Now Stable

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

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Example Comparisons
Browsers
Features

Stable APIs

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

2026/3

API First Browser Date Last Browser Date Days Notes
api.ShadowRoot.referenceTarget Chrome2/4/2025 Firefox3/24/2026413
api.Element.setHTML 📋Firefox2/24/2026 Chrome3/10/202614
Chrome: Chrome 105 to Chrome 118 (inclusive) supported this method with a significantly different specification.Chrome Android: Chrome Android 105 to Chrome Android 118 (inclusive) supported this method with a significantly different specification.Edge: Edge 105 to Edge 118 (inclusive) supported this method with a significantly different specification.WebView Android: WebView Android 105 to WebView Android 118 (inclusive) supported this method with a significantly different specification.
api.NavigationPrecommitController.addHandler 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer 📋Firefox2/24/2026 Chrome3/10/202614
Chrome: Chrome 105 to Chrome 118 (inclusive) supported this interface name with a significantly different specification.Chrome Android: Chrome Android 105 to Chrome Android 118 (inclusive) supported this interface name with a significantly different specification.Edge: Edge 105 to Edge 118 (inclusive) supported this interface name with a significantly different specification.WebView Android: WebView Android 105 to WebView Android 118 (inclusive) supported this interface name with a significantly different specification.
api.Sanitizer.Sanitizer 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.allowAttribute 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.allowElement 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.get 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.removeAttribute 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.removeElement 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.removeUnsafe 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.replaceElementWithChildren 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.setComments 📋Firefox2/24/2026 Chrome3/10/202614
api.Sanitizer.setDataAttributes 📋Firefox2/24/2026 Chrome3/10/202614

2026/2

API First Browser Date Last Browser Date Days Notes
api.Document.execCommand.paste Chrome4/14/2015 Firefox2/24/20263969
Firefox: Supported in content scripts (not just extensions) via the Clipboard APIFirefox for Android: Supported in content scripts (not just extensions) via the Clipboard API
api.Element.pointerrawupdate_event 📋Chrome9/10/2019 Firefox2/24/20262359
Chrome: Before version 142, pointerrawupdate events were exposed to non-secure contexts.Chrome Android: Before version 142, pointerrawupdate events were exposed to non-secure contexts.Edge: Before version 142, pointerrawupdate events were exposed to non-secure contexts.Firefox: The pointerrawupdate event handler receives a MouseEvent whose movement properties (movementX, movementY) are always 0. See bug 1987671.Firefox for Android: The pointerrawupdate event handler receives a MouseEvent whose movement properties (movementX, movementY) are always 0. See bug 1987671.Quest Browser: Before version false, pointerrawupdate events were exposed to non-secure contexts.Opera: Before version 126, pointerrawupdate events were exposed to non-secure contexts.Opera Android: Before version 93, pointerrawupdate events were exposed to non-secure contexts.Samsung Internet: Before version false, pointerrawupdate events were exposed to non-secure contexts.WebView Android: Before version 142, pointerrawupdate events were exposed to non-secure contexts.
api.Location.ancestorOrigins 📋Chrome6/26/2012 Firefox2/24/20264991
Deno: This value is always empty in Deno.
api.TrustedHTML 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedHTML.toJSON 📋Chrome4/13/2021 Firefox2/24/20261778
api.TrustedHTML.toString 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedScript 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedScript.toJSON 📋Chrome4/13/2021 Firefox2/24/20261778
api.TrustedScript.toString 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedScriptURL 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedScriptURL.toJSON 📋Chrome4/13/2021 Firefox2/24/20261778
api.TrustedScriptURL.toString 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicy 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicy.createHTML 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicy.createScript 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicy.createScriptURL 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicy.name 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.createPolicy 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.defaultPolicy 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.emptyHTML 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.emptyScript 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.getAttributeType 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.getPropertyType 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.isHTML 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.isScript 📋Chrome5/19/2020 Firefox2/24/20262107
api.TrustedTypePolicyFactory.isScriptURL 📋Chrome5/19/2020 Firefox2/24/20262107
api.trustedTypes 📋Chrome5/19/2020 Firefox2/24/20262107
api.HTMLElement.focus.options_focusVisible_parameter Firefox8/23/2022 Chrome2/10/20261267
api.LargestContentfulPaint.paintTime 📋Firefox6/24/2025 Chrome2/10/2026231
api.LargestContentfulPaint.presentationTime 📋Firefox6/24/2025 Chrome2/10/2026231
Firefox: This property is exposed, but always returns null.Firefox for Android: This property is exposed, but always returns null.Safari: This property is exposed, but always returns null.Safari on iOS: This property is exposed, but always returns null.WebView on iOS: This property is exposed, but always returns null.
api.PerformancePaintTiming.paintTime 📋Firefox6/24/2025 Chrome2/10/2026231
api.PerformancePaintTiming.presentationTime 📋Firefox6/24/2025 Chrome2/10/2026231

2026/1

API First Browser Date Last Browser Date Days Notes
api.Blob.bytes 📋Firefox7/9/2024 Chrome1/13/2026553
api.CSSPositionTryDescriptors 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.align-self 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.alignSelf 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.block-size 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.blockSize 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.bottom 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.height 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inline-size 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inlineSize 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inset 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inset-block 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inset-block-end 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inset-block-start 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inset-inline 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inset-inline-end 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.inset-inline-start 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.insetBlock 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.insetBlockEnd 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.insetBlockStart 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.insetInline 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.insetInlineEnd 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.insetInlineStart 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.justify-self 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.justifySelf 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.left 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-block 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-block-end 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-block-start 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-bottom 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-inline 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-inline-end 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-inline-start 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-left 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-right 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.margin-top 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginBlock 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginBlockEnd 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginBlockStart 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginBottom 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginInline 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginInlineEnd 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginInlineStart 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginLeft 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginRight 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.marginTop 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.max-block-size 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.max-height 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.max-inline-size 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.max-width 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.maxBlockSize 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.maxHeight 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.maxInlineSize 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.maxWidth 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.min-block-size 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.min-height 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.min-inline-size 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.min-width 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.minBlockSize 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.minHeight 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.minInlineSize 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.minWidth 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.place-self 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.placeSelf 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.position-anchor 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.position-area 📋Chrome9/17/2024 Firefox1/13/2026483
api.CSSPositionTryDescriptors.positionAnchor 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.positionArea 📋Chrome9/17/2024 Firefox1/13/2026483
api.CSSPositionTryDescriptors.right 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.top 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryDescriptors.width 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryRule 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryRule.name 📋Chrome5/14/2024 Firefox1/13/2026609
api.CSSPositionTryRule.style 📋Chrome5/14/2024 Firefox1/13/2026609
api.Document.activeViewTransition 📋Chrome10/28/2025 Firefox1/13/202677
api.Document.startViewTransition.options_parameter 📋Chrome5/14/2024 Firefox1/13/2026609
api.Document.startViewTransition.options_parameter.types_parameter 📋Chrome5/14/2024 Firefox1/13/2026609
api.Document.startViewTransition.options_parameter.update_parameter 📋Chrome5/14/2024 Firefox1/13/2026609
api.HTMLButtonElement.commandForElement.implicit_anchor_reference 📋Chrome4/1/2025 Firefox1/13/2026287
api.HTMLButtonElement.popoverTargetElement.implicit_anchor_reference 📋Chrome2/4/2025 Firefox1/13/2026343
api.HTMLElement.showPopover.options_source_parameter.implicit_anchor_reference 📋Chrome2/4/2025 Firefox1/13/2026343
api.HTMLElement.togglePopover.options_source_parameter.implicit_anchor_reference 📋Chrome2/4/2025 Firefox1/13/2026343
api.HTMLInputElement.popoverTargetElement.implicit_anchor_reference 📋Chrome2/4/2025 Firefox1/13/2026343
api.NavigateEvent 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.NavigateEvent 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.canIntercept 📋Chrome9/2/2022 Firefox1/13/20261229
api.NavigateEvent.destination 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.downloadRequest 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.formData 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.hasUAVisualTransition 📋Chrome10/10/2023 Firefox1/13/2026826
api.NavigateEvent.hashChange 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.info 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.intercept 📋Chrome9/2/2022 Firefox1/13/20261229
api.NavigateEvent.intercept.precommitHandler_option 📋Chrome9/30/2025 Firefox1/13/2026105
api.NavigateEvent.navigationType 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.scroll 📋Chrome9/2/2022 Firefox1/13/20261229
api.NavigateEvent.signal 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigateEvent.sourceElement 📋Chrome4/1/2025 Firefox1/13/2026287
api.NavigateEvent.userInitiated 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.activation 📋Chrome3/19/2024 Firefox1/13/2026665
api.Navigation.back 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.canGoBack 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.canGoForward 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.currentEntry 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.currententrychange_event 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.entries 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.forward 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.navigate 📋Chrome5/24/2022 Firefox1/13/20261330
Chrome: Chrome allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).Chrome Android: Chrome Android allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).Edge: Edge allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).Quest Browser: Quest Browser allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).Opera: Opera allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).Opera Android: Opera Android allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).Samsung Internet: Samsung Internet allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).WebView Android: WebView Android allows javascript: URLs when calling navigate(), contrary to the specification (bug 439994590).
api.Navigation.navigate_event 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.navigateerror_event 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.navigatesuccess_event 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.reload 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.transition 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.traverseTo 📋Chrome5/24/2022 Firefox1/13/20261330
api.Navigation.updateCurrentEntry 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationActivation 📋Chrome3/19/2024 Firefox1/13/2026665
api.NavigationActivation.entry 📋Chrome3/19/2024 Firefox1/13/2026665
api.NavigationActivation.from 📋Chrome3/19/2024 Firefox1/13/2026665
api.NavigationActivation.navigationType 📋Chrome3/19/2024 Firefox1/13/2026665
api.NavigationCurrentEntryChangeEvent 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationCurrentEntryChangeEvent.NavigationCurrentEntryChangeEvent 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationCurrentEntryChangeEvent.from 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationCurrentEntryChangeEvent.navigationType 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationDestination 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationDestination.getState 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationDestination.id 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationDestination.index 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationDestination.key 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationDestination.sameDocument 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationDestination.url 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry.dispose_event 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry.getState 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry.id 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry.index 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry.key 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry.sameDocument 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationHistoryEntry.url 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationPrecommitController 📋Chrome9/30/2025 Firefox1/13/2026105
api.NavigationPrecommitController.redirect 📋Chrome9/30/2025 Firefox1/13/2026105
api.NavigationTransition 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationTransition.committed 📋Chrome9/30/2025 Firefox1/13/2026105
api.NavigationTransition.finished 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationTransition.from 📋Chrome5/24/2022 Firefox1/13/20261330
api.NavigationTransition.navigationType 📋Chrome5/24/2022 Firefox1/13/20261330
api.Performance.interactionCount 📋Firefox10/14/2025 Chrome1/13/202691
api.SVGAElement.hreflang 📋Firefox6/26/2018 Chrome1/13/20262758
api.SVGAElement.ping 📋Firefox6/26/2018 Chrome1/13/20262758
Firefox: This property is exposed but has no effect if the browser.send_pings preference is not set to true. See bug 951104.Firefox for Android: This property is exposed but has no effect if the browser.send_pings preference is not set to true. See bug 951104.
api.SVGAElement.referrerPolicy 📋Firefox6/26/2018 Chrome1/13/20262758
api.SVGAElement.type 📋Firefox6/26/2018 Chrome1/13/20262758
api.ServiceWorker.ecmascript_modules Chrome5/25/2021 Firefox1/13/20261694
Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.
api.ViewTransition.types 📋Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet 📋Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.@@iterator Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.add Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.clear Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.delete Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.entries Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.forEach Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.has Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.keys Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.size Chrome5/14/2024 Firefox1/13/2026609
api.ViewTransitionTypeSet.values Chrome5/14/2024 Firefox1/13/2026609
api.Window.navigation 📋Chrome5/24/2022 Firefox1/13/20261330

2025/12

API First Browser Date Last Browser Date Days Notes
api.CSSScopeRule 📋Chrome10/10/2023 Firefox12/9/2025791
api.CSSScopeRule.end 📋Chrome10/10/2023 Firefox12/9/2025791
api.CSSScopeRule.start 📋Chrome10/10/2023 Firefox12/9/2025791
api.SubtleCrypto.importKey.ECDH.compressed_elliptic_curve_points 📋Chrome2/4/2020 Firefox12/9/20252135
api.SubtleCrypto.importKey.ECDSA.compressed_elliptic_curve_points 📋Chrome2/4/2020 Firefox12/9/20252135
api.Window.gamepadconnected_event 📋Firefox6/1/2021 Chrome12/2/20251645
Chrome: The ongamepadconnected event handler property is not supported. See bug 40175074.Chrome Android: The ongamepadconnected event handler property is not supported. See bug 40175074.Edge: The ongamepadconnected event handler property is not supported. See bug 40175074.Firefox: The ongamepadconnected event handler property is not supported. See bug 1697093.Firefox for Android: The ongamepadconnected event handler property is not supported. See bug 1697093.Quest Browser: The ongamepadconnected event handler property is not supported. See bug 40175074.Opera: The ongamepadconnected event handler property is not supported. See bug 40175074.Opera Android: The ongamepadconnected event handler property is not supported. See bug 40175074.Safari: The ongamepadconnected event handler property is not supported. See bug 223860.Safari on iOS: The ongamepadconnected event handler property is not supported. See bug 223860.Samsung Internet: The ongamepadconnected event handler property is not supported. See bug 40175074.WebView Android: The ongamepadconnected event handler property is not supported. See bug 40175074.WebView on iOS: The ongamepadconnected event handler property is not supported. See bug 223860.
api.Window.gamepaddisconnected_event 📋Firefox6/1/2021 Chrome12/2/20251645
Chrome: The ongamepaddisconnected event handler property is not supported. See bug 40175074.Chrome Android: The ongamepaddisconnected event handler property is not supported. See bug 40175074.Edge: The ongamepaddisconnected event handler property is not supported. See bug 40175074.Firefox: The ongamepaddisconnected event handler property is not supported. See bug 1697093.Firefox for Android: The ongamepaddisconnected event handler property is not supported. See bug 1697093.Quest Browser: The ongamepaddisconnected event handler property is not supported. See bug 40175074.Opera: The ongamepaddisconnected event handler property is not supported. See bug 40175074.Opera Android: The ongamepaddisconnected event handler property is not supported. See bug 40175074.Safari: The ongamepaddisconnected event handler property is not supported. See bug 223860.Safari on iOS: The ongamepaddisconnected event handler property is not supported. See bug 223860.Samsung Internet: The ongamepaddisconnected event handler property is not supported. See bug 40175074.WebView Android: The ongamepaddisconnected event handler property is not supported. See bug 40175074.WebView on iOS: The ongamepaddisconnected event handler property is not supported. See bug 223860.

2025/11

API First Browser Date Last Browser Date Days Notes
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_contributingSources_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_payloadType_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_rtpTimestamp_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_sequenceNumber_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.RTCEncodedAudioFrame.options_metadata_synchronizationSource_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_contributingSources 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_payloadType 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_rtpTimestamp 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_sequenceNumber 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedAudioFrame.getMetadata.return_object_property_synchronizationSource 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_contributingSources_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_dependencies_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_frameId_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_height_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_payloadType_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_spatialIndex_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_synchronizationSource_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_temporalIndex_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.RTCEncodedVideoFrame.options_metadata_width_parameter 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_contributingSources 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_dependencies 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_frameId 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_height 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_payloadType 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_spatialIndex 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_synchronizationSource 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_temporalIndex 📋Chrome7/23/2024 Firefox11/11/2025476
api.RTCEncodedVideoFrame.getMetadata.return_object_property_width 📋Chrome7/23/2024 Firefox11/11/2025476
api.ToggleEvent.source 📋Chrome9/2/2025 Firefox11/11/202570

2025/10

API First Browser Date Last Browser Date Days Notes
api.SVGAElement.download 📋Firefox4/2/2013 Chrome10/28/20254592
api.SVGScriptElement.async Firefox8/29/2023 Chrome10/28/2025791
api.CommandEvent 📋Chrome4/1/2025 Firefox10/14/2025196
api.CommandEvent.CommandEvent Chrome4/1/2025 Firefox10/14/2025196
api.CommandEvent.command 📋Chrome4/1/2025 Firefox10/14/2025196
api.CommandEvent.source 📋Chrome4/1/2025 Firefox10/14/2025196
api.CustomElementRegistry.define.connectedMoveCallback_lifecycle_callback 📋Chrome2/4/2025 Firefox10/14/2025252
api.Document.moveBefore 📋Chrome2/4/2025 Firefox10/14/2025252
api.Document.startViewTransition 📋Chrome3/7/2023 Firefox10/14/2025952
api.DocumentFragment.moveBefore 📋Chrome2/4/2025 Firefox10/14/2025252
api.Element.moveBefore 📋Chrome2/4/2025 Firefox10/14/2025252
api.GPUDevice.importExternalTexture 📋Chrome5/2/2023 Firefox10/14/2025896
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.importExternalTexture.videoframe_source Chrome8/15/2023 Firefox10/14/2025791
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.HTMLButtonElement.command 📋Chrome4/1/2025 Firefox10/14/2025196
api.HTMLButtonElement.command.request-close 📋Chrome8/5/2025 Firefox10/14/202570
api.HTMLButtonElement.commandForElement 📋Chrome4/1/2025 Firefox10/14/2025196
api.HTMLElement.command_event 📋Chrome4/1/2025 Firefox10/14/2025196
api.HTMLElement.showPopover.options_source_parameter 📋Chrome5/27/2025 Firefox10/14/2025140
Chrome: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Chrome Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Edge: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Firefox: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Firefox for Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Opera: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Opera Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Safari: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Safari on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Samsung Internet: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.
api.HTMLElement.togglePopover.options_source_parameter 📋Chrome5/27/2025 Firefox10/14/2025140
Chrome: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Chrome Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Edge: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Firefox: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Firefox for Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 1984004.Opera: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Opera Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.Safari: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Safari on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.Samsung Internet: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView Android: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 383343310.WebView on iOS: When using this option, the focus order doesn't change, so the popover does not become the next focus element. See bug 286575.
api.MediaDevices.getSupportedConstraints.return_object_property_resizeMode 📋Chrome1/29/2019 Firefox10/14/20252450
api.MediaDevices.getUserMedia.constraints_resizeMode_parameter 📋Chrome1/29/2019 Firefox10/14/20252450
api.PerformanceEventTiming.interactionId 📋Chrome11/15/2021 Firefox10/14/20251429
api.RTCDataChannel.closing_event 📋Chrome4/7/2020 Firefox10/14/20252016
api.RTCDataChannel.transferable 📋Chrome10/15/2024 Firefox10/14/2025364
api.ScreenOrientation.lock 📋Chrome10/7/2014 Firefox10/14/20254025
Chrome: Always throws NotSupportedError.Edge: Always throws NotSupportedError.Firefox: Always throws NotSupportedError.Firefox for Android: The API exists but returns NS_ERROR_UNEXPECTED.Opera: Always throws NotSupportedError.
api.ScreenOrientation.unlock 📋Chrome10/7/2014 Firefox10/14/20254025
Chrome: Always throws NotSupportedError.Edge: Always throws NotSupportedError.Firefox: Always throws NotSupportedError.Firefox for Android: The API exists but returns NS_ERROR_UNEXPECTED.Opera: Always throws NotSupportedError.
api.ViewTransition 📋Chrome3/7/2023 Firefox10/14/2025952
api.ViewTransition.finished 📋Chrome3/7/2023 Firefox10/14/2025952
api.ViewTransition.ready 📋Chrome3/7/2023 Firefox10/14/2025952
api.ViewTransition.skipTransition 📋Chrome3/7/2023 Firefox10/14/2025952
api.ViewTransition.updateCallbackDone 📋Chrome3/7/2023 Firefox10/14/2025952

2025/9

API First Browser Date Last Browser Date Days Notes
api.DedicatedWorkerGlobalScope.rtctransform_event 📋Firefox8/29/2023 Chrome9/30/2025763
api.Document.requestStorageAccess.strict_same_origin_policy 📋Firefox6/24/2025 Chrome9/30/202598
api.RTCRtpReceiver.transform 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpScriptTransform 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpScriptTransform.RTCRtpScriptTransform 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpScriptTransformer 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpScriptTransformer.options 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpScriptTransformer.readable 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpScriptTransformer.sendKeyFrameRequest 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpScriptTransformer.writable 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCRtpSender.transform 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCTransformEvent 📋Firefox8/29/2023 Chrome9/30/2025763
api.RTCTransformEvent.transformer 📋Firefox8/29/2023 Chrome9/30/2025763
api.SpeechRecognition.abort 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.audioend_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.audiostart_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.continuous 📋Chrome2/20/2014 Firefox9/16/20254226
Chrome Android: The property can be set, but has no effect.Quest Browser: The property can be set, but has no effect.Opera Android: The property can be set, but has no effect.Samsung Internet: The property can be set, but has no effect.WebView Android: The property can be set, but has no effect.
api.SpeechRecognition.end_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.error_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.grammars 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.interimResults 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.lang 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.maxAlternatives 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.nomatch_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.result_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.soundend_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.soundstart_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.speechend_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.speechstart_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.start 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.start_event 📋Chrome2/20/2014 Firefox9/16/20254226
api.SpeechRecognition.stop 📋Chrome2/20/2014 Firefox9/16/20254226
api.FontFace.featureSettings 📋Firefox9/22/2015 Chrome9/2/20253633
Chrome: The property can be set, but has no effect. See bug 324519293Chrome Android: The property can be set, but has no effect. See bug 324519293Edge: The property can be set, but has no effect. See bug 324519293Quest Browser: The property can be set, but has no effect. See bug 324519293Opera: The property can be set, but has no effect. See bug 324519293Opera Android: The property can be set, but has no effect. See bug 324519293WebView Android: The property can be set, but has no effect. See bug 324519293
api.FontFace.variationSettings 📋Firefox9/5/2018 Chrome9/2/20252554
api.ReadableStreamBYOBReader.read.options_min_parameter 📋Firefox1/7/2025 Chrome9/2/2025238

2025/8

API First Browser Date Last Browser Date Days Notes
api.Animation.overallProgress 📋Chrome2/4/2025 Firefox8/19/2025196
api.RTCRtpSender.setParameters.parameters_encodings_parameter.codec Chrome10/31/2023 Firefox8/19/2025658
api.RTCStatsReport.type_candidate-pair.currentRoundTripTime 📋Chrome12/4/2018 Firefox8/19/20252450
api.RTCStatsReport.type_candidate-pair.responsesReceived 📋Chrome4/19/2017 Firefox8/19/20253044
api.RTCStatsReport.type_candidate-pair.totalRoundTripTime 📋Chrome12/4/2018 Firefox8/19/20252450
api.RTCStatsReport.type_inbound-rtp.jitterBufferMinimumDelay 📋Chrome9/2/2022 Firefox8/19/20251082
api.RTCStatsReport.type_inbound-rtp.jitterBufferTargetDelay 📋Chrome9/2/2022 Firefox8/19/20251082
api.RTCStatsReport.type_inbound-rtp.keyFramesDecoded 📋Chrome12/10/2019 Firefox8/19/20252079
api.Scheduler 📋Chrome9/21/2021 Firefox8/19/20251428
api.Scheduler.postTask 📋Chrome9/21/2021 Firefox8/19/20251428
api.Scheduler.yield 📋Chrome9/17/2024 Firefox8/19/2025336
api.Selection.collapse.accepts_nodes_in_shadow_trees Chrome5/27/2025 Firefox8/19/202584
api.Selection.extend.accepts_nodes_in_shadow_trees Chrome5/27/2025 Firefox8/19/202584
api.Selection.getComposedRanges 📋Chrome5/27/2025 Firefox8/19/202584
api.Selection.setBaseAndExtent.accepts_nodes_in_shadow_trees Chrome5/27/2025 Firefox8/19/202584
api.SpeechGrammar 📋Chrome2/21/2013 Firefox8/19/20254562
api.SpeechGrammar.SpeechGrammar Chrome2/21/2013 Firefox8/19/20254562
api.SpeechGrammar.src 📋Chrome2/21/2013 Firefox8/19/20254562
api.SpeechGrammar.weight 📋Chrome2/21/2013 Firefox8/19/20254562
api.SpeechGrammarList 📋Chrome8/5/2025 Firefox8/19/202514
api.SpeechGrammarList.SpeechGrammarList 📋Chrome8/5/2025 Firefox8/19/202514
api.SpeechGrammarList.addFromString 📋Chrome2/20/2014 Firefox8/19/20254198
api.SpeechGrammarList.addFromURI 📋Chrome2/20/2014 Firefox8/19/20254198
api.SpeechGrammarList.item 📋Chrome2/20/2014 Firefox8/19/20254198
api.SpeechGrammarList.length 📋Chrome2/20/2014 Firefox8/19/20254198
api.SpeechRecognition 📋Chrome8/5/2025 Firefox8/19/202514
Chrome: You'll need to serve your code through a web server for recognition to work.Chrome Android: You'll need to serve your code through a web server for recognition to work.Edge: You'll need to serve your code through a web server for recognition to work.Quest Browser: You'll need to serve your code through a web server for recognition to work.Opera: You'll need to serve your code through a web server for recognition to work.Opera Android: You'll need to serve your code through a web server for recognition to work.Samsung Internet: You'll need to serve your code through a web server for recognition to work.WebView Android: You'll need to serve your code through a web server for recognition to work.
api.SpeechRecognition.SpeechRecognition 📋Chrome8/5/2025 Firefox8/19/202514
api.TaskController 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskController.TaskController 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskController.setPriority 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskPriorityChangeEvent 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskPriorityChangeEvent.TaskPriorityChangeEvent 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskPriorityChangeEvent.previousPriority 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskSignal 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskSignal.any_static 📋Chrome8/15/2023 Firefox8/19/2025735
api.TaskSignal.priority 📋Chrome9/21/2021 Firefox8/19/20251428
api.TaskSignal.prioritychange_event 📋Chrome9/21/2021 Firefox8/19/20251428
api.URLPattern 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.URLPattern 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.URLPattern.ignoreCase_option 📋Chrome10/25/2022 Firefox8/19/20251029
api.URLPattern.exec 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.hasRegExpGroups 📋Chrome2/20/2024 Firefox8/19/2025546
api.URLPattern.hash 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.hostname 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.password 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.pathname 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.port 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.protocol 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.search 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.test 📋Chrome10/19/2021 Firefox8/19/20251400
api.URLPattern.username 📋Chrome10/19/2021 Firefox8/19/20251400
api.scheduler 📋Chrome9/21/2021 Firefox8/19/20251428
api.GPUSupportedFeatures.feature_core-features-and-limits 📋Firefox7/22/2025 Chrome8/5/202514
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome: Available on all adapters and enabled automatically on all devices even if not requested.Chrome Android: Available on all adapters and enabled automatically on all devices even if not requested.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Edge: Available on all adapters and enabled automatically on all devices even if not requested.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera: Available on all adapters and enabled automatically on all devices even if not requested.Opera Android: Available on all adapters and enabled automatically on all devices even if not requested.WebView Android: Available on all adapters and enabled automatically on all devices even if not requested.
api.GPUSupportedFeatures.feature_texture-compression-astc-sliced-3d 📋Firefox7/22/2025 Chrome8/5/202514
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUSupportedFeatures.feature_texture-compression-bc-sliced-3d 📋Firefox7/22/2025 Chrome8/5/202514
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.

2025/7

API First Browser Date Last Browser Date Days Notes
api.GPU 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPU.getPreferredCanvasFormat 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPU.requestAdapter 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPU.wgslLanguageFeatures 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter.features 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter.info 📋Chrome7/23/2024 Firefox7/22/2025364
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.Samsung Internet: Supported on ChromeOS, macOS, and Windows.Samsung Internet: Supported on Linux (Intel Gen12+ GPUs only) since Samsung Internet false.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUAdapter.limits 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapter.requestDevice 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.architecture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.description 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.device 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUAdapterInfo.isFallbackAdapter 📋Chrome4/29/2025 Firefox7/22/202584
Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.
api.GPUAdapterInfo.subgroupMaxSize 📋Chrome3/4/2025 Firefox7/22/2025140
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.Samsung Internet: Supported on ChromeOS, macOS, and Windows.Samsung Internet: Supported on Linux (Intel Gen12+ GPUs only) since Samsung Internet false.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUAdapterInfo.subgroupMinSize 📋Chrome3/4/2025 Firefox7/22/2025140
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.Samsung Internet: Supported on ChromeOS, macOS, and Windows.Samsung Internet: Supported on Linux (Intel Gen12+ GPUs only) since Samsung Internet false.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUAdapterInfo.vendor 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroup.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroupLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBindGroupLayout.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.destroy 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.getMappedRange 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.mapAsync 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.mapState 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.size 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.unmap 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUBuffer.usage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext.canvas 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext.configure 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome: The rgba8unorm format is currently not supported on macOS. See bug 40823053.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Edge: The rgba8unorm format is currently not supported on macOS. See bug 40823053.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera: The rgba8unorm format is currently not supported on macOS. See bug 40823053.
api.GPUCanvasContext.getConfiguration 📋Chrome11/12/2024 Firefox7/22/2025252
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.Samsung Internet: Supported on ChromeOS, macOS, and Windows.Samsung Internet: Supported on Linux (Intel Gen12+ GPUs only) since Samsung Internet false.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUCanvasContext.getCurrentTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCanvasContext.unconfigure 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandBuffer.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.beginComputePass 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.beginRenderPass 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.clearBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyBufferToBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyBufferToTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyTextureToBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.copyTextureToTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.finish 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.insertDebugMarker 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.popDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.pushDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCommandEncoder.resolveQuerySet 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationInfo 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationInfo.messages 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.length 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.lineNum 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.linePos 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.message 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.offset 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUCompilationMessage.type 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.dispatchWorkgroups 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.dispatchWorkgroupsIndirect 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.end 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.insertDebugMarker 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.popDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.pushDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.setBindGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePassEncoder.setPipeline 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePipeline 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePipeline.getBindGroupLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUComputePipeline.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.adapterInfo 📋Chrome1/14/2025 Firefox7/22/2025189
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome Android: Supported on ChromeOS, macOS, and Windows.Chrome Android: Supported on Linux (Intel Gen12+ GPUs only) since Chrome Android 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera Android: Supported on ChromeOS, macOS, and Windows.Opera Android: Supported on Linux (Intel Gen12+ GPUs only) since Opera Android 95.Samsung Internet: Supported on ChromeOS, macOS, and Windows.Samsung Internet: Supported on Linux (Intel Gen12+ GPUs only) since Samsung Internet false.WebView Android: Supported on ChromeOS, macOS, and Windows.WebView Android: Supported on Linux (Intel Gen12+ GPUs only) since WebView Android 144.
api.GPUDevice.createBindGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createBindGroupLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Chrome: Before version 138, this method does not throw a RangeError exception when mappedAtCreation is true but size is not a multiple of 4; it generates a validation error instead.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Edge: Before version 138, this method does not throw a RangeError exception when mappedAtCreation is true but size is not a multiple of 4; it generates a validation error instead.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.Opera: Before version 122, this method does not throw a RangeError exception when mappedAtCreation is true but size is not a multiple of 4; it generates a validation error instead.
api.GPUDevice.createCommandEncoder 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createComputePipeline 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createComputePipelineAsync 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createPipelineLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createQuerySet 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createRenderBundleEncoder 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createRenderPipeline 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createRenderPipelineAsync 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createSampler 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createShaderModule 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.createTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.destroy 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.features 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.limits 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.lost 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.popErrorScope 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.pushErrorScope 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.queue 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDevice.uncapturederror_event 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDeviceLostInfo 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDeviceLostInfo.message 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUDeviceLostInfo.reason 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUError.message 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUExternalTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUExternalTexture.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUInternalError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUInternalError.GPUInternalError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUOutOfMemoryError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUOutOfMemoryError.GPUOutOfMemoryError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError.GPUPipelineError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError.GPUPipelineError.message_optional Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineError.reason 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUPipelineLayout.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.count 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.destroy 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQuerySet.type 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.copyExternalImageToTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.onSubmittedWorkDone 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.submit 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.writeBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUQueue.writeTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundle 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundle.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.draw 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.drawIndexed 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.drawIndexedIndirect 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.drawIndirect 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.finish 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.insertDebugMarker 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.popDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.pushDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setBindGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setIndexBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setPipeline 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderBundleEncoder.setVertexBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.beginOcclusionQuery 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.draw 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.drawIndexed 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.drawIndexedIndirect 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.drawIndirect 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.end 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.endOcclusionQuery 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.executeBundles 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.insertDebugMarker 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.popDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.pushDebugGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setBindGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setBlendConstant 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setIndexBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setPipeline 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setScissorRect 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setStencilReference 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setVertexBuffer 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPassEncoder.setViewport 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPipeline 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPipeline.getBindGroupLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPURenderPipeline.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSampler 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSampler.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUShaderModule 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUShaderModule.getCompilationInfo 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUShaderModule.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.@@iterator 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.entries 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.forEach 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.has 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.keys 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.size 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedFeatures.values 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxBindGroups 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxBindGroupsPlusVertexBuffers 📋Chrome12/5/2023 Firefox7/22/2025595
Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.
api.GPUSupportedLimits.maxBindingsPerBindGroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxBufferSize 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxColorAttachmentBytesPerSample 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxColorAttachments 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeInvocationsPerWorkgroup 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupSizeX 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupSizeY 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupSizeZ 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupStorageSize 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxComputeWorkgroupsPerDimension 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxDynamicStorageBuffersPerPipelineLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxDynamicUniformBuffersPerPipelineLayout 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxInterStageShaderVariables 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxSampledTexturesPerShaderStage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxSamplersPerShaderStage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxStorageBufferBindingSize 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxStorageBuffersPerShaderStage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxStorageTexturesPerShaderStage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureArrayLayers 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureDimension1D 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureDimension2D 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxTextureDimension3D 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxUniformBufferBindingSize 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxUniformBuffersPerShaderStage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxVertexAttributes 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxVertexBufferArrayStride 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.maxVertexBuffers 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.minStorageBufferOffsetAlignment 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUSupportedLimits.minUniformBufferOffsetAlignment 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.createView 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.depthOrArrayLayers 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.destroy 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.dimension 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.format 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.height 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.mipLevelCount 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.sampleCount 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.usage 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTexture.width 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTextureView 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUTextureView.label 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUUncapturedErrorEvent 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUUncapturedErrorEvent.GPUUncapturedErrorEvent 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUUncapturedErrorEvent.error 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUValidationError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.GPUValidationError.GPUValidationError 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.HTMLCanvasElement.getContext.webgpu_context 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.HTMLDialogElement.closedBy 📋Chrome3/4/2025 Firefox7/22/2025140
api.HTMLElement.togglePopover.force_parameter 📋Chrome8/15/2023 Firefox7/22/2025707
api.HTMLElement.togglePopover.options_force_parameter 📋Chrome10/15/2024 Firefox7/22/2025280
api.IntersectionObserver.scrollMargin Chrome12/5/2023 Firefox7/22/2025595
api.LargestContentfulPaint.renderTime.cross-origin Chrome2/4/2025 Firefox7/22/2025168
api.Navigator.gpu 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.OffscreenCanvas.getContext.webgpu_context 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supported on Windows only, in all contexts except for service workers.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.PointerEvent.persistentDeviceId 📋Chrome8/20/2024 Firefox7/22/2025336
api.WGSLLanguageFeatures 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.@@iterator 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.entries 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.forEach 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.has 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.keys 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.size 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WGSLLanguageFeatures.values 📋Chrome7/18/2023 Firefox7/22/2025735
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.
api.WorkerNavigator.gpu 📋Chrome5/2/2023 Firefox7/22/2025812
Chrome: Supported on ChromeOS, macOS, and Windows.Chrome: Supported on Linux (Intel Gen12+ GPUs only) since Chrome 144.Edge: Supported on ChromeOS, macOS, and Windows.Edge: Supported on Linux (Intel Gen12+ GPUs only) since Edge 144.Firefox: Supports all contexts except service workers. See bug 1942431.Firefox: Supports Windows since Firefox 141. See bug 1972486.Firefox: Supports macOS Tahoe on Apple silicon since Firefox 145. See bug 1992212.Firefox: Supports older macOS versions on Apple silicon since Firefox 147. See bug 1993341.Firefox: Does not support macOS on Intel CPUs. See bug 2004105.Firefox: Does not support Linux. See bug 2006676.Firefox for Android: Supports all contexts except service workers. See bug 1942431.Firefox for Android: Supports Windows since Firefox for Android 141. See bug 1972486.Firefox for Android: Supports macOS Tahoe on Apple silicon since Firefox for Android 145. See bug 1992212.Firefox for Android: Supports older macOS versions on Apple silicon since Firefox for Android 147. See bug 1993341.Firefox for Android: Does not support macOS on Intel CPUs. See bug 2004105.Firefox for Android: Does not support Linux. See bug 2006676.Opera: Supported on ChromeOS, macOS, and Windows.Opera: Supported on Linux (Intel Gen12+ GPUs only) since Opera false.

2025/6

API First Browser Date Last Browser Date Days Notes
api.CSS.highlights_static 📋Chrome9/2/2022 Firefox6/24/20251026
api.CookieChangeEvent 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieChangeEvent.CookieChangeEvent 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieChangeEvent.changed 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieChangeEvent.deleted 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.change_event 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.delete 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.delete.partitioned_option 📋Chrome5/30/2023 Firefox6/24/2025756
api.CookieStore.get 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.get.name_return_property 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.get.value_return_property 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.getAll 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.set 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStore.set.partitioned_option 📋Chrome5/30/2023 Firefox6/24/2025756
api.CookieStoreManager 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStoreManager.getSubscriptions 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStoreManager.subscribe 📋Chrome11/17/2020 Firefox6/24/20251680
api.CookieStoreManager.unsubscribe 📋Chrome11/17/2020 Firefox6/24/20251680
api.Element.getHTML.escapes_lt_gt_in_attributes Chrome6/24/2025 Firefox6/24/2025
api.Element.innerHTML.escapes_lt_gt_in_attributes Chrome6/24/2025 Firefox6/24/2025
api.Element.outerHTML.escapes_lt_gt_in_attributes Chrome6/24/2025 Firefox6/24/2025
api.ExtendableCookieChangeEvent 📋Chrome11/17/2020 Firefox6/24/20251680
api.ExtendableCookieChangeEvent.ExtendableCookieChangeEvent 📋Chrome11/17/2020 Firefox6/24/20251680
api.ExtendableCookieChangeEvent.changed 📋Chrome11/17/2020 Firefox6/24/20251680
api.ExtendableCookieChangeEvent.deleted 📋Chrome11/17/2020 Firefox6/24/20251680
api.Highlight 📋Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.@@iterator Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.Highlight 📋Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.add Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.clear Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.delete Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.entries Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.forEach Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.has Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.keys Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.priority 📋Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.size Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.type 📋Chrome9/2/2022 Firefox6/24/20251026
api.Highlight.values Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry 📋Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.@@iterator Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.clear Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.delete Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.entries Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.forEach Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.get Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.has Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.keys Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.set Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.size Chrome9/2/2022 Firefox6/24/20251026
api.HighlightRegistry.values Chrome9/2/2022 Firefox6/24/20251026
api.PushSubscriptionChangeEvent 📋Firefox4/1/2025 Chrome6/24/202584
Firefox: Before Firefox 137, The pushsubscriptionchange event is fired, but does not have the oldSubscription and newSubscription properties. See bug 1635524.Firefox for Android: Before Firefox for Android 137, The pushsubscriptionchange event is fired, but does not have the oldSubscription and newSubscription properties. See bug 1635524.Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionChangeEvent.PushSubscriptionChangeEvent 📋Firefox4/1/2025 Chrome6/24/202584
Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionChangeEvent.newSubscription 📋Firefox4/1/2025 Chrome6/24/202584
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionChangeEvent.oldSubscription 📋Firefox4/1/2025 Chrome6/24/202584
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerGlobalScope.cookieStore 📋Chrome11/17/2020 Firefox6/24/20251680
api.ServiceWorkerGlobalScope.cookiechange_event 📋Chrome11/17/2020 Firefox6/24/20251680
api.ServiceWorkerGlobalScope.pushsubscriptionchange_event 📋Firefox1/26/2016 Chrome6/24/20253437
Firefox: The event does not have the oldSubscription and newSubscription properties. See bug 1497429.Firefox for Android: The event does not have the oldSubscription and newSubscription properties. See bug 1497429.Safari: Notifications are supported on macOS Ventura and later.
api.ServiceWorkerRegistration.cookies 📋Chrome11/17/2020 Firefox6/24/20251680
api.ShadowRoot.getHTML.escapes_lt_gt_in_attributes Chrome6/24/2025 Firefox6/24/2025
api.ShadowRoot.innerHTML.escapes_lt_gt_in_attributes Chrome6/24/2025 Firefox6/24/2025
api.Window.cookieStore 📋Chrome11/17/2020 Firefox6/24/20251680

2025/5

API First Browser Date Last Browser Date Days Notes
api.CredentialsContainer.create.publicKey_option.extensions.credProtect Chrome7/30/2019 Firefox5/27/20252128
api.CredentialsContainer.create.publicKey_option.extensions.largeBlob 📋Chrome5/2/2023 Firefox5/27/2025756
api.CredentialsContainer.create.publicKey_option.extensions.prf 📋Chrome8/15/2023 Firefox5/27/2025651
Firefox: Not supported on macOS.
api.CredentialsContainer.get.publicKey_option.extensions.largeBlob 📋Chrome5/2/2023 Firefox5/27/2025756
api.CredentialsContainer.get.publicKey_option.extensions.prf 📋Chrome8/15/2023 Firefox5/27/2025651
Firefox: Not supported on macOS.
api.Element.beforematch_event 📋Chrome5/24/2022 Firefox5/27/20251099
api.HTMLDialogElement.requestClose 📋Chrome3/4/2025 Firefox5/27/202584
api.KeyboardEvent.repeat 📋Firefox3/18/2014 Chrome5/27/20254088
Chrome: Before Chrome 139, on Linux under X11, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Chrome: On Windows and Linux, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Chrome Android: Before Chrome Android 139, on Linux under X11, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Chrome Android: On Windows and Linux, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Quest Browser: On Windows and Linux, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Opera: Before Opera 123, on Linux under X11, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Opera: On Windows and Linux, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Opera Android: Before Opera Android 91, on Linux under X11, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Opera Android: On Windows and Linux, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.Samsung Internet: On Windows and Linux, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.WebView Android: Before WebView Android 139, on Linux under X11, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.WebView Android: On Windows and Linux, if multiple keys are held down, a keydown event for the most recently pressed key will trigger with repeat incorrectly set to false. See bug 40940886.
api.Selection.direction 📋Firefox5/14/2024 Chrome5/27/2025378
api.SubtleCrypto.exportKey.ed25519 📋Firefox8/6/2024 Chrome5/27/2025294
api.SubtleCrypto.generateKey.ed25519 📋Firefox8/6/2024 Chrome5/27/2025294
api.SubtleCrypto.importKey.ed25519 📋Firefox8/6/2024 Chrome5/27/2025294
api.SubtleCrypto.sign.ed25519 📋Firefox8/6/2024 Chrome5/27/2025294
Safari: Generates randomized signatures as per draft-irtf-cfrg-det-sigs-with-noise, instead of deterministic signatures as per RFC 8032.Safari on iOS: Generates randomized signatures as per draft-irtf-cfrg-det-sigs-with-noise, instead of deterministic signatures as per RFC 8032.WebView on iOS: Generates randomized signatures as per draft-irtf-cfrg-det-sigs-with-noise, instead of deterministic signatures as per RFC 8032.
api.SubtleCrypto.verify.ed25519 📋Firefox8/6/2024 Chrome5/27/2025294

2025/4

API First Browser Date Last Browser Date Days Notes
api.Navigator.login 📋Chrome12/5/2023 Firefox4/29/2025511
api.NavigatorLogin 📋Chrome12/5/2023 Firefox4/29/2025511
api.NavigatorLogin.setStatus 📋Chrome12/5/2023 Firefox4/29/2025511
api.ProgressEvent.ProgressEvent.loaded_total_options_accept_double Chrome4/29/2025 Firefox4/29/2025
api.RTCCertificate.getFingerprints 📋Chrome9/5/2017 Firefox4/29/20252793
api.RTCRtpSender.getParameters.return_object_property_degradationPreference 📋Chrome5/19/2020 Firefox4/29/20251806
api.RTCRtpSender.setParameters.parameters_degradationPreference_parameter 📋Chrome5/19/2020 Firefox4/29/20251806
api.SVGAElement.rel 📋Firefox6/26/2018 Chrome4/29/20252499
api.SVGAElement.relList 📋Firefox6/26/2018 Chrome4/29/20252499
api.SVGGeometryElement.isPointInFill.point_parameter_DOMPoint Firefox9/3/2019 Chrome4/29/20252065
api.SVGGeometryElement.isPointInStroke.point_parameter_DOMPoint Firefox9/3/2019 Chrome4/29/20252065
api.Window.originAgentCluster 📋Chrome4/13/2021 Firefox4/29/20251477
api.Element.ariaActiveDescendantElement 📋Firefox3/4/2025 Chrome4/1/202528
api.Element.ariaControlsElements 📋Firefox3/4/2025 Chrome4/1/202528
api.Element.ariaDescribedByElements 📋Firefox3/4/2025 Chrome4/1/202528
api.Element.ariaDetailsElements 📋Firefox3/4/2025 Chrome4/1/202528
api.Element.ariaErrorMessageElements 📋Firefox3/4/2025 Chrome4/1/202528
api.Element.ariaFlowToElements 📋Firefox3/4/2025 Chrome4/1/202528
api.Element.ariaLabelledByElements 📋Firefox3/4/2025 Chrome4/1/202528
api.ElementInternals.ariaActiveDescendantElement 📋Firefox3/4/2025 Chrome4/1/202528
api.ElementInternals.ariaControlsElements 📋Firefox3/4/2025 Chrome4/1/202528
api.ElementInternals.ariaDescribedByElements 📋Firefox3/4/2025 Chrome4/1/202528
api.ElementInternals.ariaDetailsElements 📋Firefox3/4/2025 Chrome4/1/202528
api.ElementInternals.ariaErrorMessageElements 📋Firefox3/4/2025 Chrome4/1/202528
api.ElementInternals.ariaFlowToElements 📋Firefox3/4/2025 Chrome4/1/202528
api.ElementInternals.ariaLabelledByElements 📋Firefox3/4/2025 Chrome4/1/202528

2025/3

API First Browser Date Last Browser Date Days Notes
api.CSSFontFeatureValuesRule 📋Firefox12/1/2014 Chrome3/4/20253746
Chrome: Not exposed on Window. See bug 385925149.Chrome Android: Not exposed on Window. See bug 385925149.Edge: Not exposed on Window. See bug 385925149.Opera: Not exposed on Window. See bug 385925149.Opera Android: Not exposed on Window. See bug 385925149.Samsung Internet: Not exposed on Window. See bug 385925149.WebView Android: Not exposed on Window. See bug 385925149.
api.HTMLElement.contentEditable.plaintext-only Chrome5/25/2016 Firefox3/4/20253205

2025/2

API First Browser Date Last Browser Date Days Notes
api.ClipboardItem.ClipboardItem 📋Firefox6/11/2024 Chrome2/4/2025238
Chrome: Only accepts a Blob or a Promise resolving to a Blob as the item data.Chrome: Only accepts a Blob as the item data. See bug 40103226.Chrome Android: The ClipboardItem constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.Edge: Only accepts a Blob or a Promise resolving to a Blob as the item data.Edge: Only accepts a Blob as the item data. See bug 40103226.Quest Browser: The ClipboardItem constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.Opera: Only accepts a Blob or a Promise resolving to a Blob as the item data.Opera: Only accepts a Blob as the item data. See bug 40103226.Opera Android: The ClipboardItem constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.Samsung Internet: The ClipboardItem constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.WebView Android: The ClipboardItem constructor only accepts a blob as the item data, but not strings or Promises that resolve to strings or blobs. See bug 40103226.
api.PointerEvent.pointerType.fractional_coordinates Chrome1/23/2018 Firefox2/4/20252569
Chrome: movementX and movementY are not fractional, see bug 41364801.Chrome Android: movementX and movementY are not fractional, see bug 41364801.Edge: movementX and movementY are not fractional, see bug 41364801.Edge: Only clientX, clientY, pageX and pageY are fractional.Internet Explorer: Only clientX, clientY, pageX and pageY are fractional.Quest Browser: movementX and movementY are not fractional, see bug 41364801.Opera: movementX and movementY are not fractional, see bug 41364801.Opera Android: movementX and movementY are not fractional, see bug 41364801.Samsung Internet: movementX and movementY are not fractional, see bug 41364801.WebView Android: movementX and movementY are not fractional, see bug 41364801.
api.PublicKeyCredential.getClientCapabilities_static 📋Chrome2/4/2025 Firefox2/4/2025
api.RTCStatsReport.type_inbound-rtp.mid 📋Chrome9/2/2022 Firefox2/4/2025886
api.RTCStatsReport.type_outbound-rtp.mid 📋Chrome9/2/2022 Firefox2/4/2025886
api.RTCStatsReport.type_outbound-rtp.rid 📋Chrome9/2/2022 Firefox2/4/2025886
api.SubtleCrypto.deriveBits.x25519 📋Firefox9/3/2024 Chrome2/4/2025154
api.SubtleCrypto.deriveKey.x25519 📋Firefox9/3/2024 Chrome2/4/2025154
api.SubtleCrypto.exportKey.x25519 📋Firefox9/3/2024 Chrome2/4/2025154
api.SubtleCrypto.generateKey.x25519 📋Firefox9/3/2024 Chrome2/4/2025154
api.SubtleCrypto.importKey.x25519 📋Firefox9/3/2024 Chrome2/4/2025154

2025/1

API First Browser Date Last Browser Date Days Notes
api.HTMLElement.beforetoggle_event.dialog_elements 📋Firefox11/26/2024 Chrome1/14/202549
api.HTMLElement.toggle_event.dialog_elements 📋Firefox11/26/2024 Chrome1/14/202549
api.IDBRequest.error.transient_unrecoverable_read_errors 📋Firefox7/17/2012 Chrome1/14/20254564
Chrome: Returns a NotReadableError exception for unrecoverable read errors, and an UnknownError for transient read errors.Chrome: Returns a NotFoundError exception for unrecoverable read errors, and a DataError for transient read errors.Chrome Android: Returns a NotReadableError exception for unrecoverable read errors, and an UnknownError for transient read errors.Chrome Android: Returns a NotFoundError exception for unrecoverable read errors, and a DataError for transient read errors.Opera: Returns a NotReadableError exception for unrecoverable read errors, and an UnknownError for transient read errors.Opera: Returns a NotFoundError exception for unrecoverable read errors, and a DataError for transient read errors.Opera Android: Returns a NotReadableError exception for unrecoverable read errors, and an UnknownError for transient read errors.Opera Android: Returns a NotFoundError exception for unrecoverable read errors, and a DataError for transient read errors.Samsung Internet: Returns a NotReadableError exception for unrecoverable read errors, and an UnknownError for transient read errors.Samsung Internet: Returns a NotFoundError exception for unrecoverable read errors, and a DataError for transient read errors.WebView Android: Returns a NotReadableError exception for unrecoverable read errors, and an UnknownError for transient read errors.WebView Android: Returns a NotFoundError exception for unrecoverable read errors, and a DataError for transient read errors.
api.PushMessageData.bytes 📋Firefox7/9/2024 Chrome1/14/2025189
api.Request.bytes 📋Firefox7/9/2024 Chrome1/14/2025189
api.Response.bytes 📋Firefox7/9/2024 Chrome1/14/2025189
api.PushManager.supportedContentEncodings_static 📋Chrome7/25/2017 Firefox1/7/20252723
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.

