/20/2016 Firefox10/23/2018763
css.selectors.host πŸ“‹Safari9/20/2016 Firefox10/23/2018763
css.selectors.hostfunction πŸ“‹</