2024/11

API First Browser Date Last Browser Date Days Notes
api.EventSource.worker_support Chrome9/2/2010 Firefox11/26/20245199
Firefox: Not supported in service workers.Firefox for Android: Not supported in service workers.
api.HTMLMediaElement.waitingforkey_event 📋Chrome12/1/2016 Firefox11/26/20242917
Firefox: The onwaitingforkey event handler property is not supported.Firefox for Android: The onwaitingforkey event handler property is not supported.
api.ImageDecoder 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.ImageDecoder 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.close 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.complete 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.completed 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.decode 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.isTypeSupported_static 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.reset 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.tracks 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageDecoder.type 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrack 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrack.animated 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrack.frameCount 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrack.repetitionCount 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrack.selected 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrackList 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrackList.length 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrackList.ready 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrackList.selectedIndex 📋Chrome9/21/2021 Firefox11/26/20241162
api.ImageTrackList.selectedTrack 📋Chrome9/21/2021 Firefox11/26/20241162
api.Request.Request.init_keepalive_parameter 📋Chrome4/17/2018 Firefox11/26/20242415
api.Request.keepalive 📋Chrome4/17/2018 Firefox11/26/20242415
api.WorkerNavigator.permissions 📋Chrome5/19/2015 Firefox11/26/20243479
api.fetch.init_keepalive_parameter Chrome4/17/2018 Firefox11/26/20242415

2024/10

API First Browser Date Last Browser Date Days Notes
api.CSSNestedDeclarations 📋Chrome10/15/2024 Firefox10/29/202414
api.CSSNestedDeclarations.style 📋Chrome10/15/2024 Firefox10/29/202414
api.HTMLImageElement.fetchPriority 📋Chrome5/24/2022 Firefox10/29/2024889
api.HTMLLinkElement.fetchPriority 📋Chrome5/24/2022 Firefox10/29/2024889
api.HTMLScriptElement.fetchPriority 📋Chrome5/24/2022 Firefox10/29/2024889
api.HTMLVideoElement.cancelVideoFrameCallback 📋Chrome5/19/2020 Firefox10/29/20241624
api.HTMLVideoElement.requestVideoFrameCallback 📋Chrome5/19/2020 Firefox10/29/20241624
api.MediaStreamTrack.getCapabilities 📋Chrome6/5/2017 Firefox10/29/20242703
api.Notification.silent 📋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 📋Chrome4/26/2022 Firefox10/29/2024917
api.WebGL2RenderingContext.drawingBufferColorSpace 📋Chrome8/2/2022 Firefox10/29/2024819
Firefox: Accidental early exposure with no functionality.Firefox for Android: Accidental early exposure with no functionality.
api.WebGL2RenderingContext.unpackColorSpace 📋Chrome8/2/2022 Firefox10/29/2024819
api.WebGLRenderingContext.drawingBufferColorSpace 📋Chrome8/2/2022 Firefox10/29/2024819
Firefox: Accidental early exposure with no functionality.Firefox for Android: Accidental early exposure with no functionality.
api.WebGLRenderingContext.unpackColorSpace 📋Chrome8/2/2022 Firefox10/29/2024819
api.fetch.init_priority_parameter Chrome4/26/2022 Firefox10/29/2024917
api.Document.fragmentDirective 📋Chrome10/20/2020 Firefox10/1/20241442
api.FragmentDirective 📋Chrome4/7/2020 Firefox10/1/20241638
api.PointerEvent.PointerEvent.options_altitudeAngle_parameter Chrome10/20/2020 Firefox10/1/20241442
api.PointerEvent.PointerEvent.options_azimuthAngle_parameter Chrome10/20/2020 Firefox10/1/20241442
api.PointerEvent.altitudeAngle 📋Chrome10/20/2020 Firefox10/1/20241442
api.PointerEvent.azimuthAngle 📋Chrome10/20/2020 Firefox10/1/20241442

2024/9

API First Browser Date Last Browser Date Days Notes
api.PublicKeyCredential.parseCreationOptionsFromJSON_static 📋Firefox10/24/2023 Chrome9/17/2024329
api.PublicKeyCredential.parseRequestOptionsFromJSON_static 📋Firefox10/24/2023 Chrome9/17/2024329
api.PublicKeyCredential.toJSON 📋Firefox10/24/2023 Chrome9/17/2024329
api.RTCDataChannel.binaryType.blob_value Firefox6/25/2013 Chrome9/17/20244102
api.AudioData 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.AudioData 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.allocationSize 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.clone 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.close 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.copyTo 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.duration 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.format 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.numberOfChannels 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.numberOfFrames 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.sampleRate 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioData.timestamp 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.AudioDecoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.close 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.configure 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.decode 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.decodeQueueSize 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.dequeue_event 📋Chrome9/27/2022 Firefox9/3/2024707
api.AudioDecoder.flush 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.isConfigSupported_static 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.reset 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioDecoder.state 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.AudioEncoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.close 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.configure 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.configure.bitrateMode 📋Chrome10/31/2023 Firefox9/3/2024308
api.AudioEncoder.configure.opus 📋Chrome2/7/2023 Firefox9/3/2024574
api.AudioEncoder.dequeue_event 📋Chrome9/27/2022 Firefox9/3/2024707
api.AudioEncoder.encode 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.encodeQueueSize 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.flush 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.isConfigSupported_static 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.reset 📋Chrome9/21/2021 Firefox9/3/20241078
api.AudioEncoder.state 📋Chrome9/21/2021 Firefox9/3/20241078
api.CSPViolationReportBody 📋Chrome4/23/2019 Firefox9/3/20241960
api.Element.contentvisibilityautostatechange_event 📋Chrome11/29/2022 Firefox9/3/2024644
Firefox: The oncontentvisibilityautostatechange event handler property is not supported.Firefox for Android: The oncontentvisibilityautostatechange event handler property is not supported.
api.EncodedAudioChunk 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedAudioChunk.EncodedAudioChunk 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedAudioChunk.byteLength 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedAudioChunk.copyTo 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedAudioChunk.duration 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedAudioChunk.timestamp 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedAudioChunk.type 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.EncodedVideoChunk 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.byteLength 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.copyTo 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.duration 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.timestamp 📋Chrome9/21/2021 Firefox9/3/20241078
api.EncodedVideoChunk.type 📋Chrome9/21/2021 Firefox9/3/20241078
api.HTMLDetailsElement.name 📋Chrome12/5/2023 Firefox9/3/2024273
api.VideoColorSpace 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.VideoColorSpace 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.fullRange 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.matrix 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.primaries 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.toJSON 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoColorSpace.transfer 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.VideoDecoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.close 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.configure 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.decode 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.decodeQueueSize 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.dequeue_event 📋Chrome9/27/2022 Firefox9/3/2024707
api.VideoDecoder.flush 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.isConfigSupported_static 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.reset 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoDecoder.state 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.VideoEncoder 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.close 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.configure 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.dequeue_event 📋Chrome9/27/2022 Firefox9/3/2024707
api.VideoEncoder.encode 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.encodeQueueSize 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.flush 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.isConfigSupported_static 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.reset 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoEncoder.state 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.VideoFrame 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.allocationSize 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.clone 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.close 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.codedHeight 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.codedRect 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.codedWidth 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.colorSpace 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.copyTo 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.displayHeight 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.displayWidth 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.duration 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.format 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.timestamp 📋Chrome9/21/2021 Firefox9/3/20241078
api.VideoFrame.visibleRect 📋Chrome9/21/2021 Firefox9/3/20241078

2024/8

API First Browser Date Last Browser Date Days Notes
api.CaretPosition 📋Firefox4/2/2013 Chrome8/20/20244158
api.CaretPosition.getClientRect 📋Firefox8/6/2013 Chrome8/20/20244032
api.CaretPosition.offset 📋Firefox4/2/2013 Chrome8/20/20244158
api.CaretPosition.offsetNode 📋Firefox4/2/2013 Chrome8/20/20244158
api.Document.caretPositionFromPoint 📋Firefox4/2/2013 Chrome8/20/20244158
api.Element.ariaColIndexText 📋Firefox10/24/2023 Chrome8/20/2024301
api.Element.ariaRowIndexText 📋Firefox10/24/2023 Chrome8/20/2024301
api.Element.currentCSSZoom 📋Firefox5/14/2024 Chrome8/20/202498
api.ElementInternals.ariaColIndexText 📋Firefox10/24/2023 Chrome8/20/2024301
api.ElementInternals.ariaRowIndexText 📋Firefox10/24/2023 Chrome8/20/2024301
api.MediaSession.setActionHandler.skipad_type Firefox10/20/2020 Chrome8/20/20241400
api.Navigator.canShare 📋Firefox1/11/2022 Chrome8/20/2024952
Chrome: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.Edge: Only supported on Windows.Opera: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.
api.Navigator.share 📋Firefox12/10/2019 Chrome8/20/20241715
Chrome: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.Edge: Only supported on Windows.Opera: Only supported on ChromeOS and Windows, see bug 40542648 and bug 40729163.
api.CSSStartingStyleRule 📋Chrome9/12/2023 Firefox8/6/2024329
api.Element.auxclick_event.type_pointerevent Chrome7/20/2021 Firefox8/6/20241113
api.Element.click_event.type_pointerevent Chrome7/20/2021 Firefox8/6/20241113
api.Element.contextmenu_event.type_pointerevent Chrome7/20/2021 Firefox8/6/20241113
api.GeolocationCoordinates.toJSON 📋Chrome6/11/2024 Firefox8/6/202456
api.GeolocationPosition.toJSON 📋Chrome6/11/2024 Firefox8/6/202456
api.MediaCapabilities.decodingInfo.configuration_keySystemConfiguration_parameter 📋Chrome2/4/2020 Firefox8/6/20241645
api.PerformanceResourceTiming.responseStatus 📋Chrome1/10/2023 Firefox8/6/2024574
api.RTCDTMFSender.canInsertDTMF 📋Chrome5/21/2013 Firefox8/6/20244095
api.TextEvent 📋Chrome12/11/2008 Firefox8/6/20245717
api.TextEvent.data 📋Chrome12/11/2008 Firefox8/6/20245717
api.TextEvent.initTextEvent 📋Chrome12/11/2008 Firefox8/6/20245717

2024/7

API First Browser Date Last Browser Date Days Notes
api.HTMLInputElement.selectionchange_event 📋Firefox9/7/2021 Chrome7/23/20241050
Chrome: Before Chrome 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <input> elements.Chrome Android: Before Chrome Android 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <input> elements.Edge: Before Edge 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <input> elements.Opera: Before Opera 113, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <input> elements.Opera Android: Before Opera Android 84, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <input> elements.Safari: Before Safari 18, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 271033 for firing the event on <input> elements.Safari on iOS: Before Safari on iOS 18, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 271033 for firing the event on <input> elements.Samsung Internet: Before Samsung Internet 28.0, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <input> elements.WebView Android: Before WebView Android 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <input> elements.WebView on iOS: Before WebView on iOS 18, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 271033 for firing the event on <input> elements.
api.HTMLTextAreaElement.selectionchange_event 📋Firefox9/7/2021 Chrome7/23/20241050
Chrome: Before Chrome 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <textarea> elements.Chrome Android: Before Chrome Android 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <textarea> elements.Edge: Before Edge 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <textarea> elements.Opera: Before Opera 113, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <textarea> elements.Opera Android: Before Opera Android 84, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <textarea> elements.Safari: Before Safari 18, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 271033 for firing the event on <textarea> elements.Safari on iOS: Before Safari on iOS 18, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 271033 for firing the event on <textarea> elements.Samsung Internet: Before Samsung Internet 28.0, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <textarea> elements.WebView Android: Before WebView Android 127, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 40840956 for firing the event on <textarea> elements.WebView on iOS: Before WebView on iOS 18, a selectionchange event was fired on Document, see Document's selectionchange event. See bug 271033 for firing the event on <textarea> elements.
api.CSS.registerProperty_static 📋Chrome10/22/2019 Firefox7/9/20241722
api.CSSPropertyRule 📋Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.inherits 📋Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.initialValue 📋Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.name 📋Chrome8/25/2020 Firefox7/9/20241414
api.CSSPropertyRule.syntax 📋Chrome8/25/2020 Firefox7/9/20241414
api.Document.parseHTMLUnsafe_static 📋Chrome4/16/2024 Firefox7/9/202484
Firefox: Throws error NS_ERROR_UNEXPECTED (bug 1887817.)Firefox for Android: Throws error NS_ERROR_UNEXPECTED (bug 1887817.)Safari: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).Safari on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).WebView on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).
api.Element.attachShadow.options_serializable_parameter 📋Chrome5/14/2024 Firefox7/9/202456
api.Element.getHTML 📋Chrome5/14/2024 Firefox7/9/202456
api.HTMLBaseElement.href.forbid_special_characters Chrome9/5/2017 Firefox7/9/20242499
api.HTMLTemplateElement.shadowRootSerializable 📋Chrome5/14/2024 Firefox7/9/202456
api.MediaKeys.getStatusForPolicy 📋Chrome3/12/2019 Firefox7/9/20241946
api.RTCRtpReceiver.getParameters 📋Chrome6/5/2017 Firefox7/9/20242591
api.RTCRtpReceiver.getParameters.return_object_property_codecs 📋Chrome9/4/2018 Firefox7/9/20242135
api.RTCRtpSender.getParameters.return_object_property_codecs 📋Chrome9/4/2018 Firefox7/9/20242135
Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.setParameters.parameters_codecs_parameter 📋Chrome9/4/2018 Firefox7/9/20242135
Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpTransceiver.setCodecPreferences 📋Chrome7/30/2019 Firefox7/9/20241806
api.ShadowRoot.getHTML 📋Chrome5/14/2024 Firefox7/9/202456
api.ShadowRoot.serializable 📋Chrome5/14/2024 Firefox7/9/202456

2024/6

API First Browser Date Last Browser Date Days Notes
api.Clipboard.read 📋Chrome7/30/2019 Firefox6/11/20241778
Chrome: The user must grant the clipboard-read permission.Chrome Android: The user must grant the clipboard-read permission.Edge: The user must grant the clipboard-read permission.Firefox: This method must be called within user gesture event handlers.Firefox: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox: Web extensions with the clipboardRead permission in their manifest can read data without the paste prompt displaying. Prior to Firefox 147, extensions without this permission were unable to read clipboard data.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox for Android: Web extensions with the clipboardRead permission in their manifest can read data without the paste prompt displaying. Prior to Firefox for Android 147, extensions without this permission were unable to read clipboard data.Quest Browser: The user must grant the clipboard-read permission.Opera: The user must grant the clipboard-read permission.Opera Android: The user must grant the clipboard-read permission.Samsung Internet: The user must grant the clipboard-read permission.WebView Android: The user must grant the clipboard-read permission.
api.Clipboard.type_image-png Chrome7/30/2019 Firefox6/11/20241778
api.Clipboard.type_text-html Chrome10/20/2020 Firefox6/11/20241330
api.Clipboard.type_text-plain Chrome7/30/2019 Firefox6/11/20241778
api.Clipboard.write 📋Chrome7/30/2019 Firefox6/11/20241778
Chrome: From version 107, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Chrome: Before version 107, the user must grant the clipboard-write permission.Chrome Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Chrome Android: Before version 107, the user must grant the clipboard-write permission.Firefox: This method must be called within user gesture event handlers.Firefox: Web extensions with the clipboardWrite permission in their manifest can write data without a user gesture.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: Web extensions with the clipboardWrite permission in their manifest can write data without a user gesture.Quest Browser: From version false, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Quest Browser: Before version false, the user must grant the clipboard-write permission.Opera: From version 93, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Opera: Before version 93, the user must grant the clipboard-write permission.Opera Android: From version 73, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Opera Android: Before version 73, the user must grant the clipboard-write permission.Samsung Internet: From version 21.0, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Samsung Internet: Before version 21.0, the user must grant the clipboard-write permission.WebView Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.WebView Android: Before version 107, the user must grant the clipboard-write permission.
api.ClipboardItem 📋Chrome7/30/2019 Firefox6/11/20241778
api.ClipboardItem.getType 📋Chrome7/30/2019 Firefox6/11/20241778
api.ClipboardItem.supports_static 📋Chrome1/23/2024 Firefox6/11/2024140
api.ClipboardItem.types 📋Chrome7/30/2019 Firefox6/11/20241778
api.URL.parse_static 📋Firefox5/14/2024 Chrome6/11/202428
api.VTTCue.text.all_html_character_references Chrome12/6/2017 Firefox6/11/20242379

2024/5

API First Browser Date Last Browser Date Days Notes
api.CustomStateSet 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.@@iterator 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.add 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.clear 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.delete 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.entries 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.forEach 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.has 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.keys 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.size 📋Chrome4/13/2021 Firefox5/14/20241127
api.CustomStateSet.values 📋Chrome4/13/2021 Firefox5/14/20241127
api.ElementInternals.states 📋Chrome4/13/2021 Firefox5/14/20241127
api.IDBFactory.databases 📋Chrome1/29/2019 Firefox5/14/20241932
api.IDBTransaction.durability 📋Chrome5/19/2020 Firefox5/14/20241456
api.Navigator.wakeLock 📋Chrome7/27/2020 Firefox5/14/20241387
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.Permissions.permission_screen-wake-lock 📋Chrome7/27/2020 Firefox5/14/20241387
Firefox: The value is recognized, but has no effect.Firefox for Android: The value is recognized, but has no effect.
api.RTCIceCandidate.address 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.component 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.foundation 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.port 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.priority 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.protocol 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.relatedAddress 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.relatedPort 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.tcpType 📋Chrome4/23/2019 Firefox5/14/20241848
api.RTCIceCandidate.type 📋Chrome4/23/2019 Firefox5/14/20241848
api.WakeLock 📋Chrome7/27/2020 Firefox5/14/20241387
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLock.request 📋Chrome7/27/2020 Firefox5/14/20241387
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel 📋Chrome7/27/2020 Firefox5/14/20241387
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.release 📋Chrome7/27/2020 Firefox5/14/20241387
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.release_event 📋Chrome7/27/2020 Firefox5/14/20241387
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.released 📋Chrome11/17/2020 Firefox5/14/20241274
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WakeLockSentinel.type 📋Chrome7/27/2020 Firefox5/14/20241387
Safari on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.WebView on iOS: Does not work in standalone Home Screen Web Apps. See bug 254545.
api.WebSocket.WebSocket.url_parameter_http_https_relative Firefox3/19/2024 Chrome5/14/202456

2024/4

API First Browser Date Last Browser Date Days Notes
api.AbortSignal.timeout_static 📋Firefox5/3/2022 Chrome4/16/2024714
Chrome: Always aborts with an AbortError on timeout, not a TimeoutError.Chrome Android: Always aborts with an AbortError on timeout, not a TimeoutError.Edge: Always aborts with an AbortError on timeout, not a TimeoutError.Quest Browser: Always aborts with an AbortError on timeout, not a TimeoutError.Opera: Always aborts with an AbortError on timeout, not a TimeoutError.Opera Android: Always aborts with an AbortError on timeout, not a TimeoutError.Samsung Internet: Always aborts with an AbortError on timeout, not a TimeoutError.WebView Android: Always aborts with an AbortError on timeout, not a TimeoutError.
api.CanvasRenderingContext2D.isContextLost 📋Chrome3/1/2022 Firefox4/16/2024777
api.Clipboard.readText 📋Chrome4/17/2018 Firefox4/16/20242191
Chrome: The user must grant the clipboard-read permission.Chrome Android: The user must grant the clipboard-read permission.Edge: The user must grant the clipboard-read permission.Firefox: This method must be called within user gesture event handlers.Firefox: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox: Web extensions with the clipboardRead permission in their manifest can read data without the paste prompt displaying. Prior to Firefox 147, extensions without this permission were unable to read clipboard data.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: A paste prompt is displayed when the clipboard is read. If the clipboard contains same-origin content, the prompt is suppressed.Firefox for Android: Web extensions with the clipboardRead permission in their manifest can read data without the paste prompt displaying. Prior to Firefox for Android 147, extensions without this permission were unable to read clipboard data.Quest Browser: The user must grant the clipboard-read permission.Opera: The user must grant the clipboard-read permission.Opera Android: The user must grant the clipboard-read permission.Samsung Internet: The user must grant the clipboard-read permission.WebView Android: The user must grant the clipboard-read permission.
api.ContentVisibilityAutoStateChangeEvent 📋Chrome11/29/2022 Firefox4/16/2024504
api.ContentVisibilityAutoStateChangeEvent.ContentVisibilityAutoStateChangeEvent 📋Chrome11/29/2022 Firefox4/16/2024504
api.ContentVisibilityAutoStateChangeEvent.skipped 📋Chrome11/29/2022 Firefox4/16/2024504
api.Element.ariaBrailleLabel 📋Chrome10/25/2022 Firefox4/16/2024539
api.Element.ariaBrailleRoleDescription 📋Chrome10/25/2022 Firefox4/16/2024539
api.Element.attachShadow.options_clonable_parameter 📋Firefox2/20/2024 Chrome4/16/202456
api.Element.setHTMLUnsafe 📋Firefox2/20/2024 Chrome4/16/202456
Safari: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).Safari on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).WebView on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).
api.ElementInternals.ariaBrailleLabel 📋Chrome10/25/2022 Firefox4/16/2024539
api.ElementInternals.ariaBrailleRoleDescription 📋Chrome10/25/2022 Firefox4/16/2024539
api.HTMLButtonElement.popoverTargetAction 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLButtonElement.popoverTargetElement 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLCanvasElement.contextlost_event 📋Chrome3/1/2022 Firefox4/16/2024777
api.HTMLCanvasElement.contextrestored_event 📋Chrome3/1/2022 Firefox4/16/2024777
api.HTMLElement.beforetoggle_event 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.beforetoggle_event.popover_elements 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.hidePopover 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.inert.ignores_find_in_page 📋Firefox11/21/2023 Chrome4/16/2024147
api.HTMLElement.popover 📋Chrome5/30/2023 Firefox4/16/2024322
Safari on iOS: On iOS and iPadOS, popovers are not dismissed when the user taps outside of the popover area, see bug 267688.WebView on iOS: On iOS and iPadOS, popovers are not dismissed when the user taps outside of the popover area, see bug 267688.
api.HTMLElement.showPopover 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.togglePopover 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLElement.togglePopover.returns_boolean Chrome8/15/2023 Firefox4/16/2024245
api.HTMLElement.toggle_event.popover_elements 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLInputElement.popoverTargetAction 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLInputElement.popoverTargetElement 📋Chrome5/30/2023 Firefox4/16/2024322
api.HTMLTemplateElement.shadowRootClonable 📋Chrome4/16/2024 Firefox4/16/2024
api.OffscreenCanvas.contextlost_event 📋Chrome3/1/2022 Firefox4/16/2024777
api.OffscreenCanvas.contextrestored_event 📋Chrome3/1/2022 Firefox4/16/2024777
api.OffscreenCanvasRenderingContext2D.isContextLost 📋Chrome3/1/2022 Firefox4/16/2024777
api.RTCDtlsTransport.iceTransport 📋Chrome1/29/2019 Firefox4/16/20241904
api.RTCIceTransport 📋Chrome6/4/2019 Firefox4/16/20241778
api.RTCIceTransport.gatheringState 📋Chrome6/4/2019 Firefox4/16/20241778
api.RTCIceTransport.gatheringstatechange_event 📋Chrome6/4/2019 Firefox4/16/20241778
api.RTCIceTransport.state 📋Chrome6/4/2019 Firefox4/16/20241778
api.RTCIceTransport.statechange_event 📋Chrome6/4/2019 Firefox4/16/20241778
api.RTCRtpReceiver.jitterBufferTarget 📋Firefox7/4/2023 Chrome4/16/2024287
api.ReadableStream.@@asyncIterator 📋Firefox2/14/2023 Chrome4/16/2024427
api.ReadableStream.values 📋Firefox2/14/2023 Chrome4/16/2024427
api.ShadowRoot.clonable 📋Firefox2/20/2024 Chrome4/16/202456
api.ShadowRoot.setHTMLUnsafe 📋Firefox2/20/2024 Chrome4/16/202456
Safari: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).Safari on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).WebView on iOS: If there are custom elements in a declarative shadow root in the parsed HTML, then the elements' constructors and connectedCallback() methods are not called (bug 296420).
api.WebTransport.WebTransport.options_serverCertificateHashes_parameter 📋Chrome3/29/2022 Firefox4/16/2024749

2024/3

API First Browser Date Last Browser Date Days Notes
api.AbortSignal.any_static 📋Chrome8/15/2023 Firefox3/19/2024217
api.CSSKeyframesRule.length 📋Firefox1/17/2023 Chrome3/19/2024427
api.HTMLTemplateElement.shadowRootDelegatesFocus 📋Firefox2/20/2024 Chrome3/19/202428

2024/2

API First Browser Date Last Browser Date Days Notes
api.HTMLTemplateElement.shadowRootMode 📋Chrome3/7/2023 Firefox2/20/2024350

2024/1

API First Browser Date Last Browser Date Days Notes
api.CSSImportRule.supportsText 📋Firefox6/6/2023 Chrome1/23/2024231
api.Element.checkVisibility.options_contentVisibilityAuto_parameter 📋Chrome1/23/2024 Firefox1/23/2024
api.Element.checkVisibility.options_opacityProperty_parameter 📋Chrome1/23/2024 Firefox1/23/2024
api.Element.checkVisibility.options_visibilityProperty_parameter 📋Chrome1/23/2024 Firefox1/23/2024
api.HTMLSelectElement.showPicker 📋Chrome1/23/2024 Firefox1/23/2024
api.HTMLVideoElement.disablePictureInPicture 📋Chrome9/4/2018 Firefox1/23/20241967
Firefox: When this property is set to true, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox: This property is undefined, but still has an effect if set to a value.Firefox: When this property is set to true, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox for Android: When this property is set to true, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.Firefox for Android: This property is undefined, but still has an effect if set to a value.Firefox for Android: When this property is set to true, the overlay button to disable picture-in-picture (PiP) is hidden, but the user can still enable PiP.
api.LargestContentfulPaint 📋Chrome9/10/2019 Firefox1/23/20241596
api.LargestContentfulPaint.element 📋Chrome9/10/2019 Firefox1/23/20241596
api.LargestContentfulPaint.id 📋Chrome9/10/2019 Firefox1/23/20241596
api.LargestContentfulPaint.loadTime 📋Chrome9/10/2019 Firefox1/23/20241596
api.LargestContentfulPaint.renderTime 📋Chrome9/10/2019 Firefox1/23/20241596
api.LargestContentfulPaint.size 📋Chrome9/10/2019 Firefox1/23/20241596
api.LargestContentfulPaint.toJSON 📋Chrome9/10/2019 Firefox1/23/20241596
api.LargestContentfulPaint.url 📋Chrome9/10/2019 Firefox1/23/20241596

2023/12

API First Browser Date Last Browser Date Days Notes
api.HTMLIFrameElement.loading 📋Chrome9/10/2019 Firefox12/19/20231561
api.FontFaceSet.check 📋Firefox9/22/2015 Chrome12/5/20232996
Chrome: Prior to version 120, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.Chrome Android: Prior to version 120, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.Edge: Prior to version 120, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.Quest Browser: Prior to version false, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.Opera: Prior to version 106, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.Opera Android: Prior to version 80, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.Samsung Internet: Prior to version 25.0, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.WebView Android: Prior to version 120, this method returned false instead of true for nonexistent or locally installed fonts. See bug 40893726.
api.URL.canParse_static 📋Firefox7/4/2023 Chrome12/5/2023154

2023/11

API First Browser Date Last Browser Date Days Notes
api.CredentialsContainer.create.publicKey_option.extensions.minPinLength Chrome2/1/2022 Firefox11/21/2023658
api.Navigator.userActivation 📋Chrome1/29/2019 Firefox11/21/20231757
api.PublicKeyCredential.authenticatorAttachment 📋Chrome2/1/2022 Firefox11/21/2023658
api.ToggleEvent 📋Chrome5/30/2023 Firefox11/21/2023175
api.ToggleEvent.ToggleEvent 📋Chrome5/30/2023 Firefox11/21/2023175
api.ToggleEvent.newState 📋Chrome5/30/2023 Firefox11/21/2023175
api.ToggleEvent.oldState 📋Chrome5/30/2023 Firefox11/21/2023175
api.UserActivation 📋Chrome1/29/2019 Firefox11/21/20231757
api.UserActivation.hasBeenActive 📋Chrome1/29/2019 Firefox11/21/20231757
api.UserActivation.isActive 📋Chrome1/29/2019 Firefox11/21/20231757

2023/10

API First Browser Date Last Browser Date Days Notes
api.BeforeUnloadEvent.returnValue 📋Firefox11/29/2005 Chrome10/31/20236545
Chrome: Before Chrome 119, an empty string incorrectly activated the confirmation dialog.Chrome Android: Before Chrome Android 119, an empty string incorrectly activated the confirmation dialog.Quest Browser: Before Quest Browser false, an empty string incorrectly activated the confirmation dialog.Opera: Before Opera 105, an empty string incorrectly activated the confirmation dialog.Opera Android: Before Opera Android 79, an empty string incorrectly activated the confirmation dialog.WebView Android: Before WebView Android 119, an empty string incorrectly activated the confirmation dialog.
api.Document.hasStorageAccess 📋Firefox1/29/2019 Chrome10/31/20231736
api.Document.requestStorageAccess 📋Firefox1/29/2019 Chrome10/31/20231736
Safari: Client-side storage access is granted per-page (see explanation).Safari on iOS: Client-side storage access is granted per-page (see explanation).WebView on iOS: Client-side storage access is granted per-page (see explanation).
api.Permissions.permission_storage-access 📋Firefox8/29/2023 Chrome10/31/202363
api.Window.beforeunload_event.event_returnvalue_activation Firefox8/16/2011 Chrome10/31/20234459
Chrome: Before Chrome 119, an empty string incorrectly activated the confirmation dialog.Chrome Android: Before Chrome Android 119, an empty string incorrectly activated the confirmation dialog.Edge: Before Edge 119, an empty string incorrectly activated the confirmation dialog.Quest Browser: Before Quest Browser false, an empty string incorrectly activated the confirmation dialog.Opera: Before Opera 105, an empty string incorrectly activated the confirmation dialog.Opera Android: Before Opera Android 79, an empty string incorrectly activated the confirmation dialog.Samsung Internet: Before Samsung Internet 25.0, an empty string incorrectly activated the confirmation dialog.WebView Android: Before WebView Android 119, an empty string incorrectly activated the confirmation dialog.
api.Window.beforeunload_event.preventdefault_activation Firefox8/16/2011 Chrome10/31/20234459
api.AuthenticatorAttestationResponse.getAuthenticatorData 📋Chrome8/25/2020 Firefox10/24/20231155
api.AuthenticatorAttestationResponse.getPublicKey 📋Chrome8/25/2020 Firefox10/24/20231155
api.AuthenticatorAttestationResponse.getPublicKeyAlgorithm 📋Chrome8/25/2020 Firefox10/24/20231155
api.AuthenticatorAttestationResponse.getTransports 📋Chrome4/23/2019 Firefox10/24/20231645
api.CredentialsContainer.create.publicKey_option.extensions.credProps 📋Chrome3/2/2021 Firefox10/24/2023966
api.Element.ariaAtomic 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaAutoComplete 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaBusy 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaChecked 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaColCount 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaColIndex 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaColSpan 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaCurrent 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaDescription 📋Chrome5/19/2020 Firefox10/24/20231253
api.Element.ariaDisabled 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaExpanded 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaHasPopup 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaHidden 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaInvalid 📋Chrome5/24/2022 Firefox10/24/2023518
api.Element.ariaKeyShortcuts 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaLabel 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaLevel 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaLive 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaModal 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaMultiLine 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaMultiSelectable 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaOrientation 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaPlaceholder 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaPosInSet 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaPressed 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaReadOnly 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaRelevant Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaRequired 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaRoleDescription 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaRowCount 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaRowIndex 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaRowSpan 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaSelected 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaSetSize 📋Chrome7/27/2020 Firefox10/24/20231184
api.Element.ariaSort 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaValueMax 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaValueMin 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaValueNow 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.ariaValueText 📋Chrome4/7/2020 Firefox10/24/20231295
api.Element.role 📋Chrome6/21/2022 Firefox10/24/2023490
api.ElementInternals.ariaAtomic 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaAutoComplete 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaBusy 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaChecked 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaColCount 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaColIndex 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaColSpan 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaCurrent 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaDescription 📋Chrome5/19/2020 Firefox10/24/20231253
api.ElementInternals.ariaDisabled 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaExpanded 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaHasPopup 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaHidden 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaInvalid 📋Chrome5/24/2022 Firefox10/24/2023518
api.ElementInternals.ariaKeyShortcuts 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaLabel 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaLevel 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaLive 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaModal 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaMultiLine 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaMultiSelectable 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaOrientation 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaPlaceholder 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaPosInSet 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaPressed 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaReadOnly 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRelevant Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRequired 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRoleDescription 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRowCount 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRowIndex 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaRowSpan 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaSelected 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaSetSize 📋Chrome7/27/2020 Firefox10/24/20231184
api.ElementInternals.ariaSort 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueMax 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueMin 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueNow 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.ariaValueText 📋Chrome4/7/2020 Firefox10/24/20231295
api.ElementInternals.role 📋Chrome6/21/2022 Firefox10/24/2023490
api.PublicKeyCredential.isConditionalMediationAvailable_static 📋Chrome11/29/2022 Firefox10/24/2023329
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_hkdf 📋Chrome3/3/2015 Firefox10/24/20233157
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_pbkdf2 📋Chrome3/3/2015 Firefox10/24/20233157
api.SVGImageElement.crossOrigin 📋Firefox6/6/2023 Chrome10/10/2023126
api.TextMetrics.alphabeticBaseline 📋Firefox8/1/2023 Chrome10/10/202370
api.TextMetrics.hangingBaseline 📋Firefox8/1/2023 Chrome10/10/202370
api.TextMetrics.ideographicBaseline 📋Firefox8/1/2023 Chrome10/10/202370

2023/9

API First Browser Date Last Browser Date Days Notes
api.RTCPeerConnection.getReceivers.stopped_transceivers_removed Chrome1/19/2021 Firefox9/26/2023980
api.RTCPeerConnection.getSenders.stopped_transceivers_removed Chrome1/19/2021 Firefox9/26/2023980
api.RTCPeerConnection.getTransceivers.stopped_transceivers_removed Chrome1/19/2021 Firefox9/26/2023980
api.RTCRtpTransceiver.currentDirection.stopped_value 📋Chrome6/21/2022 Firefox9/26/2023462
api.RTCRtpTransceiver.direction.value_stopped 📋Chrome6/21/2022 Firefox9/26/2023462
api.TextMetrics.emHeightAscent 📋Chrome9/10/2019 Firefox9/26/20231477
api.TextMetrics.emHeightDescent 📋Chrome9/10/2019 Firefox9/26/20231477
api.CustomElementRegistry.getName 📋Firefox8/1/2023 Chrome9/12/202342
Safari: Supports 'Autonomous custom elements' but not 'Customized built-in elements'.Safari on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'.WebView on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'.
api.URLSearchParams.delete.value_parameter Firefox7/4/2023 Chrome9/12/202370
api.URLSearchParams.has.value_parameter Firefox7/4/2023 Chrome9/12/202370

2023/8

API First Browser Date Last Browser Date Days Notes
api.CSSStyleRule.cssRules 📋Chrome4/4/2023 Firefox8/29/2023147
api.CSSStyleRule.deleteRule 📋Chrome4/4/2023 Firefox8/29/2023147
api.CSSStyleRule.insertRule 📋Chrome4/4/2023 Firefox8/29/2023147
api.CanvasRenderingContext2D.fontStretch 📋Chrome3/1/2022 Firefox8/29/2023546
api.CanvasRenderingContext2D.fontVariantCaps 📋Chrome3/1/2022 Firefox8/29/2023546
api.CanvasRenderingContext2D.getContextAttributes 📋Chrome3/12/2019 Firefox8/29/20231631
api.Notification.requireInteraction 📋Chrome12/1/2015 Firefox8/29/20232828
Firefox: Only supported on Windows. Behind a flag on other operating systems.Firefox for Android: Only supported on Windows. Behind a flag on other operating systems.
api.OffscreenCanvasRenderingContext2D.fontStretch 📋Chrome3/1/2022 Firefox8/29/2023546
api.OffscreenCanvasRenderingContext2D.fontVariantCaps 📋Chrome3/1/2022 Firefox8/29/2023546
api.RTCEncodedAudioFrame 📋Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedAudioFrame.data 📋Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedAudioFrame.getMetadata 📋Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedAudioFrame.timestamp Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame 📋Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.data 📋Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.getMetadata 📋Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.timestamp Chrome10/20/2020 Firefox8/29/20231043
api.RTCEncodedVideoFrame.type 📋Chrome10/20/2020 Firefox8/29/20231043
api.Response.body.readable_byte_stream Firefox6/28/2022 Chrome8/15/2023413
api.CanvasRenderingContext2D.textRendering 📋Chrome3/1/2022 Firefox8/1/2023518
api.HTMLInputElement.dirName 📋Chrome2/8/2012 Firefox8/1/20234192
api.HTMLMediaElement.setSinkId 📋Chrome3/2/2016 Firefox8/1/20232708
Chrome Android: Not available due to a limitation in Android, see bug 41276355.Firefox for Android: Not available due to a limitation in Android, see bug 1473346.Quest Browser: Not available due to a limitation in Android, see bug 41276355.Opera Android: Not available due to a limitation in Android, see bug 41276355.Samsung Internet: Not available due to a limitation in Android, see bug 41276355.WebView Android: Not available due to a limitation in Android, see bug 41276355.
api.HTMLMediaElement.sinkId 📋Chrome3/2/2016 Firefox8/1/20232708
Chrome Android: Not available due to a limitation in Android, see bug 41276355.Firefox for Android: Not available due to a limitation in Android, see bug 1473346.Quest Browser: Not available due to a limitation in Android, see bug 41276355.Opera Android: Not available due to a limitation in Android, see bug 41276355.Samsung Internet: Not available due to a limitation in Android, see bug 41276355.WebView Android: Not available due to a limitation in Android, see bug 41276355.
api.HTMLTextAreaElement.dirName 📋Chrome2/8/2012 Firefox8/1/20234192
api.MediaDevices.enumerateDevices 📋Chrome12/1/2015 Firefox8/1/20232800
Firefox: enumerateDevices() enumerates both input and output devices. Previously only input devices were returned.Firefox: enumerateDevices() only returns input devices.Firefox for Android: enumerateDevices() enumerates both input and output devices. Previously only input devices were returned.Firefox for Android: enumerateDevices() only returns input devices.
api.OffscreenCanvasRenderingContext2D.filter 📋Chrome9/4/2018 Firefox8/1/20231792
api.OffscreenCanvasRenderingContext2D.textRendering 📋Chrome3/1/2022 Firefox8/1/2023518
api.RTCStatsReport.type_media-source.frames 📋Chrome4/13/2021 Firefox8/1/2023840
api.RTCStatsReport.type_media-source.framesPerSecond 📋Chrome2/4/2020 Firefox8/1/20231274
api.RTCStatsReport.type_media-source.height 📋Chrome2/4/2020 Firefox8/1/20231274
api.RTCStatsReport.type_media-source.width 📋Chrome2/4/2020 Firefox8/1/20231274
api.TextMetrics.fontBoundingBoxAscent 📋Chrome11/17/2020 Firefox8/1/2023987
api.TextMetrics.fontBoundingBoxDescent 📋Chrome11/17/2020 Firefox8/1/2023987

2023/7

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.letterSpacing 📋Chrome3/1/2022 Firefox7/4/2023490
api.CanvasRenderingContext2D.wordSpacing 📋Chrome3/1/2022 Firefox7/4/2023490
api.OffscreenCanvasRenderingContext2D.letterSpacing 📋Chrome3/1/2022 Firefox7/4/2023490
api.OffscreenCanvasRenderingContext2D.wordSpacing 📋Chrome3/1/2022 Firefox7/4/2023490
api.RTCStatsReport.type_outbound-rtp.framesPerSecond 📋Chrome7/27/2020 Firefox7/4/20231072
api.Response.json_static 📋Chrome9/2/2022 Firefox7/4/2023305

2023/6

API First Browser Date Last Browser Date Days Notes
api.CredentialsContainer.create.publicKey_option.residentKey 📋Chrome3/2/2021 Firefox6/6/2023826
api.SharedWorker.SharedWorker.ecmascript_modules Chrome2/4/2020 Firefox6/6/20231218
Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.WebView on iOS: Nested workers support was introduced in WebView on iOS 15.5.WebView on iOS: Script loading in nested workers was introduced in WebView on iOS 16.4.
api.SharedWorker.SharedWorker.options_type_parameter Chrome2/4/2020 Firefox6/6/20231218
api.WebTransport 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.WebTransport 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.byob_readers Chrome1/10/2023 Firefox6/6/2023147
api.WebTransport.close 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.closed 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.createBidirectionalStream 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.createUnidirectionalStream 📋Chrome1/4/2022 Firefox6/6/2023518
Firefox: Returns a WritableStream instead of a WebTransportSendStream.Firefox for Android: Returns a WritableStream instead of a WebTransportSendStream.
api.WebTransport.createUnidirectionalStream.byob_readers Chrome1/10/2023 Firefox6/6/2023147
api.WebTransport.datagrams 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.incomingBidirectionalStreams 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.incomingUnidirectionalStreams 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransport.ready 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportBidirectionalStream 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportBidirectionalStream.readable 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportBidirectionalStream.writable 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream.incomingHighWaterMark 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream.incomingMaxAge 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream.maxDatagramSize 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream.outgoingHighWaterMark 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream.outgoingMaxAge 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream.readable 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportDatagramDuplexStream.writable Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportError 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportError.WebTransportError 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportError.source 📋Chrome1/4/2022 Firefox6/6/2023518
api.WebTransportError.streamErrorCode 📋Chrome1/4/2022 Firefox6/6/2023518
api.Worker.Worker.ecmascript_modules Chrome2/4/2020 Firefox6/6/20231218
Node.js: ECMAScript modules are enabled for files ending with .mjs and for files ending with .js when the nearest parent package.json file contains a top-level field "type" with a value of "module".Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.WebView on iOS: Nested workers support was introduced in WebView on iOS 15.5.WebView on iOS: Script loading in nested workers was introduced in WebView on iOS 16.4.
api.Worker.Worker.options_type_parameter Chrome2/4/2020 Firefox6/6/20231218
Deno: Only supports module
api.Worklet.ecmascript_modules Chrome2/4/2020 Firefox6/6/20231218
Safari: Nested workers support was introduced in Safari 15.5.Safari: Script loading in nested workers was introduced in Safari 16.4.Safari on iOS: Nested workers support was introduced in Safari on iOS 15.5.Safari on iOS: Script loading in nested workers was introduced in Safari on iOS 16.4.WebView on iOS: Nested workers support was introduced in WebView on iOS 15.5.WebView on iOS: Script loading in nested workers was introduced in WebView on iOS 16.4.

2023/5

API First Browser Date Last Browser Date Days Notes
api.Document.scrollend_event 📋Firefox1/17/2023 Chrome5/30/2023133
api.Element.scrollend_event 📋Firefox1/17/2023 Chrome5/30/2023133
api.CanvasRenderingContext2D.reset 📋Chrome3/1/2022 Firefox5/9/2023434
api.CompressionStream 📋Chrome2/4/2020 Firefox5/9/20231190
Node.js: Available as a part of the stream/web module.
api.CompressionStream.CompressionStream 📋Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.CompressionStream.deflate 📋Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.CompressionStream.deflate-raw 📋Chrome6/21/2022 Firefox5/9/2023322
api.CompressionStream.CompressionStream.gzip 📋Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.readable 📋Chrome2/4/2020 Firefox5/9/20231190
api.CompressionStream.writable 📋Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream 📋Chrome2/4/2020 Firefox5/9/20231190
Node.js: Available as a part of the stream/web module.
api.DecompressionStream.DecompressionStream 📋Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.DecompressionStream.deflate 📋Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.DecompressionStream.deflate-raw 📋Chrome6/21/2022 Firefox5/9/2023322
api.DecompressionStream.DecompressionStream.gzip 📋Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.readable 📋Chrome2/4/2020 Firefox5/9/20231190
api.DecompressionStream.writable 📋Chrome2/4/2020 Firefox5/9/20231190
api.OffscreenCanvasRenderingContext2D.reset 📋Chrome3/1/2022 Firefox5/9/2023434
api.RTCPeerConnection.connectionState 📋Chrome1/29/2019 Firefox5/9/20231561
api.RTCPeerConnection.connectionstatechange_event 📋Chrome1/29/2019 Firefox5/9/20231561
api.RTCPeerConnection.sctp 📋Chrome7/30/2019 Firefox5/9/20231379
api.RTCRtpReceiver.getCapabilities_static 📋Chrome6/5/2017 Firefox5/9/20232164
api.RTCRtpSender.getCapabilities_static 📋Chrome9/4/2018 Firefox5/9/20231708
api.RTCRtpSender.setStreams 📋Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport 📋Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.maxChannels 📋Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.maxMessageSize 📋Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.state 📋Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.statechange_event Chrome7/30/2019 Firefox5/9/20231379
api.RTCSctpTransport.transport 📋Chrome7/30/2019 Firefox5/9/20231379
api.RTCStatsReport.type_media-source 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.id 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.kind 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.timestamp 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.trackIdentifier 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_media-source.type 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.dataChannelsClosed 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.dataChannelsOpened 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.id 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.timestamp 📋Chrome2/4/2020 Firefox5/9/20231190
api.RTCStatsReport.type_peer-connection.type 📋Chrome2/4/2020 Firefox5/9/20231190
api.HTMLInputElement.cancel_event 📋Firefox8/10/2021 Chrome5/2/2023630
api.Headers.getSetCookie 📋Firefox4/11/2023 Chrome5/2/202321
api.URLSearchParams.size 📋Firefox4/11/2023 Chrome5/2/202321

2023/4

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.createConicGradient 📋Chrome3/1/2022 Firefox4/11/2023406
Firefox: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.Firefox for Android: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.Safari: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.Safari on iOS: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.WebView on iOS: Implements an older version of the specification. The gradient starts from a line going vertically up from the center, like the equivalent CSS function.
api.CanvasRenderingContext2D.roundRect 📋Chrome3/1/2022 Firefox4/11/2023406
api.HTMLElement.inert 📋Chrome5/24/2022 Firefox4/11/2023322
api.OffscreenCanvasRenderingContext2D.roundRect 📋Chrome3/1/2022 Firefox4/11/2023406
api.Path2D.roundRect 📋Chrome3/1/2022 Firefox4/11/2023406
api.FormData.FormData.submitter Firefox3/14/2023 Chrome4/4/202321
api.createImageBitmap.options_imageOrientation_parameter.from-image Firefox3/14/2023 Chrome4/4/202321

2023/3

API First Browser Date Last Browser Date Days Notes
api.FileSystemDirectoryHandle 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.@@asyncIterator 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.entries 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.getDirectoryHandle 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.getFileHandle 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.keys 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.removeEntry 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.resolve 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemDirectoryHandle.values 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemFileHandle 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemFileHandle.createSyncAccessHandle 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemFileHandle.createWritable 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemFileHandle.getFile 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle.isSameEntry 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle.kind 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemHandle.name 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemSyncAccessHandle 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemSyncAccessHandle.close 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemSyncAccessHandle.close.sync_version Chrome11/29/2022 Firefox3/14/2023105
api.FileSystemSyncAccessHandle.flush 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemSyncAccessHandle.flush.sync_version Chrome11/29/2022 Firefox3/14/2023105
api.FileSystemSyncAccessHandle.getSize 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemSyncAccessHandle.getSize.sync_version Chrome11/29/2022 Firefox3/14/2023105
api.FileSystemSyncAccessHandle.read 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemSyncAccessHandle.truncate 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemSyncAccessHandle.truncate.sync_version Chrome11/29/2022 Firefox3/14/2023105
api.FileSystemSyncAccessHandle.write 📋Chrome5/24/2022 Firefox3/14/2023294
api.FileSystemWritableFileStream 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemWritableFileStream.seek 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemWritableFileStream.truncate 📋Chrome10/20/2020 Firefox3/14/2023875
api.FileSystemWritableFileStream.write 📋Chrome10/20/2020 Firefox3/14/2023875
api.HTMLElement.autocapitalize 📋Chrome4/17/2018 Firefox3/14/20231792
Chrome: Supported on HTMLInputElement and HTMLTextAreaElement only.Chrome Android: Supported on HTMLInputElement and HTMLTextAreaElement only.Opera: Supported on HTMLInputElement and HTMLTextAreaElement only.Opera Android: Supported on HTMLInputElement and HTMLTextAreaElement only.Safari on iOS: Supported on HTMLFormElement, HTMLInputElement, and HTMLTextAreaElement only.Samsung Internet: Supported on HTMLInputElement and HTMLTextAreaElement only.WebView Android: Supported on HTMLInputElement and HTMLTextAreaElement only.WebView on iOS: Supported on HTMLFormElement, HTMLInputElement, and HTMLTextAreaElement only.
api.HTMLElement.translate 📋Chrome5/15/2012 Firefox3/14/20233955
api.HTMLFormElement.rel 📋Chrome11/29/2022 Firefox3/14/2023105
api.HTMLFormElement.relList 📋Chrome11/29/2022 Firefox3/14/2023105
api.RTCStatsReport.type_inbound-rtp.trackIdentifier 📋Chrome9/2/2022 Firefox3/14/2023193
api.StorageManager.getDirectory 📋Chrome10/20/2020 Firefox3/14/2023875
api.CSSContainerRule.containerName 📋Firefox2/14/2023 Chrome3/7/202321
api.CSSContainerRule.containerQuery 📋Firefox2/14/2023 Chrome3/7/202321
api.CSSFontFeatureValuesRule.fontFamily 📋Firefox12/1/2014 Chrome3/7/20233018

2023/2

API First Browser Date Last Browser Date Days Notes
api.CSSContainerRule 📋Chrome9/2/2022 Firefox2/14/2023165
api.CSSPageRule.selectorText 📋Chrome12/11/2008 Firefox2/14/20235178
api.HTMLElement.autofocus 📋Chrome12/10/2019 Firefox2/14/20231162
Chrome: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Chrome Android: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Edge: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Firefox: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Firefox for Android: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Internet Explorer: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Quest Browser: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Opera: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Opera Android: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Safari: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Safari on iOS: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.Samsung Internet: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.WebView Android: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.WebView on iOS: Supported for HTMLButtonElement, HTMLInputElement, HTMLSelectElement, and HTMLTextAreaElement.
api.MathMLElement.autofocus 📋Chrome1/10/2023 Firefox2/14/202335
api.Permissions.permission_midi 📋Chrome5/19/2015 Firefox2/14/20232828
api.RTCPeerConnection.addTransceiver.init_sendEncodings_parameter Chrome9/4/2018 Firefox2/14/20231624
api.RTCRtpSender.getParameters.return_object_property_transactionId 📋Chrome9/4/2018 Firefox2/14/20231624
api.RTCRtpSender.setParameters.parameters_encodings_parameter.active Chrome9/4/2018 Firefox2/14/20231624
api.RTCRtpSender.setParameters.parameters_transactionId_parameter 📋Chrome9/4/2018 Firefox2/14/20231624
api.SVGElement.autofocus 📋Chrome12/10/2019 Firefox2/14/20231162
Firefox: Only supported on SVGGraphicsElement.Firefox for Android: Only supported on SVGGraphicsElement.
api.Window.deviceorientationabsolute_event 📋Chrome4/13/2016 Firefox2/14/20232498

2023/1

API First Browser Date Last Browser Date Days Notes
api.MathMLElement 📋Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.blur 📋Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.dataset 📋Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.focus 📋Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.style 📋Firefox12/10/2019 Chrome1/10/20231127
api.MathMLElement.tabIndex 📋Firefox12/10/2019 Chrome1/10/20231127
api.RTCStatsReport.type_candidate-pair.lastPacketReceivedTimestamp 📋Firefox9/28/2017 Chrome1/10/20231930
api.RTCStatsReport.type_candidate-pair.lastPacketSentTimestamp 📋Firefox9/28/2017 Chrome1/10/20231930

2022/12

API First Browser Date Last Browser Date Days Notes
api.HTMLSourceElement.height 📋Chrome4/13/2021 Firefox12/13/2022609
api.HTMLSourceElement.width 📋Chrome4/13/2021 Firefox12/13/2022609
api.MIDIAccess 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIAccess.inputs 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIAccess.outputs 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIAccess.statechange_event 📋Chrome5/19/2015 Firefox12/13/20222765
Firefox: The onstatechange event handler is supported, but the event never fires. See bug 1802149.
api.MIDIAccess.sysexEnabled 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIConnectionEvent 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIConnectionEvent.MIDIConnectionEvent 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIConnectionEvent.port 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInput 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInput.midimessage_event 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.@@iterator Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.entries Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.forEach Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.get Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.has Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.keys Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.size Chrome5/19/2015 Firefox12/13/20222765
api.MIDIInputMap.values Chrome5/19/2015 Firefox12/13/20222765
api.MIDIMessageEvent 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIMessageEvent.MIDIMessageEvent 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIMessageEvent.data 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutput 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutput.send 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.@@iterator Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.entries Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.forEach Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.get Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.has Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.keys Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.size Chrome5/19/2015 Firefox12/13/20222765
api.MIDIOutputMap.values Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.close 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.connection 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.id 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.manufacturer 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.name 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.open 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.state 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.statechange_event 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.type 📋Chrome5/19/2015 Firefox12/13/20222765
api.MIDIPort.version 📋Chrome5/19/2015 Firefox12/13/20222765
api.Navigator.requestMIDIAccess 📋Chrome5/19/2015 Firefox12/13/20222765
Firefox: API access is gated by installation of a site permission add-on (user prompt), secure context, and Permission Policy: midi.
api.Navigator.requestMIDIAccess.secure_context_required Chrome5/19/2015 Firefox12/13/20222765
api.OES_draw_buffers_indexed 📋Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendEquationSeparateiOES 📋Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendEquationiOES 📋Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendFuncSeparateiOES 📋Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.blendFunciOES 📋Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.colorMaskiOES 📋Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.disableiOES 📋Chrome3/29/2022 Firefox12/13/2022259
api.OES_draw_buffers_indexed.enableiOES 📋Chrome3/29/2022 Firefox12/13/2022259

2022/11

API First Browser Date Last Browser Date Days Notes
api.HTMLMediaElement.srcObject 📋Firefox11/3/2015 Chrome11/29/20222583
Chrome: Support added for MediaSourceHandle objects transferred from dedicated workers where they were obtained from MediaSource.handle (see bug 40591101).Chrome: Support added for MediaStream objects (see bug 41186131).Chrome Android: Support added for MediaSourceHandle objects transferred from dedicated workers where they were obtained from MediaSource.handle (see bug 40591101).Chrome Android: Support added for MediaStream objects (see bug 41186131).Edge: Support added for MediaSourceHandle objects transferred from dedicated workers where they were obtained from MediaSource.handle (see bug 40591101).Edge: Support added for MediaStream objects (see bug 41186131).Firefox: Only supports MediaStream objects (see bug 886194).Firefox for Android: Only supports MediaStream objects (see bug 886194).Quest Browser: Support added for MediaStream objects (see bug 41186131).Opera: Support added for MediaSourceHandle objects transferred from dedicated workers where they were obtained from MediaSource.handle (see bug 40591101).Opera: Support added for MediaStream objects (see bug 41186131).Opera Android: Support added for MediaSourceHandle objects transferred from dedicated workers where they were obtained from MediaSource.handle (see bug 40591101).Opera Android: Support added for MediaStream objects (see bug 41186131).Samsung Internet: Support added for MediaSourceHandle objects transferred from dedicated workers where they were obtained from MediaSource.handle (see bug 40591101).Samsung Internet: Support added for MediaStream objects (see bug 41186131).WebView Android: Support added for MediaSourceHandle objects transferred from dedicated workers where they were obtained from MediaSource.handle (see bug 40591101).WebView Android: Support added for MediaStream objects (see bug 41186131).
api.CSSFontPaletteValuesRule 📋Chrome4/26/2022 Firefox11/15/2022203
api.CSSFontPaletteValuesRule.basePalette 📋Chrome4/26/2022 Firefox11/15/2022203
api.CSSFontPaletteValuesRule.fontFamily 📋Chrome4/26/2022 Firefox11/15/2022203
api.CSSFontPaletteValuesRule.name 📋Chrome4/26/2022 Firefox11/15/2022203
api.CSSFontPaletteValuesRule.overrideColors 📋Chrome4/26/2022 Firefox11/15/2022203

2022/10

API First Browser Date Last Browser Date Days Notes
api.Element.checkVisibility 📋Chrome9/2/2022 Firefox10/18/202246
api.Element.checkVisibility.options_checkOpacity_parameter 📋Chrome9/2/2022 Firefox10/18/202246
api.Element.checkVisibility.options_checkVisibilityCSS_parameter 📋Chrome9/2/2022 Firefox10/18/202246
api.HTMLMetaElement.media 📋Chrome8/31/2021 Firefox10/18/2022413
api.RTCStatsReport.type_inbound-rtp.audioLevel 📋Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.concealmentEvents 📋Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.fecPacketsDiscarded 📋Chrome4/7/2020 Firefox10/18/2022924
api.RTCStatsReport.type_inbound-rtp.fecPacketsReceived 📋Chrome4/7/2020 Firefox10/18/2022924
api.RTCStatsReport.type_inbound-rtp.headerBytesReceived 📋Chrome2/4/2020 Firefox10/18/2022987
api.RTCStatsReport.type_inbound-rtp.insertedSamplesForDeceleration 📋Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.lastPacketReceivedTimestamp 📋Chrome2/4/2020 Firefox10/18/2022987
api.RTCStatsReport.type_inbound-rtp.qpSum 📋Chrome12/10/2019 Firefox10/18/20221043
api.RTCStatsReport.type_inbound-rtp.removedSamplesForAcceleration 📋Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.totalAudioEnergy 📋Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.totalDecodeTime 📋Chrome12/10/2019 Firefox10/18/20221043
api.RTCStatsReport.type_inbound-rtp.totalInterFrameDelay 📋Chrome12/10/2019 Firefox10/18/20221043
api.RTCStatsReport.type_inbound-rtp.totalProcessingDelay 📋Chrome6/21/2022 Firefox10/18/2022119
api.RTCStatsReport.type_inbound-rtp.totalSamplesDuration 📋Chrome10/20/2020 Firefox10/18/2022728
api.RTCStatsReport.type_inbound-rtp.totalSquaredInterFrameDelay 📋Chrome12/10/2019 Firefox10/18/20221043
api.RTCStatsReport.type_remote-inbound-rtp.fractionLost 📋Chrome5/25/2021 Firefox10/18/2022511
api.RTCStatsReport.type_remote-inbound-rtp.roundTripTimeMeasurements 📋Chrome5/25/2021 Firefox10/18/2022511
api.RTCStatsReport.type_remote-inbound-rtp.totalRoundTripTime 📋Chrome5/25/2021 Firefox10/18/2022511

2022/9

API First Browser Date Last Browser Date Days Notes
api.FontFace.worker_support Chrome9/4/2018 Firefox9/20/20221477
api.FontFaceSet.worker_support Chrome9/4/2018 Firefox9/20/20221477
api.HTMLCanvasElement.transferControlToOffscreen 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.OffscreenCanvas 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.convertToBlob 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.convertToBlob.option_type_parameter_webp Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.getContext 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.getContext.2d_context Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.getContext.bitmaprenderer_context Chrome7/30/2019 Firefox9/20/20221148
api.OffscreenCanvas.getContext.webgl2_context Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.getContext.webgl_context Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.height 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.transferToImageBitmap 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvas.width 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.arc 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.arcTo 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.beginPath 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.bezierCurveTo 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.canvas 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.clearRect 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.clip 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.closePath 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.createConicGradient 📋Chrome3/1/2022 Firefox9/20/2022203
api.OffscreenCanvasRenderingContext2D.createImageData 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.createLinearGradient 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.createPattern 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.createRadialGradient 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.direction 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.drawImage 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.ellipse 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.fill 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.fillRect 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.fillStyle 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.fillText 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.font 📋Chrome9/4/2018 Firefox9/20/20221477
Safari: The font-weight can be set, but is not reflected back (see bug 284115).Safari on iOS: The font-weight can be set, but is not reflected back (see bug 284115).WebView on iOS: The font-weight can be set, but is not reflected back (see bug 284115).
api.OffscreenCanvasRenderingContext2D.fontKerning 📋Chrome3/1/2022 Firefox9/20/2022203
api.OffscreenCanvasRenderingContext2D.getImageData 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.getLineDash 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.getTransform 📋Chrome2/4/2020 Firefox9/20/2022959
api.OffscreenCanvasRenderingContext2D.globalAlpha 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.globalCompositeOperation 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.imageSmoothingEnabled 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.isPointInPath 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.isPointInStroke 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.lineCap 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.lineDashOffset 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.lineJoin 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.lineTo 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.lineWidth 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.measureText 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.miterLimit 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.moveTo 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.putImageData 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.quadraticCurveTo 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.rect 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.resetTransform 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.restore 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.rotate 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.save 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.scale 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.setLineDash 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.setTransform 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.shadowBlur 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.shadowColor 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.shadowOffsetX 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.shadowOffsetY 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.stroke 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.strokeRect 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.strokeStyle 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.strokeText 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.textAlign 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.textBaseline 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.transform 📋Chrome9/4/2018 Firefox9/20/20221477
api.OffscreenCanvasRenderingContext2D.translate 📋Chrome9/4/2018 Firefox9/20/20221477
api.TextDecoderStream 📋Chrome12/4/2018 Firefox9/20/20221386
Node.js: Available as a part of the stream/web module.
api.TextDecoderStream.TextDecoderStream 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.encoding 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.fatal 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.ignoreBOM 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.readable 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextDecoderStream.writable 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream 📋Chrome12/4/2018 Firefox9/20/20221386
Node.js: Available as a part of the stream/web module.
api.TextEncoderStream.TextEncoderStream 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream.encoding 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream.readable 📋Chrome12/4/2018 Firefox9/20/20221386
api.TextEncoderStream.writable 📋Chrome12/4/2018 Firefox9/20/20221386
api.WorkerGlobalScope.fonts 📋Chrome9/4/2018 Firefox9/20/20221477
api.ReadableStreamBYOBReader.releaseLock.reject_pending_read_request Firefox6/28/2022 Chrome9/2/202266
Chrome: Before version 105, releaseLock() throws instead of rejecting.Chrome Android: Before version 105, releaseLock() throws instead of rejecting.Edge: Before version 105, releaseLock() throws instead of rejecting.Opera: Before version 91, releaseLock() throws instead of rejecting.Opera Android: Before version 72, releaseLock() throws instead of rejecting.Samsung Internet: Before version 20.0, releaseLock() throws instead of rejecting.WebView Android: Before version 105, releaseLock() throws instead of rejecting.
api.ReadableStreamDefaultReader.releaseLock.reject_pending_read_request Firefox6/28/2022 Chrome9/2/202266
Chrome: Before version 105, releaseLock() throws instead of rejecting.Chrome Android: Before version 105, releaseLock() throws instead of rejecting.Edge: Before version 105, releaseLock() throws instead of rejecting.Opera: Before version 91, releaseLock() throws instead of rejecting.Opera Android: Before version 72, releaseLock() throws instead of rejecting.Samsung Internet: Before version 20.0, releaseLock() throws instead of rejecting.WebView Android: Before version 105, releaseLock() throws instead of rejecting.

2022/8

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.fontKerning 📋Chrome3/1/2022 Firefox8/23/2022175
api.RTCStatsReport.type_inbound-rtp.concealedSamples 📋Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.jitterBufferDelay 📋Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.jitterBufferEmittedCount 📋Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.silentConcealedSamples 📋Chrome10/20/2020 Firefox8/23/2022672
api.RTCStatsReport.type_inbound-rtp.totalSamplesReceived 📋Chrome10/20/2020 Firefox8/23/2022672
api.SVGStyleElement.disabled 📋Chrome9/1/2015 Firefox8/23/20222548

2022/7

API First Browser Date Last Browser Date Days Notes
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 📋Chrome10/22/2019 Firefox7/26/20221008
api.ReadableStream.transferable 📋Chrome11/17/2020 Firefox7/26/2022616
api.TransformStream.transferable 📋Chrome11/17/2020 Firefox7/26/2022616
api.WritableStream.transferable 📋Chrome11/17/2020 Firefox7/26/2022616
api.caches.secure_context_required Chrome3/6/2018 Firefox7/26/20221603

2022/6

API First Browser Date Last Browser Date Days Notes
api.RTCStatsReport.type_outbound-rtp.totalEncodeTime 📋Chrome2/4/2020 Firefox6/28/2022875
api.ReadableByteStreamController 📋Chrome3/2/2021 Firefox6/28/2022483
Deno: ReadableByteStreamController is not exposed on the global scope.Node.js: Before 18.10.0, handling a BYOB pull request from a released reader is not supported.Node.js: Available as a part of the stream/web module.
api.ReadableByteStreamController.byobRequest 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableByteStreamController.close 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableByteStreamController.desiredSize 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableByteStreamController.enqueue 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableByteStreamController.error 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStream.pipeThrough 📋Chrome6/5/2017 Firefox6/28/20221849
api.ReadableStreamBYOBReader 📋Chrome3/2/2021 Firefox6/28/2022483
Node.js: Available as a part of the stream/web module.
api.ReadableStreamBYOBReader.ReadableStreamBYOBReader 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStreamBYOBReader.cancel 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStreamBYOBReader.closed 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStreamBYOBReader.read 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStreamBYOBReader.releaseLock 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStreamBYOBRequest 📋Chrome3/2/2021 Firefox6/28/2022483
Node.js: Available as a part of the stream/web module.
api.ReadableStreamBYOBRequest.respond 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStreamBYOBRequest.respondWithNewView 📋Chrome3/2/2021 Firefox6/28/2022483
api.ReadableStreamBYOBRequest.view 📋Chrome3/2/2021 Firefox6/28/2022483
api.TransformStream 📋Chrome5/29/2018 Firefox6/28/20221491
Node.js: Available as a part of the stream/web module.
api.TransformStream.TransformStream 📋Chrome5/29/2018 Firefox6/28/20221491
api.TransformStream.readable 📋Chrome5/29/2018 Firefox6/28/20221491
api.TransformStream.writable 📋Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController 📋Chrome5/29/2018 Firefox6/28/20221491
Deno: TransformStreamDefaultController is not exposed on the global scope.Node.js: Available as a part of the stream/web module.
api.TransformStreamDefaultController.desiredSize 📋Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController.enqueue 📋Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController.error 📋Chrome5/29/2018 Firefox6/28/20221491
api.TransformStreamDefaultController.terminate 📋Chrome5/29/2018 Firefox6/28/20221491

2022/5

API First Browser Date Last Browser Date Days Notes
api.CSSStyleSheet.CSSStyleSheet 📋Chrome3/12/2019 Firefox5/31/20221176
api.CSSStyleSheet.replace 📋Chrome3/12/2019 Firefox5/31/20221176
Firefox: Before Firefox 121, when calling replace() repeatedly, the style is applied, but the change is not reflected in the CSS Object Model. See bug 1864815.Firefox for Android: Before Firefox for Android 121, when calling replace() repeatedly, the style is applied, but the change is not reflected in the CSS Object Model. See bug 1864815.
api.CSSStyleSheet.replaceSync 📋Chrome3/12/2019 Firefox5/31/20221176
api.CanvasRenderingContext2D.direction 📋Chrome9/10/2019 Firefox5/31/2022994
api.DOMException.serializable_object 📋Chrome9/10/2019 Firefox5/31/2022994
api.Document.adoptedStyleSheets 📋Chrome3/12/2019 Firefox5/31/20221176
api.Document.adoptedStyleSheets.mutable 📋Chrome3/1/2022 Firefox5/31/202291
api.HTMLInputElement.showPicker 📋Chrome3/1/2022 Firefox5/31/202291
api.HTMLInputElement.showPicker.color_input Chrome3/1/2022 Firefox5/31/202291
api.HTMLInputElement.showPicker.date_input Chrome3/1/2022 Firefox5/31/202291
api.HTMLInputElement.showPicker.datetime_local_input Chrome3/1/2022 Firefox5/31/202291
api.HTMLInputElement.showPicker.file_input Chrome3/1/2022 Firefox5/31/202291
api.HTMLMediaElement.preservesPitch 📋Chrome10/20/2020 Firefox5/31/2022588
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 📋Chrome7/30/2019 Firefox5/31/20221036
api.PerformanceMark.detail 📋Chrome10/22/2019 Firefox5/31/2022952
api.RTCRtpSender.setParameters.parameters_encodings_parameter.maxFramerate 📋Chrome4/7/2020 Firefox5/31/2022784
Firefox: Zero is treated as 'no fps limit' (see bug 1611957).Firefox for Android: Zero is treated as 'no fps limit' (see bug 1611957).
api.RTCStatsReport.type_inbound-rtp.frameHeight 📋Chrome10/20/2020 Firefox5/31/2022588
api.RTCStatsReport.type_inbound-rtp.frameWidth 📋Chrome10/20/2020 Firefox5/31/2022588
api.RTCStatsReport.type_inbound-rtp.framesPerSecond 📋Chrome10/20/2020 Firefox5/31/2022588
api.RTCStatsReport.type_inbound-rtp.framesReceived 📋Chrome10/20/2020 Firefox5/31/2022588
api.RTCStatsReport.type_outbound-rtp.frameHeight 📋Chrome7/27/2020 Firefox5/31/2022673
api.RTCStatsReport.type_outbound-rtp.frameWidth 📋Chrome7/27/2020 Firefox5/31/2022673
api.RTCStatsReport.type_outbound-rtp.framesSent 📋Chrome7/27/2020 Firefox5/31/2022673
api.ShadowRoot.adoptedStyleSheets 📋Chrome3/12/2019 Firefox5/31/20221176
api.AudioContext.outputLatency 📋Firefox10/22/2019 Chrome5/24/2022945
api.RTCStatsReport.type_outbound-rtp.headerBytesSent 📋Chrome2/4/2020 Firefox5/3/2022819
api.RTCStatsReport.type_outbound-rtp.retransmittedBytesSent 📋Chrome2/4/2020 Firefox5/3/2022819
api.RTCStatsReport.type_outbound-rtp.retransmittedPacketsSent 📋Chrome2/4/2020 Firefox5/3/2022819
api.ReadableStream.pipeTo 📋Chrome6/5/2017 Firefox5/3/20221793
api.ReadableStreamDefaultReader.ReadableStreamDefaultReader 📋Chrome10/22/2019 Firefox5/3/2022924
api.WritableStream 📋Chrome6/5/2017 Firefox5/3/20221793
Node.js: Available as a part of the stream/web module.
api.WritableStream.WritableStream 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStream.abort 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStream.close 📋Chrome4/7/2020 Firefox5/3/2022756
api.WritableStream.getWriter 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStream.locked 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultController 📋Chrome6/5/2017 Firefox5/3/20221793
Node.js: Available as a part of the stream/web module.
api.WritableStreamDefaultController.error 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultController.signal 📋Chrome2/1/2022 Firefox5/3/202291
api.WritableStreamDefaultWriter 📋Chrome6/5/2017 Firefox5/3/20221793
Node.js: Available as a part of the stream/web module.
api.WritableStreamDefaultWriter.WritableStreamDefaultWriter 📋Chrome10/22/2019 Firefox5/3/2022924
api.WritableStreamDefaultWriter.abort 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.close 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.closed 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.desiredSize 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.ready 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.releaseLock 📋Chrome6/5/2017 Firefox5/3/20221793
api.WritableStreamDefaultWriter.write 📋Chrome6/5/2017 Firefox5/3/20221793

2022/4

API First Browser Date Last Browser Date Days Notes
api.MediaCapabilities.encodingInfo 📋Firefox10/23/2018 Chrome4/26/20221281
Firefox: The webrtc value of the type option is named transmission.Firefox for Android: The webrtc value of the type option is named transmission.
api.DedicatedWorkerGlobalScope.cancelAnimationFrame 📋Chrome9/4/2018 Firefox4/5/20221309
api.DedicatedWorkerGlobalScope.requestAnimationFrame 📋Chrome9/4/2018 Firefox4/5/20221309
Chrome: Not supported in nested Web Workers. See bug 41483010.Chrome Android: Not supported in nested Web Workers. See bug 41483010.Edge: Not supported in nested Web Workers. See bug 41483010.Quest Browser: Not supported in nested Web Workers. See bug 41483010.Opera: Not supported in nested Web Workers. See bug 41483010.Opera Android: Not supported in nested Web Workers. See bug 41483010.Samsung Internet: Not supported in nested Web Workers. See bug 41483010.
api.FetchEvent.preloadResponse 📋Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager 📋Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.disable 📋Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.enable 📋Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.getState 📋Chrome6/5/2017 Firefox4/5/20221765
api.NavigationPreloadManager.setHeaderValue 📋Chrome6/5/2017 Firefox4/5/20221765
api.Navigator.pdfViewerEnabled 📋Chrome9/21/2021 Firefox4/5/2022196
api.RTCPeerConnection.setConfiguration 📋Chrome1/20/2016 Firefox4/5/20222267
api.ServiceWorkerRegistration.navigationPreload 📋Chrome6/5/2017 Firefox4/5/20221765

2022/3

API First Browser Date Last Browser Date Days Notes
api.AbortSignal.throwIfAborted 📋Firefox2/8/2022 Chrome3/29/202249
api.Window.moveTo.relative-multi-screen Firefox11/9/2004 Chrome3/29/20226349
Chrome: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Chrome Android: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Edge: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Firefox: Multi-screen coordinates are used, but windows are clamped to their existing displays.Firefox for Android: Multi-screen coordinates are used, but windows are clamped to their existing displays.Quest Browser: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera Android: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.Samsung Internet: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView Android: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.open.relative-multi-screen Firefox11/9/2004 Chrome3/29/20226349
Chrome: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Chrome Android: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Edge: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Quest Browser: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Opera Android: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.Samsung Internet: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView Android: Without the window-management permission, multi-screen coordinates are used, but windows are clamped to their existing displays.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.screenLeft.relative-multi-screen Firefox12/11/2018 Chrome3/29/20221204
Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.screenTop.relative-multi-screen Firefox12/11/2018 Chrome3/29/20221204
Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.screenX.relative-multi-screen Firefox11/9/2004 Chrome3/29/20226349
Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Window.screenY.relative-multi-screen Firefox12/11/2018 Chrome3/29/20221204
Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.ElementInternals.checkValidity 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.form 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.labels 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.reportValidity 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.setFormValue 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.setValidity 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.validationMessage 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.validity 📋Chrome9/10/2019 Firefox3/8/2022910
api.ElementInternals.willValidate 📋Chrome9/10/2019 Firefox3/8/2022910
api.HTMLDialogElement 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLDialogElement.cancel_event 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLDialogElement.close 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLDialogElement.close_event 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLDialogElement.open 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLDialogElement.returnValue 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLDialogElement.show 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLDialogElement.showModal 📋Chrome8/26/2014 Firefox3/8/20222751
api.HTMLElement.outerText 📋Chrome12/11/2008 Firefox3/8/20224835
api.RTCStatsReport.type_codec 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.channels 📋Chrome5/19/2020 Firefox3/8/2022658
api.RTCStatsReport.type_codec.clockRate 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.id 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.mimeType 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.payloadType 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.sdpFmtpLine 📋Chrome5/19/2020 Firefox3/8/2022658
api.RTCStatsReport.type_codec.timestamp 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_codec.transportId 📋Chrome3/2/2021 Firefox3/8/2022371
api.RTCStatsReport.type_codec.type 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_inbound-rtp.codecId 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_outbound-rtp.codecId 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_remote-inbound-rtp.codecId 📋Chrome2/4/2020 Firefox3/8/2022763
api.RTCStatsReport.type_remote-outbound-rtp.codecId 📋Chrome5/25/2021 Firefox3/8/2022287
api.console.profileEnd_static Chrome5/25/2010 Firefox3/8/20224305
Firefox: The method can be called, but the marker does not show up in the performance profile.Firefox for Android: The method can be called, but the marker does not show up in the performance profile.
api.console.profile_static Chrome5/25/2010 Firefox3/8/20224305
Firefox: The method can be called, but the marker does not show up in the performance profile.Firefox for Android: The method can be called, but the marker does not show up in the performance profile.
api.console.timeStamp_static Chrome10/25/2011 Firefox3/8/20223787
Firefox: The method can be called, but the marker does not show up in the performance profile.Firefox for Android: The method can be called, but the marker does not show up in the performance profile.
api.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
api.CSSImportRule.layerName 📋Firefox2/8/2022 Chrome3/1/202221
api.CSSLayerBlockRule 📋Firefox2/8/2022 Chrome3/1/202221
api.CSSLayerBlockRule.name 📋Firefox2/8/2022 Chrome3/1/202221
api.CSSLayerStatementRule 📋Firefox2/8/2022 Chrome3/1/202221
api.CSSLayerStatementRule.nameList 📋Firefox2/8/2022 Chrome3/1/202221
api.HTMLCanvasElement.getContext.2d_context.options_willReadFrequently_parameter 📋Firefox3/18/2014 Chrome3/1/20222905

2022/2

API First Browser Date Last Browser Date Days Notes
api.AbortController.abort.reason_parameter 📋Chrome2/1/2022 Firefox2/8/20227
api.AbortSignal.abort_static.reason_parameter 📋Chrome2/1/2022 Firefox2/8/20227
api.AbortSignal.reason 📋Chrome2/1/2022 Firefox2/8/20227
api.ImageBitmapRenderingContext.canvas 📋Chrome4/17/2018 Firefox2/8/20221393
api.BarProp.visible.returns_popup Firefox1/11/2022 Chrome2/1/202221
api.Window.open.features_parameter_popup Firefox1/11/2022 Chrome2/1/202221
api.structuredClone 📋Firefox11/2/2021 Chrome2/1/202291
Deno: The message parameter does not support cloning Blob values.Deno: The message parameter does not support cloning Blob values.Deno: The transfer parameter does not accept ArrayBuffer items. Passing an ArrayBuffer results in an error being thrown.

2022/1

API First Browser Date Last Browser Date Days Notes
api.HTMLCanvasElement.toBlob.type_parameter_webp Chrome4/13/2016 Firefox1/11/20222099
api.HTMLCanvasElement.toDataURL.type_parameter_webp Chrome2/8/2012 Firefox1/11/20223625
api.Lock 📋Chrome9/4/2018 Firefox1/11/20221225
api.Lock.mode 📋Chrome9/4/2018 Firefox1/11/20221225
api.Lock.name 📋Chrome9/4/2018 Firefox1/11/20221225
api.LockManager 📋Chrome9/4/2018 Firefox1/11/20221225
api.LockManager.query 📋Chrome9/4/2018 Firefox1/11/20221225
api.LockManager.request 📋Chrome9/4/2018 Firefox1/11/20221225
api.Navigator.canShare.data_text_parameter 📋Chrome3/2/2021 Firefox1/11/2022315
api.Navigator.locks 📋Chrome9/4/2018 Firefox1/11/20221225
api.PushSubscription.expirationTime 📋Chrome7/25/2017 Firefox1/11/20221631
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.RTCStatsReport.type_inbound-rtp.packetsDiscarded 📋Chrome9/21/2021 Firefox1/11/2022112
api.RTCStatsReport.type_remote-inbound-rtp.roundTripTime 📋Chrome2/4/2020 Firefox1/11/2022707
api.WorkerNavigator.locks 📋Chrome9/4/2018 Firefox1/11/20221225
api.PermissionStatus.name 📋Firefox10/5/2021 Chrome1/4/202291

2021/12

API First Browser Date Last Browser Date Days Notes
api.Crypto.randomUUID 📋Chrome7/20/2021 Firefox12/7/2021140
Node.js: Since 14.17.0 and 15.6.0, a similar method is available via the crypto module.
api.HTMLElement.inputMode 📋Chrome4/17/2018 Firefox12/7/20211330

2021/11

API First Browser Date Last Browser Date Days Notes
api.HTMLScriptElement.supports_static 📋Firefox11/2/2021 Chrome11/15/202113
api.Element.attachShadow.options_delegatesFocus_parameter 📋Chrome8/31/2016 Firefox11/2/20211889
api.HTMLElement.enterKeyHint 📋Chrome9/10/2019 Firefox11/2/2021784
api.ShadowRoot.delegatesFocus 📋Chrome8/31/2016 Firefox11/2/20211889

2021/10

API First Browser Date Last Browser Date Days Notes
api.reportError 📋Firefox10/5/2021 Chrome10/19/202114
api.Document.securitypolicyviolation_event 📋Chrome7/30/2019 Firefox10/5/2021798
api.ElementInternals 📋Chrome9/10/2019 Firefox10/5/2021756
api.ElementInternals.shadowRoot 📋Chrome1/19/2021 Firefox10/5/2021259
api.HTMLElement.attachInternals 📋Chrome9/10/2019 Firefox10/5/2021756
api.ResizeObserverEntry.devicePixelContentBoxSize 📋Chrome7/27/2020 Firefox10/5/2021435
api.SVGAnimationElement.beginEvent_event 📋Chrome5/20/2014 Firefox10/5/20212695
Chrome: The onbegin event handler property is not supported.Chrome Android: The onbegin event handler property is not supported.Firefox: The onbegin event handler property is not supported.Firefox for Android: The onbegin event handler property is not supported.Opera: The onbegin event handler property is not supported.Opera Android: The onbegin event handler property is not supported.Safari: The onbegin event handler property is not supported.Safari on iOS: The onbegin event handler property is not supported.Samsung Internet: The onbegin event handler property is not supported.WebView Android: The onbegin event handler property is not supported.WebView on iOS: The onbegin event handler property is not supported.
api.SVGAnimationElement.endEvent_event 📋Chrome5/20/2014 Firefox10/5/20212695
Chrome: The onend event handler property is not supported.Chrome Android: The onend event handler property is not supported.Firefox: The onend event handler property is not supported.Firefox for Android: The onend event handler property is not supported.Opera: The onend event handler property is not supported.Opera Android: The onend event handler property is not supported.Safari: The onend event handler property is not supported.Safari on iOS: The onend event handler property is not supported.Samsung Internet: The onend event handler property is not supported.WebView Android: The onend event handler property is not supported.WebView on iOS: The onend event handler property is not supported.
api.SVGAnimationElement.repeatEvent_event 📋Chrome5/20/2014 Firefox10/5/20212695
Chrome: The onrepeat event handler property is not supported.Chrome Android: The onrepeat event handler property is not supported.Firefox: The onrepeat event handler property is not supported.Firefox for Android: The onrepeat event handler property is not supported.Opera: The onrepeat event handler property is not supported.Opera Android: The onrepeat event handler property is not supported.Safari: The onrepeat event handler property is not supported.Safari on iOS: The onrepeat event handler property is not supported.Samsung Internet: The onrepeat event handler property is not supported.WebView Android: The onrepeat event handler property is not supported.WebView on iOS: The onrepeat event handler property is not supported.
api.createImageBitmap.options_imageOrientation_parameter Chrome7/20/2016 Firefox10/5/20211903
api.createImageBitmap.options_premultiplyAlpha_parameter Chrome7/20/2016 Firefox10/5/20211903
Safari: If the source image is an ImageData object, then the premultiplyAlpha option does nothing. See bug 237082.Safari on iOS: If the source image is an ImageData object, then the premultiplyAlpha option does nothing. See bug 237082.WebView on iOS: If the source image is an ImageData object, then the premultiplyAlpha option does nothing. See bug 237082.

2021/9

API First Browser Date Last Browser Date Days Notes
api.CustomElementRegistry.define.disabledFeatures_static_property Chrome9/10/2019 Firefox9/7/2021728
api.HTMLSlotElement.assign 📋Chrome7/20/2021 Firefox9/7/202149
Chrome: Before Chrome 95, the method accepted any Node instead of just Element and Text.Chrome: Accepted sequence<Node> instead of (Element or Text)....Chrome Android: Before Chrome Android 95, the method accepted any Node instead of just Element and Text.Chrome Android: Accepted sequence<Node> instead of (Element or Text)....Edge: Before Edge 95, the method accepted any Node instead of just Element and Text.Edge: Accepted sequence<Node> instead of (Element or Text)....Quest Browser: Before Quest Browser 18.0, the method accepted any Node instead of just Element and Text.Quest Browser: Accepted sequence<Node> instead of (Element or Text)....Opera: Before Opera 81, the method accepted any Node instead of just Element and Text.Opera: Accepted sequence<Node> instead of (Element or Text)....Opera Android: Before Opera Android 67, the method accepted any Node instead of just Element and Text.Opera Android: Accepted sequence<Node> instead of (Element or Text)....Samsung Internet: Before Samsung Internet 17.0, the method accepted any Node instead of just Element and Text.Samsung Internet: Accepted sequence<Node> instead of (Element or Text)....WebView Android: Before WebView Android 95, the method accepted any Node instead of just Element and Text.WebView Android: Accepted sequence<Node> instead of (Element or Text)....
api.ResizeObserverEntry.borderBoxSize 📋Chrome7/27/2020 Firefox9/7/2021407
Firefox: Implemented as a single object representing a content box size, rather than an array of content box size objects.Firefox for Android: Implemented as a single object representing a content box size, rather than an array of content box size objects.
api.ResizeObserverEntry.contentBoxSize 📋Chrome7/27/2020 Firefox9/7/2021407
Firefox: Implemented as a single object representing a content box size, rather than an array of content box size objects.Firefox for Android: Implemented as a single object representing a content box size, rather than an array of content box size objects.
api.ShadowRoot.slotAssignment 📋Chrome10/20/2020 Firefox9/7/2021322

2021/8

API First Browser Date Last Browser Date Days Notes
api.AbortSignal.abort_static 📋Firefox4/19/2021 Chrome8/31/2021134
api.EXT_texture_compression_bptc 📋Firefox7/9/2019 Chrome8/31/2021784
Chrome: Only supported on macOS.Edge: Only supported on macOS.Opera: Only supported on macOS.
api.EXT_texture_compression_rgtc 📋Firefox1/29/2019 Chrome8/31/2021945
Chrome: Only supported on macOS.Edge: Only supported on macOS.Firefox: Only supported on macOS.Opera: Only supported on macOS.
api.OVR_multiview2 📋Firefox12/10/2019 Chrome8/31/2021630
Chrome: Only supported on Windows with ANGLE.Edge: Only supported on Windows with ANGLE.Firefox: Only supported on Windows with ANGLE.Firefox for Android: Only supported on Windows with ANGLE.Opera: Only supported on Windows with ANGLE.
api.OVR_multiview2.framebufferTextureMultiviewOVR 📋Firefox12/10/2019 Chrome8/31/2021630
api.RTCStatsReport.type_outbound-rtp.nackCount 📋Firefox8/8/2017 Chrome8/31/20211484
api.Gamepad.secure_context_required Chrome10/20/2020 Firefox8/10/2021294
api.GamepadButton.secure_context_required Chrome10/20/2020 Firefox8/10/2021294
api.GamepadEvent.secure_context_required Chrome10/20/2020 Firefox8/10/2021294
api.GamepadHapticActuator.secure_context_required Chrome10/20/2020 Firefox8/10/2021294
api.Navigator.getGamepads.secure_context_required Chrome10/20/2020 Firefox8/10/2021294
api.VisualViewport 📋Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.height 📋Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.offsetLeft 📋Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.offsetTop 📋Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.pageLeft 📋Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.pageTop 📋Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.resize_event 📋Chrome10/17/2017 Firefox8/10/20211393
Chrome: The onresize event handler property is not supported.Chrome Android: The onresize event handler property is not supported.Opera: The onresize event handler property is not supported.Opera Android: The onresize event handler property is not supported.WebView Android: The onresize event handler property is not supported.
api.VisualViewport.scale 📋Chrome9/5/2017 Firefox8/10/20211435
api.VisualViewport.scroll_event 📋Chrome10/17/2017 Firefox8/10/20211393
Chrome: The onscroll event handler property is not supported.Chrome Android: The onscroll event handler property is not supported.Opera: The onscroll event handler property is not supported.Opera Android: The onscroll event handler property is not supported.WebView Android: The onscroll event handler property is not supported.
api.VisualViewport.width 📋Chrome9/5/2017 Firefox8/10/20211435
api.Window.visualViewport 📋Chrome9/5/2017 Firefox8/10/20211435

2021/7

API First Browser Date Last Browser Date Days Notes
api.Navigator.registerProtocolHandler.scheme_parameter_matrix Firefox7/13/2021 Chrome7/20/20217
api.WheelEvent.wheelDelta Chrome12/11/2008 Firefox7/13/20214597
api.WheelEvent.wheelDeltaX Chrome12/11/2008 Firefox7/13/20214597
api.WheelEvent.wheelDeltaY Chrome12/11/2008 Firefox7/13/20214597

2021/6

API First Browser Date Last Browser Date Days Notes
api.EventCounts 📋Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.@@iterator Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.entries Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.forEach Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.get Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.has Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.keys Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.size Chrome8/25/2020 Firefox6/1/2021280
api.EventCounts.values Chrome8/25/2020 Firefox6/1/2021280
api.FontFace.ascentOverride 📋Chrome11/17/2020 Firefox6/1/2021196
api.FontFace.descentOverride 📋Chrome11/17/2020 Firefox6/1/2021196
api.FontFace.lineGapOverride 📋Chrome11/17/2020 Firefox6/1/2021196
api.Performance.eventCounts 📋Chrome8/25/2020 Firefox6/1/2021280
api.PerformanceEventTiming 📋Chrome7/30/2019 Firefox6/1/2021672
api.PerformanceEventTiming.cancelable 📋Chrome7/30/2019 Firefox6/1/2021672
api.PerformanceEventTiming.processingEnd 📋Chrome7/30/2019 Firefox6/1/2021672
api.PerformanceEventTiming.processingStart 📋Chrome7/30/2019 Firefox6/1/2021672
api.PerformanceEventTiming.target 📋Chrome8/25/2020 Firefox6/1/2021280
api.PerformanceEventTiming.toJSON 📋Chrome7/30/2019 Firefox6/1/2021672
api.PointerEvent.getPredictedEvents 📋Chrome9/10/2019 Firefox6/1/2021630

2021/5

API First Browser Date Last Browser Date Days Notes
api.CSSCounterStyleRule 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.additiveSymbols 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.fallback 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.name 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.negative 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.pad 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.prefix 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.range 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.speakAs 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.suffix 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.symbols 📋Firefox10/14/2014 Chrome5/25/20212415
api.CSSCounterStyleRule.system 📋Firefox10/14/2014 Chrome5/25/20212415
api.RTCStatsReport.type_inbound-rtp.remoteId 📋Firefox7/9/2019 Chrome5/25/2021686
api.RTCStatsReport.type_local-candidate.address 📋Firefox1/29/2019 Chrome5/25/2021847
api.RTCStatsReport.type_remote-candidate.address 📋Firefox1/29/2019 Chrome5/25/2021847
api.RTCStatsReport.type_remote-outbound-rtp 📋Firefox2/4/2014 Chrome5/25/20212667
api.RTCStatsReport.type_remote-outbound-rtp.bytesSent 📋Firefox1/7/2020 Chrome5/25/2021504
api.RTCStatsReport.type_remote-outbound-rtp.id 📋Firefox1/7/2020 Chrome5/25/2021504
api.RTCStatsReport.type_remote-outbound-rtp.kind 📋Firefox10/23/2018 Chrome5/25/2021945
api.RTCStatsReport.type_remote-outbound-rtp.localId 📋Firefox7/9/2019 Chrome5/25/2021686
api.RTCStatsReport.type_remote-outbound-rtp.packetsSent 📋Firefox1/7/2020 Chrome5/25/2021504
api.RTCStatsReport.type_remote-outbound-rtp.remoteTimestamp 📋Firefox7/28/2020 Chrome5/25/2021301
api.RTCStatsReport.type_remote-outbound-rtp.ssrc 📋Firefox2/4/2014 Chrome5/25/20212667
api.RTCStatsReport.type_remote-outbound-rtp.timestamp 📋Firefox1/7/2020 Chrome5/25/2021504
api.RTCStatsReport.type_remote-outbound-rtp.type 📋Firefox1/7/2020 Chrome5/25/2021504

2021/4

API First Browser Date Last Browser Date Days Notes
api.AbstractRange 📋Firefox9/3/2019 Chrome4/13/2021588
api.AbstractRange.collapsed 📋Firefox9/3/2019 Chrome4/13/2021588
api.AbstractRange.endContainer 📋Firefox9/3/2019 Chrome4/13/2021588
api.AbstractRange.endOffset 📋Firefox9/3/2019 Chrome4/13/2021588
api.AbstractRange.startContainer 📋Firefox9/3/2019 Chrome4/13/2021588
api.AbstractRange.startOffset 📋Firefox9/3/2019 Chrome4/13/2021588
api.EventTarget.addEventListener.options_parameter.options_signal_parameter 📋Firefox2/23/2021 Chrome4/13/202149
api.StaticRange.StaticRange 📋Firefox12/10/2019 Chrome4/13/2021490

2021/3

API First Browser Date Last Browser Date Days Notes
api.Element.beforeinput_event 📋Chrome7/25/2017 Firefox3/23/20211337
api.InputEvent.getTargetRanges 📋Chrome7/25/2017 Firefox3/23/20211337
api.MediaSource.sourceclose_event 📋Chrome8/31/2016 Firefox3/23/20211665
Chrome: The onsourceclose event handler property is not supported.Chrome Android: The onsourceclose event handler property is not supported.Edge: The onsourceclose event handler property is not supported.Firefox: The onsourceclose event handler property is not supported.Firefox for Android: The onsourceclose event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onsourceclose event handler property is not supported.Opera Android: The onsourceclose event handler property is not supported.Safari: The onsourceclose event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onsourceclose event handler property is not supported.WebView Android: The onsourceclose event handler property is not supported.
api.Navigator.share.data_text_parameter 📋Firefox12/10/2019 Chrome3/2/2021448

2021/1

API First Browser Date Last Browser Date Days Notes
api.RTCRtpTransceiver.stop 📋Firefox3/13/2018 Chrome1/19/20211043

2020/12

API First Browser Date Last Browser Date Days Notes
api.EventTarget.addEventListener.options_parameter.options_passive_parameter_default_true_wheel Chrome3/12/2019 Firefox12/15/2020644
api.FetchEvent.handled 📋Chrome10/20/2020 Firefox12/15/202056
api.PerformancePaintTiming 📋Chrome7/25/2017 Firefox12/15/20201239
api.PerformancePaintTiming.first-contentful-paint 📋Chrome7/25/2017 Firefox12/15/20201239
api.PerformancePaintTiming.toJSON 📋Chrome7/25/2017 Firefox12/15/20201239

2020/11

API First Browser Date Last Browser Date Days Notes
api.Element.transitioncancel_event 📋Firefox4/19/2017 Chrome11/17/20201308
Chrome: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.Chrome Android: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.Edge: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.Quest Browser: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.Opera: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.Opera Android: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.Safari: Although the ontransitioncancel event handler property is supported, the transitioncancel event is never fired.Safari on iOS: Although the ontransitioncancel event handler property is supported, the transitioncancel event is never fired.Samsung Internet: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.WebView Android: The ontransitioncancel event handler property is not supported. To listen to this event, use element.addEventListener('transitioncancel', function() {});.WebView on iOS: Although the ontransitioncancel event handler property is supported, the transitioncancel event is never fired.
api.crossOriginIsolated 📋Firefox1/7/2020 Chrome11/17/2020315

2020/10

API First Browser Date Last Browser Date Days Notes
api.Document.replaceChildren 📋Firefox6/30/2020 Chrome10/20/2020112
api.DocumentFragment.replaceChildren 📋Firefox6/30/2020 Chrome10/20/2020112
api.Element.replaceChildren 📋Firefox6/30/2020 Chrome10/20/2020112
api.Element.scrollLeft 📋Firefox11/9/2004 Chrome10/20/20205824
Chrome: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Chrome Android: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Edge: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Internet Explorer: For right-to-left elements, this property uses 100-0 (most left to most right) instead of negative values.Quest Browser: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.Samsung Internet: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.WebView Android: For right-to-left elements, this property uses 0-100 (most left to most right) instead of negative values. See bug 41319147.
api.MediaMetadata 📋Chrome3/9/2017 Firefox10/20/20201321
Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaMetadata.MediaMetadata 📋Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.album 📋Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.artist 📋Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.artwork 📋Chrome3/9/2017 Firefox10/20/20201321
api.MediaMetadata.title 📋Chrome3/9/2017 Firefox10/20/20201321
api.MediaSession 📋Chrome3/12/2019 Firefox10/20/2020588
Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.metadata 📋Chrome3/12/2019 Firefox10/20/2020588
Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.playbackState 📋Chrome3/12/2019 Firefox10/20/2020588
Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.setActionHandler 📋Chrome3/12/2019 Firefox10/20/2020588
Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.MediaSession.setActionHandler.nexttrack_type Chrome3/12/2019 Firefox10/20/2020588
api.MediaSession.setActionHandler.pause_type Chrome3/12/2019 Firefox10/20/2020588
api.MediaSession.setActionHandler.play_type Chrome3/12/2019 Firefox10/20/2020588
api.MediaSession.setActionHandler.previoustrack_type Chrome3/12/2019 Firefox10/20/2020588
api.MediaSession.setActionHandler.seekbackward_type Chrome3/12/2019 Firefox10/20/2020588
api.MediaSession.setActionHandler.seekforward_type Chrome3/12/2019 Firefox10/20/2020588
api.MediaSession.setActionHandler.seekto_type Chrome10/22/2019 Firefox10/20/2020364
api.MediaSession.setActionHandler.stop_type Chrome9/10/2019 Firefox10/20/2020406
api.MediaSession.setPositionState 📋Chrome4/7/2020 Firefox10/20/2020196
Firefox for Android: Firefox exposes the API, but does not provide a corresponding user-facing media control interface.
api.Navigator.mediaSession 📋Chrome3/12/2019 Firefox10/20/2020588
api.RTCDtlsTransport 📋Chrome1/29/2019 Firefox10/20/2020630
api.RTCDtlsTransport.state 📋Chrome1/29/2019 Firefox10/20/2020630
api.RTCDtlsTransport.statechange_event Chrome1/29/2019 Firefox10/20/2020630
api.RTCRtpReceiver.transport 📋Chrome6/5/2017 Firefox10/20/20201233
api.RTCRtpSender.transport 📋Chrome6/4/2019 Firefox10/20/2020504

2020/8

API First Browser Date Last Browser Date Days Notes
api.Element.animate.options_composite_parameter 📋Chrome7/27/2020 Firefox8/25/202029
api.KeyframeEffect.composite 📋Chrome7/27/2020 Firefox8/25/202029
api.RTCStatsReport.type_data-channel.dataChannelIdentifier 📋Firefox7/28/2020 Chrome8/25/202028

2020/7

API First Browser Date Last Browser Date Days Notes
api.CanvasPattern.setTransform.dommatrix Chrome7/24/2018 Firefox7/28/2020735
api.FileReader.loadstart_event 📋Chrome9/2/2010 Firefox7/28/20203617
Firefox: loadstart event dispatches synchronously (should be asynchronously as per spec).Firefox for Android: loadstart event dispatches synchronously (should be asynchronously as per spec).
api.RTCStatsReport.type_data-channel 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.bytesReceived 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.bytesSent 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.id 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.label 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.messagesReceived 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.messagesSent 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.protocol 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.state 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.timestamp 📋Chrome2/4/2020 Firefox7/28/2020175
api.RTCStatsReport.type_data-channel.type 📋Chrome2/4/2020 Firefox7/28/2020175
api.WebGL2RenderingContext.bufferData.srcData_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.bufferSubData.srcData_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.clearBufferfv.values_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.clearBufferiv.values_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.clearBufferuiv.values_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.compressedTexImage2D.pixels_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.compressedTexImage3D.pixels_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.compressedTexSubImage2D.srcData_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.getBufferSubData.dstData_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.readPixels.pixels_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.texImage3D.srcData_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.texSubImage3D.srcData_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix2fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix2x3fv.data_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix2x4fv.data_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix3fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix3x2fv.data_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix3x4fv.data_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix4fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix4x2fv.data_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.uniformMatrix4x3fv.data_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.vertexAttrib1fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.vertexAttrib2fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.vertexAttrib3fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.vertexAttrib4fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.vertexAttribI4iv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGL2RenderingContext.vertexAttribI4uiv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGLRenderingContext.compressedTexImage2D.pixels_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGLRenderingContext.vertexAttrib1fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGLRenderingContext.vertexAttrib2fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGLRenderingContext.vertexAttrib3fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.WebGLRenderingContext.vertexAttrib4fv.value_param_accepts_SharedArrayBuffer Chrome7/25/2017 Firefox7/28/20201099
api.Animation.commitStyles 📋Firefox4/7/2020 Chrome7/27/2020111
api.Animation.finished 📋Firefox10/23/2018 Chrome7/27/2020643
api.Animation.persist 📋Firefox4/7/2020 Chrome7/27/2020111
api.Animation.ready 📋Firefox10/23/2018 Chrome7/27/2020643
api.Animation.remove_event 📋Firefox4/7/2020 Chrome7/27/2020111
api.Animation.remove_filling_animation Firefox4/7/2020 Chrome7/27/2020111
api.Animation.replaceState 📋Firefox4/7/2020 Chrome7/27/2020111
api.Animation.timeline 📋Firefox4/7/2020 Chrome7/27/2020111
Firefox: Only the getter is supportedFirefox for Android: Only the getter is supportedSafari: Only the getter is supportedSafari on iOS: Only the getter is supportedWebView on iOS: Only the getter is supported
api.AnimationPlaybackEvent 📋Firefox10/23/2018 Chrome7/27/2020643
api.AnimationPlaybackEvent.AnimationPlaybackEvent 📋Firefox10/23/2018 Chrome7/27/2020643
api.AnimationPlaybackEvent.currentTime 📋Firefox10/23/2018 Chrome7/27/2020643
api.AnimationPlaybackEvent.timelineTime 📋Firefox10/23/2018 Chrome7/27/2020643
api.AnimationTimeline 📋Firefox4/7/2020 Chrome7/27/2020111
api.AnimationTimeline.currentTime 📋Firefox4/7/2020 Chrome7/27/2020111
api.CSSAnimation 📋Firefox4/7/2020 Chrome7/27/2020111
api.CSSAnimation.animationName 📋Firefox4/7/2020 Chrome7/27/2020111
api.CSSTransition 📋Firefox4/7/2020 Chrome7/27/2020111
api.CSSTransition.transitionProperty 📋Firefox4/7/2020 Chrome7/27/2020111
api.Document.getAnimations 📋Firefox4/7/2020 Chrome7/27/2020111
Safari: Implements an older version of the specification, see bug 179536.Safari on iOS: Implements an older version of the specification, see bug 179536.WebView on iOS: Implements an older version of the specification, see bug 179536.
api.Document.timeline 📋Firefox4/7/2020 Chrome7/27/2020111
api.DocumentTimeline 📋Firefox4/7/2020 Chrome7/27/2020111
api.DocumentTimeline.DocumentTimeline 📋Firefox4/7/2020 Chrome7/27/2020111
api.Element.animate.implicit_tofrom Firefox4/7/2020 Chrome7/27/2020111
Safari: Implementation seems somewhat buggy. More information will follow when available.Safari on iOS: Implementation seems somewhat buggy. More information will follow when available.WebView on iOS: Implementation seems somewhat buggy. More information will follow when available.
api.Element.animate.options_pseudoElement_parameter 📋Firefox4/7/2020 Chrome7/27/2020111
api.Element.getAnimations 📋Firefox4/7/2020 Chrome7/27/2020111
api.KeyframeEffect.getKeyframes 📋Firefox10/23/2018 Chrome7/27/2020643
api.KeyframeEffect.pseudoElement 📋Firefox4/7/2020 Chrome7/27/2020111
api.KeyframeEffect.setKeyframes 📋Firefox10/23/2018 Chrome7/27/2020643
api.ReportingObserver.worker_support Firefox6/2/2020 Chrome7/27/202055
api.ResizeObserver.observe.options_box_parameter Firefox9/3/2019 Chrome7/27/2020328
Firefox: Before version 93, the device-pixel-content-box value is not supported.Firefox for Android: Before version 93, the device-pixel-content-box value is not supported.
api.ResizeObserverSize 📋Firefox9/3/2019 Chrome7/27/2020328
api.ResizeObserverSize.blockSize 📋Firefox9/3/2019 Chrome7/27/2020328
api.ResizeObserverSize.inlineSize 📋Firefox9/3/2019 Chrome7/27/2020328
api.ShadowRoot.getAnimations 📋Firefox4/7/2020 Chrome7/27/2020111

2020/6

API First Browser Date Last Browser Date Days Notes
api.HTMLLinkElement.imageSizes 📋Chrome3/12/2019 Firefox6/30/2020476
api.HTMLLinkElement.imageSrcset 📋Chrome3/12/2019 Firefox6/30/2020476
api.IDBCursor.request 📋Chrome7/30/2019 Firefox6/2/2020308
api.Report.toJSON Chrome9/4/2018 Firefox6/2/2020637
api.ReportBody.toJSON Chrome9/4/2018 Firefox6/2/2020637

2020/5

API First Browser Date Last Browser Date Days Notes
api.Element.animationcancel_event 📋Firefox6/13/2017 Chrome5/19/20201071
Chrome: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.Chrome Android: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.Edge: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.Quest Browser: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.Opera: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.Opera Android: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.Safari: Although the onanimationcancel event handler property is supported, the animationcancel event is never fired.Safari on iOS: Although the onanimationcancel event handler property is supported, the animationcancel event is never fired.Samsung Internet: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.WebView Android: The onanimationcancel event handler property is not supported. To listen to this event, use element.addEventListener('animationcancel', function() {});. See bug 41404325.WebView on iOS: Although the onanimationcancel event handler property is supported, the animationcancel event is never fired.
api.RTCPeerConnection.canTrickleIceCandidates 📋Firefox6/7/2016 Chrome5/19/20201442
api.AudioParamMap 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.@@iterator Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.entries Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.forEach Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.get Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.has Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.keys Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.size Chrome4/17/2018 Firefox5/5/2020749
api.AudioParamMap.values Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorklet 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletGlobalScope 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletGlobalScope.currentFrame 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletGlobalScope.currentTime 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletGlobalScope.registerProcessor 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletGlobalScope.sampleRate 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletNode 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletNode.AudioWorkletNode 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletNode.parameters 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletNode.port 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletNode.processorerror_event 📋Chrome4/17/2018 Firefox5/5/2020749
api.AudioWorkletProcessor 📋Chrome1/23/2018 Firefox5/5/2020833
api.AudioWorkletProcessor.AudioWorkletProcessor 📋Chrome1/23/2018 Firefox5/5/2020833
api.AudioWorkletProcessor.port 📋Chrome1/23/2018 Firefox5/5/2020833
api.BaseAudioContext.audioWorklet 📋Chrome4/17/2018 Firefox5/5/2020749
api.IntersectionObserver.IntersectionObserver.options_root_parameter_Document Chrome4/7/2020 Firefox5/5/202028
api.Worklet 📋Chrome3/6/2018 Firefox5/5/2020791
api.Worklet.addModule 📋Chrome3/6/2018 Firefox5/5/2020791
api.WorkletGlobalScope 📋Chrome3/6/2018 Firefox5/5/2020791

2020/4

API First Browser Date Last Browser Date Days Notes
api.Crypto.subtle.secure_context_required Chrome7/25/2017 Firefox4/7/2020987
api.HTMLElement.nonce 📋Chrome9/5/2017 Firefox4/7/2020945
Safari: The property is defined only for its useful elements: <link>, <script>, and <style>; it is undefined for all other elements.Safari on iOS: The property is defined only for its useful elements: <link>, <script>, and <style>; it is undefined for all other elements.WebView on iOS: The property is defined only for its useful elements: <link>, <script>, and <style>; it is undefined for all other elements.
api.HTMLFormElement.requestSubmit 📋Chrome7/30/2019 Firefox4/7/2020252
api.HTMLImageElement.loading 📋Chrome9/10/2019 Firefox4/7/2020210
api.RTCPeerConnection.setLocalDescription.description_parameter_optional Chrome2/4/2020 Firefox4/7/202063
api.RTCStatsReport.type_outbound-rtp.remoteId 📋Firefox2/4/2014 Chrome4/7/20202254
api.SVGElement.nonce 📋Chrome9/5/2017 Firefox4/7/2020945
api.ServiceWorkerGlobalScope.messageerror_event 📋Firefox1/29/2019 Chrome4/7/2020434
Safari: Although the onmessageerror property is supported, the messageerror event is never fired. See bug 272967.Safari on iOS: Although the onmessageerror property is supported, the messageerror event is never fired. See bug 272967.
api.SubmitEvent 📋Chrome4/7/2020 Firefox4/7/2020
api.SubmitEvent.SubmitEvent 📋Chrome4/7/2020 Firefox4/7/2020
api.SubmitEvent.submitter 📋Chrome4/7/2020 Firefox4/7/2020
Safari: Property is not set for <button> elements. See bug 229660.Safari on iOS: Property is not set for <button> elements. See bug 229660.WebView on iOS: Property is not set for <button> elements. See bug 229660.
api.SubtleCrypto.secure_context_required Chrome7/25/2017 Firefox4/7/2020987

2020/3

API First Browser Date Last Browser Date Days Notes
api.HTMLIFrameElement.allow 📋Chrome7/25/2017 Firefox3/10/2020959
api.IDBTransaction.commit 📋Chrome7/30/2019 Firefox3/10/2020224
api.TextMetrics.actualBoundingBoxAscent 📋Chrome9/10/2019 Firefox3/10/2020182
api.TextMetrics.actualBoundingBoxDescent 📋Chrome9/10/2019 Firefox3/10/2020182
api.TextMetrics.actualBoundingBoxLeft 📋Chrome9/10/2019 Firefox3/10/2020182
api.TextMetrics.actualBoundingBoxRight 📋Chrome9/10/2019 Firefox3/10/2020182
api.WorkerGlobalScope.languagechange_event 📋Chrome1/25/2010 Firefox3/10/20203697

2020/2

API First Browser Date Last Browser Date Days Notes
api.HTMLVideoElement.getVideoPlaybackQuality 📋Firefox11/3/2015 Chrome2/4/20201554
Internet Explorer: Only works on Windows 8+.
api.Navigator.registerProtocolHandler.secure_context_required Firefox9/5/2018 Chrome2/4/2020517
api.OES_fbo_render_mipmap 📋Firefox12/10/2019 Chrome2/4/202056
api.RTCPeerConnection.setRemoteDescription.implicit_rollback Firefox10/22/2019 Chrome2/4/2020105
api.RTCStatsReport.type_candidate-pair.id 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_candidate-pair.timestamp 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_candidate-pair.type 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_inbound-rtp.id 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_inbound-rtp.jitter 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_inbound-rtp.kind 📋Firefox10/23/2018 Chrome2/4/2020469
api.RTCStatsReport.type_inbound-rtp.nackCount 📋Firefox8/8/2017 Chrome2/4/2020910
api.RTCStatsReport.type_inbound-rtp.packetsLost 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_inbound-rtp.packetsReceived 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_inbound-rtp.ssrc 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_inbound-rtp.timestamp 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_inbound-rtp.type 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_local-candidate 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_local-candidate.candidateType 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_local-candidate.id 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_local-candidate.port 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_local-candidate.priority 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_local-candidate.protocol 📋Firefox12/11/2018 Chrome2/4/2020420
api.RTCStatsReport.type_local-candidate.timestamp 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_local-candidate.transportId 📋Firefox7/22/2014 Chrome2/4/20202023
api.RTCStatsReport.type_local-candidate.type 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_outbound-rtp 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_outbound-rtp.bytesSent 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_outbound-rtp.framesEncoded 📋Firefox8/8/2017 Chrome2/4/2020910
api.RTCStatsReport.type_outbound-rtp.id 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_outbound-rtp.kind 📋Firefox10/23/2018 Chrome2/4/2020469
api.RTCStatsReport.type_outbound-rtp.packetsSent 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_outbound-rtp.qpSum 📋Firefox3/19/2019 Chrome2/4/2020322
api.RTCStatsReport.type_outbound-rtp.ssrc 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_outbound-rtp.timestamp 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_outbound-rtp.type 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-candidate 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-candidate.candidateType 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-candidate.id 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-candidate.port 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-candidate.priority 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-candidate.protocol 📋Firefox12/11/2018 Chrome2/4/2020420
api.RTCStatsReport.type_remote-candidate.timestamp 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-candidate.transportId 📋Firefox7/22/2014 Chrome2/4/20202023
api.RTCStatsReport.type_remote-candidate.type 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-inbound-rtp 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-inbound-rtp.id 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-inbound-rtp.jitter 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-inbound-rtp.kind 📋Firefox10/23/2018 Chrome2/4/2020469
api.RTCStatsReport.type_remote-inbound-rtp.localId 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-inbound-rtp.packetsLost 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-inbound-rtp.ssrc 📋Firefox2/4/2014 Chrome2/4/20202191
api.RTCStatsReport.type_remote-inbound-rtp.timestamp 📋Firefox1/7/2020 Chrome2/4/202028
api.RTCStatsReport.type_remote-inbound-rtp.type 📋Firefox1/7/2020 Chrome2/4/202028
api.ServiceWorkerContainer.messageerror_event 📋Firefox1/29/2019 Chrome2/4/2020371
Safari: Although the onmessageerror event handler property is supported, the messageerror event is never fired.Safari on iOS: Although the onmessageerror event handler property is supported, the messageerror event is never fired.

2020/1

API First Browser Date Last Browser Date Days Notes
api.Element.part 📋Chrome3/12/2019 Firefox1/7/2020301
api.FormDataEvent 📋Chrome9/10/2019 Firefox1/7/2020119
api.FormDataEvent.FormDataEvent 📋Chrome9/10/2019 Firefox1/7/2020119
api.FormDataEvent.formData 📋Chrome9/10/2019 Firefox1/7/2020119
api.GeolocationCoordinates 📋Chrome12/10/2019 Firefox1/7/202028
api.GeolocationPosition 📋Chrome12/10/2019 Firefox1/7/202028
api.GeolocationPositionError 📋Chrome12/10/2019 Firefox1/7/202028
api.HTMLFormElement.formdata_event 📋Chrome9/10/2019 Firefox1/7/2020119
api.MediaStream.removetrack_event 📋Chrome3/26/2013 Firefox1/7/20202478
Firefox: Before Firefox 72, the event handler was exposed but had no effect.Firefox for Android: Before Firefox for Android 79, the event handler was exposed but had no effect.
api.RTCRtpReceiver.getContributingSources.rtpTimestamp 📋Chrome7/30/2019 Firefox1/7/2020161

2019/12

API First Browser Date Last Browser Date Days Notes
api.Element.animationend_event 📋Firefox1/24/2017 Chrome12/10/20191050
Chrome: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Chrome Android: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Edge: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Firefox: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Firefox for Android: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Internet Explorer: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Quest Browser: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Opera: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Opera Android: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.Samsung Internet: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.WebView Android: The onanimationend event handler property is not supported. To listen to this event, use document.addEventListener('animationend', function() {});.
api.Element.animationiteration_event 📋Firefox1/24/2017 Chrome12/10/20191050
Chrome: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Chrome Android: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Edge: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Firefox: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Firefox for Android: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Internet Explorer: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Quest Browser: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Opera: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Opera Android: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.Samsung Internet: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.WebView Android: The onanimationiteration event handler property is not supported. To listen to this event, use document.addEventListener('animationiteration', function() {});.
api.Element.animationstart_event 📋Firefox1/24/2017 Chrome12/10/20191050
Chrome: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Chrome Android: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Edge: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Firefox: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Firefox for Android: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Internet Explorer: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Quest Browser: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Opera: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Opera Android: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.Samsung Internet: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.WebView Android: The onanimationstart event handler property is not supported. To listen to this event, use document.addEventListener('animationstart', function() {});.
api.MediaRecorder.audioBitsPerSecond 📋Chrome3/2/2016 Firefox12/10/20191378
api.MediaRecorder.videoBitsPerSecond 📋Chrome3/2/2016 Firefox12/10/20191378
api.RTCStatsReport.type_inbound-rtp 📋Firefox2/4/2014 Chrome12/10/20192135
api.RTCStatsReport.type_inbound-rtp.bytesReceived 📋Firefox2/4/2014 Chrome12/10/20192135
api.RTCStatsReport.type_inbound-rtp.framesDecoded 📋Firefox9/28/2017 Chrome12/10/2019803

2019/10

API First Browser Date Last Browser Date Days Notes
api.AudioContext.baseLatency 📋Chrome4/19/2017 Firefox10/22/2019916
api.AudioContext.getOutputTimestamp 📋Chrome3/9/2017 Firefox10/22/2019957
api.CanvasRenderingContext2D.getTransform 📋Chrome7/24/2018 Firefox10/22/2019455
api.CanvasRenderingContext2D.setTransform.matrix_parameter Chrome7/24/2018 Firefox10/22/2019455
api.Document.all 📋Chrome1/23/2018 Firefox10/22/2019637
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.captureEvents 📋Chrome1/23/2018 Firefox10/22/2019637
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.clear 📋Chrome1/23/2018 Firefox10/22/2019637
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.releaseEvents 📋Chrome1/23/2018 Firefox10/22/2019637
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.FeaturePolicy.features Chrome4/23/2019 Firefox10/22/2019182
api.MediaDevices.getSupportedConstraints.return_object_property_groupId 📋Chrome8/31/2016 Firefox10/22/20191147
api.MediaElementAudioSourceNode.mediaElement 📋Chrome10/25/2011 Firefox10/22/20192919
api.MediaStreamAudioSourceNode.mediaStream 📋Chrome9/25/2012 Firefox10/22/20192583
api.MediaStreamTrack.applyConstraints.groupId_constraint 📋Chrome6/5/2017 Firefox10/22/2019869
api.PaymentResponse.payerdetailchange_event 📋Firefox8/8/2017 Chrome10/22/2019805
api.PaymentResponse.retry 📋Firefox8/8/2017 Chrome10/22/2019805
api.RTCPeerConnection.restartIce 📋Chrome9/10/2019 Firefox10/22/201942
api.SVGElement.focus.options_preventScroll_parameter Firefox7/9/2019 Chrome10/22/2019105

2019/9

API First Browser Date Last Browser Date Days Notes
api.SpeechSynthesisEvent.charLength 📋Firefox4/19/2017 Chrome9/10/2019874
api.Blob.arrayBuffer 📋Chrome7/30/2019 Firefox9/3/201935
api.Blob.stream 📋Chrome7/30/2019 Firefox9/3/201935
api.Blob.text 📋Chrome7/30/2019 Firefox9/3/201935
api.DOMMatrix.fromFloat32Array_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrix.fromFloat64Array_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrix.fromMatrix_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrix.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.fromFloat32Array_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.fromFloat64Array_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.fromMatrix_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMMatrixReadOnly.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMPoint.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMPointReadOnly.matrixTransform 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMPointReadOnly.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMQuad.fromQuad_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMQuad.fromRect_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMQuad.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMRect.fromRect_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMRect.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.DOMRectReadOnly.fromRect_static 📋Chrome9/5/2017 Firefox9/3/2019728
api.DOMRectReadOnly.worker_support Chrome9/5/2017 Firefox9/3/2019728
api.Document.alinkColor 📋Chrome1/23/2018 Firefox9/3/2019588
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.bgColor 📋Chrome1/23/2018 Firefox9/3/2019588
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.close 📋Chrome9/1/2015 Firefox9/3/20191463
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.designMode 📋Chrome7/16/2014 Firefox9/3/20191875
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.domain 📋Chrome12/11/2008 Firefox9/3/20193918
Chrome: Since Chrome 115, setting domain has no effect, unless the website has opted into origin-keyed agent clusters.Chrome Android: Since Chrome Android 115, setting domain has no effect, unless the website has opted into origin-keyed agent clusters.Firefox: From Firefox 62, if the domain cannot be identified, domain returns an empty string instead of null. See bug 819475.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: From Firefox for Android 62, if the domain cannot be identified, domain returns an empty string instead of null. See bug 819475.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Quest Browser: Since Quest Browser false, setting domain has no effect, unless the website has opted into origin-keyed agent clusters.Samsung Internet: Since Samsung Internet 23.0, setting domain has no effect, unless the website has opted into origin-keyed agent clusters.WebView Android: Since WebView Android 115, setting domain has no effect, unless the website has opted into origin-keyed agent clusters.
api.Document.execCommand Chrome12/11/2008 Firefox9/3/20193918
Firefox: From Firefox 82, nested calls are not supported (return false). See bug 1634262.Firefox: Before Firefox 89, manipulating the content of <input> and <textarea> elements using Document.execCommand() commands requires workarounds (see bug 1220696).Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: From Firefox for Android 82, nested calls are not supported (return false). See bug 1634262.Firefox for Android: Before Firefox for Android 89, manipulating the content of <input> and <textarea> elements using Document.execCommand() commands requires workarounds (see bug 1220696).Firefox for Android: Only supported for HTMLDocument, not all Document objects.
api.Document.featurePolicy Chrome4/23/2019 Firefox9/3/2019133
api.Document.fgColor 📋Chrome1/23/2018 Firefox9/3/2019588
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.linkColor 📋Chrome1/23/2018 Firefox9/3/2019588
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.open 📋Chrome9/1/2015 Firefox9/3/20191463
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.queryCommandEnabled Chrome12/11/2008 Firefox9/3/20193918
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox: queryCommandEnabled with arguments cut, copy or paste would throw errors unless the script had special privileges.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Firefox for Android: queryCommandEnabled with arguments cut, copy or paste would throw errors unless the script had special privileges.
api.Document.queryCommandIndeterm Chrome12/11/2008 Firefox9/3/20193918
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.
api.Document.queryCommandState Chrome12/11/2008 Firefox9/3/20193918
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.
api.Document.queryCommandSupported Chrome12/11/2008 Firefox9/3/20193918
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox: The "paste" command is reported as supported when the paste feature is available even if the calling script has insufficient privileges to actually perform the action.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Firefox for Android: The "paste" command is reported as supported when the paste feature is available even if the calling script has insufficient privileges to actually perform the action.
api.Document.queryCommandValue Chrome12/11/2008 Firefox9/3/20193918
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.
api.Document.vlinkColor 📋Chrome1/23/2018 Firefox9/3/2019588
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.write 📋Chrome9/1/2015 Firefox9/3/20191463
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.writeln 📋Chrome9/1/2015 Firefox9/3/20191463
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.HTMLIFrameElement.featurePolicy Chrome4/23/2019 Firefox9/3/2019133
api.Navigator.mediaDevices.secure_context_required Chrome4/23/2019 Firefox9/3/2019133
api.PromiseRejectionEvent 📋Chrome3/2/2016 Firefox9/3/20191280
api.PromiseRejectionEvent.PromiseRejectionEvent 📋Chrome3/2/2016 Firefox9/3/20191280
api.PromiseRejectionEvent.promise 📋Chrome3/2/2016 Firefox9/3/20191280
api.PromiseRejectionEvent.reason 📋Chrome3/2/2016 Firefox9/3/20191280
api.ResizeObserver 📋Chrome1/23/2018 Firefox9/3/2019588
api.ResizeObserver.ResizeObserver 📋Chrome1/23/2018 Firefox9/3/2019588
api.ResizeObserver.disconnect 📋Chrome1/23/2018 Firefox9/3/2019588
api.ResizeObserver.observe 📋Chrome1/23/2018 Firefox9/3/2019588
api.ResizeObserver.unobserve 📋Chrome1/23/2018 Firefox9/3/2019588
api.ResizeObserverEntry 📋Chrome1/23/2018 Firefox9/3/2019588
api.ResizeObserverEntry.contentRect 📋Chrome1/23/2018 Firefox9/3/2019588
api.ResizeObserverEntry.target 📋Chrome1/23/2018 Firefox9/3/2019588
api.SVGGeometryElement.isPointInFill 📋Chrome2/20/2014 Firefox9/3/20192021
Chrome: The element this method is called for must be in the DOM; otherwise, this method will always return false.Chrome Android: The element this method is called for must be in the DOM; otherwise, this method will always return false.Edge: The element this method is called for must be in the DOM; otherwise, this method will always return false.Quest Browser: The element this method is called for must be in the DOM; otherwise, this method will always return false.Opera: The element this method is called for must be in the DOM; otherwise, this method will always return false.Opera Android: The element this method is called for must be in the DOM; otherwise, this method will always return false.WebView Android: The element this method is called for must be in the DOM; otherwise, this method will always return false.
api.SVGGeometryElement.isPointInStroke 📋Chrome2/20/2014 Firefox9/3/20192021
Chrome: The element this method is called for must be in the DOM; otherwise, this method will always return false.Chrome Android: The element this method is called for must be in the DOM; otherwise, this method will always return false.Edge: The element this method is called for must be in the DOM; otherwise, this method will always return false.Quest Browser: The element this method is called for must be in the DOM; otherwise, this method will always return false.Opera: The element this method is called for must be in the DOM; otherwise, this method will always return false.Opera Android: The element this method is called for must be in the DOM; otherwise, this method will always return false.WebView Android: The element this method is called for must be in the DOM; otherwise, this method will always return false.
api.StaticRange 📋Chrome7/25/2017 Firefox9/3/2019770
Firefox: In Firefox, StaticRange can currently only be used by browser-internal code or code with enhanced permissions; it is not yet exposed to the web.
api.StaticRange.collapsed 📋Chrome7/25/2017 Firefox9/3/2019770
api.StaticRange.endContainer 📋Chrome7/25/2017 Firefox9/3/2019770
api.StaticRange.endOffset 📋Chrome7/25/2017 Firefox9/3/2019770
api.StaticRange.startContainer 📋Chrome7/25/2017 Firefox9/3/2019770
api.StaticRange.startOffset 📋Chrome7/25/2017 Firefox9/3/2019770
api.Window.rejectionhandled_event 📋Chrome3/2/2016 Firefox9/3/20191280
api.Window.unhandledrejection_event 📋Chrome3/2/2016 Firefox9/3/20191280
Firefox: event.preventDefault() does not prevent Firefox from logging the error message in the console, see bug 1642147.Firefox for Android: event.preventDefault() does not prevent Firefox for Android from logging the error message in the console, see bug 1642147.
api.WorkerGlobalScope.rejectionhandled_event 📋Chrome3/2/2016 Firefox9/3/20191280
api.WorkerGlobalScope.unhandledrejection_event 📋Chrome3/2/2016 Firefox9/3/20191280
api.queueMicrotask 📋Chrome12/4/2018 Firefox9/3/2019273

2019/7

API First Browser Date Last Browser Date Days Notes
api.Animation.pending 📋Firefox3/13/2018 Chrome7/30/2019504
Firefox: Before version 59, the pending status was reported by a "pending" value returned from Animation.playState.Firefox for Android: Before version 59, the pending status was reported by a "pending" value returned from Animation.playState.
api.Animation.updatePlaybackRate 📋Firefox5/9/2018 Chrome7/30/2019447
api.PaymentMethodChangeEvent 📋Firefox8/8/2017 Chrome7/30/2019721
api.PaymentMethodChangeEvent.PaymentMethodChangeEvent 📋Firefox8/8/2017 Chrome7/30/2019721
api.PaymentMethodChangeEvent.methodDetails 📋Firefox8/8/2017 Chrome7/30/2019721
api.PaymentMethodChangeEvent.methodName 📋Firefox8/8/2017 Chrome7/30/2019721
api.PaymentRequest.paymentmethodchange_event 📋Firefox8/8/2017 Chrome7/30/2019721
api.WorkerNavigator.mediaCapabilities 📋Firefox10/23/2018 Chrome7/30/2019280
api.CSSStyleSheet.addRule 📋Chrome12/11/2008 Firefox7/9/20193862
api.CSSStyleSheet.removeRule 📋Chrome12/11/2008 Firefox7/9/20193862
api.CSSStyleSheet.rules 📋Chrome12/11/2008 Firefox7/9/20193862
api.Document.cookie 📋Chrome12/11/2008 Firefox7/9/20193862
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.HTMLElement.focus.options_preventScroll_parameter Chrome1/23/2018 Firefox7/9/2019532
api.HTMLImageElement.decode 📋Chrome1/23/2018 Firefox7/9/2019532
api.HTMLTrackElement.cuechange_event 📋Chrome1/14/2014 Firefox7/9/20192002
Chrome: The oncuechange event handler property is not supported.Chrome Android: The oncuechange event handler property is not supported.Opera: The oncuechange event handler property is not supported.Opera Android: The oncuechange event handler property is not supported.Safari: The oncuechange event handler property is not supported.Safari on iOS: The oncuechange event handler property is not supported.Samsung Internet: The oncuechange event handler property is not supported.WebView Android: The oncuechange event handler property is not supported.WebView on iOS: The oncuechange event handler property is not supported.
api.MediaDevices.getUserMedia.secure_context_required Chrome8/31/2016 Firefox7/9/20191042
api.PerformanceObserver.supportedEntryTypes_static 📋Chrome3/12/2019 Firefox7/9/2019119
api.RTCDataChannel.negotiated 📋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
api.SVGImageElement.decode 📋Chrome1/23/2018 Firefox7/9/2019532

2019/6

API First Browser Date Last Browser Date Days Notes
api.Animation 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.Animation 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.cancel 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.cancel_event 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.currentTime 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.effect 📋Firefox10/23/2018 Chrome6/4/2019224
api.Animation.finish 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.finish_event 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.id 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.pause 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.play 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.playState 📋Firefox8/2/2016 Chrome6/4/20191036
Chrome: Before Chrome 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows paused.Chrome Android: Before Chrome Android 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome Android 50/Opera 37, it shows paused.Firefox: Before Firefox 59, this property returned pending for Animations with incomplete asynchronous operations but as of Firefox 59 this is indicated by the separate Animation.pending property. This reflects recent changes to the specification.Firefox for Android: Before Firefox for Android 59, this property returned pending for Animations with incomplete asynchronous operations but as of Firefox for Android 59 this is indicated by the separate Animation.pending property. This reflects recent changes to the specification.Quest Browser: Before Quest Browser 5.0/Opera 37, this property returned idle for an animation that had not yet started. Starting with Quest Browser 5.0/Opera 37, it shows paused.Opera: Before Chrome 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows paused.Opera Android: Before Chrome 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with Chrome 50/Opera 37, it shows paused.Samsung Internet: Before Samsung Internet 5.0/Opera 37, this property returned idle for an animation that had not yet started. Starting with Samsung Internet 5.0/Opera 37, it shows paused.WebView Android: Before WebView Android 50/Opera 37, this property returned idle for an animation that had not yet started. Starting with WebView Android 50/Opera 37, it shows paused.
api.Animation.playbackRate 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.reverse 📋Firefox8/2/2016 Chrome6/4/20191036
api.Animation.startTime 📋Firefox8/2/2016 Chrome6/4/20191036
api.AnimationEffect 📋Firefox10/23/2018 Chrome6/4/2019224
api.AnimationEffect.getComputedTiming 📋Firefox10/23/2018 Chrome6/4/2019224
api.AnimationEffect.getTiming 📋Firefox10/23/2018 Chrome6/4/2019224
api.AnimationEffect.updateTiming 📋Firefox10/23/2018 Chrome6/4/2019224
api.EXT_float_blend 📋Firefox5/21/2019 Chrome6/4/201914
Chrome Android: Until Chrome 77, this extension was unavailable on several Android devices powered by GLES 3.2. See bug 41459397.Quest Browser: Until Chrome 77, this extension was unavailable on several Android devices powered by GLES 3.2. See bug 41459397.
api.HTMLCanvasElement.getContext.webgl2_context.options_powerPreference_parameter 📋Firefox10/23/2018 Chrome6/4/2019224
Chrome: Chrome respects the GPU hint on macOS only.Chrome Android: Chrome Android respects the GPU hint on macOS only.Edge: Edge respects the GPU hint on macOS only.Firefox: Firefox respects the GPU hint on macOS only.Quest Browser: Quest Browser respects the GPU hint on macOS only.Opera: Opera respects the GPU hint on macOS only.Opera Android: Opera Android respects the GPU hint on macOS only.Samsung Internet: Samsung Internet respects the GPU hint on macOS only.WebView Android: WebView Android respects the GPU hint on macOS only.
api.HTMLCanvasElement.getContext.webgl_context.options_powerPreference_parameter 📋Firefox10/23/2018 Chrome6/4/2019224
Chrome: Chrome respects the GPU hint on macOS only.Chrome Android: Chrome Android respects the GPU hint on macOS only.Edge: Edge respects the GPU hint on macOS only.Firefox: Firefox respects the GPU hint on macOS only.Quest Browser: Quest Browser respects the GPU hint on macOS only.Opera: Opera respects the GPU hint on macOS only.Opera Android: Opera Android respects the GPU hint on macOS only.Samsung Internet: Samsung Internet respects the GPU hint on macOS only.WebView Android: WebView Android respects the GPU hint on macOS only.
api.KeyframeEffect 📋Firefox10/23/2018 Chrome6/4/2019224
api.KeyframeEffect.KeyframeEffect 📋Firefox10/23/2018 Chrome6/4/2019224
api.KeyframeEffect.target 📋Firefox10/23/2018 Chrome6/4/2019224

2019/5

API First Browser Date Last Browser Date Days Notes
api.InputEvent.data 📋Chrome7/25/2017 Firefox5/21/2019665
api.InputEvent.dataTransfer 📋Chrome7/25/2017 Firefox5/21/2019665
api.Notification.secure_context_required Chrome10/17/2017 Firefox5/21/2019581
api.RTCIceCandidate.usernameFragment 📋Chrome4/23/2019 Firefox5/21/201928
Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox for Android 126, the property was not read-only.
api.WorkerGlobalScope.importScripts.mime_checks Chrome12/4/2018 Firefox5/21/2019168

2019/4

API First Browser Date Last Browser Date Days Notes
api.AudioContext.AudioContext.options_sampleRate_parameter 📋Firefox6/26/2018 Chrome4/23/2019301
api.Element.transitionrun_event 📋Firefox4/19/2017 Chrome4/23/2019734
Internet Explorer: The ontransitionrun event handler property is not supported. To listen to this event, use element.addEventListener('transitionrun', function() {});.Safari: The event handler exists but will never be called.Safari on iOS: The event handler exists but will never be called.WebView on iOS: The event handler exists but will never be called.
api.Element.transitionstart_event 📋Firefox4/19/2017 Chrome4/23/2019734
Internet Explorer: The ontransitionstart event handler property is not supported. To listen to this event, use element.addEventListener('transitionstart', function() {});.Safari: The event handler exists but will never be called.Safari on iOS: The event handler exists but will never be called.WebView on iOS: The event handler exists but will never be called.
api.FeaturePolicy Firefox1/29/2019 Chrome4/23/201984
api.FeaturePolicy.allowedFeatures Firefox1/29/2019 Chrome4/23/201984
api.FeaturePolicy.allowsFeature Firefox1/29/2019 Chrome4/23/201984
api.FeaturePolicy.getAllowlistForFeature Firefox1/29/2019 Chrome4/23/201984
api.RTCRtpSender.setParameters.parameters_encodings_parameter.scaleResolutionDownBy 📋Firefox4/26/2016 Chrome4/23/20191092
api.ServiceWorkerContainer.startMessages 📋Firefox12/11/2018 Chrome4/23/2019133
api.TextEncoder.encodeInto 📋Firefox3/19/2019 Chrome4/23/201935

2019/3

API First Browser Date Last Browser Date Days Notes
api.Event.returnValue 📋Chrome12/11/2008 Firefox3/19/20193750
api.HTMLSlotElement.assignedElements 📋Chrome3/6/2018 Firefox3/19/2019378
api.InputEvent.inputType 📋Chrome7/25/2017 Firefox3/19/2019602
api.MediaDevices.getDisplayMedia 📋Chrome1/29/2019 Firefox3/19/201949
Chrome Android: From Chrome Android 72 to 88, this method was exposed, but always failed with NotAllowedError. See bug 40418135.Edge: Available as a member of Navigator instead of MediaDevices.Firefox: Since Firefox 33 you can capture screen data using getUserMedia(), with a video constraint called mediaSource. Before 52 it relied on a client-configurable list of allowed sites.Firefox for Android: From Firefox Android 66 to 79, this method was exposed, but always failed with NotAllowedError.Quest Browser: From Quest Browser 6.0 to 88, this method was exposed, but always failed with NotAllowedError. See bug 40418135.Opera Android: From Opera Android 51 to 88, this method was exposed, but always failed with NotAllowedError. See bug 40418135.Samsung Internet: From Samsung Internet 11.0 to 88, this method was exposed, but always failed with NotAllowedError. See bug 40418135.WebView Android: From WebView Android 72 to 88, this method was exposed, but always failed with NotAllowedError. See bug 40418135.
api.Window.event 📋Chrome12/11/2008 Firefox3/19/20193750
api.DOMMatrixReadOnly.scaleNonUniform 📋Firefox10/14/2014 Chrome3/12/20191610
api.GamepadButton.touched 📋Firefox8/8/2017 Chrome3/12/2019581
api.RTCRtpReceiver.getContributingSources.audioLevel 📋Firefox3/13/2018 Chrome3/12/2019364
api.RTCRtpReceiver.getSynchronizationSources 📋Firefox3/13/2018 Chrome3/12/2019364
api.RTCRtpReceiver.getSynchronizationSources.audio_tracks_supported Firefox3/13/2018 Chrome3/12/2019364

2019/1

API First Browser Date Last Browser Date Days Notes
api.ByteLengthQueuingStrategy 📋Chrome7/20/2016 Firefox1/29/2019923
Node.js: Available as a part of the stream/web module.
api.ByteLengthQueuingStrategy.ByteLengthQueuingStrategy 📋Chrome7/20/2016 Firefox1/29/2019923
api.ByteLengthQueuingStrategy.highWaterMark 📋Chrome7/20/2016 Firefox1/29/2019923
api.ByteLengthQueuingStrategy.size 📋Chrome7/20/2016 Firefox1/29/2019923
api.CountQueuingStrategy 📋Chrome7/20/2016 Firefox1/29/2019923
Node.js: Available as a part of the stream/web module.
api.CountQueuingStrategy.CountQueuingStrategy 📋Chrome7/20/2016 Firefox1/29/2019923
api.CountQueuingStrategy.highWaterMark 📋Chrome7/20/2016 Firefox1/29/2019923
api.CountQueuingStrategy.size 📋Chrome7/20/2016 Firefox1/29/2019923
api.DeprecationReportBody 📋Chrome9/4/2018 Firefox1/29/2019147
Firefox: Not supported in workers
api.DeprecationReportBody.anticipatedRemoval 📋Chrome9/4/2018 Firefox1/29/2019147
api.DeprecationReportBody.columnNumber 📋Chrome9/4/2018 Firefox1/29/2019147
api.DeprecationReportBody.id 📋Chrome9/4/2018 Firefox1/29/2019147
api.DeprecationReportBody.lineNumber 📋Chrome9/4/2018 Firefox1/29/2019147
api.DeprecationReportBody.message 📋Chrome9/4/2018 Firefox1/29/2019147
api.DeprecationReportBody.sourceFile 📋Chrome9/4/2018 Firefox1/29/2019147
api.FetchEvent.resultingClientId 📋Chrome1/29/2019 Firefox1/29/2019
api.HTMLMarqueeElement 📋Chrome12/11/2008 Firefox1/29/20193701
Firefox: Before Firefox 65, <marquee> implemented the HTMLDivElement interface.Firefox for Android: Before Firefox for Android 65, <marquee> implemented the HTMLDivElement interface.
api.HTMLMarqueeElement.behavior 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.bgColor 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.direction 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.height 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.hspace 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.loop 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.scrollAmount 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.scrollDelay 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.start 📋Chrome12/11/2008 Firefox1/29/20193701
api.HTMLMarqueeElement.stop 📋Chrome12/11/2008 Firefox1/29/20193701
api.HTMLMarqueeElement.trueSpeed 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.vspace 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLMarqueeElement.width 📋Chrome3/8/2011 Firefox1/29/20192884
api.HTMLScriptElement.referrerPolicy 📋Chrome10/16/2018 Firefox1/29/2019105
api.MediaRecorder.pause_event 📋Chrome3/2/2016 Firefox1/29/20191063
api.MediaRecorder.resume_event 📋Chrome3/2/2016 Firefox1/29/20191063
api.ReadableStream 📋Chrome5/19/2015 Firefox1/29/20191351
Node.js: Available as a part of the stream/web module.
api.ReadableStream.ReadableStream 📋Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStream.cancel 📋Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStream.getReader 📋Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStream.locked 📋Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStream.tee 📋Chrome7/20/2016 Firefox1/29/2019923
Node.js: Before 18.10.0 or 16.18.0, teeing a readable byte stream is not supported.
api.ReadableStreamDefaultController 📋Chrome7/20/2016 Firefox1/29/2019923
Deno: ReadableStreamDefaultController is not exposed on the global scope.Node.js: Available as a part of the stream/web module.
api.ReadableStreamDefaultController.close 📋Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController.desiredSize 📋Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController.enqueue 📋Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultController.error 📋Chrome7/20/2016 Firefox1/29/2019923
api.ReadableStreamDefaultReader 📋Chrome5/19/2015 Firefox1/29/20191351
Deno: ReadableStreamDefaultReader is not exposed on the global scope.Node.js: Available as a part of the stream/web module.
api.ReadableStreamDefaultReader.cancel 📋Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStreamDefaultReader.closed 📋Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStreamDefaultReader.read 📋Chrome5/19/2015 Firefox1/29/20191351
api.ReadableStreamDefaultReader.releaseLock 📋Chrome5/19/2015 Firefox1/29/20191351
api.Report 📋Chrome9/4/2018 Firefox1/29/2019147
Firefox: Worker support added in version 77
api.Report.body 📋Chrome9/4/2018 Firefox1/29/2019147
api.Report.type 📋Chrome9/4/2018 Firefox1/29/2019147
api.Report.url 📋Chrome9/4/2018 Firefox1/29/2019147
api.ReportBody 📋Chrome9/4/2018 Firefox1/29/2019147
api.ReportingObserver 📋Chrome9/4/2018 Firefox1/29/2019147
api.ReportingObserver.ReportingObserver 📋Chrome9/4/2018 Firefox1/29/2019147
api.ReportingObserver.disconnect 📋Chrome9/4/2018 Firefox1/29/2019147
api.ReportingObserver.observe 📋Chrome9/4/2018 Firefox1/29/2019147
api.ReportingObserver.takeRecords 📋Chrome9/4/2018 Firefox1/29/2019147
api.Request.Request.response_body_readablestream Chrome5/19/2015 Firefox1/29/20191351
api.Request.credentials.default_same-origin Firefox6/26/2018 Chrome1/29/2019217
api.Response.body 📋Chrome5/19/2015 Firefox1/29/20191351
api.Window.open.once_per_event Chrome11/6/2012 Firefox1/29/20192275
api.createImageBitmap.svgimageelement_as_source_image Chrome6/5/2017 Firefox1/29/2019603

2018/12

API First Browser Date Last Browser Date Days Notes
api.Document.exitFullscreen 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.exitFullscreen.returns_promise Chrome9/4/2018 Firefox12/11/201898
api.Document.fullscreen 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenElement 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenEnabled 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenchange_event 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Document.fullscreenerror_event 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Element.fullscreenchange_event 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Element.fullscreenerror_event 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.
api.Element.requestFullscreen 📋Chrome12/4/2018 Firefox12/11/20187
Firefox: Before Firefox 44, Firefox incorrectly allowed elements inside a <frame> or <object> element to request, and to be granted, fullscreen. In Firefox 44 and onwards this has been fixed: only elements in the top-level document or in an <iframe> element with the allowfullscreen attribute can be displayed fullscreen.Firefox for Android: Before Firefox for Android 44, Firefox for Android incorrectly allowed elements inside a <frame> or <object> element to request, and to be granted, fullscreen. In Firefox for Android 44 and onwards this has been fixed: only elements in the top-level document or in an <iframe> element with the allowfullscreen attribute can be displayed fullscreen.Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone. Shows an overlay button which can not be disabled.
api.Element.requestFullscreen.returns_promise Chrome12/4/2018 Firefox12/11/20187
api.RTCRtpSender.setParameters 📋Chrome7/24/2018 Firefox12/11/2018140
Firefox: Before Firefox 64, changes to parameters that should update live would not do so.Firefox for Android: Before Firefox for Android 64, changes to parameters that should update live would not do so.
api.ShadowRoot.fullscreenElement 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.
api.Window.screenLeft 📋Chrome12/11/2008 Firefox12/11/20183652
api.Window.screenTop 📋Chrome12/11/2008 Firefox12/11/20183652
api.XMLHttpRequest.getAllResponseHeaders.header_names_lowercase Chrome7/25/2017 Firefox12/11/2018504
api.Permissions.permission_persistent-storage Firefox4/19/2017 Chrome12/4/2018594
api.SpeechSynthesisErrorEvent.SpeechSynthesisErrorEvent 📋Firefox9/20/2016 Chrome12/4/2018805
api.SpeechSynthesisEvent.SpeechSynthesisEvent 📋Firefox9/20/2016 Chrome12/4/2018805
api.URL.toJSON 📋Firefox6/13/2017 Chrome12/4/2018539
api.console.timeLog_static 📋Firefox9/5/2018 Chrome12/4/201890

2018/10

API First Browser Date Last Browser Date Days Notes
api.Clipboard 📋Chrome4/17/2018 Firefox10/23/2018189
api.Clipboard.writeText 📋Chrome4/17/2018 Firefox10/23/2018189
Chrome: From version 107, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Chrome: Before version 107, the user must grant the clipboard-write permission.Chrome Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Chrome Android: Before version 107, the user must grant the clipboard-write permission.Edge: From version 107, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Edge: Before version 107, the user must grant the clipboard-write permission.Firefox: This method must be called within user gesture event handlers.Firefox: Web extensions with the clipboardWrite permission in their manifest can write data without a user gesture.Firefox for Android: This method must be called within user gesture event handlers.Firefox for Android: Web extensions with the clipboardWrite permission in their manifest can write data without a user gesture.Quest Browser: From version false, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Quest Browser: Before version false, the user must grant the clipboard-write permission.Opera: From version 93, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Opera: Before version 93, the user must grant the clipboard-write permission.Opera Android: From version 73, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Opera Android: Before version 73, the user must grant the clipboard-write permission.Safari: This method must be called within user gesture event handlers.Safari on iOS: This method must be called within user gesture event handlers.Samsung Internet: From version 21.0, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.Samsung Internet: Before version 21.0, the user must grant the clipboard-write permission.WebView Android: From version 107, this method must be called within user gesture event handlers, or the user must grant the clipboard-write permission.WebView Android: Before version 107, the user must grant the clipboard-write permission.WebView on iOS: This method must be called within user gesture event handlers.
api.CustomElementRegistry 📋Chrome10/12/2016 Firefox10/23/2018741
api.CustomElementRegistry.builtin_element_support Chrome5/29/2018 Firefox10/23/2018147
api.CustomElementRegistry.define 📋Chrome10/12/2016 Firefox10/23/2018741
api.CustomElementRegistry.get 📋Chrome10/12/2016 Firefox10/23/2018741
Safari: Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See bug 182671.Safari on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See bug 182671.WebView on iOS: Supports 'Autonomous custom elements' but not 'Customized built-in elements'. See bug 182671.
api.CustomElementRegistry.upgrade 📋Chrome7/24/2018 Firefox10/23/201891
api.CustomElementRegistry.whenDefined 📋Chrome10/12/2016 Firefox10/23/2018741
api.Element.assignedSlot 📋Chrome8/31/2016 Firefox10/23/2018783
api.Element.attachShadow 📋Chrome8/31/2016 Firefox10/23/2018783
api.Element.securitypolicyviolation_event 📋Chrome3/3/2015 Firefox10/23/20181330
api.Element.shadowRoot 📋Chrome5/20/2014 Firefox10/23/20181617
api.Element.slot 📋Chrome8/31/2016 Firefox10/23/2018783
api.Element.toggleAttribute 📋Chrome9/4/2018 Firefox10/23/201849
api.HTMLImageElement.decoding 📋Chrome3/6/2018 Firefox10/23/2018231
api.HTMLSlotElement 📋Chrome8/31/2016 Firefox10/23/2018783
api.HTMLSlotElement.assignedNodes 📋Chrome8/31/2016 Firefox10/23/2018783
api.HTMLSlotElement.name 📋Chrome8/31/2016 Firefox10/23/2018783
api.HTMLSlotElement.slotchange_event 📋Chrome8/31/2016 Firefox10/23/2018783
Safari: The onslotchange event handler property is not supported.Safari on iOS: The onslotchange event handler property is not supported.WebView on iOS: The onslotchange event handler property is not supported.
api.MediaCapabilities 📋Chrome4/17/2018 Firefox10/23/2018189
api.MediaCapabilities.decodingInfo 📋Chrome4/17/2018 Firefox10/23/2018189
Chrome: codecs string can contain any subset of optional parameters (should be all or none).Chrome: Errors if codecs string contains unexpected characters (should evaluate string up to character).Chrome Android: codecs string can contain any subset of optional parameters (should be all or none).Chrome Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).Edge: codecs string can contain any subset of optional parameters (should be all or none).Edge: Errors if codecs string contains unexpected characters (should evaluate string up to character).Firefox: The webrtc value of the type option is named transmission.Firefox: Before Firefox 101, decodingInfo() ignored codecs parameter options for av01 codecs (treating them as av1).Firefox for Android: The webrtc value of the type option is named transmission.Firefox for Android: Before Firefox for Android 101, decodingInfo() ignored codecs parameter options for av01 codecs (treating them as av1).Quest Browser: codecs string can contain any subset of optional parameters (should be all or none).Quest Browser: Errors if codecs string contains unexpected characters (should evaluate string up to character).Opera: codecs string can contain any subset of optional parameters (should be all or none).Opera: Errors if codecs string contains unexpected characters (should evaluate string up to character).Opera Android: codecs string can contain any subset of optional parameters (should be all or none).Opera Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).Samsung Internet: codecs string can contain any subset of optional parameters (should be all or none).Samsung Internet: Errors if codecs string contains unexpected characters (should evaluate string up to character).WebView Android: codecs string can contain any subset of optional parameters (should be all or none).WebView Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).
api.Navigator.clipboard 📋Chrome4/17/2018 Firefox10/23/2018189
api.Navigator.mediaCapabilities 📋Chrome4/17/2018 Firefox10/23/2018189
api.RTCDataChannel.sctp_sdp_21 Chrome4/19/2017 Firefox10/23/2018552
api.SVGImageElement.decoding 📋Chrome3/6/2018 Firefox10/23/2018231
api.SecurityPolicyViolationEvent 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.SecurityPolicyViolationEvent 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.blockedURI 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.columnNumber 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.disposition 📋Chrome1/25/2017 Firefox10/23/2018636
api.SecurityPolicyViolationEvent.documentURI 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.effectiveDirective 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.lineNumber 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.originalPolicy 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.referrer 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.sample 📋Chrome6/5/2017 Firefox10/23/2018505
api.SecurityPolicyViolationEvent.sourceFile 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.statusCode 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.violatedDirective 📋Chrome3/3/2015 Firefox10/23/20181330
api.SecurityPolicyViolationEvent.worker_support Chrome1/25/2017 Firefox10/23/2018636
api.ShadowRoot 📋Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.activeElement 📋Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.elementFromPoint Chrome8/31/2016 Firefox10/23/2018783
Chrome: Before Chrome 66, this method returned null when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned null when the element was a child of a host node. See bug 40537452.Quest Browser: Before Quest Browser 5.0, this method returned null when the element was a child of a host node. See bug 40537452.Opera: Before Opera 53, this method returned null when the element was a child of a host node. See bug 40537452.Opera Android: Before Opera Android 47, this method returned null when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned null when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned null when the element was a child of a host node. See bug 40537452.
api.ShadowRoot.elementsFromPoint Chrome8/31/2016 Firefox10/23/2018783
Chrome: Before Chrome 66, this method returned null when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned null when the element was a child of a host node. See bug 40537452.Quest Browser: Before Quest Browser 5.0, this method returned null when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned null when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned null when the element was a child of a host node. See bug 40537452.
api.ShadowRoot.host 📋Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.innerHTML 📋Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.mode 📋Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.pointerLockElement 📋Chrome8/31/2016 Firefox10/23/2018783
api.ShadowRoot.styleSheets 📋Chrome8/31/2016 Firefox10/23/2018783
api.SourceBuffer.changeType 📋Chrome10/16/2018 Firefox10/23/20187
Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.Text.assignedSlot 📋Chrome8/31/2016 Firefox10/23/2018783
api.TextDecoder.ignoreBOM 📋Chrome10/7/2014 Firefox10/23/20181477
api.Window.customElements 📋Chrome10/12/2016 Firefox10/23/2018741
api.WorkerGlobalScope.securitypolicyviolation_event 📋Chrome3/3/2015 Firefox10/23/20181330
api.DedicatedWorkerGlobalScope.name 📋Firefox8/8/2017 Chrome10/16/2018434
api.RTCPeerConnection.currentLocalDescription 📋Firefox6/25/2013 Chrome10/16/20181939
api.RTCPeerConnection.currentRemoteDescription 📋Firefox11/14/2017 Chrome10/16/2018336
api.RTCPeerConnection.getConfiguration 📋Firefox6/25/2013 Chrome10/16/20181939
api.RTCPeerConnection.pendingLocalDescription 📋Firefox6/25/2013 Chrome10/16/20181939
api.RTCPeerConnection.pendingRemoteDescription 📋Firefox6/25/2013 Chrome10/16/20181939
api.SharedWorker.SharedWorker.options_name_parameter Firefox8/8/2017 Chrome10/16/2018434
api.Worker.Worker.options_name_parameter Firefox8/8/2017 Chrome10/16/2018434

2018/9

API First Browser Date Last Browser Date Days Notes
api.DOMMatrixReadOnly.DOMMatrixReadOnly 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMMatrixReadOnly.toJSON 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMPoint.fromPoint_static 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMPointReadOnly.DOMPointReadOnly 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMPointReadOnly.fromPoint_static 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMPointReadOnly.toJSON 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMQuad.getBounds 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMQuad.toJSON 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMRectReadOnly.DOMRectReadOnly 📋Chrome9/5/2017 Firefox9/5/2018365
api.DOMRectReadOnly.toJSON 📋Chrome9/5/2017 Firefox9/5/2018365
api.DataTransfer.DataTransfer 📋Chrome6/5/2017 Firefox9/5/2018457
api.Event.srcElement 📋Chrome12/11/2008 Firefox9/5/20183555
api.RTCDataChannel.maxPacketLifeTime 📋Chrome1/25/2017 Firefox9/5/2018588
api.RTCDataChannel.maxRetransmits 📋Chrome10/1/2013 Firefox9/5/20181800
api.console.countReset_static 📋Chrome7/24/2018 Firefox9/5/201843
api.RTCPeerConnection.addTransceiver 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCPeerConnection.addTransceiver.init_direction_parameter Firefox3/13/2018 Chrome9/4/2018175
api.RTCPeerConnection.addTransceiver.init_streams_parameter Firefox3/13/2018 Chrome9/4/2018175
api.RTCPeerConnection.getTransceivers 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCRtpSender.getParameters.return_object_property_encodings 📋Firefox4/26/2016 Chrome9/4/2018861
api.RTCRtpSender.getParameters.return_object_property_headerExtensions 📋Firefox4/26/2016 Chrome9/4/2018861
Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.getParameters.return_object_property_rtcp 📋Firefox4/26/2016 Chrome9/4/2018861
Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.setParameters.parameters_encodings_parameter 📋Firefox4/26/2016 Chrome9/4/2018861
api.RTCRtpSender.setParameters.parameters_encodings_parameter.maxBitrate 📋Firefox4/26/2016 Chrome9/4/2018861
api.RTCRtpSender.setParameters.parameters_encodings_parameter.priority 📋Firefox4/26/2016 Chrome9/4/2018861
Firefox: In version 110 and later the default priority is low.Firefox for Android: In version 110 and later the default priority is low.
api.RTCRtpSender.setParameters.parameters_headerExtensions_parameter 📋Firefox4/26/2016 Chrome9/4/2018861
Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpSender.setParameters.parameters_rtcp_parameter 📋Firefox4/26/2016 Chrome9/4/2018861
Firefox: The property is defined but not implemented/used.Firefox for Android: The property is defined but not implemented/used.
api.RTCRtpTransceiver 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCRtpTransceiver.currentDirection 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCRtpTransceiver.direction 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCRtpTransceiver.mid 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCRtpTransceiver.receiver 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCRtpTransceiver.sender 📋Firefox3/13/2018 Chrome9/4/2018175
api.RTCRtpTransceiver.stopped Firefox3/13/2018 Chrome9/4/2018175
api.RTCTrackEvent.transceiver 📋Firefox3/13/2018 Chrome9/4/2018175
api.Request.Request.cross_origin_stripped Firefox6/13/2017 Chrome9/4/2018448
api.Worker.worker_support Firefox12/1/2014 Chrome9/4/20181373
Chrome: Not available in Shared Workers. See bug 40695450.Chrome Android: Not available in Shared Workers. See bug 40695450.Edge: Not available in Shared Workers. See bug 40695450.Quest Browser: Not available in Shared Workers. See bug 40695450.Opera: Not available in Shared Workers. See bug 40695450.Opera Android: Not available in Shared Workers. See bug 40695450.Safari: Not available in Shared Workers. See bug 265263.Safari on iOS: Not available in Shared Workers. See bug 265263.Samsung Internet: Not available in Shared Workers. See bug 40695450.WebView Android: Not available in Shared Workers. See bug 40695450.WebView on iOS: Not available in Shared Workers. See bug 265263.

2018/7

API First Browser Date Last Browser Date Days Notes
api.AnimationEvent.pseudoElement 📋Firefox8/6/2013 Chrome7/24/20181813
api.CanvasPattern.setTransform 📋Firefox10/14/2014 Chrome7/24/20181379
api.GamepadHapticActuator 📋Firefox8/8/2017 Chrome7/24/2018350
api.GamepadHapticActuator.type Firefox8/8/2017 Chrome7/24/2018350
api.Path2D.addPath 📋Firefox12/1/2014 Chrome7/24/20181331
api.RTCRtpSender.getParameters 📋Firefox4/26/2016 Chrome7/24/2018819
api.ServiceWorkerRegistration.updateViaCache 📋Firefox11/14/2017 Chrome7/24/2018252

2018/6

API First Browser Date Last Browser Date Days Notes
api.DOMTokenList.replace.boolean_value Chrome5/29/2018 Firefox6/26/201828
api.Document.anchors 📋Chrome12/11/2008 Firefox6/26/20183484
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.applets 📋Chrome12/11/2008 Firefox6/26/20183484
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.embeds 📋Chrome7/16/2014 Firefox6/26/20181441
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.forms 📋Chrome12/11/2008 Firefox6/26/20183484
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.head 📋Chrome1/25/2010 Firefox6/26/20183074
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.
api.Document.images 📋Chrome12/11/2008 Firefox6/26/20183484
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.links 📋Chrome12/11/2008 Firefox6/26/20183484
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.plugins 📋Chrome7/16/2014 Firefox6/26/20181441
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.scripts 📋Chrome7/16/2014 Firefox6/26/20181441
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.EventTarget.addEventListener.options_parameter.options_passive_parameter_default_true_touch Chrome12/1/2016 Firefox6/26/2018572
api.PerformanceResourceTiming.serverTiming 📋Chrome3/6/2018 Firefox6/26/2018112
api.PerformanceServerTiming 📋Chrome3/6/2018 Firefox6/26/2018112
api.PerformanceServerTiming.description 📋Chrome3/6/2018 Firefox6/26/2018112
api.PerformanceServerTiming.duration 📋Chrome3/6/2018 Firefox6/26/2018112
api.PerformanceServerTiming.name 📋Chrome3/6/2018 Firefox6/26/2018112
api.PerformanceServerTiming.toJSON 📋Chrome3/6/2018 Firefox6/26/2018112
api.Request.destination 📋Chrome3/6/2018 Firefox6/26/2018112
api.SVGGeometryElement.getPointAtLength 📋Chrome1/25/2017 Firefox6/26/2018517
Chrome: Only supported for SVGPathElement, not all SVGGeometryElement objects.Chrome Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Edge: Only supported for SVGPathElement, not all SVGGeometryElement objects.Firefox: Only supported for SVGPathElement, not all SVGGeometryElement objects.Firefox for Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Internet Explorer: Only supported for SVGPathElement, not all SVGGeometryElement objects.Opera: Only supported for SVGPathElement, not all SVGGeometryElement objects.Opera Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Safari: Only supported for SVGPathElement, not all SVGGeometryElement objects.Safari on iOS: Only supported for SVGPathElement, not all SVGGeometryElement objects.Samsung Internet: Only supported for SVGPathElement, not all SVGGeometryElement objects.WebView Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.WebView on iOS: Only supported for SVGPathElement, not all SVGGeometryElement objects.
api.SVGGeometryElement.getTotalLength 📋Chrome1/25/2017 Firefox6/26/2018517
Chrome: Only supported for SVGPathElement, not all SVGGeometryElement objects.Chrome Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Edge: Only supported for SVGPathElement, not all SVGGeometryElement objects.Firefox: Only supported for SVGPathElement, not all SVGGeometryElement objects.Firefox for Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Internet Explorer: Only supported for SVGPathElement, not all SVGGeometryElement objects.Opera: Only supported for SVGPathElement, not all SVGGeometryElement objects.Opera Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Safari: Only supported for SVGPathElement, not all SVGGeometryElement objects.Safari on iOS: Only supported for SVGPathElement, not all SVGGeometryElement objects.Samsung Internet: Only supported for SVGPathElement, not all SVGGeometryElement objects.WebView Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.WebView on iOS: Only supported for SVGPathElement, not all SVGGeometryElement objects.
api.SVGGeometryElement.pathLength 📋Chrome3/9/2017 Firefox6/26/2018474
Chrome: Only supported for SVGPathElement, not all SVGGeometryElement objects.Chrome Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Firefox: Only supported for SVGPathElement, not all SVGGeometryElement objects.Firefox for Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Opera: Only supported for SVGPathElement, not all SVGGeometryElement objects.Opera Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.Safari: Only supported for SVGPathElement, not all SVGGeometryElement objects.Safari on iOS: Only supported for SVGPathElement, not all SVGGeometryElement objects.Samsung Internet: Only supported for SVGPathElement, not all SVGGeometryElement objects.WebView Android: Only supported for SVGPathElement, not all SVGGeometryElement objects.WebView on iOS: Only supported for SVGPathElement, not all SVGGeometryElement objects.

2018/5

API First Browser Date Last Browser Date Days Notes
api.AuthenticatorAssertionResponse 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAssertionResponse.authenticatorData 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAssertionResponse.signature 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAssertionResponse.userHandle 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAttestationResponse 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorAttestationResponse.attestationObject 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorResponse 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.AuthenticatorResponse.clientDataJSON 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.CredentialsContainer.create.publicKey_option 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.create.publicKey_option.attestation 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.create.publicKey_option.attestation.direct 📋Firefox5/9/2018 Chrome5/29/201820
Firefox for Android: credentialCreationData.attestationConveyancePreferenceOption value "direct" is not supported. See https://bugzil.la/1550164
api.CredentialsContainer.create.publicKey_option.attestation.enterprise 📋Firefox5/9/2018 Chrome5/29/201820
Firefox for Android: credentialCreationData.attestationConveyancePreferenceOption value "enterprise" is not supported. See https://bugzil.la/1550164
api.CredentialsContainer.create.publicKey_option.attestation.indirect 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.create.publicKey_option.attestation.none 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.create.publicKey_option.extensions 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.create.publicKey_option.extensions.appidExclude 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.get.publicKey_option 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.get.publicKey_option.extensions 📋Firefox5/9/2018 Chrome5/29/201820
api.CredentialsContainer.get.publicKey_option.extensions.appid 📋Firefox5/9/2018 Chrome5/29/201820
api.MediaDevices.getSupportedConstraints.return_object_property_autoGainControl 📋Firefox8/8/2017 Chrome5/29/2018294
api.MediaDevices.getSupportedConstraints.return_object_property_noiseSuppression 📋Firefox8/8/2017 Chrome5/29/2018294
api.MediaStreamTrack.applyConstraints.autoGainControl_constraint 📋Firefox8/8/2017 Chrome5/29/2018294
api.MediaStreamTrack.applyConstraints.noiseSuppression_constraint 📋Firefox8/8/2017 Chrome5/29/2018294
api.PublicKeyCredential 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.getClientExtensionResults 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.isUserVerifyingPlatformAuthenticatorAvailable_static 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.rawId 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.PublicKeyCredential.response 📋Firefox5/9/2018 Chrome5/29/201820
Firefox: Only supports USB U2F tokens.Firefox for Android: Only supports USB U2F tokens.
api.RTCPeerConnection.getStats.selector_parameter Firefox2/4/2014 Chrome5/29/20181575
api.RTCRtpReceiver.getStats 📋Firefox8/8/2017 Chrome5/29/2018294
api.RTCRtpSender.getStats 📋Firefox8/8/2017 Chrome5/29/2018294
api.Credential 📋Chrome5/25/2016 Firefox5/9/2018714
api.Credential.id 📋Chrome5/25/2016 Firefox5/9/2018714
api.Credential.type 📋Chrome5/25/2016 Firefox5/9/2018714
api.CredentialsContainer 📋Chrome5/25/2016 Firefox5/9/2018714
api.CredentialsContainer.create 📋Chrome7/25/2017 Firefox5/9/2018288
api.CredentialsContainer.get 📋Chrome5/25/2016 Firefox5/9/2018714
api.CredentialsContainer.preventSilentAccess 📋Chrome7/25/2017 Firefox5/9/2018288
Safari: This method exists, but always rejected with a NotSupportedError exception.Safari on iOS: This method exists, but always rejected with a NotSupportedError exception.WebView on iOS: This method exists, but always rejected with a NotSupportedError exception.
api.CredentialsContainer.store 📋Chrome5/25/2016 Firefox5/9/2018714
api.Document.body 📋Chrome12/11/2008 Firefox5/9/20183436
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.
api.HTMLScriptElement.noModule 📋Chrome9/5/2017 Firefox5/9/2018246
api.Navigator.credentials 📋Chrome5/25/2016 Firefox5/9/2018714
api.Navigator.webdriver 📋Chrome12/6/2017 Firefox5/9/2018154
api.PerformanceEntry.worker_support Chrome10/17/2017 Firefox5/9/2018204
Node.js: Available as a part of the perf_hooks module.
api.PerformanceObserver.takeRecords 📋Chrome3/6/2018 Firefox5/9/201864
api.PerformanceResourceTiming.worker_support Chrome5/19/2015 Firefox5/9/20181086

2018/4

API First Browser Date Last Browser Date Days Notes
api.AbortController 📋Firefox11/14/2017 Chrome4/17/2018154
Safari: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.Safari on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.WebView on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.
api.AbortController.AbortController 📋Firefox11/14/2017 Chrome4/17/2018154
Safari: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.Safari on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.WebView on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.
api.AbortController.abort 📋Firefox11/14/2017 Chrome4/17/2018154
Node.js: The optional reason argument is not supported.Node.js: The optional reason argument is not supported.Safari: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.Safari on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.WebView on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.
api.AbortController.signal 📋Firefox11/14/2017 Chrome4/17/2018154
Safari: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.Safari on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.WebView on iOS: Even though window.AbortController is defined, it doesn't really abort fetch requests. See bug 174980.
api.AbortSignal 📋Firefox11/14/2017 Chrome4/17/2018154
api.AbortSignal.abort_event 📋Firefox11/14/2017 Chrome4/17/2018154
api.AbortSignal.aborted 📋Firefox11/14/2017 Chrome4/17/2018154
api.FetchEvent.respondWith.networkerror_on_same-origin_cors Firefox3/13/2018 Chrome4/17/201835
api.HTMLCanvasElement.getContext.bitmaprenderer_context Firefox4/26/2016 Chrome4/17/2018721
api.HTMLSelectElement.autocomplete 📋Firefox3/13/2018 Chrome4/17/201835
api.HTMLTextAreaElement.autocomplete 📋Firefox3/13/2018 Chrome4/17/201835
api.ImageBitmapRenderingContext 📋Firefox4/26/2016 Chrome4/17/2018721
api.ImageBitmapRenderingContext.transferFromImageBitmap 📋Firefox11/15/2016 Chrome4/17/2018518
api.RTCRtpSender.dtmf 📋Firefox3/7/2017 Chrome4/17/2018406
api.Request.signal 📋Firefox11/14/2017 Chrome4/17/2018154
api.fetch.init_signal_parameter Firefox11/14/2017 Chrome4/17/2018154

2018/3

API First Browser Date Last Browser Date Days Notes
api.CSSNamespaceRule.namespaceURI 📋Chrome12/1/2015 Firefox3/13/2018833
api.CSSNamespaceRule.prefix 📋Chrome12/1/2015 Firefox3/13/2018833
api.DOMMatrixReadOnly.isIdentity 📋Chrome9/5/2017 Firefox3/13/2018189
api.Element.gotpointercapture_event 📋Chrome3/9/2017 Firefox3/13/2018369
api.Element.hasPointerCapture 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.lostpointercapture_event 📋Chrome3/9/2017 Firefox3/13/2018369
api.Element.pointercancel_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.pointerdown_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.pointerenter_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.pointerleave_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.pointermove_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.pointerout_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.pointerover_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.pointerup_event 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.releasePointerCapture 📋Chrome12/1/2016 Firefox3/13/2018467
api.Element.setPointerCapture 📋Chrome12/1/2016 Firefox3/13/2018467
Firefox: Before Firefox 82, setPointerCapture() throws InvalidPointerId for an invalid pointerId argument. From Firefox 82, it throws the specified NotFoundError exception. See bug 1662124.Firefox for Android: Before Firefox 82, setPointerCapture() throws InvalidPointerId for an invalid pointerId argument. From Firefox 82, it throws the specified NotFoundError exception. See bug 1662124.
api.Event.composedPath 📋Chrome8/31/2016 Firefox3/13/2018559
Node.js: Returns an array with either the event itself or empty.Node.js: This is not used in Node.js and is provided purely for completeness.
api.EventTarget.EventTarget 📋Chrome1/23/2018 Firefox3/13/201849
api.MediaStreamTrack.mute_event 📋Chrome3/26/2013 Firefox3/13/20181813
api.MediaStreamTrack.muted 📋Chrome10/7/2014 Firefox3/13/20181253
Firefox: Does not currently track the microphone's muted state from the operating system, see bug 1739163.Firefox for Android: Does not currently track the microphone's muted state from the operating system, see bug 1739163.
api.MediaStreamTrack.unmute_event 📋Chrome3/26/2013 Firefox3/13/20181813
api.MouseEvent.relatedTarget.drag_events 📋Chrome7/25/2017 Firefox3/13/2018231
api.Navigator.maxTouchPoints 📋Chrome5/20/2014 Firefox3/13/20181393
api.PointerEvent 📋Chrome12/1/2016 Firefox3/13/2018467
Internet Explorer: See MSDN Pointer events updates.
api.PointerEvent.PointerEvent 📋Chrome12/1/2016 Firefox3/13/2018467
Internet Explorer: See MSDN Pointer events updates.
api.PointerEvent.getCoalescedEvents 📋Chrome4/19/2017 Firefox3/13/2018328
Firefox for Android: The method always returns an empty array, regardless of the user's actions.
api.PointerEvent.height 📋Chrome12/1/2016 Firefox3/13/2018467
Internet Explorer: Returns values in screen pixels instead of CSS document pixels.
api.PointerEvent.isPrimary 📋Chrome12/1/2016 Firefox3/13/2018467
api.PointerEvent.pointerId 📋Chrome12/1/2016 Firefox3/13/2018467
api.PointerEvent.pointerType 📋Chrome12/1/2016 Firefox3/13/2018467
Internet Explorer: Returns an integer enumeration instead of a string.
api.PointerEvent.pressure 📋Chrome12/1/2016 Firefox3/13/2018467
Internet Explorer: Returns 0 instead of 0.5 on hardware that doesn't support pressure.
api.PointerEvent.tangentialPressure 📋Chrome3/9/2017 Firefox3/13/2018369
api.PointerEvent.tiltX 📋Chrome12/1/2016 Firefox3/13/2018467
api.PointerEvent.tiltY 📋Chrome12/1/2016 Firefox3/13/2018467
api.PointerEvent.twist 📋Chrome3/9/2017 Firefox3/13/2018369
api.PointerEvent.width 📋Chrome12/1/2016 Firefox3/13/2018467
Internet Explorer: Returns values in screen pixels instead of CSS document pixels.
api.RTCRtpReceiver.getContributingSources 📋Chrome6/5/2017 Firefox3/13/2018281
api.RTCRtpReceiver.getContributingSources.audio_tracks_supported Chrome6/5/2017 Firefox3/13/2018281
api.RTCRtpReceiver.getContributingSources.source 📋Chrome6/5/2017 Firefox3/13/2018281
api.RTCRtpReceiver.getContributingSources.timestamp 📋Chrome6/5/2017 Firefox3/13/2018281
Firefox: Starting in version 60, the timestamp is correctly computed based on the window's Performance time, rather than Date.getTime().Firefox for Android: Starting in version 60, the timestamp is correctly computed based on the window's Performance time, rather than Date.getTime().
api.Response.Response.body_parameter_optional Chrome1/21/2015 Firefox3/13/20181147
api.CacheStorage.secure_context_required Firefox1/26/2016 Chrome3/6/2018770
api.HTMLAnchorElement.relList 📋Firefox6/10/2014 Chrome3/6/20181365
api.HTMLAreaElement.relList 📋Firefox6/10/2014 Chrome3/6/20181365
api.RTCRtpSender.replaceTrack 📋Firefox12/1/2014 Chrome3/6/20181191

2018/1

API First Browser Date Last Browser Date Days Notes
api.Document.getElementsByName 📋Chrome12/11/2008 Firefox1/23/20183330
Edge: Before Edge 79, this method returns an HTMLCollection, not a NodeList.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Internet Explorer: Returns an HTMLCollection, not a NodeListSafari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.EXT_sRGB 📋Chrome1/21/2015 Firefox1/23/20181098
Firefox: Not supported on Windows.
api.Element.scrollIntoView.options_parameter.block_option 📋Chrome9/5/2017 Firefox1/23/2018140
Firefox: Only values "top" and "bottom", not "nearest" and "center".Firefox for Android: Only values "top" and "bottom", not "nearest" and "center".
api.Element.scrollIntoView.options_parameter.inline_option 📋Chrome9/5/2017 Firefox1/23/2018140
api.FontFace.display 📋Chrome7/25/2017 Firefox1/23/2018182
api.IDBRequest.error.DOMException Chrome1/20/2016 Firefox1/23/2018734
api.IDBTransaction.error.DOMException Chrome1/20/2016 Firefox1/23/2018734
api.PerformanceNavigationTiming 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.domComplete 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.domContentLoadedEventEnd 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.domContentLoadedEventStart 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.domInteractive 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.loadEventEnd 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.loadEventStart 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.redirectCount 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.toJSON 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.type 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.unloadEventEnd 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceNavigationTiming.unloadEventStart 📋Chrome3/9/2017 Firefox1/23/2018320
api.PerformanceResourceTiming.workerStart 📋Chrome10/13/2015 Firefox1/23/2018833
api.RTCPeerConnection.addTrack 📋Firefox6/25/2013 Chrome1/23/20181673
api.RTCPeerConnection.getSenders 📋Firefox12/1/2014 Chrome1/23/20181149
api.RTCPeerConnection.removeTrack 📋Firefox6/25/2013 Chrome1/23/20181673
api.RTCPeerConnection.track_event 📋Firefox6/25/2013 Chrome1/23/20181673
api.RTCRtpSender 📋Firefox12/1/2014 Chrome1/23/20181149
api.RTCRtpSender.track 📋Firefox12/1/2014 Chrome1/23/20181149
api.RTCTrackEvent.RTCTrackEvent 📋Firefox4/26/2016 Chrome1/23/2018637
api.Request.cache 📋Firefox8/2/2016 Chrome1/23/2018539
api.Request.cache.only-if-cached Firefox11/15/2016 Chrome1/23/2018434

2017/12

API First Browser Date Last Browser Date Days Notes
api.EXT_color_buffer_half_float 📋Firefox6/7/2016 Chrome12/6/2017547
Firefox: Not supported on Windows.
api.WEBGL_color_buffer_float 📋Firefox6/10/2014 Chrome12/6/20171275
api.Window.afterprint_event 📋Firefox8/16/2011 Chrome12/6/20172304
api.Window.beforeprint_event 📋Firefox8/16/2011 Chrome12/6/20172304

2017/11

API First Browser Date Last Browser Date Days Notes
api.BroadcastChannel.messageerror_event 📋Chrome7/25/2017 Firefox11/14/2017112
api.DedicatedWorkerGlobalScope.messageerror_event 📋Chrome7/25/2017 Firefox11/14/2017112
api.Document.getSelection 📋Chrome5/21/2009 Firefox11/14/20173099
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.
api.HTMLInputElement.valueAsDate 📋Chrome5/25/2010 Firefox11/14/20172730
api.Headers.iterate_combined_duplicates Chrome3/9/2017 Firefox11/14/2017250
api.Headers.iterate_lexicographically Chrome3/9/2017 Firefox11/14/2017250
api.KeyboardEvent.initKeyboardEvent 📋Chrome12/11/2008 Firefox11/14/20173260
api.MessagePort.messageerror_event 📋Chrome7/25/2017 Firefox11/14/2017112
Node.js: Supports the event, but only via Node EventEmitter.Node.js: Supports the event, but only via Node EventEmitter.
api.Navigator.storage 📋Chrome12/1/2016 Firefox11/14/2017348
api.OfflineAudioContext.OfflineAudioContext.options_parameter Chrome10/17/2017 Firefox11/14/201728
api.PerformanceObserver 📋Chrome7/20/2016 Firefox11/14/2017482
Node.js: Available as a part of the perf_hooks module.
api.PerformanceObserver.PerformanceObserver 📋Chrome7/20/2016 Firefox11/14/2017482
api.PerformanceObserver.disconnect 📋Chrome7/20/2016 Firefox11/14/2017482
api.PerformanceObserver.observe 📋Chrome7/20/2016 Firefox11/14/2017482
api.PerformanceObserver.worker_support Chrome10/17/2017 Firefox11/14/201728
api.PerformanceObserverEntryList 📋Chrome7/20/2016 Firefox11/14/2017482
Node.js: Available as a part of the perf_hooks module.Node.js: Only available as an internal instance, but can be accessed via the first parameter of the PerformanceObserver constructor.
api.PerformanceObserverEntryList.getEntries 📋Chrome7/20/2016 Firefox11/14/2017482
api.PerformanceObserverEntryList.getEntriesByName 📋Chrome7/20/2016 Firefox11/14/2017482
api.PerformanceObserverEntryList.getEntriesByType 📋Chrome7/20/2016 Firefox11/14/2017482
api.Selection.type 📋Chrome12/11/2008 Firefox11/14/20173260
api.StorageManager 📋Chrome12/1/2016 Firefox11/14/2017348
api.StorageManager.estimate 📋Chrome9/5/2017 Firefox11/14/201770
api.StorageManager.persist 📋Chrome12/1/2016 Firefox11/14/2017348
api.StorageManager.persisted 📋Chrome12/1/2016 Firefox11/14/2017348
api.Window.messageerror_event 📋Chrome7/25/2017 Firefox11/14/2017112
api.WorkerNavigator.storage 📋Chrome12/1/2016 Firefox11/14/2017348

2017/10

API First Browser Date Last Browser Date Days Notes
api.Document.visibilitychange_event 📋Firefox9/28/2017 Chrome10/17/201719
Chrome: The onvisibilitychange event handler property is not supported.Chrome: The onvisibilitychange event handler property is not supported.Chrome Android: The onvisibilitychange event handler property is not supported.Chrome Android: The onvisibilitychange event handler property is not supported.Edge: The onvisibilitychange event handler property is not supported.Internet Explorer: The onvisibilitychange event handler property is not supported.Quest Browser: The onvisibilitychange event handler property is not supported.Opera: The onvisibilitychange event handler property is not supported.Opera: The onvisibilitychange event handler property is not supported.Opera: The onvisibilitychange event handler property is not supported.Opera Android: The onvisibilitychange event handler property is not supported.Opera Android: The onvisibilitychange event handler property is not supported.Opera Android: The onvisibilitychange event handler property is not supported.Safari: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari: Before Safari 14, the event does not bubble, so document.addEventListener('visibilitychange', ...) works, but window.addEventListener('visibilitychange', ...) does not.Safari: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari: Before Safari 14, the event does not bubble, so document.addEventListener('visibilitychange', ...) works, but window.addEventListener('visibilitychange', ...) does not.Safari: The onvisibilitychange event handler property is not supported.Safari on iOS: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari on iOS: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari on iOS: Before Safari on iOS 14, the event does not bubble, so document.addEventListener('visibilitychange', ...) works, but window.addEventListener('visibilitychange', ...) does not.Safari on iOS: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.Safari on iOS: Before Safari on iOS 14, the event does not bubble, so document.addEventListener('visibilitychange', ...) works, but window.addEventListener('visibilitychange', ...) does not.Safari on iOS: The onvisibilitychange event handler property is not supported.Samsung Internet: The onvisibilitychange event handler property is not supported.Samsung Internet: The onvisibilitychange event handler property is not supported.WebView Android: The onvisibilitychange event handler property is not supported.WebView Android: The onvisibilitychange event handler property is not supported.WebView on iOS: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.WebView on iOS: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.WebView on iOS: Before WebView on iOS 14, the event does not bubble, so document.addEventListener('visibilitychange', ...) works, but window.addEventListener('visibilitychange', ...) does not.WebView on iOS: Doesn't fire the visibilitychange event when navigating away from a document, so also include code to check for the pagehide event (which does fire for that case in all current browsers). See bug 116769, bug 151234, bug 151610, and bug 194897.WebView on iOS: Before WebView on iOS 14, the event does not bubble, so document.addEventListener('visibilitychange', ...) works, but window.addEventListener('visibilitychange', ...) does not.WebView on iOS: The onvisibilitychange event handler property is not supported.
api.HTMLDataElement 📋Firefox6/25/2013 Chrome10/17/20171575
api.HTMLDataElement.value 📋Firefox6/25/2013 Chrome10/17/20171575
api.HTMLMediaElement.captureStream 📋Firefox8/28/2012 Chrome10/17/20171876
api.HTMLTimeElement 📋Firefox6/25/2013 Chrome10/17/20171575
api.HTMLTimeElement.dateTime 📋Firefox6/25/2013 Chrome10/17/20171575
api.MediaSource.clearLiveSeekableRange 📋Firefox11/15/2016 Chrome10/17/2017336
Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.setLiveSeekableRange 📋Firefox11/15/2016 Chrome10/17/2017336
Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.Performance.timeOrigin 📋Firefox4/19/2017 Chrome10/17/2017181

2017/9

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.drawImage.SVGImageElement_source_image Chrome6/5/2017 Firefox9/28/2017115
api.HTMLButtonElement.labels 📋Chrome9/2/2010 Firefox9/28/20172583
api.HTMLInputElement.labels 📋Chrome9/2/2010 Firefox9/28/20172583
api.HTMLLinkElement.as 📋Chrome4/13/2016 Firefox9/28/2017533
api.HTMLMeterElement.labels 📋Chrome9/2/2010 Firefox9/28/20172583
api.HTMLOutputElement.labels 📋Chrome2/3/2011 Firefox9/28/20172429
api.HTMLProgressElement.labels 📋Chrome9/2/2010 Firefox9/28/20172583
api.HTMLSelectElement.labels 📋Chrome9/2/2010 Firefox9/28/20172583
api.HTMLTextAreaElement.labels 📋Chrome9/2/2010 Firefox9/28/20172583
api.MediaDevices.getSupportedConstraints.return_object_property_channelCount 📋Chrome8/31/2016 Firefox9/28/2017393
api.PerformanceTiming.secureConnectionStart 📋Chrome9/2/2010 Firefox9/28/20172583
api.RTCStatsReport.type_candidate-pair.bytesReceived 📋Chrome4/19/2017 Firefox9/28/2017162
api.RTCStatsReport.type_candidate-pair.bytesSent 📋Chrome4/19/2017 Firefox9/28/2017162
api.RTCStatsReport.type_candidate-pair.nominated 📋Chrome4/19/2017 Firefox9/28/2017162
api.RTCStatsReport.type_candidate-pair.transportId 📋Chrome4/19/2017 Firefox9/28/2017162
api.WEBGL_debug_shaders 📋Chrome12/1/2015 Firefox9/28/2017667
api.WEBGL_debug_shaders.getTranslatedShaderSource 📋Chrome12/1/2015 Firefox9/28/2017667
api.CSS.supports_static.optional_parens Firefox8/8/2017 Chrome9/5/201728
api.DOMMatrix 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.DOMMatrix 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.a 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.b 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.c 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.d 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.e 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.f 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.invertSelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m11 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m12 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m13 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m14 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m21 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m22 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m23 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m24 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m31 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m32 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m33 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m34 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m41 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m42 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m43 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.m44 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.multiplySelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.preMultiplySelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.rotateAxisAngleSelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.rotateFromVectorSelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.rotateSelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.scale3dSelf 📋Firefox10/14/2014 Chrome9/5/20171057
Firefox: Starting in Firefox 69, the first parameter (scale) is now optional with a default value of 1, per the specification. Previously it was required.Firefox for Android: Starting in Firefox for Android 79, the first parameter (scale) is now optional with a default value of 1, per the specification. Previously it was required.
api.DOMMatrix.scaleSelf 📋Firefox10/14/2014 Chrome9/5/20171057
Firefox: Firefox 69 introduced support for the modern six-parameter syntax for scaleSelf(). Previously, it only supported the older three-parameter syntax: scale(scaleX[, originX][, originY]]]).Firefox for Android: Firefox for Android 79 introduced support for the modern six-parameter syntax for scaleSelf(). Previously, it only supported the older three-parameter syntax: scale(scaleX[, originX][, originY]]]).
api.DOMMatrix.setMatrixValue 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.skewXSelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.skewYSelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrix.translateSelf 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.a 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.b 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.c 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.d 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.e 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.f 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.flipX 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.flipY 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.inverse 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.is2D 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m11 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m12 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m13 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m14 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m21 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m22 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m23 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m24 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m31 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m32 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m33 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m34 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m41 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m42 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m43 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.m44 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.multiply 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.rotate 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.rotateAxisAngle 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.rotateFromVector 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.scale 📋Firefox10/14/2014 Chrome9/5/20171057
Firefox: Firefox 69 introduced support for the modern six-parameter syntax for scale(). Previously, it only supported the older three-parameter syntax: scale(scaleX[, originX][, originY]]]).Firefox for Android: Firefox for Android 79 introduced support for the modern six-parameter syntax for scale(). Previously, it only supported the older three-parameter syntax: scale(scaleX[, originX][, originY]]]).
api.DOMMatrixReadOnly.scale3d 📋Firefox10/14/2014 Chrome9/5/20171057
Firefox: Starting in Firefox 69, the first parameter (scale) is now optional with a default value of 1, per the specification. Previously it was required.Firefox for Android: Starting in Firefox for Android 79, the first parameter (scale) is now optional with a default value of 1, per the specification. Previously it was required.
api.DOMMatrixReadOnly.skewX 📋Firefox10/14/2014 Chrome9/5/20171057
Firefox: Before Firefox 69, the sx parameter was required; you may now call skewX() with no inputs. A value of 0 is correctly assumed.Firefox for Android: Before Firefox for Android 79, the sx parameter was required; you may now call skewX() with no inputs. A value of 0 is correctly assumed.
api.DOMMatrixReadOnly.skewY 📋Firefox10/14/2014 Chrome9/5/20171057
Firefox: Before Firefox 69, the sy parameter was required; you may now call skewY() with no inputs. A value of 0 is correctly assumed.Firefox for Android: Before Firefox for Android 79, the sy parameter was required; you may now call skewY() with no inputs. A value of 0 is correctly assumed.
api.DOMMatrixReadOnly.toFloat32Array 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.toFloat64Array 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.toString Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.transformPoint 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMMatrixReadOnly.translate 📋Firefox10/14/2014 Chrome9/5/20171057
api.DOMPoint 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPoint.DOMPoint 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPoint.w 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPoint.x 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPoint.y 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPoint.z 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPointReadOnly 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPointReadOnly.w 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPointReadOnly.x 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPointReadOnly.y 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMPointReadOnly.z 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMQuad 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMQuad.DOMQuad 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMQuad.p1 📋Firefox7/22/2014 Chrome9/5/20171141
Firefox: Before Firefox 69, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.Firefox for Android: Before Firefox for Android 79, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.
api.DOMQuad.p2 📋Firefox7/22/2014 Chrome9/5/20171141
Firefox: Before Firefox 69, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.Firefox for Android: Before Firefox for Android 79, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.
api.DOMQuad.p3 📋Firefox7/22/2014 Chrome9/5/20171141
Firefox: Before Firefox 69, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.Firefox for Android: Before Firefox for Android 79, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.
api.DOMQuad.p4 📋Firefox7/22/2014 Chrome9/5/20171141
Firefox: Before Firefox 69, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.Firefox for Android: Before Firefox for Android 79, the default value of p1 through p4 was undefined; now DOMQuadInit defines these as false.
api.DOMRect 📋Firefox2/4/2014 Chrome9/5/20171309
api.DOMRect.DOMRect 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMRect.x 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMRect.y 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMRectList 📋Firefox2/4/2014 Chrome9/5/20171309
api.DOMRectReadOnly 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMRectReadOnly.x 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMRectReadOnly.y 📋Firefox7/22/2014 Chrome9/5/20171141
api.DOMTokenList.replace 📋Firefox9/20/2016 Chrome9/5/2017350
api.Element.getAttributeNames 📋Firefox3/8/2016 Chrome9/5/2017546
api.Element.scroll 📋Firefox2/24/2015 Chrome9/5/2017924
api.Element.scroll.options_behavior_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scroll.options_left_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scroll.options_top_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollBy 📋Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollBy.options_behavior_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollBy.options_left_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollBy.options_top_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollIntoView.options_parameter 📋Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollTo 📋Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollTo.options_behavior_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollTo.options_left_parameter Firefox2/24/2015 Chrome9/5/2017924
api.Element.scrollTo.options_top_parameter Firefox2/24/2015 Chrome9/5/2017924
api.PerformanceResourceTiming.nextHopProtocol 📋Firefox3/8/2016 Chrome9/5/2017546
api.URLSearchParams.URLSearchParams.record Firefox6/13/2017 Chrome9/5/201784
api.URLSearchParams.sort 📋Firefox6/13/2017 Chrome9/5/201784
api.Window.scroll.options_behavior_parameter Firefox2/24/2015 Chrome9/5/2017924
Safari: Safari does not have support for the smooth scroll behavior.Safari on iOS: Safari on iOS does not have support for the smooth scroll behavior.WebView on iOS: WebView on iOS does not have support for the smooth scroll behavior.
api.Window.scrollBy.options_behavior_parameter Firefox2/24/2015 Chrome9/5/2017924
Safari: Safari does not have support for the smooth scroll behavior.Safari on iOS: Safari on iOS does not have support for the smooth scroll behavior.WebView on iOS: WebView on iOS does not have support for the smooth scroll behavior.
api.Window.scrollTo.options_behavior_parameter Firefox2/24/2015 Chrome9/5/2017924
Safari: Before version 15.4, Safari did not have support for the smooth scroll behavior.Safari on iOS: Before version 15.4, Safari on iOS did not have support for the smooth scroll behavior.WebView on iOS: Before version 15.4, WebView on iOS did not have support for the smooth scroll behavior.

2017/8

API First Browser Date Last Browser Date Days Notes
api.CSSStyleSheet.insertRule.index_parameter_optional Chrome12/11/2008 Firefox8/8/20173162
api.DOMTokenList.remove_duplicates Chrome7/25/2017 Firefox8/8/201714
api.Geolocation.secure_context_required Chrome4/13/2016 Firefox8/8/2017482
WebView Android: Secure context is only required for applications targeting Android Nougat (7) and higher. See bug 40465140.
api.GeolocationCoordinates.secure_context_required Chrome12/1/2015 Firefox8/8/2017616
api.GeolocationPosition.secure_context_required Chrome12/1/2015 Firefox8/8/2017616
api.GeolocationPositionError.secure_context_required Chrome12/1/2015 Firefox8/8/2017616
api.IdleDeadline 📋Chrome12/1/2015 Firefox8/8/2017616
api.IdleDeadline.didTimeout 📋Chrome12/1/2015 Firefox8/8/2017616
api.IdleDeadline.timeRemaining 📋Chrome12/1/2015 Firefox8/8/2017616
api.IntersectionObserver 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserver.IntersectionObserver 📋Chrome5/25/2016 Firefox8/8/2017440
Firefox: Before version 96, the constructor throws a DOMException if the options.rootMargin option is passed an empty string (see bug 1738791).
api.IntersectionObserver.disconnect 📋Chrome5/25/2016 Firefox8/8/2017440
Edge: Available since Windows Insider Preview Build 14986.
api.IntersectionObserver.observe 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserver.root 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserver.rootMargin 📋Chrome5/25/2016 Firefox8/8/2017440
Safari: rootMargin does not work with <iframe>s.Safari on iOS: rootMargin does not work with <iframe>s.WebView on iOS: rootMargin does not work with <iframe>s.
api.IntersectionObserver.takeRecords 📋Chrome5/25/2016 Firefox8/8/2017440
Edge: Available since Windows Insider Preview Build 14986.
api.IntersectionObserver.thresholds 📋Chrome7/20/2016 Firefox8/8/2017384
api.IntersectionObserver.unobserve 📋Chrome5/25/2016 Firefox8/8/2017440
Edge: Available since Windows Insider Preview Build 14986.
api.IntersectionObserverEntry 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserverEntry.boundingClientRect 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserverEntry.intersectionRatio 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserverEntry.intersectionRect 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserverEntry.isIntersecting 📋Chrome4/19/2017 Firefox8/8/2017111
api.IntersectionObserverEntry.rootBounds 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserverEntry.target 📋Chrome5/25/2016 Firefox8/8/2017440
api.IntersectionObserverEntry.time 📋Chrome5/25/2016 Firefox8/8/2017440
api.MediaQueryList.EventTarget_inheritance Chrome11/18/2014 Firefox8/8/2017994
api.MediaQueryList.change_event 📋Chrome11/18/2014 Firefox8/8/2017994
api.MediaQueryListEvent 📋Chrome11/18/2014 Firefox8/8/2017994
api.MediaQueryListEvent.MediaQueryListEvent 📋Chrome11/18/2014 Firefox8/8/2017994
api.MediaQueryListEvent.matches 📋Chrome11/18/2014 Firefox8/8/2017994
api.MediaQueryListEvent.media 📋Chrome11/18/2014 Firefox8/8/2017994
api.Navigator.geolocation.secure_context_required Chrome12/1/2015 Firefox8/8/2017616
api.PaymentRequest 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.PaymentRequest 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.abort 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.canMakePayment 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.id 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.shippingAddress Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.shippingOption Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.shippingType Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.shippingaddresschange_event Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.shippingoptionchange_event Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequest.show 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequestUpdateEvent 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequestUpdateEvent.PaymentRequestUpdateEvent 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentRequestUpdateEvent.updateWith 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.complete 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.details 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.methodName 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.payerEmail 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.payerName 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.payerPhone 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.requestId 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.shippingAddress 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.shippingOption 📋Chrome7/25/2017 Firefox8/8/201714
api.PaymentResponse.toJSON Chrome7/25/2017 Firefox8/8/201714
api.SVGRadialGradientElement.fr 📋Chrome1/10/2013 Firefox8/8/20171671
api.Selection.collapse.node_parameter_nullable Chrome11/18/2014 Firefox8/8/2017994
api.Selection.collapse.offset_parameter_optional Chrome12/11/2008 Firefox8/8/20173162
api.Selection.containsNode.partialContainment_parameter_optional Chrome12/11/2008 Firefox8/8/20173162
api.Selection.empty 📋Chrome12/11/2008 Firefox8/8/20173162
api.Selection.extend.offset_parameter_optional Chrome12/11/2008 Firefox8/8/20173162
api.Selection.setPosition 📋Chrome12/11/2008 Firefox8/8/20173162
api.WEBGL_compressed_texture_s3tc_srgb 📋Chrome7/25/2017 Firefox8/8/201714
api.WheelEvent.pinch_to_zoom_support Chrome11/12/2013 Firefox8/8/20171365
api.Window.cancelIdleCallback 📋Chrome12/1/2015 Firefox8/8/2017616
api.Window.requestIdleCallback 📋Chrome12/1/2015 Firefox8/8/2017616
api.Window.scrollX.subpixel_precision Chrome1/21/2015 Firefox8/8/2017930
api.Window.scrollY.subpixel_precision Chrome1/21/2015 Firefox8/8/2017930

2017/7

API First Browser Date Last Browser Date Days Notes
api.BeforeUnloadEvent.user_interaction Firefox1/26/2016 Chrome7/25/2017546
api.Client.type 📋Firefox6/13/2017 Chrome7/25/201742
api.Document.Document 📋Firefox4/2/2013 Chrome7/25/20171575
api.ExtendableEvent.waitUntil.async_waitUntil Firefox4/19/2017 Chrome7/25/201797
api.ImageCapture.takePhoto 📋Firefox1/13/2015 Chrome7/25/2017924
Chrome: photoSettings parameter not supported.Chrome Android: photoSettings parameter not supported.Opera: photoSettings parameter not supported.Opera Android: photoSettings parameter not supported.Samsung Internet: photoSettings parameter not supported.WebView Android: photoSettings parameter not supported.
api.InputEvent 📋Firefox7/22/2014 Chrome7/25/20171099
api.InputEvent.InputEvent 📋Firefox7/22/2014 Chrome7/25/20171099
api.InputEvent.isComposing 📋Firefox7/22/2014 Chrome7/25/20171099
api.Request.formData 📋Firefox7/2/2015 Chrome7/25/2017754
Safari: The method exists but always rejects with NotSupportedError. See bug 215671.Safari on iOS: The method exists but always rejects with NotSupportedError. See bug 215671.WebView on iOS: The method exists but always rejects with NotSupportedError. See bug 215671.
api.Response.formData 📋Firefox7/2/2015 Chrome7/25/2017754
Safari: The method exists but always rejects with NotSupportedError. See bug 215671.Safari on iOS: The method exists but always rejects with NotSupportedError. See bug 215671.WebView on iOS: The method exists but always rejects with NotSupportedError. See bug 215671.
api.Window.message_event 📋Firefox12/20/2011 Chrome7/25/20172044

2017/6

API First Browser Date Last Browser Date Days Notes
api.Clients.matchAll 📋Chrome4/14/2015 Firefox6/13/2017791
Chrome: Client objects returned in most recent focus order.Chrome Android: Client objects returned in most recent focus order.Edge: Client objects returned in most recent focus order.Firefox: Before Firefox 54, Client objects were not returned in the most recent focus order as required by the specification.Firefox for Android: Before Firefox for Android 54, Client objects were not returned in the most recent focus order as required by the specification.Quest Browser: Client objects returned in most recent focus order.Samsung Internet: Client objects returned in most recent focus order.WebView Android: Client objects returned in most recent focus order.
api.ProgressEvent.worker_support Chrome12/1/2015 Firefox6/13/2017560
Chrome: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Chrome Android: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Edge: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Quest Browser: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Opera: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Opera Android: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.Samsung Internet: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.WebView Android: Available in dedicated workers and shared workers, not available in service workers. See bug 332663431.
api.URL.toString 📋Chrome5/15/2012 Firefox6/13/20171855
api.origin 📋Chrome6/5/2017 Firefox6/13/20178
api.DeviceMotionEvent.DeviceMotionEvent 📋Firefox4/29/2014 Chrome6/5/20171133
api.DeviceOrientationEvent.DeviceOrientationEvent 📋Firefox11/20/2012 Chrome6/5/20171658
api.ImageCapture 📋Firefox1/13/2015 Chrome6/5/2017874
api.ImageCapture.ImageCapture 📋Firefox1/13/2015 Chrome6/5/2017874
api.ImageCapture.track 📋Firefox1/13/2015 Chrome6/5/2017874
api.MediaError.message 📋Firefox3/7/2017 Chrome6/5/201790
api.MediaStreamTrack.applyConstraints 📋Firefox12/15/2015 Chrome6/5/2017538
api.MediaStreamTrack.applyConstraints.deviceId_constraint 📋Firefox12/15/2015 Chrome6/5/2017538
Firefox: Before Firefox 69, Firefox only supported deviceId in constraints passed into getUserMedia().Firefox for Android: Firefox for Android only supports deviceId when used in constraints passed into getUserMedia().
api.MediaStreamTrack.applyConstraints.echoCancellation_constraint 📋Firefox11/15/2016 Chrome6/5/2017202
api.MediaStreamTrack.applyConstraints.facingMode_constraint 📋Firefox11/15/2016 Chrome6/5/2017202
api.MediaStreamTrack.applyConstraints.frameRate_constraint 📋Firefox11/15/2016 Chrome6/5/2017202
api.MediaStreamTrack.applyConstraints.height_constraint 📋Firefox11/15/2016 Chrome6/5/2017202
api.MediaStreamTrack.applyConstraints.latency_constraint 📋Firefox11/15/2016 Chrome6/5/2017202
api.MediaStreamTrack.applyConstraints.width_constraint 📋Firefox11/15/2016 Chrome6/5/2017202
api.MediaStreamTrack.getSettings 📋Firefox11/15/2016 Chrome6/5/2017202
api.RTCPeerConnection.getReceivers 📋Firefox12/1/2014 Chrome6/5/2017917
api.RTCPeerConnection.icegatheringstatechange_event 📋Firefox6/25/2013 Chrome6/5/20171441
api.RTCRtpReceiver 📋Firefox12/1/2014 Chrome6/5/2017917
api.RTCRtpReceiver.track 📋Firefox12/1/2014 Chrome6/5/2017917
api.RTCStatsReport.size 📋Firefox8/2/2016 Chrome6/5/2017307
api.XMLHttpRequest.send.body_URLSearchParams_type Firefox1/26/2016 Chrome6/5/2017496
Safari: Doesn't send the correct Content-Type header by default. See bug 227477.Safari on iOS: Doesn't send the correct Content-Type header by default. See bug 227477.WebView on iOS: Doesn't send the correct Content-Type header by default. See bug 227477.

2017/4

API First Browser Date Last Browser Date Days Notes
api.AnalyserNode.AnalyserNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.AudioBuffer.AudioBuffer 📋Chrome12/1/2016 Firefox4/19/2017139
Chrome: The context parameter was supported up until version 57, but has now been removed.Chrome Android: The context parameter was supported up until version 57, but has now been removed.Quest Browser: The context parameter was supported up until version 5.0, but has now been removed.Opera: The context parameter was supported up until version 44, but has now been removed.Opera Android: The context parameter was supported up until version 44, but has now been removed.Samsung Internet: The context parameter was supported up until Samsung Internet 7.0, but has now been removed.WebView Android: The context parameter was supported up until version 57, but has now been removed.
api.AudioBufferSourceNode.AudioBufferSourceNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.AudioParam.maxValue 📋Chrome7/20/2016 Firefox4/19/2017273
api.AudioParam.minValue 📋Chrome7/20/2016 Firefox4/19/2017273
api.AudioScheduledSourceNode 📋Chrome3/9/2017 Firefox4/19/201741
Chrome: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Chrome Android: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Edge: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Firefox: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Firefox for Android: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Opera: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Opera Android: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Safari: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Safari on iOS: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.Samsung Internet: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.WebView Android: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.WebView on iOS: The AudioScheduledSourceNode interface itself is not present, but some of its members are available on the AudioBufferSourceNode, ConstantSourceNode and OscillatorNode interfaces.
api.BaseAudioContext 📋Chrome1/25/2017 Firefox4/19/201784
Chrome: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Chrome Android: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Edge: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Firefox: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Firefox for Android: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Opera: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Opera Android: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Safari: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Safari on iOS: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.Samsung Internet: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.WebView Android: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.WebView on iOS: The BaseAudioContext interface itself is not present, but many of the methods are available on the AudioContext and OfflineAudioContext interfaces.
api.BiquadFilterNode.BiquadFilterNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.CSSNamespaceRule 📋Chrome12/1/2015 Firefox4/19/2017505
api.ChannelMergerNode.ChannelMergerNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.ChannelSplitterNode.ChannelSplitterNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.ClipboardEvent.ClipboardEvent 📋Firefox6/25/2013 Chrome4/19/20171394
api.CompositionEvent.CompositionEvent 📋Chrome3/26/2013 Firefox4/19/20171485
api.ConvolverNode.ConvolverNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.DelayNode.DelayNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.DynamicsCompressorNode.DynamicsCompressorNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.Element.auxclick_event 📋Chrome12/1/2016 Firefox4/19/2017139
Firefox: Starting in Firefox 68, the auxclick event is used to trigger the new tab on middle-click action; previously, this had been done with the click event. Apps can prevent middle-click from opening new tabs (or middle-click to paste, if that feature is enabled) by intercepting auxclick on links, and auxclick event handlers can now open popups without triggering the popup blocker.
api.Event.cancelBubble 📋Chrome12/11/2008 Firefox4/19/20173051
Chrome: Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Chrome Android: Starting with Chrome Android 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Firefox: Only supported for UIEvent, not all Event objects.Firefox for Android: Only supported for UIEvent, not all Event objects.Node.js: This is not used in Node.js and is provided purely for completeness.Quest Browser: Starting with Quest Browser 5.0 and Opera 45, setting this property to false does nothing, as per spec discussion.Opera: Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Opera Android: Starting with Chrome 58 and Opera 45, setting this property to false does nothing, as per spec discussion.Samsung Internet: Starting with Samsung Internet 7.0 and Opera 45, setting this property to false does nothing, as per spec discussion.WebView Android: Starting with WebView Android 58 and Opera 45, setting this property to false does nothing, as per spec discussion.
api.GainNode.GainNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.HTMLLinkElement.referrerPolicy 📋Firefox11/15/2016 Chrome4/19/2017155
api.HTMLMediaElement.play.returns_promise Chrome4/13/2016 Firefox4/19/2017371
api.IDBCursor.continuePrimaryKey 📋Firefox1/31/2012 Chrome4/19/20171905
api.IDBCursor.key.binary_keys Firefox1/24/2017 Chrome4/19/201785
api.IIRFilterNode.IIRFilterNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.MediaElementAudioSourceNode.MediaElementAudioSourceNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.MediaStreamAudioDestinationNode.MediaStreamAudioDestinationNode 📋Chrome3/9/2017 Firefox4/19/201741
api.MediaStreamAudioSourceNode.MediaStreamAudioSourceNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.MouseEvent.x 📋Chrome12/11/2008 Firefox4/19/20173051
api.MouseEvent.y 📋Chrome12/11/2008 Firefox4/19/20173051
api.Node.getRootNode 📋Chrome10/12/2016 Firefox4/19/2017189
api.OfflineAudioCompletionEvent.OfflineAudioCompletionEvent 📋Chrome3/9/2017 Firefox4/19/201741
api.OscillatorNode.OscillatorNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.PannerNode.PannerNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.PeriodicWave.PeriodicWave 📋Chrome12/1/2016 Firefox4/19/2017139
api.RTCPeerConnection.getStats.returns_promise Firefox3/31/2015 Chrome4/19/2017750
api.RTCStatsReport 📋Firefox2/4/2014 Chrome4/19/20171170
api.RTCStatsReport.@@iterator Firefox8/2/2016 Chrome4/19/2017260
api.RTCStatsReport.entries 📋Firefox8/2/2016 Chrome4/19/2017260
api.RTCStatsReport.forEach 📋Firefox2/4/2014 Chrome4/19/20171170
api.RTCStatsReport.get 📋Firefox2/4/2014 Chrome4/19/20171170
api.RTCStatsReport.has 📋Firefox2/4/2014 Chrome4/19/20171170
api.RTCStatsReport.keys 📋Firefox8/2/2016 Chrome4/19/2017260
api.RTCStatsReport.type_candidate-pair 📋Firefox4/29/2014 Chrome4/19/20171086
api.RTCStatsReport.type_candidate-pair.localCandidateId 📋Firefox4/29/2014 Chrome4/19/20171086
api.RTCStatsReport.type_candidate-pair.priority Firefox11/3/2015 Chrome4/19/2017533
api.RTCStatsReport.type_candidate-pair.remoteCandidateId 📋Firefox4/29/2014 Chrome4/19/20171086
api.RTCStatsReport.type_candidate-pair.state 📋Firefox4/29/2014 Chrome4/19/20171086
api.RTCStatsReport.values Firefox8/2/2016 Chrome4/19/2017260
api.SVGGeometryElement 📋Chrome1/25/2017 Firefox4/19/201784
Chrome: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Chrome Android: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Edge: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Firefox: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Firefox for Android: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Internet Explorer: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Opera: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Opera Android: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Safari: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Safari on iOS: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.Samsung Internet: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.WebView Android: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.WebView on iOS: The SVGGeometryElement interface itself is not present, but some of its members are available on the SVGPathElement interface.
api.Selection.removeRange 📋Firefox11/9/2004 Chrome4/19/20174544
api.Selection.setBaseAndExtent 📋Chrome12/11/2008 Firefox4/19/20173051
api.StereoPannerNode.StereoPannerNode 📋Chrome12/1/2016 Firefox4/19/2017139
api.URLSearchParams.URLSearchParams.sequence Chrome4/19/2017 Firefox4/19/2017
api.WEBGL_compressed_texture_astc 📋Chrome12/1/2015 Firefox4/19/2017505
api.WEBGL_compressed_texture_astc.getSupportedProfiles 📋Chrome12/1/2015 Firefox4/19/2017505
api.WEBGL_debug_renderer_info 📋Chrome2/20/2014 Firefox4/19/20171154
Firefox: Deprecated, and may be removed in a future release (see bug 1722782).Firefox for Android: Deprecated, and may be removed in a future release (see bug 1722782).
api.WaveShaperNode.WaveShaperNode 📋Chrome12/1/2016 Firefox4/19/2017139

2017/3

API First Browser Date Last Browser Date Days Notes
api.FontFaceSetLoadEvent.FontFaceSetLoadEvent 📋Firefox9/22/2015 Chrome3/9/2017534
api.HTMLFieldSetElement.elements.type_HTMLCollection Firefox3/22/2011 Chrome3/9/20172179
api.MediaDevices.devicechange_event 📋Firefox3/7/2017 Chrome3/9/20172
api.RTCDataChannel.bufferedamountlow_event 📋Firefox1/26/2016 Chrome3/9/2017408
Chrome: The default for rtcpMuxPolicy is require.Chrome Android: The default for rtcpMuxPolicy is require.Edge: The default for rtcpMuxPolicy is require.Quest Browser: The default for rtcpMuxPolicy is require.Opera: The default for rtcpMuxPolicy is require.Opera Android: The default for rtcpMuxPolicy is require.Samsung Internet: The default for rtcpMuxPolicy is require.WebView Android: The default for rtcpMuxPolicy is require.
api.Response.redirected 📋Firefox9/20/2016 Chrome3/9/2017170
api.BaseAudioContext.createConstantSource 📋Chrome1/25/2017 Firefox3/7/201741
api.ConstantSourceNode 📋Chrome1/25/2017 Firefox3/7/201741
api.ConstantSourceNode.ConstantSourceNode 📋Chrome1/25/2017 Firefox3/7/201741
api.ConstantSourceNode.offset 📋Chrome1/25/2017 Firefox3/7/201741
api.Document.rootElement 📋Chrome4/8/2014 Firefox3/7/20171064
api.Document.selectionchange_event 📋Chrome4/27/2011 Firefox3/7/20172141
api.Element.focusin_event 📋Chrome12/11/2008 Firefox3/7/20173008
Chrome: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.Chrome Android: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.Edge: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.Firefox: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.Firefox for Android: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.Quest Browser: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.Samsung Internet: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.WebView Android: The onfocusin event handler property is not supported. To listen to this event, use element.addEventListener('focusin', function() {});.
api.Element.focusout_event 📋Chrome12/11/2008 Firefox3/7/20173008
Chrome: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.Chrome Android: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.Edge: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.Firefox: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.Firefox for Android: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.Quest Browser: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.Samsung Internet: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.WebView Android: The onfocusout event handler property is not supported. To listen to this event, use element.addEventListener('focusout', function() {});.
api.Element.touchcancel_event 📋Chrome9/25/2012 Firefox3/7/20171624
api.Element.touchend_event 📋Chrome9/25/2012 Firefox3/7/20171624
api.Element.touchmove_event 📋Chrome9/25/2012 Firefox3/7/20171624
api.Element.touchstart_event 📋Chrome9/25/2012 Firefox3/7/20171624
api.Event.composed 📋Chrome8/31/2016 Firefox3/7/2017188
Firefox: Before Firefox 95, this property was incorrectly set to false on <select> and <input type='checkbox'> elements.Firefox for Android: Before Firefox for Android 95, this property was incorrectly set to false on <select> and <input type='checkbox'> elements.Node.js: This is not used in Node.js and is provided purely for completeness.
api.FileSystemEntry.getParent 📋Chrome12/2/2010 Firefox3/7/20172287
api.MediaKeySession.keystatuseschange_event 📋Chrome12/1/2016 Firefox3/7/201796
Chrome: The onkeystatuseschange event handler property is not supported.Chrome Android: The onkeystatuseschange event handler property is not supported.Opera: The onkeystatuseschange event handler property is not supported.Opera Android: The onkeystatuseschange event handler property is not supported.Samsung Internet: The onkeystatuseschange event handler property is not supported.WebView Android: The onkeystatuseschange event handler property is not supported.
api.MediaKeySession.message_event 📋Chrome12/1/2016 Firefox3/7/201796
Chrome: The onmessage event handler property is not supported.Chrome Android: The onmessage event handler property is not supported.Opera: The onmessage event handler property is not supported.Opera Android: The onmessage event handler property is not supported.Samsung Internet: The onmessage event handler property is not supported.WebView Android: The onmessage event handler property is not supported.
api.MediaStream.active 📋Chrome4/14/2015 Firefox3/7/2017693
api.Node.selectstart_event 📋Chrome12/11/2008 Firefox3/7/20173008
api.RTCDTMFSender 📋Chrome5/21/2013 Firefox3/7/20171386
api.RTCDTMFSender.insertDTMF 📋Chrome5/21/2013 Firefox3/7/20171386
api.RTCDTMFSender.toneBuffer 📋Chrome5/21/2013 Firefox3/7/20171386
api.RTCDTMFSender.tonechange_event 📋Chrome5/21/2013 Firefox3/7/20171386
api.RTCDTMFToneChangeEvent 📋Chrome5/21/2013 Firefox3/7/20171386
api.RTCDTMFToneChangeEvent.RTCDTMFToneChangeEvent 📋Chrome5/21/2013 Firefox3/7/20171386
api.RTCDTMFToneChangeEvent.tone 📋Chrome5/21/2013 Firefox3/7/20171386
api.Touch 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.Touch 📋Chrome1/20/2016 Firefox3/7/2017412
Firefox: This interface is only exposed if a touch input device is detected.
api.Touch.clientX 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.clientY 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.force 📋Chrome10/7/2014 Firefox3/7/2017882
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.identifier 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.pageX 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.pageY 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.radiusX 📋Chrome10/7/2014 Firefox3/7/2017882
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.radiusY 📋Chrome10/7/2014 Firefox3/7/2017882
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.rotationAngle 📋Chrome5/19/2015 Firefox3/7/2017658
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.screenX 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.screenY 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.Touch.target 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent.altKey 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent.changedTouches 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent.ctrlKey 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent.metaKey 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent.shiftKey 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent.targetTouches 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchEvent.touches 📋Chrome9/25/2012 Firefox3/7/20171624
Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchList 📋Chrome3/28/2012 Firefox3/7/20171805
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchList.item 📋Chrome3/28/2012 Firefox3/7/20171805
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.TouchList.length 📋Chrome3/28/2012 Firefox3/7/20171805
Firefox: This interface is only exposed if a touch input device is detected.Firefox: Removed in bug 888304 due to web compatibility issues.
api.fetch.init_referrerPolicy_parameter Chrome7/20/2016 Firefox3/7/2017230
api.isSecureContext.worker_support Chrome12/1/2016 Firefox3/7/201796

2017/1

API First Browser Date Last Browser Date Days Notes
api.CSSConditionRule 📋Firefox4/2/2013 Chrome1/25/20171394
api.CSSConditionRule.conditionText 📋Firefox4/2/2013 Chrome1/25/20171394
api.Document.createElement.options_parameter Firefox11/15/2016 Chrome1/25/201771
Chrome: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Chrome Android: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Edge: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Firefox: Firefox accepts a string instead of an object here, but only from version 51 onwards. In version 50, options must be an object.Firefox for Android: Firefox for Android accepts a string instead of an object here, but only from version 51 onwards. In version 50, options must be an object.Quest Browser: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Opera: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Opera Android: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Samsung Internet: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.WebView Android: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.
api.Document.createElementNS.options_parameter Firefox11/15/2016 Chrome1/25/201771
Chrome: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Chrome Android: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Edge: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Firefox: Firefox accepts a string instead of an object here, but only from version 51 onwards. In version 50, options must be an object.Firefox for Android: Firefox for Android accepts a string instead of an object here, but only from version 51 onwards. In version 50, options must be an object.Quest Browser: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Opera: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Opera Android: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.Samsung Internet: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.WebView Android: For backwards compatibility, the options parameter can be an object or a string with the custom element tag name, although the string version is deprecated.
api.EXT_color_buffer_float 📋Firefox1/24/2017 Chrome1/25/20171
api.HTMLCanvasElement.getContext.webgl2_context Firefox1/24/2017 Chrome1/25/20171
api.HTMLCanvasElement.getContext.webgl2_context.options_alpha_parameter 📋Firefox6/10/2014 Chrome1/25/2017960
api.HTMLCanvasElement.getContext.webgl2_context.options_failIfMajorPerformanceCaveat_parameter 📋Firefox9/22/2015 Chrome1/25/2017491
api.KeyboardEvent.isComposing 📋Firefox7/22/2014 Chrome1/25/2017918
api.Performance.toJSON 📋Firefox10/29/2013 Chrome1/25/20171184
api.PerformanceNavigation.toJSON 📋Firefox10/29/2013 Chrome1/25/20171184
Firefox: Before Firefox 70, this property could return incorrect values. See bug 1459711.Firefox for Android: Before Firefox for Android 79, this property could return incorrect values. See bug 1459711.
api.RTCDataChannelEvent.RTCDataChannelEvent 📋Firefox6/25/2013 Chrome1/25/20171310
api.RTCPeerConnection 📋Firefox1/26/2016 Chrome1/25/2017365
api.RTCPeerConnection.RTCPeerConnection 📋Firefox1/26/2016 Chrome1/25/2017365
Chrome: Before Chrome 63, the default value for the configuration.rtcpMuxPolicy parameter is "negotiate" instead of "required".Chrome Android: Before Chrome Android 63, the default value for the configuration.rtcpMuxPolicy parameter is "negotiate" instead of "required".Quest Browser: Before Quest Browser 5.0, the default value for the configuration.rtcpMuxPolicy parameter is "negotiate" instead of "required".Opera: Before Opera 50, the default value for the configuration.rtcpMuxPolicy parameter is "negotiate" instead of "required".Opera Android: Before Opera Android 46, the default value for the configuration.rtcpMuxPolicy parameter is "negotiate" instead of "required".Samsung Internet: Before Samsung Internet 8.0, the default value for the configuration.rtcpMuxPolicy parameter is "negotiate" instead of "required".WebView Android: Before WebView Android 63, the default value for the configuration.rtcpMuxPolicy parameter is "negotiate" instead of "required".
api.RTCPeerConnection.RTCPeerConnection.configuration_iceTransportPolicy_parameter 📋Firefox11/3/2015 Chrome1/25/2017449
api.RTCPeerConnectionIceEvent 📋Firefox9/17/2013 Chrome1/25/20171226
api.RTCPeerConnectionIceEvent.RTCPeerConnectionIceEvent 📋Firefox9/17/2013 Chrome1/25/20171226
api.RTCTrackEvent 📋Firefox6/25/2013 Chrome1/25/20171310
api.RTCTrackEvent.receiver 📋Firefox12/1/2014 Chrome1/25/2017786
api.RTCTrackEvent.streams 📋Firefox6/25/2013 Chrome1/25/20171310
api.RTCTrackEvent.track 📋Firefox6/25/2013 Chrome1/25/20171310
api.WebGL2RenderingContext 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.activeTexture 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.attachShader 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.beginQuery 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.beginTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindAttribLocation 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindBuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindBufferBase 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindBufferRange 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindFramebuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindRenderbuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindSampler 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindTexture 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bindVertexArray 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.blendColor 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.blendEquation 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.blendEquationSeparate 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.blendFunc 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.blendFuncSeparate 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.blitFramebuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bufferData 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.bufferSubData 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.canvas 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.checkFramebufferStatus 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clear 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clearBufferfi 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clearBufferfv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clearBufferiv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clearBufferuiv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clearColor 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clearDepth 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clearStencil 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.clientWaitSync 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.colorMask 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.compileShader 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.compressedTexImage2D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.compressedTexImage3D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.compressedTexSubImage2D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.compressedTexSubImage3D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.copyBufferSubData 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.copyTexImage2D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.copyTexSubImage2D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.copyTexSubImage3D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createBuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createFramebuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createProgram 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createQuery 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createRenderbuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createSampler 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createShader 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createTexture 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.createVertexArray 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.cullFace 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteBuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteFramebuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteProgram 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteQuery 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteRenderbuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteSampler 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteShader 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteSync 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteTexture 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.deleteVertexArray 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.depthFunc 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.depthMask 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.depthRange 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.detachShader 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.disable 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.disableVertexAttribArray 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawArrays 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawArraysInstanced 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawBuffers 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawElements 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawElementsInstanced 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawRangeElements 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawingBufferHeight 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.drawingBufferWidth 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.enable 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.enableVertexAttribArray 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.endQuery 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.endTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.fenceSync 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.finish 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.flush 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.framebufferRenderbuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.framebufferTexture2D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.framebufferTextureLayer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.frontFace 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.generateMipmap 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getActiveAttrib 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getActiveUniform 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getActiveUniformBlockName 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getActiveUniformBlockParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getActiveUniforms 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getAttachedShaders 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getAttribLocation 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getBufferParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getBufferSubData 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getContextAttributes 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getError 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getExtension 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getFragDataLocation 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getFramebufferAttachmentParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getIndexedParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getInternalformatParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getProgramInfoLog 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getProgramParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getQuery 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getQueryParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getRenderbufferParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getSamplerParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getShaderInfoLog 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getShaderParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getShaderPrecisionFormat 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getShaderSource 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getSupportedExtensions 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getSyncParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getTexParameter 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getTransformFeedbackVarying 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getUniform 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getUniformBlockIndex 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getUniformIndices 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getUniformLocation 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getVertexAttrib 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.getVertexAttribOffset 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.hint 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.invalidateFramebuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.invalidateSubFramebuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isBuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isContextLost 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isEnabled 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isFramebuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isProgram 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isQuery 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isRenderbuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isSampler 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isShader 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isSync 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isTexture 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.isVertexArray 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.lineWidth 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.linkProgram 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.pauseTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.pixelStorei 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.polygonOffset 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.readBuffer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.readPixels 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.renderbufferStorage 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.renderbufferStorageMultisample 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.resumeTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.sampleCoverage 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.samplerParameterf 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.samplerParameteri 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.scissor 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.shaderSource 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.stencilFunc 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.stencilFuncSeparate 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.stencilMask 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.stencilMaskSeparate 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.stencilOp 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.stencilOpSeparate 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.texImage2D 📋Firefox1/24/2017 Chrome1/25/20171
Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGL2RenderingContext.texImage3D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.texParameterf 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.texParameteri 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.texStorage2D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.texStorage3D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.texSubImage2D 📋Firefox1/24/2017 Chrome1/25/20171
Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGL2RenderingContext.texSubImage3D 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.transformFeedbackVaryings 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform1f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform1fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform1i 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform1iv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform1ui 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform1uiv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform2f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform2fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform2i 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform2iv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform2ui 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform2uiv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform3f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform3fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform3i 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform3iv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform3ui 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform3uiv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform4f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform4fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform4i 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform4iv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform4ui 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniform4uiv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformBlockBinding 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix2fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix2x3fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix2x4fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix3fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix3x2fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix3x4fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix4fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix4x2fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.uniformMatrix4x3fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.useProgram 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.validateProgram 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib1f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib1fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib2f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib2fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib3f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib3fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib4f 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttrib4fv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttribDivisor 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttribI4i 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttribI4iv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttribI4ui 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttribI4uiv 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttribIPointer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.vertexAttribPointer 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.viewport 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGL2RenderingContext.waitSync 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGLQuery 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGLSampler 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGLSync 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGLTransformFeedback 📋Firefox1/24/2017 Chrome1/25/20171
api.WebGLVertexArrayObject 📋Firefox1/24/2017 Chrome1/25/20171
api.CanvasRenderingContext2D.imageSmoothingEnabled 📋Chrome10/1/2013 Firefox1/24/20171211
api.DOMTokenList.trim_whitespace Chrome1/20/2016 Firefox1/24/2017370
api.Element.transitionend_event 📋Chrome3/26/2013 Firefox1/24/20171400
Edge: The ontransitionend event handler property is not supported. To listen to this event, use element.addEventListener('transitionend', function() {});.Internet Explorer: The ontransitionend event handler property is not supported. To listen to this event, use element.addEventListener('transitionend', function() {});.
api.HTMLInputElement.minLength 📋Chrome1/21/2015 Firefox1/24/2017734
api.HTMLTextAreaElement.minLength 📋Chrome1/21/2015 Firefox1/24/2017734
api.IDBObjectStore.getKey 📋Chrome1/20/2016 Firefox1/24/2017370
api.Permissions.revoke 📋Chrome10/13/2015 Firefox1/24/2017469
api.Request.integrity 📋Chrome10/13/2015 Firefox1/24/2017469
api.SVGElement.blur 📋Chrome12/11/2008 Firefox1/24/20172966
api.SVGElement.dataset 📋Chrome12/1/2016 Firefox1/24/201754
api.SVGElement.focus 📋Chrome12/11/2008 Firefox1/24/20172966
api.SVGElement.tabIndex 📋Chrome7/16/2014 Firefox1/24/2017923
api.ValidityState.tooShort 📋Chrome1/21/2015 Firefox1/24/2017734

2016/12

API First Browser Date Last Browser Date Days Notes
api.EventTarget.addEventListener.options_parameter.options_once_parameter 📋Firefox11/15/2016 Chrome12/1/201616
api.IDBIndex.name.renaming_through_name_setter Firefox9/20/2016 Chrome12/1/201672
api.IDBObjectStore.name.renaming_through_name_setter Firefox9/20/2016 Chrome12/1/201672
api.MediaStream 📋Firefox8/28/2012 Chrome12/1/20161556
api.MediaStream.MediaStream 📋Firefox1/26/2016 Chrome12/1/2016310
api.MediaStreamTrackEvent.MediaStreamTrackEvent 📋Firefox11/15/2016 Chrome12/1/201616

2016/11

API First Browser Date Last Browser Date Days Notes
api.BaseAudioContext.createIIRFilter 📋Chrome3/2/2016 Firefox11/15/2016258
api.DOMTokenList.entries Chrome4/14/2015 Firefox11/15/2016581
api.DOMTokenList.forEach Chrome4/14/2015 Firefox11/15/2016581
api.DOMTokenList.keys Chrome4/14/2015 Firefox11/15/2016581
api.DOMTokenList.values Chrome4/14/2015 Firefox11/15/2016581
api.DataTransfer.items 📋Chrome9/15/2009 Firefox11/15/20162618
api.DataTransferItem 📋Chrome4/27/2011 Firefox11/15/20162029
api.DataTransferItem.getAsFile 📋Chrome4/27/2011 Firefox11/15/20162029
api.DataTransferItem.getAsString 📋Chrome4/27/2011 Firefox11/15/20162029
api.DataTransferItem.kind 📋Chrome4/27/2011 Firefox11/15/20162029
api.DataTransferItem.type 📋Chrome4/27/2011 Firefox11/15/20162029
api.DataTransferItem.webkitGetAsEntry 📋Chrome8/2/2011 Firefox11/15/20161932
api.DataTransferItemList 📋Chrome8/2/2011 Firefox11/15/20161932
api.DataTransferItemList.add 📋Chrome8/2/2011 Firefox11/15/20161932
api.DataTransferItemList.clear 📋Chrome8/2/2011 Firefox11/15/20161932
api.DataTransferItemList.length 📋Chrome8/2/2011 Firefox11/15/20161932
api.DataTransferItemList.remove 📋Chrome11/12/2013 Firefox11/15/20161099
api.Document.exitPointerLock 📋Chrome8/26/2014 Firefox11/15/2016812
api.Document.pointerLockElement 📋Chrome8/26/2014 Firefox11/15/2016812
api.Document.pointerlockchange_event 📋Chrome7/16/2014 Firefox11/15/2016853
api.Document.pointerlockerror_event 📋Chrome7/16/2014 Firefox11/15/2016853
api.Element.requestPointerLock 📋Chrome8/26/2014 Firefox11/15/2016812
Chrome: From version 92, returns a promise instead of undefined. The behavior reflects a specification change.Edge: From version 92, returns a promise instead of undefined. The behavior reflects a specification change.Opera: From version 78, returns a promise instead of undefined. The behavior reflects a specification change.Safari: From version 18.4, returns a promise instead of undefined. The behavior reflects a specification change.Samsung Internet: From version 16, returns a promise instead of undefined. The behavior reflects a specification change.
api.File.webkitRelativePath 📋Chrome8/2/2011 Firefox11/15/20161932
Firefox for Android: Always an empty string (bug 1973726).
api.FileSystem 📋Chrome10/19/2010 Firefox11/15/20162219
Edge: Before Edge 79, this API was only supported in drag-and-drop scenarios using the DataTransferItem.webkitGetAsEntry() method. It was not available for use in file or folder picker panels (such as when you use an <input> element with the HTMLInputElement.webkitdirectory attribute.
api.FileSystem.name 📋Chrome10/19/2010 Firefox11/15/20162219
api.FileSystem.root 📋Chrome10/19/2010 Firefox11/15/20162219
api.FileSystemDirectoryEntry 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemDirectoryEntry.createReader 📋Chrome8/2/2011 Firefox11/15/20161932
api.FileSystemDirectoryEntry.getDirectory 📋Chrome12/2/2010 Firefox11/15/20162175
Firefox: In Firefox, the errorCallback's input parameter is a DOMException rather than a FileError object.Firefox for Android: In Firefox for Android, the errorCallback's input parameter is a DOMException rather than a FileError object.
api.FileSystemDirectoryEntry.getFile 📋Chrome12/2/2010 Firefox11/15/20162175
Firefox: In Firefox, the errorCallback's input parameter is a DOMException rather than a FileError object.Firefox for Android: In Firefox for Android, the errorCallback's input parameter is a DOMException rather than a FileError object.
api.FileSystemDirectoryReader 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemDirectoryReader.readEntries 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemEntry 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemEntry.filesystem 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemEntry.fullPath 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemEntry.isDirectory 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemEntry.isFile 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemEntry.name 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemFileEntry 📋Chrome12/2/2010 Firefox11/15/20162175
api.FileSystemFileEntry.file 📋Chrome12/2/2010 Firefox11/15/20162175
api.HTMLAnchorElement.referrerPolicy 📋Chrome7/20/2016 Firefox11/15/2016118
api.HTMLAreaElement.referrerPolicy 📋Chrome7/20/2016 Firefox11/15/2016118
api.HTMLIFrameElement.referrerPolicy 📋Chrome7/20/2016 Firefox11/15/2016118
api.HTMLImageElement.referrerPolicy 📋Chrome7/20/2016 Firefox11/15/2016118
api.HTMLInputElement.webkitEntries 📋Chrome9/25/2012 Firefox11/15/20161512
api.HTMLInputElement.webkitdirectory 📋Chrome10/19/2010 Firefox11/15/20162219
Chrome Android: In Chrome for Android 131, if a user selects a directory, the browser crashes (see bug 376834374).Chrome Android: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.Firefox for Android: File entries returned for a selected directory have an empty string for webkitRelativePath (bug 1973726).Quest Browser: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.Opera Android: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.Safari on iOS: The property can be set, but has no effect (see bug 271705).Samsung Internet: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.WebView Android: In Chrome for Android 131, if a user selects a directory, the browser crashes (see bug 376834374).WebView Android: The property reflects the attribute, but users cannot choose a directory, only individual files (see bug 40248532.WebView on iOS: The property can be set, but has no effect (see bug 271705).
api.IDBDatabase.close_event 📋Chrome10/1/2013 Firefox11/15/20161141
api.IIRFilterNode 📋Chrome3/2/2016 Firefox11/15/2016258
api.IIRFilterNode.getFrequencyResponse 📋Chrome3/2/2016 Firefox11/15/2016258
api.MediaStream.addtrack_event 📋Chrome3/26/2013 Firefox11/15/20161330
api.MediaStreamTrack.ended_event 📋Chrome3/26/2013 Firefox11/15/20161330
api.MediaStreamTrack.getConstraints 📋Chrome8/31/2016 Firefox11/15/201676
api.MediaStreamTrack.readyState 📋Chrome3/26/2013 Firefox11/15/20161330
api.MediaStreamTrackEvent 📋Chrome3/26/2013 Firefox11/15/20161330
api.MediaStreamTrackEvent.track 📋Chrome3/26/2013 Firefox11/15/20161330
api.NodeList.entries Chrome5/25/2016 Firefox11/15/2016174
api.NodeList.forEach 📋Chrome5/25/2016 Firefox11/15/2016174
api.NodeList.keys Chrome5/25/2016 Firefox11/15/2016174
api.NodeList.values Chrome5/25/2016 Firefox11/15/2016174
api.PannerNode.orientationX 📋Chrome7/20/2016 Firefox11/15/2016118
api.PannerNode.orientationY 📋Chrome7/20/2016 Firefox11/15/2016118
api.PannerNode.orientationZ 📋Chrome7/20/2016 Firefox11/15/2016118
api.PannerNode.positionX 📋Chrome7/20/2016 Firefox11/15/2016118
api.PannerNode.positionY 📋Chrome7/20/2016 Firefox11/15/2016118
api.PannerNode.positionZ 📋Chrome7/20/2016 Firefox11/15/2016118
api.WindowClient.navigate 📋Chrome3/2/2016 Firefox11/15/2016258
Safari: This method exists, but always throws NotSupportedError.Safari on iOS: This method exists, but always throws NotSupportedError.

2016/10

API First Browser Date Last Browser Date Days Notes
api.BroadcastChannel 📋Firefox5/12/2015 Chrome10/12/2016519
Node.js: Available as a part of the worker_threads module.
api.BroadcastChannel.BroadcastChannel 📋Firefox5/12/2015 Chrome10/12/2016519
api.BroadcastChannel.close 📋Firefox5/12/2015 Chrome10/12/2016519
api.BroadcastChannel.message_event 📋Firefox5/12/2015 Chrome10/12/2016519
api.BroadcastChannel.name 📋Firefox5/12/2015 Chrome10/12/2016519
api.BroadcastChannel.postMessage 📋Firefox5/12/2015 Chrome10/12/2016519
api.CacheStorage.match 📋Firefox9/22/2015 Chrome10/12/2016386
Chrome: The options parameter only supports ignoreSearch, and cacheName.Chrome Android: The options parameter only supports ignoreSearch, and cacheName.Opera: The options parameter only supports ignoreSearch, and cacheName.Opera Android: The options parameter only supports ignoreSearch, and cacheName.Samsung Internet: The options parameter only supports ignoreSearch, and cacheName.WebView Android: The options parameter only supports ignoreSearch, and cacheName.
api.CharacterData.after 📋Firefox9/20/2016 Chrome10/12/201622
api.CharacterData.before 📋Firefox9/20/2016 Chrome10/12/201622
api.CharacterData.replaceWith 📋Firefox9/20/2016 Chrome10/12/201622
api.Document.append 📋Firefox9/20/2016 Chrome10/12/201622
api.Document.prepend 📋Firefox9/20/2016 Chrome10/12/201622
api.DocumentFragment.append 📋Firefox9/20/2016 Chrome10/12/201622
api.DocumentFragment.prepend 📋Firefox9/20/2016 Chrome10/12/201622
api.DocumentType.after 📋Firefox9/20/2016 Chrome10/12/201622
api.DocumentType.before 📋Firefox9/20/2016 Chrome10/12/201622
api.DocumentType.replaceWith 📋Firefox9/20/2016 Chrome10/12/201622
api.Element.after 📋Firefox9/20/2016 Chrome10/12/201622
api.Element.append 📋Firefox9/20/2016 Chrome10/12/201622
api.Element.before 📋Firefox9/20/2016 Chrome10/12/201622
api.Element.prepend 📋Firefox9/20/2016 Chrome10/12/201622
api.Element.replaceWith 📋Firefox9/20/2016 Chrome10/12/201622
api.HTMLAreaElement.download 📋Firefox4/2/2013 Chrome10/12/20161289
api.HTMLAreaElement.rel 📋Firefox6/10/2014 Chrome10/12/2016855
api.PerformanceResourceTiming.decodedBodySize 📋Firefox3/8/2016 Chrome10/12/2016218
api.PerformanceResourceTiming.encodedBodySize 📋Firefox3/8/2016 Chrome10/12/2016218
api.PerformanceResourceTiming.transferSize 📋Firefox3/8/2016 Chrome10/12/2016218
api.PushSubscription.options 📋Firefox1/26/2016 Chrome10/12/2016260
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionOptions 📋Firefox1/26/2016 Chrome10/12/2016260
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscriptionOptions.applicationServerKey 📋Firefox1/26/2016 Chrome10/12/2016260
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.

2016/9

API First Browser Date Last Browser Date Days Notes
api.BaseAudioContext.createPeriodicWave.constraints_disableNormalization_parameter Chrome10/13/2015 Firefox9/20/2016343
api.CanvasRenderingContext2D.filter 📋Chrome7/20/2016 Firefox9/20/201662
api.DOMTokenList.supports 📋Chrome3/2/2016 Firefox9/20/2016202
api.EventTarget.addEventListener.options_parameter Chrome3/2/2016 Firefox9/20/2016202
api.EventTarget.addEventListener.options_parameter.options_capture_parameter 📋Chrome3/2/2016 Firefox9/20/2016202
api.EventTarget.addEventListener.options_parameter.options_passive_parameter 📋Chrome5/25/2016 Firefox9/20/2016118
api.EventTarget.removeEventListener.options_parameter Chrome3/2/2016 Firefox9/20/2016202
api.HTMLButtonElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.HTMLCanvasElement.webglcontextcreationerror_event 📋Chrome2/3/2011 Firefox9/20/20162056
api.HTMLDetailsElement 📋Chrome3/8/2011 Firefox9/20/20162023
api.HTMLDetailsElement.open 📋Chrome3/8/2011 Firefox9/20/20162023
api.HTMLElement.toggle_event 📋Chrome7/16/2014 Firefox9/20/2016797
api.HTMLElement.toggle_event.details_elements 📋Chrome7/16/2014 Firefox9/20/2016797
api.HTMLFieldSetElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.HTMLFormElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.HTMLInputElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.HTMLObjectElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.HTMLOutputElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.HTMLSelectElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.HTMLTextAreaElement.reportValidity 📋Chrome1/21/2015 Firefox9/20/2016608
api.MediaStream.getTrackById 📋Chrome3/26/2013 Firefox9/20/20161274
api.Node.isConnected 📋Chrome5/25/2016 Firefox9/20/2016118
api.OfflineAudioContext.length 📋Chrome5/25/2016 Firefox9/20/2016118
api.SpeechSynthesis 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.cancel 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.getVoices 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.pause 📋Chrome2/20/2014 Firefox9/20/2016943
Chrome Android: In Android, pause() ends the current utterance. pause() behaves the same as cancel().Firefox for Android: In Android, pause() ends the current utterance. pause() behaves the same as cancel().Quest Browser: In Android, pause() ends the current utterance. pause() behaves the same as cancel().Samsung Internet: In Android, pause() ends the current utterance. pause() behaves the same as cancel().
api.SpeechSynthesis.paused 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.pending 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.resume 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.speak 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.speaking 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesis.voiceschanged_event 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisErrorEvent 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisErrorEvent.error 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisEvent 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisEvent.charIndex 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisEvent.elapsedTime 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisEvent.name 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisEvent.utterance 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.SpeechSynthesisUtterance 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.boundary_event 📋Chrome2/20/2014 Firefox9/20/2016943
Chrome: The boundary event does not fire as expected. See bug 40715888.Chrome Android: The boundary event does not fire as expected. See bug 40715888.Quest Browser: The boundary event does not fire as expected. See bug 40715888.
api.SpeechSynthesisUtterance.end_event 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.error_event 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.lang 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.mark_event 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.pause_event 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.pitch 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.rate 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.resume_event 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.start_event 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.text 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.voice 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisUtterance.volume 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisVoice 📋Chrome2/20/2014 Firefox9/20/2016943
Firefox: In Firefox, speech synthesis voices do not start loading until after the first call to window.speechSynthesis.getVoices(). A way to mitigate this issue is to call the method at the beginning of page load, then wait a few seconds before calling the method again. Voices will remain loaded until all tabs that have called this method have been closed.
api.SpeechSynthesisVoice.default 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisVoice.lang 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisVoice.localService 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisVoice.name 📋Chrome2/20/2014 Firefox9/20/2016943
api.SpeechSynthesisVoice.voiceURI 📋Chrome2/20/2014 Firefox9/20/2016943
api.WebGLContextEvent 📋Chrome2/3/2011 Firefox9/20/20162056
api.WebGLContextEvent.WebGLContextEvent 📋Chrome2/8/2012 Firefox9/20/20161686
api.WebGLContextEvent.statusMessage 📋Chrome2/3/2011 Firefox9/20/20162056
api.Window.speechSynthesis 📋Chrome2/20/2014 Firefox9/20/2016943
api.isSecureContext 📋Chrome12/1/2015 Firefox9/20/2016294

2016/8

API First Browser Date Last Browser Date Days Notes
api.HTMLObjectElement.contentWindow 📋Firefox6/25/2013 Chrome8/31/20161163
api.MediaDevices.getSupportedConstraints 📋Firefox1/26/2016 Chrome8/31/2016218
api.MediaDevices.getSupportedConstraints.return_object_property_deviceId 📋Firefox1/26/2016 Chrome8/31/2016218
api.MediaDevices.getSupportedConstraints.return_object_property_echoCancellation 📋Firefox4/26/2016 Chrome8/31/2016127
api.MediaDevices.getSupportedConstraints.return_object_property_facingMode 📋Firefox1/26/2016 Chrome8/31/2016218
api.MediaDevices.getSupportedConstraints.return_object_property_frameRate 📋Firefox1/26/2016 Chrome8/31/2016218
api.MediaDevices.getSupportedConstraints.return_object_property_height 📋Firefox1/26/2016 Chrome8/31/2016218
api.MediaDevices.getSupportedConstraints.return_object_property_width 📋Firefox1/26/2016 Chrome8/31/2016218
api.MediaDevices.getUserMedia 📋Firefox2/24/2015 Chrome8/31/2016554
Chrome: If you need this capability before version 53, refer to navigator.webkitGetUserMedia, a prefixed form of the deprecated navigator.getUserMedia API.Chrome Android: If you need this capability before version 53, refer to navigator.webkitGetUserMedia, a prefixed form of the deprecated navigator.getUserMedia API.Firefox: If you need this capability before version 36, refer to navigator.mozGetUserMedia, a prefixed form of the deprecated navigator.getUserMedia API.Firefox: Before Firefox 55, getUserMedia() incorrectly returns NotSupportedError when the list of constraints specified is empty, or has all constraints set to false. Starting in Firefox 55, this situation now correctly calls the failure handler with a TypeError.Firefox: When using the Firefox-specific video constraint called mediaSource to request display capture, Firefox 66 and later consider values of screen and window to both cause a list of screens and windows to be shown.Firefox: Starting in Firefox 66, getUserMedia() can no longer be used in sandboxed <iframe>s or data URLs entered in the address bar by the user.Firefox for Android: If you need this capability before version 36, refer to navigator.mozGetUserMedia, a prefixed form of the deprecated navigator.getUserMedia API.Firefox for Android: Before Firefox for Android 55, getUserMedia() incorrectly returns NotSupportedError when the list of constraints specified is empty, or has all constraints set to false. Starting in Firefox for Android 55, this situation now correctly calls the failure handler with a TypeError.Firefox for Android: When using the Firefox for Android-specific video constraint called mediaSource to request display capture, Firefox for Android 66 and later consider values of screen and window to both cause a list of screens and windows to be shown.Firefox for Android: Starting in Firefox for Android 66, getUserMedia() can no longer be used in sandboxed <iframe>s or data URLs entered in the address bar by the user.Quest Browser: If you need this capability before version 5.0, refer to navigator.webkitGetUserMedia, a prefixed form of the deprecated navigator.getUserMedia API.Opera: If you need this capability before version 40, refer to navigator.webkitGetUserMedia, a prefixed form of the deprecated navigator.getUserMedia API.Opera Android: If you need this capability before version 41, refer to navigator.webkitGetUserMedia, a prefixed form of the deprecated navigator.getUserMedia API.
api.MediaSource.sourceended_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onsourceended event handler property is not supported.Chrome Android: The onsourceended event handler property is not supported.Edge: The onsourceended event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onsourceended event handler property is not supported.Opera Android: The onsourceended event handler property is not supported.Safari: The onsourceended event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onsourceended event handler property is not supported.WebView Android: The onsourceclose event handler property is not supported.
api.MediaSource.sourceopen_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onsourceopen event handler property is not supported.Chrome Android: The onsourceopen event handler property is not supported.Edge: The onsourceopen event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onsourceopen event handler property is not supported.Opera Android: The onsourceopen event handler property is not supported.Safari: The onsourceopen event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onsourceopen event handler property is not supported.WebView Android: The onsourceopen event handler property is not supported.
api.Navigator.getUserMedia 📋Firefox11/20/2012 Chrome8/31/20161380
api.SourceBuffer.abort_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onabort event handler property is not supported.Chrome Android: The onabort event handler property is not supported.Edge: The onabort event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onabort event handler property is not supported.Opera Android: The onabort event handler property is not supported.Safari: The onabort event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onabort event handler property is not supported.WebView Android: The onabort event handler property is not supported.
api.SourceBuffer.error_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onerror event handler property is not supported.Chrome Android: The onerror event handler property is not supported.Edge: The onerror event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onerror event handler property is not supported.Opera Android: The onerror event handler property is not supported.Safari: The onerror event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onerror event handler property is not supported.WebView Android: The onerror event handler property is not supported.
api.SourceBuffer.update_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onupdate event handler property is not supported.Chrome Android: The onupdate event handler property is not supported.Edge: The onupdate event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onupdate event handler property is not supported.Opera Android: The onupdate event handler property is not supported.Safari: The onupdate event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onupdate event handler property is not supported.WebView Android: The onupdate event handler property is not supported.
api.SourceBuffer.updateend_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onupdateend event handler property is not supported.Chrome Android: The onupdateend event handler property is not supported.Edge: The onupdateend event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onupdateend event handler property is not supported.Opera Android: The onupdateend event handler property is not supported.Safari: The onupdateend event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onupdateend event handler property is not supported.WebView Android: The onupdateend event handler property is not supported.
api.SourceBuffer.updatestart_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onupdatestart event handler property is not supported.Chrome Android: The onupdatestart event handler property is not supported.Edge: The onupdatestart event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onupdatestart event handler property is not supported.Opera Android: The onupdatestart event handler property is not supported.Safari: The onupdatestart event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onupdatestart event handler property is not supported.WebView Android: The onupdatestart event handler property is not supported.
api.SourceBufferList.addsourcebuffer_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onaddsourcebuffer event handler property is not supported.Chrome Android: The onaddsourcebuffer event handler property is not supported.Edge: The onaddsourcebuffer event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onaddsourcebuffer event handler property is not supported.Opera Android: The onaddsourcebuffer event handler property is not supported.Safari: The onaddsourcebuffer event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onaddsourcebuffer event handler property is not supported.WebView Android: The onaddsourcebuffer event handler property is not supported.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBufferList.removesourcebuffer_event 📋Firefox11/3/2015 Chrome8/31/2016302
Chrome: The onremovesourcebuffer event handler property is not supported.Chrome Android: The onremovesourcebuffer event handler property is not supported.Edge: The onremovesourcebuffer event handler property is not supported.Internet Explorer: Only works on Windows 8+.Opera: The onremovesourcebuffer event handler property is not supported.Opera Android: The onremovesourcebuffer event handler property is not supported.Safari: The onremovesourcebuffer event handler property is not supported.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: The onremovesourcebuffer event handler property is not supported.WebView Android: The onremovesourcebuffer event handler property is not supported.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.CSSKeyframeRule 📋Chrome11/12/2013 Firefox8/2/2016994
api.CSSKeyframesRule 📋Chrome11/12/2013 Firefox8/2/2016994
api.CanvasRenderingContext2D.ellipse 📋Chrome11/12/2013 Firefox8/2/2016994
api.CustomEvent.worker_support Chrome5/19/2015 Firefox8/2/2016441
api.Document.scrollingElement 📋Chrome7/21/2015 Firefox8/2/2016378
api.Element.animate 📋Chrome7/16/2014 Firefox8/2/2016748
api.Element.animate.options_id_parameter 📋Chrome4/13/2016 Firefox8/2/2016111
api.Element.insertAdjacentElement 📋Chrome12/11/2008 Firefox8/2/20162791
Edge: Only supported for HTMLElement, not all Element objects, such as SVGElement.Internet Explorer: Only supported for HTMLElement, not all Element objects, such as SVGElement.
api.Element.insertAdjacentText 📋Chrome12/11/2008 Firefox8/2/20162791
Edge: Only supported for HTMLElement, not all Element objects, such as SVGElement.Internet Explorer: Only supported for HTMLElement, not all Element objects, such as SVGElement.
api.MediaStream.clone 📋Chrome5/20/2014 Firefox8/2/2016805
api.MediaStreamTrack.clone 📋Chrome5/20/2014 Firefox8/2/2016805
api.Navigator.hardwareConcurrency 📋Chrome8/26/2014 Firefox8/2/2016707
Safari: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.Safari on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.WebView on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.
api.Node.isSameNode 📋Chrome12/11/2008 Firefox8/2/20162791
api.Path2D.ellipse 📋Chrome7/16/2014 Firefox8/2/2016748
api.SubtleCrypto.worker_support Chrome8/26/2014 Firefox8/2/2016707
api.WorkerNavigator.hardwareConcurrency 📋Chrome8/26/2014 Firefox8/2/2016707
Safari: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.Safari on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.WebView on iOS: The value of this property is clamped to 4 or 8 cores, to prevent device fingerprinting. See bug 233381.
api.crypto.worker_support Chrome8/26/2014 Firefox8/2/2016707

2016/7

API First Browser Date Last Browser Date Days Notes
api.HTMLAnchorElement.toString 📋Firefox6/25/2013 Chrome7/20/20161121
api.IDBKeyRange.includes 📋Firefox6/7/2016 Chrome7/20/201643
api.ImageBitmap.close 📋Firefox4/26/2016 Chrome7/20/201685
api.Location.toString 📋Firefox6/25/2013 Chrome7/20/20161121
Internet Explorer: Intranet sites are set to Compatibility View, which will emulate IE7 and omit window.location.toString.
api.Request.referrerPolicy 📋Firefox6/7/2016 Chrome7/20/201643
api.Response.Response.accept_readablestream Firefox7/2/2015 Chrome7/20/2016384

2016/6

API First Browser Date Last Browser Date Days Notes
api.ANGLE_instanced_arrays 📋Chrome1/14/2014 Firefox6/7/2016875
Chrome: Available only on macOS.Opera: Available only on macOS.
api.ANGLE_instanced_arrays.drawArraysInstancedANGLE 📋Chrome10/1/2013 Firefox6/7/2016980
api.ANGLE_instanced_arrays.drawElementsInstancedANGLE 📋Chrome10/1/2013 Firefox6/7/2016980
api.ANGLE_instanced_arrays.vertexAttribDivisorANGLE 📋Chrome10/1/2013 Firefox6/7/2016980
api.DOMTokenList.value 📋Chrome4/13/2016 Firefox6/7/201655
Chrome: Before Chrome 50, this property was part of the deprecated child DOMSettableTokenList interface.Chrome Android: Before Chrome Android 50, this property was part of the deprecated child DOMSettableTokenList interface.Quest Browser: Before Quest Browser 5.0, this property was part of the deprecated child DOMSettableTokenList interface.Opera: Before Opera 37, this property was part of the deprecated child DOMSettableTokenList interface.Opera Android: Before Opera Android 37, this property was part of the deprecated child DOMSettableTokenList interface.Samsung Internet: Before Samsung Internet 5.0, this property was part of the deprecated child DOMSettableTokenList interface.WebView Android: Before WebView Android 50, this property was part of the deprecated child DOMSettableTokenList interface.
api.EXT_blend_minmax 📋Chrome10/7/2014 Firefox6/7/2016609
Firefox: Not supported on Windows.
api.EXT_frag_depth 📋Chrome10/7/2014 Firefox6/7/2016609
api.EXT_shader_texture_lod 📋Chrome10/7/2014 Firefox6/7/2016609
api.EXT_texture_filter_anisotropic 📋Chrome4/8/2014 Firefox6/7/2016791
api.FormData.forEach Chrome4/13/2016 Firefox6/7/201655
api.Headers.forEach Chrome4/14/2015 Firefox6/7/2016420
api.MediaKeyStatusMap.forEach Chrome4/14/2015 Firefox6/7/2016420
api.Request.Request.init_referrer_parameter 📋Chrome12/1/2015 Firefox6/7/2016189

2016/5

API First Browser Date Last Browser Date Days Notes
api.CSSStyleDeclaration.@@iterator Firefox2/24/2015 Chrome5/25/2016456
api.Clients.get 📋Firefox3/8/2016 Chrome5/25/201678
api.ExtendableMessageEvent 📋Firefox1/26/2016 Chrome5/25/2016120
api.ExtendableMessageEvent.ExtendableMessageEvent 📋Firefox1/26/2016 Chrome5/25/2016120
api.ExtendableMessageEvent.data 📋Firefox1/26/2016 Chrome5/25/2016120
api.ExtendableMessageEvent.lastEventId 📋Firefox1/26/2016 Chrome5/25/2016120
api.ExtendableMessageEvent.origin 📋Firefox1/26/2016 Chrome5/25/2016120
api.ExtendableMessageEvent.ports 📋Firefox1/26/2016 Chrome5/25/2016120
api.ExtendableMessageEvent.source 📋Firefox1/26/2016 Chrome5/25/2016120
api.HTMLCanvasElement.captureStream 📋Firefox12/15/2015 Chrome5/25/2016162
api.KeyboardEvent.key 📋Firefox8/6/2013 Chrome5/25/20161023
Chrome: When selecting an autocomplete suggestion, a keydown event fires where the event's key property is undefined. See bug 41425904.Chrome Android: When selecting an autocomplete suggestion, a keydown event fires where the event's key property is undefined. See bug 41425904.Internet Explorer: IE's implementation does not completely match the current spec because it is based on an older version of the spec.Quest Browser: When selecting an autocomplete suggestion, a keydown event fires where the event's key property is undefined. See bug 41425904.Opera: When selecting an autocomplete suggestion, a keydown event fires where the event's key property is undefined. See bug 41425904.Opera Android: When selecting an autocomplete suggestion, a keydown event fires where the event's key property is undefined. See bug 41425904.Samsung Internet: When selecting an autocomplete suggestion, a keydown event fires where the event's key property is undefined. See bug 41425904.WebView Android: When selecting an autocomplete suggestion, a keydown event fires where the event's key property is undefined. See bug 41425904.
api.KeyboardEvent.key.dead_key Firefox3/31/2015 Chrome5/25/2016421
api.KeyboardEvent.key.non_printable_keys Firefox8/6/2013 Chrome5/25/20161023
Internet Explorer: IE's implementation does not completely match the current spec because it is based on an older version of the spec.
api.KeyboardEvent.key.printable_key Firefox4/29/2014 Chrome5/25/2016757
Internet Explorer: IE's implementation does not completely match the current spec because it is based on an older version of the spec.
api.NodeList.@@iterator 📋Firefox2/24/2015 Chrome5/25/2016456
api.RTCPeerConnection.createAnswer.returns_promise Firefox3/31/2015 Chrome5/25/2016421
api.RTCPeerConnection.createOffer.returns_promise Firefox3/31/2015 Chrome5/25/2016421
api.URL.searchParams 📋Firefox4/29/2014 Chrome5/25/2016757
Node.js: An object matching the URLSearchParams interface is returned, but it contains no data.
api.Window.beforeunload_event.generic_string_displayed Firefox1/26/2016 Chrome5/25/2016120

2016/4

API First Browser Date Last Browser Date Days Notes
api.Document.elementsFromPoint 📋Chrome5/19/2015 Firefox4/26/2016343
Chrome: Before Chrome 66, this method returned null when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned null when the element was a child of a host node. See bug 40537452.Edge: Returns a NodeList instead of an array. See the MSDN documentation. Returns null when the point provided has no elements beneath it (e.g., when given a point outside the document).Internet Explorer: Returns a NodeList instead of an array. See the MSDN documentation. Returns null when the point provided has no elements beneath it (e.g., when given a point outside the document).Quest Browser: Before Quest Browser 5.0, this method returned null when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned null when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned null when the element was a child of a host node. See bug 40537452.
api.FileReader.worker_support Chrome9/2/2010 Firefox4/26/20162063
api.History.scrollRestoration 📋Chrome10/13/2015 Firefox4/26/2016196
api.Navigator.permissions 📋Chrome5/19/2015 Firefox4/26/2016343
api.Notification.requestPermission_static.returns_promise Chrome12/1/2015 Firefox4/26/2016147
api.PermissionStatus 📋Chrome5/19/2015 Firefox4/26/2016343
api.PermissionStatus.change_event 📋Chrome5/19/2015 Firefox4/26/2016343
Safari: The onchange event handler is supported, but the event never fires. See bug 259432.Safari on iOS: The onchange event handler is supported, but the event never fires. See bug 259432.WebView on iOS: The onchange event handler is supported, but the event never fires. See bug 259432.
api.PermissionStatus.state 📋Chrome7/21/2015 Firefox4/26/2016280
api.Permissions 📋Chrome5/19/2015 Firefox4/26/2016343
api.Permissions.permission_geolocation Chrome5/19/2015 Firefox4/26/2016343
api.Permissions.permission_notifications Chrome5/19/2015 Firefox4/26/2016343
Firefox: Alias for the push permission (returns the same value).Firefox for Android: Alias for the push permission (returns the same value).
api.Permissions.permission_push Chrome5/19/2015 Firefox4/26/2016343
Firefox: Alias for the notifications permission (returns the same value).Firefox for Android: Alias for the notifications permission (returns the same value).
api.Permissions.query 📋Chrome5/19/2015 Firefox4/26/2016343
api.Request.mode.navigate_mode Chrome3/2/2016 Firefox4/26/201655
api.CanvasRenderingContext2D.drawImage.ImageBitmap_source_image Firefox11/3/2015 Chrome4/13/2016162
api.FormData.@@iterator Firefox1/26/2016 Chrome4/13/201678
api.FormData.delete 📋Firefox7/2/2015 Chrome4/13/2016286
api.FormData.entries Firefox1/26/2016 Chrome4/13/201678
api.FormData.get 📋Firefox7/2/2015 Chrome4/13/2016286
api.FormData.getAll 📋Firefox7/2/2015 Chrome4/13/2016286
api.FormData.has 📋Firefox7/2/2015 Chrome4/13/2016286
api.FormData.keys Firefox1/26/2016 Chrome4/13/201678
api.FormData.set 📋Firefox7/2/2015 Chrome4/13/2016286
api.FormData.values Firefox1/26/2016 Chrome4/13/201678
api.FormData.worker_support Firefox7/2/2015 Chrome4/13/2016286
api.HTMLCanvasElement.toBlob 📋Firefox1/8/2013 Chrome4/13/20161191
api.HTMLCanvasElement.toBlob.quality_parameter Firefox10/29/2013 Chrome4/13/2016897
api.HTMLCanvasElement.toBlob.type_parameter_jpeg Firefox1/8/2013 Chrome4/13/20161191
api.HTMLCanvasElement.toBlob.type_parameter_png Firefox1/8/2013 Chrome4/13/20161191
api.HTMLCanvasElement.toDataURL.type_parameter_jpeg Firefox1/8/2013 Chrome4/13/20161191
api.HTMLCanvasElement.toDataURL.type_parameter_png Firefox1/8/2013 Chrome4/13/20161191
api.HTMLLinkElement.relList 📋Firefox6/10/2014 Chrome4/13/2016673
api.ImageBitmap 📋Firefox11/3/2015 Chrome4/13/2016162
api.ImageBitmap.height 📋Firefox11/3/2015 Chrome4/13/2016162
api.ImageBitmap.width 📋Firefox11/3/2015 Chrome4/13/2016162
api.PushEvent.data 📋Firefox1/26/2016 Chrome4/13/201678
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData 📋Firefox1/26/2016 Chrome4/13/201678
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.arrayBuffer 📋Firefox1/26/2016 Chrome4/13/201678
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.blob 📋Firefox1/26/2016 Chrome4/13/201678
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.json 📋Firefox1/26/2016 Chrome4/13/201678
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushMessageData.text 📋Firefox1/26/2016 Chrome4/13/201678
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.RTCPeerConnection.addIceCandidate.returns_promise Firefox3/31/2015 Chrome4/13/2016379
api.RTCPeerConnection.setLocalDescription.returns_promise Firefox3/31/2015 Chrome4/13/2016379
api.RTCPeerConnection.setRemoteDescription.returns_promise Firefox3/31/2015 Chrome4/13/2016379
api.ServiceWorkerGlobalScope.notificationclose_event 📋Firefox1/26/2016 Chrome4/13/201678
Safari: Notifications are supported on macOS Ventura and later.
api.createImageBitmap 📋Firefox11/3/2015 Chrome4/13/2016162

2016/3

API First Browser Date Last Browser Date Days Notes
api.FetchEvent.clientId 📋Chrome3/2/2016 Firefox3/8/20166
api.HTMLElement.innerText 📋Chrome12/11/2008 Firefox3/8/20162644
api.HTMLScriptElement.innerText 📋Chrome12/11/2008 Firefox3/8/20162644
api.MediaKeyStatusMap.@@iterator Chrome4/14/2015 Firefox3/8/2016329
api.MediaKeyStatusMap.get 📋Chrome4/14/2015 Firefox3/8/2016329
api.MediaKeyStatusMap.has 📋Chrome4/14/2015 Firefox3/8/2016329
api.Window.storage_event 📋Chrome12/11/2008 Firefox3/8/20162644
api.BaseAudioContext.decodeAudioData.returns_promise Firefox2/24/2015 Chrome3/2/2016372
api.BlobEvent 📋Firefox5/14/2013 Chrome3/2/20161023
api.BlobEvent.BlobEvent 📋Firefox5/14/2013 Chrome3/2/20161023
api.BlobEvent.data 📋Firefox5/14/2013 Chrome3/2/20161023
api.MediaRecorder.MediaRecorder.options_parameter Firefox12/15/2015 Chrome3/2/201678
api.MediaRecorder.dataavailable_event 📋Firefox10/29/2013 Chrome3/2/2016855
api.MediaRecorder.error_event 📋Firefox10/29/2013 Chrome3/2/2016855
Chrome: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.Chrome Android: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.Edge: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.Quest Browser: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.Opera: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.Opera Android: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.Samsung Internet: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.WebView Android: The interface for this event is a plain Event, not ErrorEvent. See bug 40791876.
api.MediaRecorder.mimeType 📋Firefox10/29/2013 Chrome3/2/2016855
Chrome: Before Chrome 49, only video is supported, not audio.Chrome Android: Before Chrome Android 49, only video is supported, not audio.Firefox: Starting with Firefox 71, the behavior of mimeType is more consistent. For example, it now returns the media type even after recording has stopped.WebView Android: Before WebView Android 49, only video is supported, not audio.
api.MediaRecorder.pause 📋Firefox10/29/2013 Chrome3/2/2016855
api.MediaRecorder.requestData 📋Firefox10/29/2013 Chrome3/2/2016855
api.MediaRecorder.resume 📋Firefox10/29/2013 Chrome3/2/2016855
api.MediaRecorder.start_event 📋Firefox10/29/2013 Chrome3/2/2016855
api.MediaRecorder.state 📋Firefox10/29/2013 Chrome3/2/2016855
Chrome: Before Chrome 49, only video is supported, not audio.Chrome Android: Before Chrome Android 49, only video is supported, not audio.WebView Android: Before WebView Android 49, only video is supported, not audio.
api.MediaRecorder.stop 📋Firefox10/29/2013 Chrome3/2/2016855
api.MediaRecorder.stop_event 📋Firefox10/29/2013 Chrome3/2/2016855
api.MediaRecorder.stream 📋Firefox10/29/2013 Chrome3/2/2016855
Chrome: Before Chrome 49, only video is supported, not audio.Chrome Android: Before Chrome Android 49, only video is supported, not audio.
api.RTCCertificate 📋Firefox11/3/2015 Chrome3/2/2016120
api.RTCCertificate.expires 📋Firefox11/3/2015 Chrome3/2/2016120
api.RTCPeerConnection.RTCPeerConnection.configuration_certificates_parameter 📋Firefox11/3/2015 Chrome3/2/2016120
api.URLSearchParams 📋Firefox4/29/2014 Chrome3/2/2016673
Firefox: Before version 57 single quotes in URLs were escaped (see bug 1386683).Firefox for Android: Before version 57 single quotes in URLs were escaped (see bug 1386683).Node.js: Available as a part of the url module.Node.js: Only available as an internal instance, but can be accessed via the searchParams property of the URL interface.Node.js: Available as a part of the url module.
api.URLSearchParams.@@iterator 📋Firefox1/26/2016 Chrome3/2/201636
api.URLSearchParams.URLSearchParams 📋Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.URLSearchParams.USVString Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.append 📋Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.delete 📋Firefox4/29/2014 Chrome3/2/2016673
Safari: Removing a non-existent query parameter doesn't remove ? from the URL. See bug 193022.Safari on iOS: Removing a non-existent query parameter doesn't remove ? from the URL. See bug 193022.WebView on iOS: Removing a non-existent query parameter doesn't remove ? from the URL. See bug 193022.
api.URLSearchParams.entries 📋Firefox1/26/2016 Chrome3/2/201636
api.URLSearchParams.forEach 📋Firefox1/26/2016 Chrome3/2/201636
api.URLSearchParams.get 📋Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.getAll 📋Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.has 📋Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.keys 📋Firefox1/26/2016 Chrome3/2/201636
api.URLSearchParams.set 📋Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.toString 📋Firefox4/29/2014 Chrome3/2/2016673
api.URLSearchParams.values 📋Firefox1/26/2016 Chrome3/2/201636

2016/1

API First Browser Date Last Browser Date Days Notes
api.Cache.worker_support Chrome1/21/2015 Firefox1/26/2016370
Chrome: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Chrome Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Quest Browser: Before version 5.0, only service workers are supported. From version 5.0, all worker types and the main thread are supported.Opera: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.Opera Android: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.WebView Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.
api.CacheStorage.worker_support Chrome5/19/2015 Firefox1/26/2016252
Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.Client 📋Chrome1/21/2015 Firefox1/26/2016370
api.Client.frameType 📋Chrome5/19/2015 Firefox1/26/2016252
api.Client.id 📋Chrome1/21/2015 Firefox1/26/2016370
api.Client.postMessage 📋Chrome1/21/2015 Firefox1/26/2016370
api.Client.url 📋Chrome1/21/2015 Firefox1/26/2016370
api.Clients 📋Chrome1/21/2015 Firefox1/26/2016370
api.Clients.claim 📋Chrome4/14/2015 Firefox1/26/2016287
api.Clients.matchAll.options_includeUncontrolled_parameter 📋Chrome4/14/2015 Firefox1/26/2016287
Chrome: Client objects returned in most recent focus order.Chrome Android: Client objects returned in most recent focus order.Edge: Client objects returned in most recent focus order.Quest Browser: Client objects returned in most recent focus order.Samsung Internet: Client objects returned in most recent focus order.WebView Android: Client objects returned in most recent focus order.
api.Clients.openWindow 📋Chrome1/21/2015 Firefox1/26/2016370
Chrome: Before Chrome 43, this method could only open URLs on the same origin.Chrome: Since Chrome 51, URLs may open inside an existing browsing context provided by a standalone web app.Chrome Android: Before Chrome Android 43, this method could only open URLs on the same origin.Chrome Android: Since Chrome Android 51, URLs may open inside an existing browsing context provided by a standalone web app.Quest Browser: Before Quest Browser 5.0, this method could only open URLs on the same origin.Quest Browser: Since Quest Browser 5.0, URLs may open inside an existing browsing context provided by a standalone web app.Samsung Internet: Before Samsung Internet 4.0, this method could only open URLs on the same origin.Samsung Internet: Since Samsung Internet 5.0, URLs may open inside an existing browsing context provided by a standalone web app.WebView Android: Before WebView Android 43, this method could only open URLs on the same origin.WebView Android: Since WebView Android 51, URLs may open inside an existing browsing context provided by a standalone web app.
api.Document.createAttribute 📋Chrome12/11/2008 Firefox1/26/20162602
Firefox: The parameter was not converted to its lowercase variant.Firefox for Android: The parameter was not converted to its lowercase variant.
api.ExtendableEvent 📋Chrome1/21/2015 Firefox1/26/2016370
api.ExtendableEvent.ExtendableEvent 📋Chrome3/3/2015 Firefox1/26/2016329
api.ExtendableEvent.waitUntil 📋Chrome1/21/2015 Firefox1/26/2016370
api.FetchEvent 📋Chrome1/21/2015 Firefox1/26/2016370
api.FetchEvent.FetchEvent 📋Chrome7/21/2015 Firefox1/26/2016189
api.FetchEvent.request 📋Chrome1/21/2015 Firefox1/26/2016370
api.FetchEvent.respondWith 📋Chrome4/14/2015 Firefox1/26/2016287
api.Headers.@@iterator Chrome4/14/2015 Firefox1/26/2016287
api.Headers.entries Chrome4/14/2015 Firefox1/26/2016287
api.Headers.keys Chrome4/14/2015 Firefox1/26/2016287
api.Headers.values Chrome4/14/2015 Firefox1/26/2016287
api.IDBIndex.getAll 📋Chrome1/20/2016 Firefox1/26/20166
api.IDBIndex.getAllKeys 📋Chrome1/20/2016 Firefox1/26/20166
api.IDBObjectStore.getAll 📋Chrome1/20/2016 Firefox1/26/20166
api.IDBObjectStore.getAllKeys 📋Chrome1/20/2016 Firefox1/26/20166
api.IDBObjectStore.openKeyCursor 📋Chrome11/6/2012 Firefox1/26/20161176
api.MediaStream.addTrack 📋Chrome3/26/2013 Firefox1/26/20161036
api.MediaStream.removeTrack 📋Chrome3/26/2013 Firefox1/26/20161036
api.Navigator.serviceWorker 📋Chrome1/21/2015 Firefox1/26/2016370
Firefox: In Firefox private windows, the serviceWorker object is undefined. See bug 1320796.Firefox for Android: In Firefox for Android private windows, the serviceWorker object is undefined. See bug 1320796.
api.NotificationEvent 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.NotificationEvent.NotificationEvent 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.NotificationEvent.action 📋Chrome1/20/2016 Firefox1/26/20166
api.NotificationEvent.notification 📋Chrome4/14/2015 Firefox1/26/2016287
api.PushEvent 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushEvent.PushEvent 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.getSubscription 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.hasPermission Chrome4/14/2015 Firefox1/26/2016287
api.PushManager.permissionState 📋Chrome7/21/2015 Firefox1/26/2016189
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.register Chrome4/14/2015 Firefox1/26/2016287
api.PushManager.registrations Chrome4/14/2015 Firefox1/26/2016287
api.PushManager.subscribe 📋Chrome4/14/2015 Firefox1/26/2016287
Chrome: The options parameter with a applicationServerKey value is required.Chrome Android: The options parameter with a applicationServerKey value is required.Edge: The options parameter with a applicationServerKey value is required.Firefox: From Firefox 72 onwards, can only be called in response to a user gesture such as a click event.Firefox for Android: From Firefox Android 79 onwards, can only be called in response to a user gesture such as a click event.Quest Browser: The options parameter with a applicationServerKey value is required.Opera Android: The options parameter with a applicationServerKey value is required.Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.Samsung Internet: The options parameter with a applicationServerKey value is required.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushManager.unregister Chrome4/14/2015 Firefox1/26/2016287
api.PushSubscription 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.endpoint 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.getKey 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.toJSON 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.PushSubscription.unsubscribe 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.RTCDataChannel.bufferedAmountLowThreshold 📋Chrome10/13/2015 Firefox1/26/2016105
api.RTCIceCandidate 📋Chrome11/6/2012 Firefox1/26/20161176
api.RTCIceCandidate.RTCIceCandidate 📋Chrome11/6/2012 Firefox1/26/20161176
Firefox: Before Firefox 68, the constructor's candidateInfo parameter is required and the candidateInfo object must have a candidate property.Firefox: Before Firefox 68, the constructor's candidateInfo parameter is required and the candidateInfo object must have a candidate property.Firefox for Android: Before Firefox 68, the constructor's candidateInfo parameter is required and the candidateInfo object must have a candidate property.Firefox for Android: Before Firefox 68, the constructor's candidateInfo parameter is required and the candidateInfo object must have a candidate property.
api.RTCSessionDescription 📋Chrome11/6/2012 Firefox1/26/20161176
api.RTCSessionDescription.RTCSessionDescription Chrome11/6/2012 Firefox1/26/20161176
api.ServiceWorker 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorker.error_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorker.postMessage 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorker.scriptURL 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorker.state 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorker.statechange_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerContainer 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerContainer.controller 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerContainer.controllerchange_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerContainer.getRegistration 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerContainer.getRegistrations 📋Chrome9/1/2015 Firefox1/26/2016147
api.ServiceWorkerContainer.message_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerContainer.ready 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerContainer.register 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerGlobalScope 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerGlobalScope.activate_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerGlobalScope.clients 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerGlobalScope.fetch_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerGlobalScope.install_event 📋Chrome1/21/2015 Firefox1/26/2016370
Firefox: The install event handler is called with an ExtendableEvent, not an InstallEvent.Firefox for Android: The install event handler is called with an ExtendableEvent, not an InstallEvent.Safari: Returns ExtendableEvent instead of InstallEvent.Safari on iOS: Returns ExtendableEvent instead of InstallEvent.
api.ServiceWorkerGlobalScope.message_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerGlobalScope.notificationclick_event 📋Chrome1/21/2015 Firefox1/26/2016370
Safari: Notifications are supported on macOS Ventura and later.
api.ServiceWorkerGlobalScope.push_event 📋Chrome1/21/2015 Firefox1/26/2016370
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerGlobalScope.registration 📋Chrome4/14/2015 Firefox1/26/2016287
api.ServiceWorkerGlobalScope.skipWaiting 📋Chrome3/3/2015 Firefox1/26/2016329
api.ServiceWorkerRegistration 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerRegistration.active 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerRegistration.getNotifications 📋Chrome1/21/2015 Firefox1/26/2016370
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerRegistration.installing 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerRegistration.pushManager 📋Chrome1/21/2015 Firefox1/26/2016370
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerRegistration.scope 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerRegistration.showNotification 📋Chrome4/14/2015 Firefox1/26/2016287
Safari: Notifications are supported on macOS Ventura and later.Safari on iOS: Notifications are supported in web apps saved to the home screen.WebView on iOS: Notifications are supported in web apps saved to the home screen.
api.ServiceWorkerRegistration.unregister 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerRegistration.update 📋Chrome9/1/2015 Firefox1/26/2016147
Chrome: Starting with Chrome 46, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Chrome: Before Chrome 48, this method always bypassed the browser cache. Starting with Chrome 48, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Chrome Android: Starting with Chrome Android 46, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Chrome Android: Before Chrome Android 48, this method always bypassed the browser cache. Starting with Chrome Android 48, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Quest Browser: Starting with Quest Browser 5.0, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Quest Browser: Before Quest Browser 5.0, this method always bypassed the browser cache. Starting with Quest Browser 5.0, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Opera: Starting with Opera 33, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Opera: Before Opera 35, this method always bypassed the browser cache. Starting with Opera 35, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Opera Android: Starting with Opera Android 33, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Opera Android: Before Opera Android 35, this method always bypassed the browser cache. Starting with Opera Android 35, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.Samsung Internet: Starting with Samsung Internet 5.0, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.Samsung Internet: Before Samsung Internet 5.0, this method always bypassed the browser cache. Starting with Samsung Internet 5.0, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.WebView Android: Starting with WebView Android 46, update() returns a promise that resolves with 'undefined' if the operation completed successfully or there was no update, and rejects if update failed. If the new worker ran but installation failed, the promise still resolves. Formerly, it raised an exception.WebView Android: Before WebView Android 48, this method always bypassed the browser cache. Starting with WebView Android 48, it only bypasses the cache when the previous service worker check was more than twenty-four hours ago.
api.ServiceWorkerRegistration.updatefound_event 📋Chrome1/21/2015 Firefox1/26/2016370
api.ServiceWorkerRegistration.waiting 📋Chrome1/21/2015 Firefox1/26/2016370
api.WindowClient 📋Chrome4/14/2015 Firefox1/26/2016287
api.WindowClient.focus 📋Chrome4/14/2015 Firefox1/26/2016287
api.WindowClient.focused 📋Chrome4/14/2015 Firefox1/26/2016287
api.WindowClient.visibilityState 📋Chrome4/14/2015 Firefox1/26/2016287
api.FontFaceSet.@@iterator 📋Firefox9/22/2015 Chrome1/20/2016120
api.FontFaceSet.entries Firefox9/22/2015 Chrome1/20/2016120
api.FontFaceSet.keys Firefox9/22/2015 Chrome1/20/2016120
api.FontFaceSet.values Firefox9/22/2015 Chrome1/20/2016120
api.IDBTransaction.objectStoreNames 📋Firefox1/31/2012 Chrome1/20/20161450
api.KeyboardEvent.code 📋Firefox5/12/2015 Chrome1/20/2016253
Chrome Android: The value is always empty.Firefox for Android: The value is always empty.Quest Browser: The value is always empty.Opera Android: The value is always empty.Samsung Internet: The value is always empty.WebView Android: The value is always empty.
api.KeyboardEvent.getModifierState.key_parameter_accel Firefox9/2/2014 Chrome1/20/2016505
api.KeyboardEvent.getModifierState.key_parameter_altgraph Firefox8/28/2012 Chrome1/20/20161240
api.KeyboardEvent.getModifierState.key_parameter_capslock Firefox8/28/2012 Chrome1/20/20161240
api.KeyboardEvent.getModifierState.key_parameter_fn Firefox8/28/2012 Chrome1/20/20161240
api.KeyboardEvent.getModifierState.key_parameter_numlock Firefox8/28/2012 Chrome1/20/20161240
api.KeyboardEvent.getModifierState.key_parameter_os Firefox8/28/2012 Chrome1/20/20161240
api.KeyboardEvent.getModifierState.key_parameter_scrolllock Firefox8/28/2012 Chrome1/20/20161240
api.RTCPeerConnection.generateCertificate_static 📋Firefox6/25/2013 Chrome1/20/2016939
api.fetch.blob_data_support Firefox7/2/2015 Chrome1/20/2016202

2015/12

API First Browser Date Last Browser Date Days Notes
api.HTMLLinkElement.integrity 📋Chrome9/1/2015 Firefox12/15/2015105
api.HTMLScriptElement.integrity 📋Chrome9/1/2015 Firefox12/15/2015105
api.MediaKeySystemAccess.getConfiguration 📋Chrome4/14/2015 Firefox12/15/2015245
Firefox: Before Firefox 50, the returned object has neither a distinctiveIdentifier nor a persistentState property.Firefox for Android: Before Firefox for Android 50, the returned object has neither a distinctiveIdentifier nor a persistentState property.
api.Request.redirect 📋Chrome10/13/2015 Firefox12/15/201563
Deno: Fetching with a "manual" redirect mode does not result in a "opaqueredirect" response, but a regular response.
api.Screen.orientation 📋Chrome10/7/2014 Firefox12/15/2015434
Edge: Edge does not return an Orientation object; instead, it returns the orientation type as a string.Internet Explorer: Not supported on Windows 7.
api.ScreenOrientation 📋Chrome10/7/2014 Firefox12/15/2015434
api.ScreenOrientation.angle 📋Chrome10/7/2014 Firefox12/15/2015434
api.ScreenOrientation.change_event 📋Chrome10/7/2014 Firefox12/15/2015434
api.ScreenOrientation.type 📋Chrome10/7/2014 Firefox12/15/2015434
api.Cache.matchAll 📋Firefox9/22/2015 Chrome12/1/201570
Opera: Requires HTTPS.
api.MediaDeviceInfo 📋Firefox7/2/2015 Chrome12/1/2015152
api.MediaDeviceInfo.deviceId 📋Firefox7/2/2015 Chrome12/1/2015152
api.MediaDeviceInfo.groupId 📋Firefox7/2/2015 Chrome12/1/2015152
Firefox: Before Firefox 67, related devices are not actually grouped together by groupId.Firefox for Android: Before Firefox for Android 67, related devices are not actually grouped together by groupId.
api.MediaDeviceInfo.kind 📋Firefox7/2/2015 Chrome12/1/2015152
api.MediaDeviceInfo.label 📋Firefox7/2/2015 Chrome12/1/2015152
api.MediaDeviceInfo.toJSON 📋Firefox11/3/2015 Chrome12/1/201528
api.MediaDevices 📋Firefox10/14/2014 Chrome12/1/2015413
api.MediaRecorder 📋Firefox10/29/2013 Chrome12/1/2015763
Firefox: Before Firefox 58, using MediaStream.addTrack() on a stream obtained using getUserMedia(), then attempting to record the resulting stream would result in only recording the original stream without the added tracks (severe bug).Firefox for Android: Before Firefox for Android 58, using MediaStream.addTrack() on a stream obtained using getUserMedia(), then attempting to record the resulting stream would result in only recording the original stream without the added tracks (severe bug).
api.MediaRecorder.MediaRecorder 📋Firefox10/29/2013 Chrome12/1/2015763
api.MediaRecorder.isTypeSupported_static 📋Firefox10/29/2013 Chrome12/1/2015763
api.MediaRecorder.start 📋Firefox10/29/2013 Chrome12/1/2015763
api.MouseEvent.getModifierState 📋Firefox8/28/2012 Chrome12/1/20151190
api.Navigator.mediaDevices 📋Firefox2/24/2015 Chrome12/1/2015280

2015/11

API First Browser Date Last Browser Date Days Notes
api.IDBCursorWithValue.worker_support Chrome11/6/2012 Firefox11/3/20151092
api.MediaSource 📋Chrome11/12/2013 Firefox11/3/2015721
Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.MediaSource 📋Chrome11/12/2013 Firefox11/3/2015721
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.activeSourceBuffers 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.addSourceBuffer 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.duration 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.endOfStream 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.isTypeSupported_static 📋Chrome11/6/2012 Firefox11/3/20151092
Chrome: codecs string can contain any subset of optional parameters (should be all or none).Chrome: Errors if codecs string contains unexpected characters (should evaluate string up to character).Chrome Android: codecs string can contain any subset of optional parameters (should be all or none).Chrome Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).Edge: codecs string can contain any subset of optional parameters (should be all or none).Edge: Errors if codecs string contains unexpected characters (should evaluate string up to character).Firefox: Before Firefox 101, isTypeSupported() ignored codecs parameter options for av01 codecs (treating them as av1).Firefox for Android: Before Firefox 101, isTypeSupported() ignored codecs parameter options for av01 codecs (treating them as av1).Internet Explorer: Only works on Windows 8+.Quest Browser: codecs string can contain any subset of optional parameters (should be all or none).Quest Browser: Errors if codecs string contains unexpected characters (should evaluate string up to character).Opera: codecs string can contain any subset of optional parameters (should be all or none).Opera: Errors if codecs string contains unexpected characters (should evaluate string up to character).Opera Android: codecs string can contain any subset of optional parameters (should be all or none).Opera Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.Samsung Internet: codecs string can contain any subset of optional parameters (should be all or none).Samsung Internet: Errors if codecs string contains unexpected characters (should evaluate string up to character).WebView Android: codecs string can contain any subset of optional parameters (should be all or none).WebView Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).
api.MediaSource.readyState 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.removeSourceBuffer 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.MediaSource.sourceBuffers 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.RTCPeerConnection.RTCPeerConnection.configuration_bundlePolicy_parameter 📋Chrome4/14/2015 Firefox11/3/2015203
api.SourceBuffer 📋Chrome11/12/2013 Firefox11/3/2015721
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.abort 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.appendBuffer 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.appendWindowEnd 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.appendWindowStart 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.buffered 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.mode 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.remove 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.timestampOffset 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBuffer.updating 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBufferList 📋Chrome11/12/2013 Firefox11/3/2015721
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.SourceBufferList.length 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.Safari on iOS: Exposed in Mobile Safari on iPad but not on iPhone.WebView on iOS: Exposed in Mobile Safari on iPad but not on iPhone.
api.VideoPlaybackQuality 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.
api.VideoPlaybackQuality.creationTime 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.
api.VideoPlaybackQuality.droppedVideoFrames 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.
api.VideoPlaybackQuality.totalVideoFrames 📋Chrome11/6/2012 Firefox11/3/20151092
Internet Explorer: Only works on Windows 8+.

2015/10

API First Browser Date Last Browser Date Days Notes
api.CSS.escape_static 📋Firefox7/22/2014 Chrome10/13/2015448
api.Cache.addAll 📋Firefox9/22/2015 Chrome10/13/201521
Chrome: Requires HTTPS.Chrome Android: Requires HTTPS.Quest Browser: Requires HTTPS.Opera: Requires HTTPS.Opera Android: Requires HTTPS.Samsung Internet: Requires HTTPS.WebView Android: Requires HTTPS.
api.DOMException.DOMException 📋Firefox3/31/2015 Chrome10/13/2015196
api.DragEvent 📋Firefox6/30/2009 Chrome10/13/20152296
Internet Explorer: Before Internet Explorer 10, DragEvent is exposed in standards mode but not quirks mode.
api.DragEvent.DragEvent 📋Firefox6/30/2009 Chrome10/13/20152296
api.DragEvent.dataTransfer 📋Firefox6/30/2009 Chrome10/13/20152296
Internet Explorer: The value is always null.
api.Event.isTrusted 📋Firefox11/29/2005 Chrome10/13/20153605
Chrome: Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.Chrome Android: Starting with Chrome Android 53 and Opera 40, untrusted events do not invoke the default action.Internet Explorer: In Internet Explorer, all events are trusted except those that are created with the createEvent() method.Quest Browser: Starting with Quest Browser 5.0 and Opera 40, untrusted events do not invoke the default action.Opera: Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.Opera Android: Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.Samsung Internet: Starting with Samsung Internet 6.0 and Opera 40, untrusted events do not invoke the default action.WebView Android: Starting with version 53, untrusted events do not invoke the default action.
api.Performance.clearResourceTimings 📋Firefox1/13/2015 Chrome10/13/2015273
api.Performance.resourcetimingbufferfull_event 📋Firefox1/13/2015 Chrome10/13/2015273
api.Performance.setResourceTimingBufferSize 📋Firefox1/13/2015 Chrome10/13/2015273
api.PerformanceEntry 📋Firefox1/13/2015 Chrome10/13/2015273
Node.js: Available as a part of the perf_hooks module.

2015/9

API First Browser Date Last Browser Date Days Notes
api.Cache 📋Chrome1/21/2015 Firefox9/22/2015244
Chrome: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Chrome Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.Quest Browser: Before version 5.0, only service workers are supported. From version 5.0, all worker types and the main thread are supported.Opera: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.Opera Android: Before version 30, only service workers are supported. From version 30, all worker types and the main thread are supported.WebView Android: Before version 43, only service workers are supported. From version 43, all worker types and the main thread are supported.
api.Cache.add 📋Chrome7/21/2015 Firefox9/22/201563
Chrome: Requires HTTPS from version 46.Chrome Android: Requires HTTPS from version 46.Quest Browser: Requires HTTPS from version 5.0.Opera: Requires HTTPS from version 33.Opera Android: Requires HTTPS from version 33.Samsung Internet: Requires HTTPS from Samsung Internet 5.0.WebView Android: Requires HTTPS from version 46.
api.Cache.delete 📋Chrome5/19/2015 Firefox9/22/2015126
Deno: Doesn't support query options
api.Cache.keys 📋Chrome5/19/2015 Firefox9/22/2015126
api.Cache.match 📋Chrome5/19/2015 Firefox9/22/2015126
Deno: Doesn't support query options
api.Cache.put 📋Chrome5/19/2015 Firefox9/22/2015126
Chrome: Requires HTTPS from version 46.Chrome Android: Requires HTTPS from version 46.Quest Browser: Requires HTTPS from version 5.0.Opera: Requires HTTPS from version 33.Opera Android: Requires HTTPS from version 33.Samsung Internet: Requires HTTPS from Samsung Internet 5.0.WebView Android: Requires HTTPS from version 46.
api.CacheStorage 📋Chrome5/19/2015 Firefox9/22/2015126
Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.CacheStorage.delete 📋Chrome1/21/2015 Firefox9/22/2015244
api.CacheStorage.has 📋Chrome1/21/2015 Firefox9/22/2015244
api.CacheStorage.keys 📋Chrome1/21/2015 Firefox9/22/2015244
api.CacheStorage.open 📋Chrome1/21/2015 Firefox9/22/2015244
api.Document.execCommand.copy Chrome4/14/2015 Firefox9/22/2015161
api.Document.execCommand.cut Chrome4/14/2015 Firefox9/22/2015161
api.Document.fonts 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.FontFace 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.family 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.load 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.loaded 📋Chrome8/26/2014 Firefox9/22/2015392
api.FontFace.status 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.stretch 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.style 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.unicodeRange 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.variant Chrome5/20/2014 Firefox9/22/2015490
api.FontFace.weight 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet 📋Chrome5/20/2014 Firefox9/22/2015490
Chrome: Chrome does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.Chrome Android: Chrome Android does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.Edge: Edge does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.Quest Browser: Quest Browser does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.Opera: Opera does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.Opera Android: Opera Android does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.Samsung Internet: Samsung Internet does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.WebView Android: WebView Android does not expose the FontFaceSet interface directly, and is only available through Document.fonts or WorkerGlobalScope.fonts.
api.FontFaceSet.add 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.clear 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.delete 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.forEach Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.has Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.load 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.loading_event 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.loadingdone_event 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.loadingerror_event 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.ready 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.size Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSet.status 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSetLoadEvent 📋Chrome5/20/2014 Firefox9/22/2015490
api.FontFaceSetLoadEvent.fontfaces 📋Chrome5/20/2014 Firefox9/22/2015490
api.HTMLCanvasElement.getContext.webgl_context.options_failIfMajorPerformanceCaveat_parameter 📋Chrome2/20/2014 Firefox9/22/2015579
api.MediaStream.id 📋Chrome3/26/2013 Firefox9/22/2015910
api.MessageChannel 📋Chrome5/21/2009 Firefox9/22/20152315
Node.js: Available as a part of the worker_threads module.
api.MessageChannel.MessageChannel 📋Chrome5/21/2009 Firefox9/22/20152315
api.MessageChannel.port1 📋Chrome5/21/2009 Firefox9/22/20152315
api.MessageChannel.port2 📋Chrome5/21/2009 Firefox9/22/20152315
api.MessagePort 📋Chrome5/21/2009 Firefox9/22/20152315
Node.js: Available as a part of the worker_threads module.Node.js: Available as a part of the worker_threads module.Node.js: Inherits from Node EventEmitter instead of DOM EventTarget.
api.MessagePort.close 📋Chrome5/21/2009 Firefox9/22/20152315
api.MessagePort.message_event 📋Chrome5/21/2009 Firefox9/22/20152315
Node.js: Supports the event, but only via Node EventEmitter.
api.MessagePort.postMessage 📋Chrome5/21/2009 Firefox9/22/20152315
Deno: The message parameter does not support cloning Blob values.Deno: The message parameter does not support cloning Blob values.Deno: The transfer parameter does not accept ArrayBuffer items. Passing an ArrayBuffer results in an error being thrown.
api.MessagePort.start 📋Chrome5/21/2009 Firefox9/22/20152315
api.MessagePort.worker_support Chrome1/25/2010 Firefox9/22/20152066
api.MouseEvent.movementX 📋Chrome8/26/2014 Firefox9/22/2015392
api.MouseEvent.movementY 📋Chrome8/26/2014 Firefox9/22/2015392
api.Notification.worker_support Chrome4/14/2015 Firefox9/22/2015161
api.caches 📋Chrome1/21/2015 Firefox9/22/2015244
api.caches.worker_support Chrome1/21/2015 Firefox9/22/2015244
api.CSSGroupingRule 📋Firefox4/2/2013 Chrome9/1/2015882
Safari: The CSSGroupingRule interface itself is not present, but many of the methods are available on various interfaces such as the CSSMediaRule and CSSPageRule interfaces.Safari on iOS: The CSSGroupingRule interface itself is not present, but many of the methods are available on various interfaces such as the CSSMediaRule and CSSPageRule interfaces.WebView on iOS: The CSSGroupingRule interface itself is not present, but many of the methods are available on various interfaces such as the CSSMediaRule and CSSPageRule interfaces.
api.CSSGroupingRule.cssRules 📋Firefox4/2/2013 Chrome9/1/2015882
api.CSSGroupingRule.deleteRule 📋Firefox4/2/2013 Chrome9/1/2015882
api.CSSGroupingRule.insertRule 📋Firefox4/2/2013 Chrome9/1/2015882
api.PerformanceEntry.toJSON 📋Firefox1/13/2015 Chrome9/1/2015231
api.PerformanceResourceTiming.toJSON 📋Firefox1/13/2015 Chrome9/1/2015231
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter 📋Firefox6/25/2013 Chrome9/1/2015798
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.credential_parameter 📋Firefox6/25/2013 Chrome9/1/2015798
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.url_parameter Firefox6/25/2013 Chrome9/1/2015798
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.urls_parameter 📋Firefox3/31/2015 Chrome9/1/2015154
api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.username_parameter 📋Firefox8/6/2013 Chrome9/1/2015756
api.SVGFESpecularLightingElement.kernelUnitLengthX 📋Firefox6/17/2008 Chrome9/1/20152632
api.SVGFESpecularLightingElement.kernelUnitLengthY 📋Firefox6/17/2008 Chrome9/1/20152632

2015/8

API First Browser Date Last Browser Date Days Notes
api.AudioBufferSourceNode.detune 📋Chrome7/21/2015 Firefox8/11/201521
api.AudioContext.close 📋Chrome4/14/2015 Firefox8/11/2015119
api.AudioContext.resume 📋Chrome3/3/2015 Firefox8/11/2015161
api.AudioContext.suspend 📋Chrome3/3/2015 Firefox8/11/2015161
api.BaseAudioContext.state 📋Chrome3/3/2015 Firefox8/11/2015161
api.BaseAudioContext.statechange_event 📋Chrome3/3/2015 Firefox8/11/2015161
api.OfflineAudioContext.resume 📋Chrome3/3/2015 Firefox8/11/2015161
Firefox: The method exists but always rejects with NotSupportedError. See bug 1265406.Firefox for Android: The method exists but always rejects with NotSupportedError. See bug 1265406.

2015/7

API First Browser Date Last Browser Date Days Notes
api.Notification.data 📋Firefox12/1/2014 Chrome7/21/2015232
api.PerformanceTiming.toJSON 📋Firefox10/29/2013 Chrome7/21/2015630
api.Response.redirect_static 📋Firefox7/2/2015 Chrome7/21/201519
api.Headers 📋Chrome4/14/2015 Firefox7/2/201579
api.Headers.Headers 📋Chrome4/14/2015 Firefox7/2/201579
api.Headers.append 📋Chrome4/14/2015 Firefox7/2/201579
api.Headers.delete 📋Chrome4/14/2015 Firefox7/2/201579
api.Headers.get 📋Chrome4/14/2015 Firefox7/2/201579
Chrome: Before version 57, get() returns only the first value for the specified header.Chrome Android: Before version 57, get() returns only the first value for the specified header.Firefox: Before version 52, get() returns only the first value for the specified header.Firefox for Android: Before version 52, get() returns only the first value for the specified header.Quest Browser: Before version 5.0, get() returns only the first value for the specified header.Opera: Before version 44, get() returns only the first value for the specified header.Opera Android: Before version 43, get() returns only the first value for the specified header.Samsung Internet: Before version 7.0, get() returns only the first value for the specified header.WebView Android: Before version 57, get() returns only the first value for the specified header.
api.Headers.has 📋Chrome4/14/2015 Firefox7/2/201579
api.Headers.set 📋Chrome4/14/2015 Firefox7/2/201579
api.MouseEvent.offsetX 📋Chrome12/11/2008 Firefox7/2/20152394
api.MouseEvent.offsetY 📋Chrome12/11/2008 Firefox7/2/20152394
api.Request 📋Chrome4/14/2015 Firefox7/2/201579
Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.Request.Request 📋Chrome1/21/2015 Firefox7/2/2015162
Chrome: From Chrome 47, default values for the init argument's properties changed. mode defaults to same-origin (from no-cors). credentials defaults to include (from same-origin). redirect defaults to follow (from manual).Chrome Android: From Chrome Android 47, default values for the init argument's properties changed. mode defaults to same-origin (from no-cors). credentials defaults to include (from same-origin). redirect defaults to follow (from manual).Deno: Fetching with a "manual" redirect mode does not result in a "opaqueredirect" response, but a regular response.Quest Browser: From Quest Browser 5.0, default values for the init argument's properties changed. mode defaults to same-origin (from no-cors). credentials defaults to include (from same-origin). redirect defaults to follow (from manual).Samsung Internet: From Samsung Internet 5.0, default values for the init argument's properties changed. mode defaults to same-origin (from no-cors). credentials defaults to include (from same-origin). redirect defaults to follow (from manual).WebView Android: From WebView Android 47, default values for the init argument's properties changed. mode defaults to same-origin (from no-cors). credentials defaults to include (from same-origin). redirect defaults to follow (from manual).
api.Request.arrayBuffer 📋Chrome4/14/2015 Firefox7/2/201579
api.Request.blob 📋Chrome4/14/2015 Firefox7/2/201579
api.Request.bodyUsed 📋Chrome4/14/2015 Firefox7/2/201579
api.Request.clone 📋Chrome1/21/2015 Firefox7/2/2015162
api.Request.credentials 📋Chrome1/21/2015 Firefox7/2/2015162
api.Request.headers 📋Chrome1/21/2015 Firefox7/2/2015162
api.Request.json 📋Chrome4/14/2015 Firefox7/2/201579
api.Request.method 📋Chrome1/21/2015 Firefox7/2/2015162
api.Request.mode 📋Chrome1/21/2015 Firefox7/2/2015162
api.Request.referrer 📋Chrome1/21/2015 Firefox7/2/2015162
api.Request.text 📋Chrome4/14/2015 Firefox7/2/201579
api.Request.url 📋Chrome1/21/2015 Firefox7/2/2015162
Chrome: Fragment support added in Chrome 59.Chrome Android: Fragment support added in Chrome Android 59.Quest Browser: Fragment support added in Quest Browser 5.0.Opera: Fragment support added in Opera 46.Opera Android: Fragment support added in Opera 46.Samsung Internet: Fragment support added in Samsung Internet 7.0.WebView Android: Fragment support added in WebView Android 59.
api.Response 📋Chrome4/14/2015 Firefox7/2/201579
Chrome: Only available in service workers.Chrome Android: Only available in service workers.Opera: Only available in service workers.Opera Android: Only available in service workers.WebView Android: Only available in service workers.
api.Response.Response 📋Chrome1/21/2015 Firefox7/2/2015162
api.Response.arrayBuffer 📋Chrome4/14/2015 Firefox7/2/201579
api.Response.blob 📋Chrome4/14/2015 Firefox7/2/201579
api.Response.bodyUsed 📋Chrome4/14/2015 Firefox7/2/201579
api.Response.clone 📋Chrome1/21/2015 Firefox7/2/2015162
api.Response.error_static 📋Chrome5/19/2015 Firefox7/2/201544
api.Response.headers 📋Chrome1/21/2015 Firefox7/2/2015162
api.Response.json 📋Chrome4/14/2015 Firefox7/2/201579
api.Response.ok 📋Chrome4/14/2015 Firefox7/2/201579
api.Response.status 📋Chrome1/21/2015 Firefox7/2/2015162
api.Response.statusText 📋Chrome1/21/2015 Firefox7/2/2015162
api.Response.text 📋Chrome4/14/2015 Firefox7/2/201579
api.Response.type 📋Chrome1/21/2015 Firefox7/2/2015162
api.Response.url 📋Chrome1/21/2015 Firefox7/2/2015162
api.console.clear_static 📋Chrome2/21/2013 Firefox7/2/2015861
api.console.dirxml_static 📋Chrome5/21/2009 Firefox7/2/20152233
Node.js: Does not use Logger to log data.
api.fetch 📋Chrome4/14/2015 Firefox7/2/201579
Deno: Fetching with a "manual" redirect mode does not result in a "opaqueredirect" response, but a regular response.

2015/5

API First Browser Date Last Browser Date Days Notes
api.AnimationEvent 📋Firefox6/21/2011 Chrome5/19/20151428
api.AnimationEvent.AnimationEvent 📋Firefox8/6/2013 Chrome5/19/2015651
api.AnimationEvent.animationName 📋Firefox6/21/2011 Chrome5/19/20151428
api.AnimationEvent.elapsedTime 📋Firefox6/21/2011 Chrome5/19/20151428
api.AudioBuffer.copyFromChannel 📋Firefox2/4/2014 Chrome5/19/2015469
api.AudioBuffer.copyToChannel 📋Firefox2/4/2014 Chrome5/19/2015469
api.MouseEvent.buttons 📋Firefox8/28/2012 Chrome5/19/2015994
Firefox: Restrictions apply depending on OS.
api.PerformanceResourceTiming.connectEnd 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.connectStart 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.domainLookupEnd 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.domainLookupStart 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.fetchStart 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.initiatorType 📋Firefox1/13/2015 Chrome5/19/2015126
Node.js: Since v18.2.0, the value can be returned by toJSON(), but can not accessed via property getter.
api.PerformanceResourceTiming.redirectEnd 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.redirectStart 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.requestStart 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.responseEnd 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.responseStart 📋Firefox1/13/2015 Chrome5/19/2015126
api.PerformanceResourceTiming.secureConnectionStart 📋Firefox1/13/2015 Chrome5/19/2015126
api.RTCIceCandidate.toJSON 📋Firefox2/4/2014 Chrome5/19/2015469
api.RTCSessionDescription.toJSON 📋Firefox9/17/2013 Chrome5/19/2015609
api.HTMLImageElement.currentSrc 📋Chrome10/7/2014 Firefox5/12/2015217
api.HTMLImageElement.sizes 📋Chrome10/7/2014 Firefox5/12/2015217
api.HTMLImageElement.srcset 📋Chrome4/8/2014 Firefox5/12/2015399
api.HTMLMediaElement.encrypted_event 📋Chrome4/14/2015 Firefox5/12/201528
api.HTMLMediaElement.mediaKeys 📋Chrome4/14/2015 Firefox5/12/201528
api.HTMLMediaElement.setMediaKeys 📋Chrome4/14/2015 Firefox5/12/201528
api.HTMLPictureElement 📋Chrome10/7/2014 Firefox5/12/2015217
api.HTMLSourceElement.sizes 📋Chrome10/7/2014 Firefox5/12/2015217
Safari: The sizes attribute is supported since Safari 9.1.Safari on iOS: The sizes attribute is supported since Safari on iOS 9.1.WebView on iOS: The sizes attribute is supported since WebView on iOS 9.1.
api.HTMLSourceElement.srcset 📋Chrome10/7/2014 Firefox5/12/2015217
Safari: The srcset attribute is supported since Safari 9.1.Safari on iOS: The srcset attribute is supported since Safari on iOS 9.1.WebView on iOS: The srcset attribute is supported since WebView on iOS 9.1.
api.MediaEncryptedEvent 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaEncryptedEvent.MediaEncryptedEvent 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaEncryptedEvent.initData 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaEncryptedEvent.initDataType 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyMessageEvent 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyMessageEvent.MediaKeyMessageEvent 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyMessageEvent.message 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyMessageEvent.messageType 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.close 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.closed 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.expiration 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.generateRequest 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.keyStatuses 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.load 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.remove 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.sessionId 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySession.update 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyStatusMap 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyStatusMap.entries Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyStatusMap.keys Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyStatusMap.size 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeyStatusMap.values Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySystemAccess 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySystemAccess.createMediaKeys 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeySystemAccess.keySystem 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeys 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeys.createSession 📋Chrome4/14/2015 Firefox5/12/201528
api.MediaKeys.setServerCertificate 📋Chrome4/14/2015 Firefox5/12/201528
api.Navigator.requestMediaKeySystemAccess 📋Chrome4/14/2015 Firefox5/12/201528
Chrome: The spec requires that the passed supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.Chrome: The function does not exist in insecure contexts. This was not enforced until Chrome 58.Chrome Android: The spec requires that the passed supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.Chrome Android: The function does not exist in insecure contexts. This was not enforced until Chrome Android 58.Firefox: Starting in Firefox 55, if neither audioCapabilities nor videoCapabilities is specified in supportedConfigurations, a warning is output to the web console.Firefox: In addition, starting in Firefox 55, if in supportedConfigurations, either audioCapabilities's or videoCapabilities's contentType value doesn't specify a "codecs" substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.Firefox: In the future, if neither audioCapabilities nor videoCapabilities is specified in the supportedConfigurations, a NotSupported exception will be thrown.Firefox for Android: Starting in Firefox for Android 55, if neither audioCapabilities nor videoCapabilities is specified in supportedConfigurations, a warning is output to the web console.Firefox for Android: In addition, starting in Firefox for Android 55, if in supportedConfigurations, either audioCapabilities's or videoCapabilities's contentType value doesn't specify a "codecs" substring to define allowed codecs within the media wrapper, a warning is output to the web console. See note below table for example and correction.Firefox for Android: In the future, if neither audioCapabilities nor videoCapabilities is specified in the supportedConfigurations, a NotSupported exception will be thrown.Quest Browser: The spec requires that the passed supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.Quest Browser: The function does not exist in insecure contexts. This was not enforced until Quest Browser 5.0.Opera: The spec requires that the passed supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.Opera: The function does not exist in insecure contexts. This was not enforced until Opera 45.Opera Android: The spec requires that the passed supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.Opera Android: The function does not exist in insecure contexts. This was not enforced until Opera 45.Samsung Internet: The spec requires that the passed supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.Samsung Internet: The function does not exist in insecure contexts. This was not enforced until Samsung Internet 7.0.WebView Android: The spec requires that the passed supportedConfigurations option contain at least one of audioCapabilities or videoCapabilities, and that said parameters include a codec string.WebView Android: The function does not exist in insecure contexts. This was not enforced until version 58.
api.Performance.clearMarks 📋Chrome8/20/2013 Firefox5/12/2015630
api.Performance.clearMeasures 📋Chrome8/20/2013 Firefox5/12/2015630
api.Performance.mark 📋Chrome7/9/2013 Firefox5/12/2015672
api.Performance.measure 📋Chrome7/9/2013 Firefox5/12/2015672
api.PerformanceMark 📋Chrome7/9/2013 Firefox5/12/2015672
Node.js: Available as a part of the perf_hooks module.
api.PerformanceMeasure 📋Chrome2/21/2013 Firefox5/12/2015810
Node.js: Available as a part of the perf_hooks module.Node.js: Only available as an internal instance, but can be accessed via getting performance entries.
api.RTCPeerConnection.negotiationneeded_event 📋Chrome1/10/2013 Firefox5/12/2015852
Firefox: Although the onnegotiationneeded property is supported, the negotiationneeded event is never fired.Firefox for Android: Although the onnegotiationneeded property is supported, the negotiationneeded event is never fired.

2015/4

API First Browser Date Last Browser Date Days Notes
api.DOMTokenList.@@iterator Firefox2/24/2015 Chrome4/14/201549
api.Navigator.registerProtocolHandler.scheme_parameter_openpgp4fpr Firefox10/24/2006 Chrome4/14/20153094
api.OfflineAudioContext.startRendering.returns_promise Firefox3/31/2015 Chrome4/14/201514

2015/3

API First Browser Date Last Browser Date Days Notes
api.BaseAudioContext.createStereoPanner 📋Chrome3/3/2015 Firefox3/31/201528
api.IDBCursor.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBDatabase.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBFactory.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBIndex.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBKeyRange.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBObjectStore.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBOpenDBRequest.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBRequest.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBTransaction.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.IDBVersionChangeEvent.worker_support Chrome11/6/2012 Firefox3/31/2015875
api.StereoPannerNode 📋Chrome3/3/2015 Firefox3/31/201528
api.StereoPannerNode.pan 📋Chrome3/3/2015 Firefox3/31/201528
api.WebSocket.worker_support Chrome5/25/2010 Firefox3/31/20151771
api.indexedDB.worker_support Chrome1/10/2013 Firefox3/31/2015810
api.CSSKeyframesRule.appendRule 📋Firefox5/14/2013 Chrome3/3/2015658
api.ClipboardEvent 📋Firefox6/25/2013 Chrome3/3/2015616
Firefox: When pasting multiple files, only returns the first file. See bug 1954680.Firefox: Before Firefox 140, when pasting multiple files, and the first file was not acceptable, returned no file. See bug 1961170.Firefox for Android: When pasting multiple files, only returns the first file. See bug 1954680.Firefox for Android: Before Firefox for Android 140, when pasting multiple files, and the first file was not acceptable, returned no file. See bug 1961170.
api.ClipboardEvent.clipboardData 📋Firefox6/25/2013 Chrome3/3/2015616
api.Element.closest 📋Firefox1/13/2015 Chrome3/3/201549
api.IDBVersionChangeEvent.IDBVersionChangeEvent 📋Firefox10/29/2013 Chrome3/3/2015490
api.Navigator.registerProtocolHandler.scheme_parameter_ssh Firefox10/24/2006 Chrome3/3/20153052
api.SubtleCrypto.deriveBits 📋Firefox12/1/2014 Chrome3/3/201592
Deno: Not supported: ECDH.Edge: Not supported: ECDH.Edge: Not supported: HKDF, PBKDF2.Node.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.deriveKey 📋Firefox12/1/2014 Chrome3/3/201592
Edge: Not supported: ECDH.Edge: Not supported: HKDF, PBKDF2.Node.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_aes 📋Firefox12/1/2014 Chrome3/3/201592
api.SubtleCrypto.deriveKey.derivedKeyAlgorithm_option_hmac 📋Firefox12/1/2014 Chrome3/3/201592
api.SubtleCrypto.digest 📋Firefox12/1/2014 Chrome3/3/201592
Chrome: Before version 41, Chrome expected the algorithm parameter to be an object.Chrome Android: Before version 41, Chrome Android expected the algorithm parameter to be an object.Edge: Not supported: SHA-1.Internet Explorer: Returns CryptoOperation instead of PromiseOpera: Before version 28, Opera expected the algorithm parameter to be an object.Opera Android: Before version 28, Opera Android expected the algorithm parameter to be an object.Samsung Internet: Before version 4.0, Samsung Internet expected the algorithm parameter to be an object.WebView Android: Before version 41, WebView Android expected the algorithm parameter to be an object.
api.Window.scroll.options_left_parameter Firefox2/24/2015 Chrome3/3/20157
api.Window.scroll.options_top_parameter Firefox2/24/2015 Chrome3/3/20157
api.Window.scrollBy.options_left_parameter Firefox2/24/2015 Chrome3/3/20157
api.Window.scrollBy.options_top_parameter Firefox2/24/2015 Chrome3/3/20157
api.Window.scrollTo.options_left_parameter Firefox2/24/2015 Chrome3/3/20157
api.Window.scrollTo.options_top_parameter Firefox2/24/2015 Chrome3/3/20157

2015/2

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.resetTransform 📋Chrome11/12/2013 Firefox2/24/2015469
api.RTCPeerConnection.signalingstatechange_event 📋Chrome7/9/2013 Firefox2/24/2015595
Firefox: Although the onsignalingstatechange property is supported, the signalingstatechange event is not fired as an Event object. See bug 1075133.Firefox for Android: Although the onsignalingstatechange property is supported, the signalingstatechange event is not fired as an Event object. See bug 1075133.
api.TextDecoder.fatal 📋Chrome10/7/2014 Firefox2/24/2015140

2015/1

API First Browser Date Last Browser Date Days Notes
api.Performance.getEntries 📋Chrome7/9/2013 Firefox1/13/2015553
api.Performance.getEntriesByName 📋Chrome7/9/2013 Firefox1/13/2015553
api.Performance.getEntriesByType 📋Chrome7/9/2013 Firefox1/13/2015553
api.PerformanceEntry.duration 📋Chrome7/9/2013 Firefox1/13/2015553
api.PerformanceEntry.entryType 📋Chrome7/9/2013 Firefox1/13/2015553
api.PerformanceEntry.name 📋Chrome7/9/2013 Firefox1/13/2015553
api.PerformanceEntry.startTime 📋Chrome7/9/2013 Firefox1/13/2015553
api.PerformanceResourceTiming 📋Chrome8/20/2013 Firefox1/13/2015511
Node.js: Available as a part of the perf_hooks module.Node.js: Available as a part of the perf_hooks module.
api.SVGFEFloodElement.height 📋Chrome5/25/2010 Firefox1/13/20151694
api.SVGFEFloodElement.result 📋Chrome5/25/2010 Firefox1/13/20151694
api.SVGFEFloodElement.width 📋Chrome5/25/2010 Firefox1/13/20151694
api.SVGFEFloodElement.x 📋Chrome5/25/2010 Firefox1/13/20151694
api.SVGFEFloodElement.y 📋Chrome5/25/2010 Firefox1/13/20151694

2014/12

API First Browser Date Last Browser Date Days Notes
api.Crypto.subtle 📋Chrome8/26/2014 Firefox12/1/201497
api.CryptoKey 📋Chrome8/26/2014 Firefox12/1/201497
Node.js: Available as a part of the crypto module.
api.CryptoKey.algorithm 📋Chrome8/26/2014 Firefox12/1/201497
api.CryptoKey.extractable 📋Chrome8/26/2014 Firefox12/1/201497
Deno: The only supported value for this property is true.
api.CryptoKey.type 📋Chrome8/26/2014 Firefox12/1/201497
api.CryptoKey.usages 📋Chrome8/26/2014 Firefox12/1/201497
api.Element.matches 📋Chrome2/20/2014 Firefox12/1/2014284
Firefox: Before Firefox 4, invalid selector strings caused false to be returned instead of throwing an exception.Firefox: See bug 1119718 for removal.Firefox for Android: See bug 1119718 for removal.
api.MediaStream.getTracks 📋Chrome10/7/2014 Firefox12/1/201455
api.MediaStreamTrack.stop 📋Chrome1/14/2014 Firefox12/1/2014321
api.NamedNodeMap 📋Chrome12/11/2008 Firefox12/1/20142181
api.SubtleCrypto 📋Chrome8/26/2014 Firefox12/1/201497
Node.js: Available as a part of the crypto module.
api.SubtleCrypto.decrypt 📋Chrome8/26/2014 Firefox12/1/201497
Deno: Not supported: AES-CTR, AES-GCM.Deno: Not supported: AES-CTR, AES-CBC, AES-GCM.Edge: Not supported: AES-CTR.Internet Explorer: Returns CryptoOperation instead of Promise
api.SubtleCrypto.encrypt 📋Chrome8/26/2014 Firefox12/1/201497
Deno: Not supported: AES-CTR, AES-GCM.Deno: Not supported: AES-CTR, AES-CBC, AES-GCM.Edge: Not supported: AES-CTR.Internet Explorer: Returns CryptoOperation instead of Promise
api.SubtleCrypto.exportKey 📋Chrome8/26/2014 Firefox12/1/201497
Deno: Not supported: ECDSA, ECDH.Deno: Not supported: ECDSA, ECDH, AES-CTR, AES-CBC, AES-GCM, AES-KW.Edge: Not supported: RSA-PSS, ECDSA, ECDH.Edge: Not supported: AES-CTR.Internet Explorer: Returns KeyOperation instead of PromiseNode.js: Supports: NODE-DSANode.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.generateKey 📋Chrome8/26/2014 Firefox12/1/201497
Deno: Not supported: ECDSA P-521, ECDH P-521.Deno: Not supported: RSA-OAEP, ECDSA P-521, ECDH, AES-CTR, AES-CBC, AES-GCM, AES-KW.Edge: Not supported: RSA-PSS, ECDSA, ECDH.Edge: Not supported: AES-CTR.Internet Explorer: Returns KeyOperation instead of PromiseNode.js: Supports: NODE-DSANode.js: Supports: NODE-DH
api.SubtleCrypto.importKey 📋Chrome8/26/2014 Firefox12/1/201497
Deno: Not supported: ECDH P-521.Deno: Not supported: ECDH.Deno: Not supported: AES-CTR, AES-CBC, AES-GCM, AES-KW.Edge: Not supported: RSA-PSS, ECDSA, ECDH.Edge: Not supported: AES-CTR, HKDF, PBKDF2.Internet Explorer: Returns KeyOperation instead of PromiseNode.js: Supports: NODE-DSANode.js: Supports: NODE-DHNode.js: Supports: NODE-SCRYPT
api.SubtleCrypto.importKey.ECDH 📋Chrome8/26/2014 Firefox12/1/201497
Deno: P-384 supported. Not supported: P-256, P-521.
api.SubtleCrypto.importKey.ECDSA 📋Chrome8/26/2014 Firefox12/1/201497
Deno: P-384 supported. Not supported: P-256, P-521.
api.SubtleCrypto.sign 📋Chrome8/26/2014 Firefox12/1/201497
Edge: Not supported: RSA-PSS, ECDSA.Internet Explorer: Returns CryptoOperation instead of PromiseNode.js: Supports: NODE-DSA
api.SubtleCrypto.unwrapKey 📋Chrome8/26/2014 Firefox12/1/201497
Edge: Not supported: AES-CTR.Internet Explorer: Returns KeyOperation instead of PromiseNode.js: Supports: NODE-DSANode.js: Supports: NODE-DH
api.SubtleCrypto.verify 📋Chrome8/26/2014 Firefox12/1/201497
Deno: Not supported: ECDSA, HMAC.Edge: Not supported: RSA-PSS, ECDSA.Internet Explorer: Returns CryptoOperation instead of PromiseNode.js: Supports: NODE-DSA
api.SubtleCrypto.wrapKey 📋Chrome8/26/2014 Firefox12/1/201497
Edge: Not supported: AES-CTR.Internet Explorer: Returns KeyOperation instead of Promise
api.console.table_static 📋Chrome5/21/2013 Firefox12/1/2014559
api.performance.worker_support Chrome10/1/2013 Firefox12/1/2014426
Node.js: Available as a part of the perf_hooks module.

2014/11

API First Browser Date Last Browser Date Days Notes
api.Navigator.sendBeacon 📋Firefox7/22/2014 Chrome11/18/2014119
Chrome: Starting in Chrome 59, this method cannot send a Blob whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Chrome Android: Starting in Chrome 59, this method cannot send a Blob whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Quest Browser: Starting in Chrome 59, this method cannot send a Blob whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Opera: Starting in Opera 46, this method cannot send a Blob whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Opera Android: Starting in Chrome 59, this method cannot send a Blob whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.Samsung Internet: Starting in Chrome 59, this method cannot send a Blob whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.WebView Android: Starting in Chrome 59, this method cannot send a Blob whose type is not CORS safelisted. This is a temporary change until a mitigation can be found for the security issues that this creates. For more information, see bug 40087600.

2014/10

API First Browser Date Last Browser Date Days Notes
api.AudioTrack 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrack.enabled 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrack.id 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrack.kind 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrack.label 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrack.language 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrackList 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrackList.addtrack_event 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrackList.change_event 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrackList.getTrackById 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrackList.length 📋Chrome8/26/2014 Firefox10/14/201449
api.AudioTrackList.removetrack_event 📋Chrome8/26/2014 Firefox10/14/201449
api.HTMLFormControlsCollection.namedItem 📋Chrome12/11/2008 Firefox10/14/20142133
Firefox: Returned a NodeList instead of a RadioNodeList.Firefox for Android: Returned a NodeList instead of a RadioNodeList.
api.HTMLMediaElement.audioTracks 📋Chrome8/26/2014 Firefox10/14/201449
api.HTMLMediaElement.videoTracks 📋Chrome8/26/2014 Firefox10/14/201449
api.RadioNodeList 📋Chrome7/31/2012 Firefox10/14/2014805
api.RadioNodeList.value 📋Chrome7/31/2012 Firefox10/14/2014805
api.VideoTrack 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrack.id 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrack.kind 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrack.label 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrack.language 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrack.selected 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrackList 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrackList.addtrack_event 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrackList.change_event 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrackList.getTrackById 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrackList.length 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrackList.removetrack_event 📋Chrome8/26/2014 Firefox10/14/201449
api.VideoTrackList.selectedIndex 📋Chrome8/26/2014 Firefox10/14/201449
api.File.File 📋Firefox3/18/2014 Chrome10/7/2014203
api.HTMLIFrameElement.allowFullscreen 📋Firefox6/25/2013 Chrome10/7/2014469
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.
api.SVGStyleElement.sheet 📋Firefox11/29/2005 Chrome10/7/20143234
api.TextDecoder 📋Firefox2/19/2013 Chrome10/7/2014595
Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.Node.js: Available as a part of the util module.
api.TextDecoder.TextDecoder 📋Firefox2/19/2013 Chrome10/7/2014595
Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.
api.TextDecoder.decode 📋Firefox2/19/2013 Chrome10/7/2014595
Deno: Before Deno 1.11, passing option.stream is not supported and results in an error being thrown.Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.
api.TextDecoder.encoding 📋Firefox2/19/2013 Chrome10/7/2014595
Firefox: Implemented a slightly different version of the spec.Firefox for Android: Implemented a slightly different version of the spec.
api.TextDecoder.worker_support Firefox4/2/2013 Chrome10/7/2014553
api.TextEncoder 📋Firefox1/8/2013 Chrome10/7/2014637
Node.js: Available as a part of the util module.
api.TextEncoder.TextEncoder 📋Firefox1/8/2013 Chrome10/7/2014637
api.TextEncoder.encode 📋Firefox1/8/2013 Chrome10/7/2014637
api.TextEncoder.encoding 📋Firefox1/8/2013 Chrome10/7/2014637
api.TextEncoder.worker_support Firefox4/2/2013 Chrome10/7/2014553
api.WorkerLocation.origin 📋Firefox4/29/2014 Chrome10/7/2014161

2014/9

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.drawFocusIfNeeded 📋Chrome8/26/2014 Firefox9/2/20147
api.HTMLAllCollection 📋Chrome5/25/2010 Firefox9/2/20141561
api.HTMLAllCollection.item 📋Chrome5/25/2010 Firefox9/2/20141561
api.HTMLAllCollection.length 📋Chrome9/2/2010 Firefox9/2/20141461
api.HTMLAllCollection.namedItem 📋Chrome5/25/2010 Firefox9/2/20141561
api.Navigator.languages 📋Chrome8/26/2014 Firefox9/2/20147
Chrome: Before Chrome 65, navigator.languages[0] is not guaranteed to equal navigator.language.Chrome Android: Before Chrome Android 65, navigator.languages[0] is not guaranteed to equal navigator.language.Firefox: In Firefox, the navigator.languages property's value is taken from the intl.accept_languages preference.Firefox for Android: In Firefox for Android, the navigator.languages property's value is taken from the intl.accept_languages preference.Internet Explorer: Closest available (non-standard) properties are userLanguage and browserLanguage.Quest Browser: Before Quest Browser 5.0, navigator.languages[0] is not guaranteed to equal navigator.language.WebView Android: Before version 65, navigator.languages[0] is not guaranteed to equal navigator.language.
api.Window.languagechange_event 📋Chrome8/26/2014 Firefox9/2/20147
api.WorkerNavigator.languages 📋Chrome8/26/2014 Firefox9/2/20147
Chrome: Before Chrome 65, navigator.languages[0] is not guaranteed to equal navigator.language.Chrome Android: Before Chrome Android 65, navigator.languages[0] is not guaranteed to equal navigator.language.Firefox: In Firefox, the navigator.languages property's value is taken from the intl.accept_languages preference.Firefox for Android: In Firefox for Android, the navigator.languages property's value is taken from the intl.accept_languages preference.Internet Explorer: Closest available (non-standard) properties are userLanguage and browserLanguage.Quest Browser: Before Quest Browser 5.0, navigator.languages[0] is not guaranteed to equal navigator.language.WebView Android: Before version 65, navigator.languages[0] is not guaranteed to equal navigator.language.
api.XMLHttpRequest.responseURL 📋Chrome8/26/2014 Firefox9/2/20147

2014/8

API First Browser Date Last Browser Date Days Notes
api.crypto 📋Firefox11/9/2004 Chrome8/26/20143577
Node.js: Available as a part of the crypto module.

2014/7

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.clip.path_parameter Chrome7/16/2014 Firefox7/22/20146
api.CanvasRenderingContext2D.fill.path_parameter Chrome7/16/2014 Firefox7/22/20146
api.CanvasRenderingContext2D.isPointInPath.path_parameter Chrome7/16/2014 Firefox7/22/20146
api.CanvasRenderingContext2D.isPointInStroke.path_parameter Chrome7/16/2014 Firefox7/22/20146
api.CanvasRenderingContext2D.stroke.path_parameter Chrome7/16/2014 Firefox7/22/20146
api.ErrorEvent.colno 📋Chrome10/1/2013 Firefox7/22/2014294
api.ErrorEvent.error 📋Chrome10/1/2013 Firefox7/22/2014294
api.HTMLLinkElement.sizes 📋Chrome10/25/2011 Firefox7/22/20141001
Chrome: Before Chrome 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Chrome Android: Before Chrome Android 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Quest Browser: Before Quest Browser 5.0, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Opera: Before Opera 37, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Opera Android: Before Opera Android 37, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Samsung Internet: Before Samsung Internet 5.0, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.WebView Android: Before WebView 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.
api.HTMLMediaElement.addTextTrack 📋Chrome11/6/2012 Firefox7/22/2014623
api.HTMLMediaElement.textTracks 📋Chrome11/6/2012 Firefox7/22/2014623
api.HTMLTrackElement 📋Chrome11/6/2012 Firefox7/22/2014623
Firefox: Before Firefox 50, text tracks would only load if the <track> element is in a document.Firefox for Android: Before Firefox for Android 50, text tracks would only load if the <track> element is in a document.
api.HTMLTrackElement.default 📋Chrome11/6/2012 Firefox7/22/2014623
api.HTMLTrackElement.kind 📋Chrome11/6/2012 Firefox7/22/2014623
api.HTMLTrackElement.label 📋Chrome11/6/2012 Firefox7/22/2014623
api.HTMLTrackElement.readyState 📋Chrome11/6/2012 Firefox7/22/2014623
api.HTMLTrackElement.src 📋Chrome11/6/2012 Firefox7/22/2014623
Firefox: Before Firefox 50, setting the src property did not work properly.Firefox for Android: Before Firefox for Android 50, setting the src property did not work properly.
api.HTMLTrackElement.srclang 📋Chrome11/6/2012 Firefox7/22/2014623
api.HTMLTrackElement.track 📋Chrome11/6/2012 Firefox7/22/2014623
api.KeyboardEvent.KeyboardEvent 📋Chrome3/26/2013 Firefox7/22/2014483
api.Path2D 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.Path2D 📋Chrome7/16/2014 Firefox7/22/20146
Edge: Before Edge 79, the constructor for Path2D objects does not support invocation with a string consisting of SVG path data.
api.Path2D.arc 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.arcTo 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.bezierCurveTo 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.closePath 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.lineTo 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.moveTo 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.quadraticCurveTo 📋Chrome7/16/2014 Firefox7/22/20146
api.Path2D.rect 📋Chrome7/16/2014 Firefox7/22/20146
api.TextTrack 📋Chrome11/6/2012 Firefox7/22/2014623
Firefox: Firefox versions before Firefox 50 didn't display captions when playing media without one or more video tracks being played.
api.TextTrack.activeCues 📋Chrome11/6/2012 Firefox7/22/2014623
Firefox: Starting in Firefox 69, cues are no longer incorrectly loaded when the TextTrack's mode is disabled; if that's the case, the returned list is empty.
api.TextTrack.addCue 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrack.cuechange_event 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrack.cues 📋Chrome11/6/2012 Firefox7/22/2014623
Firefox: Starting in Firefox 69, cues are no longer incorrectly loaded when the TextTrack's mode is disabled; if that's the case, the returned list is empty.
api.TextTrack.id 📋Chrome2/20/2014 Firefox7/22/2014152
api.TextTrack.kind 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrack.label 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrack.language 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrack.mode 📋Chrome11/6/2012 Firefox7/22/2014623
Firefox: Before Firefox 52, using JavaScript to change the mode of a text track that's part of a media element would send one change event to the element's textTracks TextTrackList for each change, even if multiple changes are made in a single pass through the Firefox event loop. Starting in Firefox 52, these changes are reflected by a single event.
api.TextTrack.removeCue 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue.endTime 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue.enter_event 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue.exit_event 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue.id 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue.pauseOnExit 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue.startTime 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCue.track 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCueList 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCueList.getCueById 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackCueList.length 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackList 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackList.addtrack_event 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackList.change_event 📋Chrome2/20/2014 Firefox7/22/2014152
api.TextTrackList.getTrackById 📋Chrome2/20/2014 Firefox7/22/2014152
api.TextTrackList.length 📋Chrome11/6/2012 Firefox7/22/2014623
api.TextTrackList.removetrack_event 📋Chrome2/20/2014 Firefox7/22/2014152
api.VTTCue 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.VTTCue 📋Chrome2/20/2014 Firefox7/22/2014152
api.VTTCue.align 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.getCueAsHTML 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.line 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.position 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.size 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.snapToLines 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.text 📋Chrome11/6/2012 Firefox7/22/2014623
api.VTTCue.vertical 📋Chrome11/6/2012 Firefox7/22/2014623
api.Document.contentType 📋Firefox11/9/2004 Chrome7/16/20143536
api.Document.dir 📋Firefox11/9/2004 Chrome7/16/20143536
Chrome: Only supported for HTMLDocument, not all Document objects.Chrome Android: Only supported for HTMLDocument, not all Document objects.Firefox: Incorrect behavior before Firefox 23.Firefox for Android: Incorrect behavior before Firefox for Android 23.Opera: Only supported for HTMLDocument, not all Document objects.Opera Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.Samsung Internet: Only supported for HTMLDocument, not all Document objects.WebView Android: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.DocumentFragment.getElementById 📋Firefox3/18/2014 Chrome7/16/2014120
api.ImageData.ImageData 📋Firefox4/29/2014 Chrome7/16/201478
api.ImageData.worker_support Firefox10/29/2013 Chrome7/16/2014260
api.WEBGL_draw_buffers 📋Firefox3/18/2014 Chrome7/16/2014120
api.WEBGL_draw_buffers.drawBuffersWEBGL 📋Firefox3/18/2014 Chrome7/16/2014120

2014/6

API First Browser Date Last Browser Date Days Notes
api.AnalyserNode.getFloatTimeDomainData 📋Chrome5/20/2014 Firefox6/10/201421
api.HTMLCanvasElement.getContext.2d_context.options_alpha_parameter 📋Chrome1/14/2014 Firefox6/10/2014147
api.HTMLCanvasElement.getContext.webgl_context.options_alpha_parameter 📋Chrome1/14/2014 Firefox6/10/2014147
api.OES_texture_half_float_linear 📋Chrome8/20/2013 Firefox6/10/2014294
api.SVGFEDropShadowElement 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.dx 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.dy 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.height 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.in1 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.result 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.setStdDeviation 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.stdDeviationX 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.stdDeviationY 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.width 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.x 📋Chrome8/2/2011 Firefox6/10/20141043
api.SVGFEDropShadowElement.y 📋Chrome8/2/2011 Firefox6/10/20141043
api.console.count_static 📋Chrome5/21/2009 Firefox6/10/20141846

2014/5

API First Browser Date Last Browser Date Days Notes
api.AudioContext 📋Firefox10/29/2013 Chrome5/20/2014203
api.AudioContext.AudioContext 📋Firefox10/29/2013 Chrome5/20/2014203
Chrome: Before Chrome 66, each tab is limited to 6 audio contexts in Chrome; attempting to create more will throw a DOMException. For details see Per-tab audio context limitation in Chrome.Chrome: If latencyHint isn't valid, Chrome throws a TypeError exception. See Non-standard exceptions in Chrome for details.Chrome Android: Before Chrome Android 66, each tab is limited to 6 audio contexts in Chrome Android; attempting to create more will throw a DOMException. For details see Per-tab audio context limitation in Chrome Android.Chrome Android: If latencyHint isn't valid, Chrome Android throws a TypeError exception. See Non-standard exceptions in Chrome Android for details.Quest Browser: Before Quest Browser 5.0, each tab is limited to 6 audio contexts in Quest Browser; attempting to create more will throw a DOMException. For details see Per-tab audio context limitation in Quest Browser.Quest Browser: If latencyHint isn't valid, Quest Browser throws a TypeError exception. See Non-standard exceptions in Quest Browser for details.Opera: Before Opera 53, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a DOMException. For details see Per-tab audio context limitation in Chrome.Opera: If latencyHint isn't valid, Opera throws a TypeError exception. See Non-standard exceptions in Chrome for details.Opera Android: Before Opera Android 47, each tab is limited to 6 audio contexts in Opera; attempting to create more will throw a DOMException. For details see Per-tab audio context limitation in Chrome.Opera Android: If latencyHint isn't valid, Opera throws a TypeError exception. See Non-standard exceptions in Chrome for details.Safari: New audio contexts are suspended until the resume() method is called via user action, such as the click event.Safari on iOS: New audio contexts are suspended until the resume() method is called via user action, such as the click event.Samsung Internet: Before Samsung Internet 9.0, each tab is limited to 6 audio contexts in Samsung Internet; attempting to create more will throw a DOMException. For details see Per-tab audio context limitation in Chrome.Samsung Internet: If latencyHint isn't valid, Samsung Internet throws a TypeError exception. See Non-standard exceptions in Chrome for details.WebView Android: Before WebView Android 66, each tab is limited to 6 audio contexts in WebView Android; attempting to create more will throw a DOMException. For details see Per-tab audio context limitation in WebView Android.WebView Android: If latencyHint isn't valid, WebView Android throws a TypeError exception. See Non-standard exceptions in WebView Android for details.WebView on iOS: New audio contexts are suspended until the resume() method is called via user action, such as the click event.
api.GamepadEvent.GamepadEvent 📋Firefox4/29/2014 Chrome5/20/201421
api.HTMLSelectElement.add.index_before_parameter Firefox11/8/2011 Chrome5/20/2014924
api.Navigator.getGamepads 📋Firefox4/29/2014 Chrome5/20/201421
api.OfflineAudioContext 📋Firefox10/29/2013 Chrome5/20/2014203
api.OfflineAudioContext.OfflineAudioContext 📋Firefox10/29/2013 Chrome5/20/2014203
api.SVGLengthList.length 📋Firefox6/21/2011 Chrome5/20/20141064
api.SVGNumberList.length 📋Firefox6/21/2011 Chrome5/20/20141064
api.SVGPointList.length 📋Firefox6/21/2011 Chrome5/20/20141064
api.SVGStringList.length 📋Firefox4/24/2012 Chrome5/20/2014756
api.SVGTransformList.length 📋Firefox12/20/2011 Chrome5/20/2014882

2014/4

API First Browser Date Last Browser Date Days Notes
api.Gamepad 📋Chrome7/31/2012 Firefox4/29/2014637
api.Gamepad.axes 📋Chrome7/31/2012 Firefox4/29/2014637
api.Gamepad.buttons 📋Chrome7/31/2012 Firefox4/29/2014637
api.Gamepad.connected 📋Chrome2/21/2013 Firefox4/29/2014432
api.Gamepad.id 📋Chrome7/31/2012 Firefox4/29/2014637
api.Gamepad.index 📋Chrome7/31/2012 Firefox4/29/2014637
api.Gamepad.mapping 📋Chrome7/31/2012 Firefox4/29/2014637
api.Gamepad.timestamp 📋Chrome7/31/2012 Firefox4/29/2014637
api.GamepadButton 📋Chrome7/31/2012 Firefox4/29/2014637
api.GamepadButton.pressed 📋Chrome7/31/2012 Firefox4/29/2014637
api.GamepadButton.value 📋Chrome7/31/2012 Firefox4/29/2014637
api.GamepadEvent 📋Chrome7/31/2012 Firefox4/29/2014637
api.GamepadEvent.gamepad 📋Chrome7/31/2012 Firefox4/29/2014637
api.OES_texture_half_float 📋Chrome5/21/2013 Firefox4/29/2014343
api.SVGFEComponentTransferElement.height 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEComponentTransferElement.result 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEComponentTransferElement.width 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEComponentTransferElement.x 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEComponentTransferElement.y 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEGaussianBlurElement.height 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEGaussianBlurElement.result 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEGaussianBlurElement.width 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEGaussianBlurElement.x 📋Chrome5/25/2010 Firefox4/29/20141435
api.SVGFEGaussianBlurElement.y 📋Chrome5/25/2010 Firefox4/29/20141435
api.SharedWorker 📋Chrome5/25/2010 Firefox4/29/20141435
api.SharedWorker.SharedWorker 📋Chrome5/25/2010 Firefox4/29/20141435
api.SharedWorker.error_event 📋Chrome5/25/2010 Firefox4/29/20141435
api.SharedWorker.port 📋Chrome5/25/2010 Firefox4/29/20141435
api.SharedWorkerGlobalScope 📋Chrome1/25/2010 Firefox4/29/20141555
api.SharedWorkerGlobalScope.close 📋Chrome1/25/2010 Firefox4/29/20141555
api.SharedWorkerGlobalScope.connect_event 📋Chrome1/25/2010 Firefox4/29/20141555
Firefox: Before version 65 the data property of the event object was null; it is now initialized to an empty string, as per spec.Firefox for Android: Before version 65 the data property of the event object was null; it is now initialized to an empty string, as per spec.
api.SharedWorkerGlobalScope.name 📋Chrome1/25/2010 Firefox4/29/20141555
api.ValidityState.badInput 📋Chrome2/21/2013 Firefox4/29/2014432
api.console.worker_support Chrome11/12/2013 Firefox4/29/2014168
api.Document.hasFocus 📋Firefox6/17/2008 Chrome4/8/20142121
Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.HTMLLinkElement.crossOrigin 📋Firefox1/8/2013 Chrome4/8/2014455
api.XMLDocument 📋Firefox11/9/2004 Chrome4/8/20143437
Chrome: Implemented as an alias for Document.Chrome Android: Implemented as an alias for Document.Opera: Implemented as an alias for Document.Opera Android: Implemented as an alias for Document.Safari: Implemented as an alias for Document.Safari on iOS: Implemented as an alias for Document.Samsung Internet: Implemented as an alias for Document.WebView Android: Implemented as an alias for Document.WebView on iOS: Implemented as an alias for Document.

2014/3

API First Browser Date Last Browser Date Days Notes
api.console.assert_static 📋Chrome5/21/2009 Firefox3/18/20141762
Node.js: Throws error when assertion fails.

2014/2

API First Browser Date Last Browser Date Days Notes
api.Document.hidden 📋Firefox1/8/2013 Chrome2/20/2014408
Firefox: Since Firefox 56 it also returns true on macOS when the window is completely hidden by another non-translucent application.Firefox for Android: Since Firefox for Android 56 it also returns true on macOS when the window is completely hidden by another non-translucent application.
api.Document.visibilityState 📋Firefox1/8/2013 Chrome2/20/2014408
api.HTMLCanvasElement.getContext.webgl_context Firefox9/17/2013 Chrome2/20/2014156
api.HTMLHRElement.color 📋Firefox11/9/2004 Chrome2/20/20143390
api.HTMLMediaElement.crossOrigin 📋Firefox6/25/2013 Chrome2/20/2014240
api.Notification.body 📋Firefox12/10/2013 Chrome2/20/201472
api.Notification.icon 📋Firefox12/10/2013 Chrome2/20/201472
Safari: The property can be set, but has no effect.Safari on iOS: The property can be set, but has no effect.
api.Notification.lang 📋Firefox12/10/2013 Chrome2/20/201472
api.Notification.title 📋Firefox12/10/2013 Chrome2/20/201472
api.CanvasRenderingContext2D.getLineDash 📋Chrome11/6/2012 Firefox2/4/2014455
api.CanvasRenderingContext2D.lineDashOffset 📋Chrome11/6/2012 Firefox2/4/2014455
api.CanvasRenderingContext2D.setLineDash 📋Chrome11/6/2012 Firefox2/4/2014455
api.ErrorEvent 📋Chrome3/8/2011 Firefox2/4/20141064
api.ErrorEvent.ErrorEvent 📋Chrome12/13/2011 Firefox2/4/2014784
api.ErrorEvent.filename 📋Chrome3/8/2011 Firefox2/4/20141064
api.ErrorEvent.lineno 📋Chrome3/8/2011 Firefox2/4/20141064
api.ErrorEvent.message 📋Chrome3/8/2011 Firefox2/4/20141064
api.HTMLInputElement.setRangeText 📋Chrome1/10/2013 Firefox2/4/2014390
api.HTMLTextAreaElement.setRangeText 📋Chrome1/10/2013 Firefox2/4/2014390
api.RTCPeerConnection.getStats 📋Chrome1/10/2013 Firefox2/4/2014390
api.TrackEvent 📋Chrome11/6/2012 Firefox2/4/2014455
api.TrackEvent.TrackEvent 📋Chrome11/6/2012 Firefox2/4/2014455
api.TrackEvent.track 📋Chrome11/6/2012 Firefox2/4/2014455

2014/1

API First Browser Date Last Browser Date Days Notes
api.HTMLAnchorElement.password 📋Firefox12/10/2013 Chrome1/14/201435
api.HTMLAnchorElement.username 📋Firefox12/10/2013 Chrome1/14/201435
api.HTMLAreaElement.origin 📋Firefox12/10/2013 Chrome1/14/201435
Firefox: Before Firefox 49, results for URL using the blob scheme incorrectly returned null.Firefox for Android: Before Firefox for Android 49, results for URL using the blob scheme incorrectly returned null.
api.HTMLAreaElement.password 📋Firefox12/10/2013 Chrome1/14/201435
api.HTMLAreaElement.toString 📋Firefox6/25/2013 Chrome1/14/2014203
api.HTMLAreaElement.username 📋Firefox12/10/2013 Chrome1/14/201435
api.Notification.permission_static 📋Firefox6/25/2013 Chrome1/14/2014203
Safari on iOS: The parent Notification interface is undefined unless the page is a web app saved to the home screen. The app's manifest must have a non-default display value.
api.URL 📋Firefox2/19/2013 Chrome1/14/2014329
Firefox: Before version 57, Firefox had a bug whereby single quotes contained in URLs are escaped when accessed via URL APIs (see bug 1386683).Firefox for Android: Before version 57, Firefox for Android had a bug whereby single quotes contained in URLs are escaped when accessed via URL APIs (see bug 1386683).Node.js: Available as a part of the url module.
api.URL.hash 📋Firefox6/25/2013 Chrome1/14/2014203
api.URL.host 📋Firefox6/25/2013 Chrome1/14/2014203
api.URL.hostname 📋Firefox6/25/2013 Chrome1/14/2014203
api.URL.href 📋Firefox6/25/2013 Chrome1/14/2014203
api.URL.origin 📋Firefox12/10/2013 Chrome1/14/201435
Firefox: Before Firefox 49, Results for URL using the blob scheme incorrectly returned null.Firefox for Android: Before Firefox for Android 49, Results for URL using the blob scheme incorrectly returned null.
api.URL.password 📋Firefox12/10/2013 Chrome1/14/201435
api.URL.pathname 📋Firefox6/25/2013 Chrome1/14/2014203
Firefox: Before Firefox 53, pathname and search returned wrong values for custom protocols. Given protocol:host/x?a=true&b=false, pathname would return "/x?a=true&b=false" and search would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.Firefox for Android: Before Firefox for Android 53, pathname and search returned wrong values for custom protocols. Given protocol:host/x?a=true&b=false, pathname would return "/x?a=true&b=false" and search would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.
api.URL.port 📋Firefox6/25/2013 Chrome1/14/2014203
api.URL.protocol 📋Firefox6/25/2013 Chrome1/14/2014203
api.URL.search 📋Firefox6/25/2013 Chrome1/14/2014203
Firefox: Before Firefox 53, pathname and search returned wrong values for custom protocols. Given protocol:host/x?a=true&b=false, pathname would return "/x?a=true&b=false" and search would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.Firefox for Android: Before Firefox for Android 53, pathname and search returned wrong values for custom protocols. Given protocol:host/x?a=true&b=false, pathname would return "/x?a=true&b=false" and search would return "", rather than "/x" and "?a=true&b=false" respectively. See bug 1310483.
api.URL.username 📋Firefox12/10/2013 Chrome1/14/201435

2013/12

API First Browser Date Last Browser Date Days Notes
api.DOMTokenList.add.multiple_parameters Chrome1/10/2013 Firefox12/10/2013334
api.DOMTokenList.remove.multiple_parameters Chrome1/10/2013 Firefox12/10/2013334
api.HTMLAnchorElement.origin 📋Chrome12/2/2010 Firefox12/10/20131104
Firefox: Before Firefox 49, results for URL using the blob scheme incorrectly returned null.Firefox for Android: Before Firefox for Android 49, results for URL using the blob scheme incorrectly returned null.
api.HTMLSelectElement.selectedOptions 📋Chrome5/15/2012 Firefox12/10/2013574
api.MessageEvent.MessageEvent 📋Chrome12/13/2011 Firefox12/10/2013728
api.Notification.dir 📋Chrome6/26/2012 Firefox12/10/2013532
api.Notification.tag 📋Chrome6/26/2012 Firefox12/10/2013532
Safari: The property can be set, but has no effect.
api.URL.URL 📋Chrome5/15/2012 Firefox12/10/2013574
Edge: Before Edge 79, query arguments in the base URL argument are removed when calling the URL constructor.Firefox: Before version 122, host, hostname, and port were not parsed for unknown protocols/schemes.Firefox for Android: Before version 122, host, hostname, and port were not parsed for unknown protocols/schemes.Safari: Before Safari 14.1, calling the URL constructor with a base URL whose value is undefined caused Safari to throw a TypeError, see bug 216841.Safari on iOS: Before Safari on iOS 14.1, calling the URL constructor with a base URL whose value is undefined caused Safari on iOS to throw a TypeError, see bug 216841.WebView on iOS: Before WebView on iOS 14.1, calling the URL constructor with a base URL whose value is undefined caused WebView on iOS to throw a TypeError, see bug 216841.
api.WaveShaperNode.oversample 📋Chrome8/20/2013 Firefox12/10/2013112

2013/11

API First Browser Date Last Browser Date Days Notes
api.DOMParser.parseFromString.html Firefox4/24/2012 Chrome11/12/2013567
api.DeviceMotionEvent 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEvent.acceleration 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEvent.accelerationIncludingGravity 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEvent.interval 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEvent.rotationRate 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEventAcceleration 📋Firefox8/16/2011 Chrome11/12/2013819
Firefox: The DeviceMotionEventAcceleration interface is supported, but not exposed on the Window scope.Firefox for Android: The DeviceMotionEventAcceleration interface is supported, but not exposed on the Window scope.Safari on iOS: The DeviceMotionEventAcceleration interface is supported, but not exposed on the Window scope.
api.DeviceMotionEventAcceleration.x 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEventAcceleration.y 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEventAcceleration.z 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEventRotationRate 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEventRotationRate.alpha 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEventRotationRate.beta 📋Firefox8/16/2011 Chrome11/12/2013819
api.DeviceMotionEventRotationRate.gamma 📋Firefox8/16/2011 Chrome11/12/2013819
api.Element.wheel_event 📋Firefox11/20/2012 Chrome11/12/2013357
Internet Explorer: The onwheel event handler property is not supported. To listen to this event, use element.addEventListener('wheel', function() {});. See IE bug 782835.
api.Navigator.registerProtocolHandler.scheme_parameter_wtai Firefox10/24/2006 Chrome11/12/20132576
api.WheelEvent.deltaX 📋Firefox11/20/2012 Chrome11/12/2013357
Internet Explorer: IE9 supports an old draft of the spec where this value was a long instead of a double.
api.WheelEvent.deltaY 📋Firefox11/20/2012 Chrome11/12/2013357
Internet Explorer: IE9 supports an old draft of the spec where this value was a long instead of a double.
api.WheelEvent.deltaZ 📋Firefox11/20/2012 Chrome11/12/2013357
Internet Explorer: IE9 supports an old draft of the spec where this value was a long instead of a double.
api.Window.devicemotion_event 📋Firefox8/16/2011 Chrome11/12/2013819
api.XMLHttpRequest.responseType 📋Firefox8/16/2011 Chrome11/12/2013819
api.XMLHttpRequest.responseType.arraybuffer_value Firefox8/16/2011 Chrome11/12/2013819
api.XMLHttpRequest.responseType.blob_value Firefox8/16/2011 Chrome11/12/2013819
api.XMLHttpRequest.responseType.document_value Firefox3/13/2012 Chrome11/12/2013609
api.XMLHttpRequest.responseType.json_value Firefox1/31/2012 Chrome11/12/2013651

2013/10

API First Browser Date Last Browser Date Days Notes
api.AnalyserNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.fftSize 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.frequencyBinCount 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.getByteFrequencyData 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.getByteTimeDomainData 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.getFloatFrequencyData 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.maxDecibels 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.minDecibels 📋Chrome9/16/2011 Firefox10/29/2013774
api.AnalyserNode.smoothingTimeConstant 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBuffer 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBuffer.duration 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBuffer.getChannelData 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBuffer.length 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBuffer.numberOfChannels 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBuffer.sampleRate 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBufferSourceNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBufferSourceNode.buffer 📋Chrome9/16/2011 Firefox10/29/2013774
Firefox: Firefox currently handles the value null incorrectly. Instead of producing a node that generates a single channel of silence, the node becomes unusable and will be ignored if you attempt to connect it to anything.Firefox for Android: Firefox for Android currently handles the value null incorrectly. Instead of producing a node that generates a single channel of silence, the node becomes unusable and will be ignored if you attempt to connect it to anything.
api.AudioBufferSourceNode.loop 📋Chrome10/25/2011 Firefox10/29/2013735
api.AudioBufferSourceNode.loopEnd 📋Chrome1/10/2013 Firefox10/29/2013292
api.AudioBufferSourceNode.loopStart 📋Chrome1/10/2013 Firefox10/29/2013292
api.AudioBufferSourceNode.playbackRate 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioBufferSourceNode.start 📋Chrome1/10/2013 Firefox10/29/2013292
api.AudioContext.createMediaElementSource 📋Chrome10/25/2011 Firefox10/29/2013735
Firefox: If a sample rate is specified for the audio context, it must match the sample rate of the stream, otherwise this method will fail.Firefox for Android: If a sample rate is specified for the audio context, it must match the sample rate of the stream, otherwise this method will fail.
api.AudioContext.createMediaStreamDestination 📋Chrome2/21/2013 Firefox10/29/2013250
api.AudioContext.createMediaStreamSource 📋Chrome9/25/2012 Firefox10/29/2013399
api.AudioDestinationNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioDestinationNode.maxChannelCount 📋Chrome5/21/2013 Firefox10/29/2013161
Safari: This property always returns 0.Safari on iOS: This property always returns 0.WebView on iOS: This property always returns 0.
api.AudioListener 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioListener.setOrientation 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioListener.setPosition 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioNode.channelCount 📋Chrome5/21/2013 Firefox10/29/2013161
api.AudioNode.channelCountMode 📋Chrome5/21/2013 Firefox10/29/2013161
api.AudioNode.channelInterpretation 📋Chrome5/21/2013 Firefox10/29/2013161
api.AudioNode.connect 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioNode.context 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioNode.disconnect 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioNode.numberOfInputs 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioNode.numberOfOutputs 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioParam 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioParam.cancelScheduledValues 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioParam.defaultValue 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioParam.exponentialRampToValueAtTime 📋Chrome9/16/2011 Firefox10/29/2013774
Chrome Android: Behaves like setValueAtTime(): Sets the target volume at the specified time, but doesn't ramp to it.Firefox: Sometimes jumps to value immediately. See bug 2011524.Firefox for Android: Sometimes jumps to value immediately. See bug 2011524.Quest Browser: Behaves like setValueAtTime(): Sets the target volume at the specified time, but doesn't ramp to it.WebView Android: Behaves like setValueAtTime(): Sets the target volume at the specified time, but doesn't ramp to it.
api.AudioParam.linearRampToValueAtTime 📋Chrome9/16/2011 Firefox10/29/2013774
Chrome Android: Behaves like setValueAtTime(): Sets the target volume at the specified time, but doesn't ramp to it.Firefox: Sometimes jumps to value immediately. See bug 2011524.Firefox for Android: Sometimes jumps to value immediately. See bug 2011524.Quest Browser: Behaves like setValueAtTime(): Sets the target volume at the specified time, but doesn't ramp to it.WebView Android: Behaves like setValueAtTime(): Sets the target volume at the specified time, but doesn't ramp to it.
api.AudioParam.setTargetAtTime 📋Chrome1/10/2013 Firefox10/29/2013292
api.AudioParam.setValueAtTime 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioParam.setValueCurveAtTime 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioParam.value 📋Chrome9/16/2011 Firefox10/29/2013774
Chrome: Before version 66, the gain value of a GainNode would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Chrome Android: Before version 66, the gain value of a GainNode would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Firefox: Before Firefox 134, setting value was ignored when done at the same time as scheduled automation events.Firefox: Before Firefox 69, value did not take into account scheduled or gradiated changes to the parameter's value; instead, only explicitly set values were returned.Firefox for Android: Firefox for Android does not currently take into account scheduled or gradiated changes to the parameter's value; only the initial value or the most recent explicitly set value is returned.Quest Browser: Before version 5.0, the gain value of a GainNode would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Opera: Before version 53, the gain value of a GainNode would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Opera Android: Before version 47, the gain value of a GainNode would perform a smooth interpolation to prevent dezippering (instead of changing instantly).Samsung Internet: Before version 9.0, the gain value of a GainNode would perform a smooth interpolation to prevent dezippering (instead of changing instantly).WebView Android: Before version 66, the gain value of a GainNode would perform a smooth interpolation to prevent dezippering (instead of changing instantly).
api.AudioProcessingEvent Chrome9/16/2011 Firefox10/29/2013774
api.AudioProcessingEvent.inputBuffer 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioProcessingEvent.outputBuffer 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioProcessingEvent.playbackTime 📋Chrome9/16/2011 Firefox10/29/2013774
api.AudioScheduledSourceNode.ended_event 📋Chrome10/1/2013 Firefox10/29/201328
api.AudioScheduledSourceNode.start 📋Chrome1/10/2013 Firefox10/29/2013292
api.AudioScheduledSourceNode.stop 📋Chrome1/10/2013 Firefox10/29/2013292
api.BaseAudioContext.createAnalyser 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createBiquadFilter 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createBuffer 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createBufferSource 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createChannelMerger 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createChannelSplitter 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createConvolver 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createDelay 📋Chrome1/10/2013 Firefox10/29/2013292
api.BaseAudioContext.createDynamicsCompressor 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createGain 📋Chrome1/10/2013 Firefox10/29/2013292
api.BaseAudioContext.createOscillator 📋Chrome6/26/2012 Firefox10/29/2013490
api.BaseAudioContext.createPanner 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.createPeriodicWave 📋Chrome10/1/2013 Firefox10/29/201328
api.BaseAudioContext.createScriptProcessor 📋Chrome1/10/2013 Firefox10/29/2013292
api.BaseAudioContext.createWaveShaper 📋Chrome10/25/2011 Firefox10/29/2013735
api.BaseAudioContext.currentTime 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.decodeAudioData 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.destination 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.listener 📋Chrome9/16/2011 Firefox10/29/2013774
api.BaseAudioContext.sampleRate 📋Chrome9/16/2011 Firefox10/29/2013774
api.BiquadFilterNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.BiquadFilterNode.Q 📋Chrome9/16/2011 Firefox10/29/2013774
api.BiquadFilterNode.detune 📋Chrome2/21/2013 Firefox10/29/2013250
api.BiquadFilterNode.frequency 📋Chrome9/16/2011 Firefox10/29/2013774
api.BiquadFilterNode.gain 📋Chrome9/16/2011 Firefox10/29/2013774
api.BiquadFilterNode.getFrequencyResponse 📋Chrome2/8/2012 Firefox10/29/2013629
api.BiquadFilterNode.type 📋Chrome9/16/2011 Firefox10/29/2013774
api.ChannelMergerNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.ChannelSplitterNode 📋Chrome9/16/2011 Firefox10/29/2013774
Chrome: Starting in Chrome 56, channelCountMode is set to explicit and channelCount is fixed to the number of outputs, as per the latest spec.Chrome Android: Starting in Chrome Android 56, channelCountMode is set to explicit and channelCount is fixed to the number of outputs, as per the latest spec.Quest Browser: Starting in Quest Browser 5.0, channelCountMode is set to explicit and channelCount is fixed to the number of outputs, as per the latest spec.Opera: Starting in Opera 43, channelCountMode is set to explicit and channelCount is fixed to the number of outputs, as per the latest spec.Opera Android: Starting in Opera Android 43, channelCountMode is set to explicit and channelCount is fixed to the number of outputs, as per the latest spec.Samsung Internet: Starting in Samsung Internet 6.0, channelCountMode is set to explicit and channelCount is fixed to the number of outputs, as per the latest spec.WebView Android: Starting in version 56, channelCountMode is set to explicit and channelCount is fixed to the number of outputs, as per the latest spec.
api.CharacterData.nextElementSibling 📋Chrome8/20/2013 Firefox10/29/201370
api.CharacterData.previousElementSibling 📋Chrome8/20/2013 Firefox10/29/201370
api.ConvolverNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.ConvolverNode.buffer 📋Chrome9/16/2011 Firefox10/29/2013774
api.ConvolverNode.normalize 📋Chrome3/28/2012 Firefox10/29/2013580
api.DelayNode 📋Chrome1/10/2013 Firefox10/29/2013292
api.DelayNode.delayTime 📋Chrome1/10/2013 Firefox10/29/2013292
api.Document.childElementCount 📋Chrome8/20/2013 Firefox10/29/201370
api.Document.children 📋Chrome8/20/2013 Firefox10/29/201370
api.Document.firstElementChild 📋Chrome8/20/2013 Firefox10/29/201370
api.Document.lastElementChild 📋Chrome8/20/2013 Firefox10/29/201370
api.DocumentFragment.childElementCount 📋Chrome8/20/2013 Firefox10/29/201370
api.DocumentFragment.children 📋Chrome8/20/2013 Firefox10/29/201370
api.DocumentFragment.firstElementChild 📋Chrome8/20/2013 Firefox10/29/201370
api.DocumentFragment.lastElementChild 📋Chrome8/20/2013 Firefox10/29/201370
api.DynamicsCompressorNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.DynamicsCompressorNode.attack 📋Chrome5/15/2012 Firefox10/29/2013532
api.DynamicsCompressorNode.knee 📋Chrome5/15/2012 Firefox10/29/2013532
api.DynamicsCompressorNode.ratio 📋Chrome5/15/2012 Firefox10/29/2013532
api.DynamicsCompressorNode.reduction 📋Chrome5/15/2012 Firefox10/29/2013532
Chrome: Before version 52, this was an AudioParam..Chrome Android: Before version 52, this was an AudioParam..Quest Browser: Before version 5.0, this was an AudioParam..Samsung Internet: Before Samsung Internet 6.0, this was an AudioParam..WebView Android: Before version 52, this was an AudioParam..
api.DynamicsCompressorNode.release 📋Chrome6/26/2012 Firefox10/29/2013490
api.DynamicsCompressorNode.threshold 📋Chrome5/15/2012 Firefox10/29/2013532
api.GainNode 📋Chrome1/10/2013 Firefox10/29/2013292
api.GainNode.gain 📋Chrome1/10/2013 Firefox10/29/2013292
api.HTMLIFrameElement.srcdoc 📋Chrome6/26/2012 Firefox10/29/2013490
api.HTMLTableElement.createTBody 📋Chrome6/26/2012 Firefox10/29/2013490
api.MediaElementAudioSourceNode 📋Chrome10/25/2011 Firefox10/29/2013735
api.MediaStreamAudioDestinationNode 📋Chrome2/21/2013 Firefox10/29/2013250
api.MediaStreamAudioDestinationNode.stream 📋Chrome2/21/2013 Firefox10/29/2013250
api.MediaStreamAudioSourceNode 📋Chrome9/25/2012 Firefox10/29/2013399
api.OES_vertex_array_object 📋Chrome1/10/2013 Firefox10/29/2013292
api.OES_vertex_array_object.bindVertexArrayOES 📋Chrome1/10/2013 Firefox10/29/2013292
api.OES_vertex_array_object.createVertexArrayOES 📋Chrome1/10/2013 Firefox10/29/2013292
api.OES_vertex_array_object.deleteVertexArrayOES 📋Chrome1/10/2013 Firefox10/29/2013292
api.OES_vertex_array_object.isVertexArrayOES 📋Chrome1/10/2013 Firefox10/29/2013292
api.OfflineAudioCompletionEvent 📋Chrome9/16/2011 Firefox10/29/2013774
api.OfflineAudioCompletionEvent.renderedBuffer 📋Chrome9/16/2011 Firefox10/29/2013774
api.OfflineAudioContext.complete_event 📋Chrome2/21/2013 Firefox10/29/2013250
api.OfflineAudioContext.startRendering 📋Chrome2/21/2013 Firefox10/29/2013250
api.OscillatorNode 📋Chrome6/26/2012 Firefox10/29/2013490
api.OscillatorNode.detune 📋Chrome6/26/2012 Firefox10/29/2013490
api.OscillatorNode.frequency 📋Chrome6/26/2012 Firefox10/29/2013490
api.OscillatorNode.setPeriodicWave 📋Chrome10/1/2013 Firefox10/29/201328
api.OscillatorNode.type 📋Chrome6/26/2012 Firefox10/29/2013490
api.PannerNode 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.coneInnerAngle 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.coneOuterAngle 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.coneOuterGain 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.distanceModel 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.maxDistance 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.panningModel 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.refDistance 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.rolloffFactor 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.setOrientation 📋Chrome9/16/2011 Firefox10/29/2013774
api.PannerNode.setPosition 📋Chrome9/16/2011 Firefox10/29/2013774
api.PeriodicWave 📋Chrome10/1/2013 Firefox10/29/201328
api.Range.collapse.toStart_parameter_optional Chrome12/11/2008 Firefox10/29/20131783
Internet Explorer: Optional but defaults to true.
api.SVGSVGElement.deselectAll 📋Chrome12/11/2008 Firefox10/29/20131783
api.ScriptProcessorNode Chrome1/10/2013 Firefox10/29/2013292
api.ScriptProcessorNode.audioprocess_event Chrome1/10/2013 Firefox10/29/2013292
api.ScriptProcessorNode.bufferSize 📋Chrome1/10/2013 Firefox10/29/2013292
api.WaveShaperNode 📋Chrome10/25/2011 Firefox10/29/2013735
api.WaveShaperNode.curve 📋Chrome10/25/2011 Firefox10/29/2013735
api.WebGLVertexArrayObjectOES 📋Chrome1/10/2013 Firefox10/29/2013292
api.BeforeUnloadEvent 📋Firefox11/29/2005 Chrome10/1/20132863
api.Element.mouseenter_event 📋Firefox1/31/2012 Chrome10/1/2013609
api.Element.mouseleave_event 📋Firefox1/31/2012 Chrome10/1/2013609
api.KeyboardEvent.getModifierState 📋Firefox8/28/2012 Chrome10/1/2013399
api.KeyboardEvent.getModifierState.key_parameter_alt Firefox8/28/2012 Chrome10/1/2013399
api.KeyboardEvent.getModifierState.key_parameter_control Firefox8/28/2012 Chrome10/1/2013399
api.KeyboardEvent.getModifierState.key_parameter_meta Firefox8/28/2012 Chrome10/1/2013399
api.KeyboardEvent.getModifierState.key_parameter_shift Firefox8/28/2012 Chrome10/1/2013399
api.KeyboardEvent.location 📋Firefox8/28/2012 Chrome10/1/2013399
api.Navigator.registerProtocolHandler.scheme_parameter_geo Firefox10/24/2006 Chrome10/1/20132534
api.Navigator.registerProtocolHandler.scheme_parameter_im Firefox10/24/2006 Chrome10/1/20132534
api.Navigator.registerProtocolHandler.scheme_parameter_ircs Firefox10/24/2006 Chrome10/1/20132534
api.Navigator.registerProtocolHandler.scheme_parameter_magnet Firefox10/24/2006 Chrome10/1/20132534
api.Navigator.registerProtocolHandler.scheme_parameter_sip Firefox10/24/2006 Chrome10/1/20132534
api.Navigator.registerProtocolHandler.scheme_parameter_xmpp Firefox10/24/2006 Chrome10/1/20132534
api.RTCDataChannel.id 📋Firefox6/25/2013 Chrome10/1/201398
api.RTCDataChannel.ordered 📋Firefox6/25/2013 Chrome10/1/201398
api.RTCDataChannel.protocol 📋Firefox6/25/2013 Chrome10/1/201398
api.SVGGraphicsElement 📋Firefox4/2/2013 Chrome10/1/2013182
Chrome: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Chrome Android: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Firefox: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Firefox for Android: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Internet Explorer: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Opera: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Opera Android: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Safari: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Safari on iOS: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.Samsung Internet: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.WebView Android: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.WebView on iOS: The SVGGraphicsElement interface itself is not present, but some of its members are available on interfaces that inherit from SVGGraphicsElement.
api.atob.worker_support Firefox3/22/2011 Chrome10/1/2013924
api.btoa.worker_support Firefox3/22/2011 Chrome10/1/2013924

2013/9

API First Browser Date Last Browser Date Days Notes
api.Comment.Comment 📋Chrome8/20/2013 Firefox9/17/201328
api.DOMTokenList.toggle.force_parameter Chrome1/10/2013 Firefox9/17/2013250
api.DocumentFragment.DocumentFragment 📋Chrome8/20/2013 Firefox9/17/201328
api.Element.blur_event 📋Chrome12/11/2008 Firefox9/17/20131741
Firefox: The interface for this event is Event, not FocusEvent.Firefox for Android: The interface for this event is Event, not FocusEvent.
api.Element.focus_event 📋Chrome12/11/2008 Firefox9/17/20131741
Firefox: The interface for this event is Event, not FocusEvent.Firefox for Android: The interface for this event is Event, not FocusEvent.
api.FocusEvent 📋Chrome3/26/2013 Firefox9/17/2013175
api.FocusEvent.FocusEvent 📋Chrome3/26/2013 Firefox9/17/2013175
api.FocusEvent.relatedTarget 📋Chrome3/26/2013 Firefox9/17/2013175
api.MediaStreamEvent Chrome3/26/2013 Firefox9/17/2013175
api.MediaStreamEvent.MediaStreamEvent Chrome3/26/2013 Firefox9/17/2013175
api.MediaStreamEvent.stream Chrome3/26/2013 Firefox9/17/2013175
api.MediaStreamTrack.enabled 📋Chrome3/26/2013 Firefox9/17/2013175
api.OES_element_index_uint 📋Chrome1/10/2013 Firefox9/17/2013250
api.OES_texture_float_linear 📋Chrome8/20/2013 Firefox9/17/201328
Safari on iOS: Only supported on iPadOS.WebView on iOS: Only supported on iPadOS.
api.RTCPeerConnection.getLocalStreams Chrome5/21/2013 Firefox9/17/2013119
api.RTCPeerConnection.getRemoteStreams Chrome5/21/2013 Firefox9/17/2013119
api.RTCPeerConnection.iceConnectionState 📋Chrome3/26/2013 Firefox9/17/2013175
api.RTCPeerConnection.iceconnectionstatechange_event 📋Chrome7/9/2013 Firefox9/17/201370
api.RTCPeerConnection.signalingState 📋Chrome3/26/2013 Firefox9/17/2013175
api.RTCPeerConnectionIceEvent.candidate 📋Chrome1/10/2013 Firefox9/17/2013250
api.Range.Range 📋Chrome8/20/2013 Firefox9/17/201328
api.Text.Text 📋Chrome8/20/2013 Firefox9/17/201328

2013/8

API First Browser Date Last Browser Date Days Notes
api.Document.currentScript 📋Firefox3/22/2011 Chrome8/20/2013882
api.XMLHttpRequest.timeout 📋Firefox4/24/2012 Chrome8/20/2013483
api.XMLHttpRequest.timeout_event 📋Firefox4/24/2012 Chrome8/20/2013483
api.XMLHttpRequestUpload.timeout_event 📋Firefox4/24/2012 Chrome8/20/2013483
api.CharacterData.remove 📋Chrome1/10/2013 Firefox8/6/2013208
api.DocumentType.remove 📋Chrome1/10/2013 Firefox8/6/2013208
api.Element.remove 📋Chrome1/10/2013 Firefox8/6/2013208
api.TransitionEvent.TransitionEvent 📋Chrome5/21/2013 Firefox8/6/201377
api.TransitionEvent.pseudoElement 📋Chrome5/21/2009 Firefox8/6/20131538
api.Window.cancelAnimationFrame 📋Chrome1/10/2013 Firefox8/6/2013208
api.Window.requestAnimationFrame 📋Chrome1/10/2013 Firefox8/6/2013208
Edge: Before version 17, Edge does not reliably fire requestAnimationFrame before the paint cycle.Firefox: Callback parameter is a DOMHighResTimestamp. This means ten microsecond precision and zero time as performance.now().Firefox: Callback parameter is a DOMTimestamp. This means millisecond precision and zero time as Date.now().Firefox: Could be called with no input parameters.Internet Explorer: Internet Explorer does not reliably fire requestAnimationFrame before the paint cycle.

2013/7

API First Browser Date Last Browser Date Days Notes
api.CSS 📋Firefox6/25/2013 Chrome7/9/201314
api.CSS.supports_static 📋Firefox6/25/2013 Chrome7/9/201314
api.CSSSupportsRule 📋Firefox6/25/2013 Chrome7/9/201314
api.Navigator.registerProtocolHandler.scheme_parameter_bitcoin Firefox10/24/2006 Chrome7/9/20132450

2013/6

API First Browser Date Last Browser Date Days Notes
api.Element.copy_event 📋Chrome12/11/2008 Firefox6/25/20131657
Internet Explorer: Before Internet Explorer 9, this event is not supported via addEventListener; however, the event handler is supported since IE 5.5. The event can be listened to via element.oncopy.
api.Element.cut_event 📋Chrome12/11/2008 Firefox6/25/20131657
Internet Explorer: Before Internet Explorer 9, this event is not supported via addEventListener; however, the event handler is supported since IE 5.5. The event can be listened to via element.oncopy.
api.Element.paste_event 📋Chrome12/11/2008 Firefox6/25/20131657
Internet Explorer: Before Internet Explorer 11, copying files does not trigger the paste event.Internet Explorer: Before Internet Explorer 9, this event is not supported via addEventListener; however, the event handler is supported since IE 5.5. The event can be listened to via element.oncopy.
api.FormData.append.filename_parameter Chrome12/13/2011 Firefox6/25/2013560
api.HTMLTemplateElement 📋Chrome3/26/2013 Firefox6/25/201391
api.HTMLTemplateElement.content 📋Chrome3/26/2013 Firefox6/25/201391
api.MediaStream.getAudioTracks 📋Chrome3/26/2013 Firefox6/25/201391
Firefox: Before Firefox 64, this method returned an array of AudioStreamTrack objects. However, MediaStreamTrack has now subsumed that interface's functionality.Firefox for Android: Before Firefox for Android 64, this method returned an array of AudioStreamTrack objects. However, MediaStreamTrack has now subsumed that interface's functionality.
api.MediaStream.getVideoTracks 📋Chrome3/26/2013 Firefox6/25/201391
Firefox: Before Firefox 64, this method returned an array of VideoStreamTrack objects. However, MediaStreamTrack has now subsumed that interface's functionality.Firefox for Android: Before Firefox for Android 64, this method returned an array of VideoStreamTrack objects. However, MediaStreamTrack has now subsumed that interface's functionality.
api.MediaStreamTrack 📋Chrome3/26/2013 Firefox6/25/201391
api.MediaStreamTrack.id 📋Chrome3/26/2013 Firefox6/25/201391
api.MediaStreamTrack.kind 📋Chrome3/26/2013 Firefox6/25/201391
api.MediaStreamTrack.label 📋Chrome3/26/2013 Firefox6/25/201391
api.Notification 📋Chrome6/26/2012 Firefox6/25/2013364
Chrome: Starting in Chrome 49, notifications do not work in incognito mode.Chrome: Before Chrome 42, service worker additions were not supported.Chrome Android: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Quest Browser: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Opera: Starting in Opera 36, notifications do not work in incognito mode.Opera: Before Opera 29, service worker additions were not supported.Opera Android: Notifications in Opera for Android are only available through service workers. To show notifications on Android, see ServiceWorkerRegistration.showNotification().Opera Android: Starting in Opera for Android 36, notifications do not work in incognito mode.Safari on iOS: The Notification interface is undefined, unless the page is a web app saved to the home screen. The app's manifest must have a non-default display value.Safari on iOS: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Samsung Internet: Notifications in Samsung Internet are only available through service workers. To show notifications on Android, see ServiceWorkerRegistration.showNotification().Samsung Internet: Starting in Samsung Internet 5.0, notifications do not work in incognito mode.
api.Notification.Notification 📋Chrome6/26/2012 Firefox6/25/2013364
Chrome Android: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Chrome Android: This constructor always throws a TypeError exception.Quest Browser: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Quest Browser: This constructor always throws a TypeError exception.Opera Android: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Opera Android: This constructor always throws a TypeError exception.Safari on iOS: This constructor throws a ReferenceError exception, unless the page is a web app saved to the home screen. The app's manifest must have a non-default display value.Safari on iOS: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Samsung Internet: A notification can only be sent from a service worker. To show a notification, see ServiceWorkerRegistration.showNotification().Samsung Internet: This constructor always throws a TypeError exception.
api.Notification.click_event 📋Chrome6/26/2012 Firefox6/25/2013364
api.Notification.close 📋Chrome6/26/2012 Firefox6/25/2013364
api.Notification.close_event 📋Chrome6/26/2012 Firefox6/25/2013364
api.Notification.error_event 📋Chrome6/26/2012 Firefox6/25/2013364
api.Notification.requestPermission_static 📋Chrome6/26/2012 Firefox6/25/2013364
Firefox: From Firefox 70 onwards, cannot be called from a cross-origin iframe.Firefox: From Firefox 72 onwards, can only be called in response to a user gesture such as a click event.Firefox for Android: From Firefox Android 79 onwards, cannot be called from a cross-origin iframe.Firefox for Android: From Firefox Android 79 onwards, can only be called in response to a user gesture such as a click event.Safari: Only supported the deprecated callback syntax.Safari on iOS: The parent Notification interface is undefined unless the page is a web app saved to the home screen. The app's manifest must have a non-default display value.
api.Notification.show_event 📋Chrome6/26/2012 Firefox6/25/2013364
api.RTCDataChannel 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.binaryType 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.binaryType.arraybuffer_value Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.bufferedAmount 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.close 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.close_event 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.error_event 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.label 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.message_event 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.open_event 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.readyState 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannel.send 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannelEvent 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCDataChannelEvent.channel 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCIceCandidate.candidate 📋Chrome11/6/2012 Firefox6/25/2013231
Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox 126, the property was not read-only.
api.RTCIceCandidate.sdpMLineIndex 📋Chrome11/6/2012 Firefox6/25/2013231
Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox 126, the property was not read-only.
api.RTCIceCandidate.sdpMid 📋Chrome11/6/2012 Firefox6/25/2013231
Firefox: Before Firefox 126, the property was not read-only.Firefox for Android: Before Firefox 126, the property was not read-only.
api.RTCPeerConnection.addIceCandidate 📋Chrome1/10/2013 Firefox6/25/2013166
Firefox: Starting in Firefox 68, the candidate parameter is optional when calling addIceCandidate(). A null value for candidate indicates no more candidates will be sent, while an empty candidate string indicates that no more candidates will be sent for the current generation of candidates.Firefox for Android: Starting in Firefox 68, the candidate parameter is optional when calling addIceCandidate(). A null value for candidate indicates no more candidates will be sent, while an empty candidate string indicates that no more candidates will be sent for the current generation of candidates.
api.RTCPeerConnection.addStream Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.addstream_event Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.close 📋Chrome11/6/2012 Firefox6/25/2013231
api.RTCPeerConnection.createAnswer 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.createDataChannel 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.createOffer 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.datachannel_event 📋Chrome2/21/2013 Firefox6/25/2013124
api.RTCPeerConnection.iceGatheringState 📋Chrome2/21/2013 Firefox6/25/2013124
api.RTCPeerConnection.icecandidate_event 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.localDescription 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.remoteDescription 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCPeerConnection.setLocalDescription 📋Chrome1/10/2013 Firefox6/25/2013166
Firefox: Firefox does not support descriptions of type pranswer.Firefox for Android: Firefox does not support descriptions of type pranswer.
api.RTCPeerConnection.setRemoteDescription 📋Chrome1/10/2013 Firefox6/25/2013166
api.RTCSessionDescription.sdp 📋Chrome11/6/2012 Firefox6/25/2013231
api.RTCSessionDescription.type 📋Chrome11/6/2012 Firefox6/25/2013231
api.SVGAnimatedPreserveAspectRatio.animVal 📋Chrome5/25/2010 Firefox6/25/20131127
api.SVGAnimatedPreserveAspectRatio.baseVal 📋Chrome5/25/2010 Firefox6/25/20131127
api.SVGFEImageElement.preserveAspectRatio 📋Chrome5/25/2010 Firefox6/25/20131127
api.WEBGL_compressed_texture_s3tc 📋Chrome3/26/2013 Firefox6/25/201391
api.WEBGL_depth_texture 📋Chrome3/26/2013 Firefox6/25/201391
api.WEBGL_lose_context 📋Chrome3/26/2013 Firefox6/25/201391
api.WEBGL_lose_context.loseContext 📋Chrome3/26/2013 Firefox6/25/201391
api.WEBGL_lose_context.restoreContext 📋Chrome3/26/2013 Firefox6/25/201391

2013/5

API First Browser Date Last Browser Date Days Notes
api.TransitionEvent 📋Firefox3/22/2011 Chrome5/21/2013791
api.Crypto 📋Chrome4/27/2011 Firefox5/14/2013748
Deno: Crypto is not a concrete interface, but its methods are available on Window.crypto.Node.js: Available as a part of the crypto module.
api.Crypto.getRandomValues 📋Chrome4/27/2011 Firefox5/14/2013748
Node.js: Since v17.4.0, a similar method is available via the crypto module.
api.Element.scrollHeight 📋Chrome12/11/2008 Firefox5/14/20131615
Firefox: Before Firefox 21, when an element's content does not generate a vertical scrollbar, then its scrollHeight property is equal to its clientHeight property. This can mean either the content is too short to require a scrollbar or that the element has a CSS style overflow value of visible (non-scrollable).Firefox for Android: Before Firefox for Android 21, when an element's content does not generate a vertical scrollbar, then its scrollHeight property is equal to its clientHeight property. This can mean either the content is too short to require a scrollbar or that the element has a CSS style overflow value of visible (non-scrollable).Internet Explorer: In Internet Explorer 5 through 7, if padding is set, the value of scrollHeight is equal to the sum of the top and bottom padding. This behavior was fixed in Internet Explorer 8.
api.Location.origin 📋Chrome12/2/2010 Firefox5/14/2013894
Firefox: Before Firefox 49, results for URL using the blob scheme incorrectly returned null.Firefox for Android: Before Firefox for Android 49, results for URL using the blob scheme incorrectly returned null.Internet Explorer: Intranet sites are set to Compatibility View, which will emulate IE7 and omit window.location.origin.

2013/4

API First Browser Date Last Browser Date Days Notes
api.HTMLAnchorElement.download 📋Chrome10/25/2011 Firefox4/2/2013525
api.HTMLMediaElement.defaultPlaybackRate 📋Chrome9/15/2009 Firefox4/2/20131295
api.HTMLMediaElement.playbackRate 📋Chrome9/15/2009 Firefox4/2/20131295
Chrome: Setting the playbackRate to a negative value will throw an error.Chrome Android: Setting the playbackRate to a negative value will throw an error.Edge: Setting the playbackRate to a negative value will throw an error.Firefox: Setting the playbackRate to a negative value will throw an error.Firefox for Android: Setting the playbackRate to a negative value will throw an error.Quest Browser: Setting the playbackRate to a negative value will throw an error.Opera: Setting the playbackRate to a negative value will throw an error.Opera Android: Setting the playbackRate to a negative value will throw an error.Samsung Internet: Setting the playbackRate to a negative value will throw an error.WebView Android: Setting the playbackRate to a negative value will throw an error.
api.HTMLTableRowElement.insertCell.index_parameter_negative_one Chrome12/11/2008 Firefox4/2/20131573
api.HTMLTableRowElement.insertCell.index_parameter_optional Chrome12/11/2008 Firefox4/2/20131573
api.SVGTextPathElement.method 📋Chrome12/11/2008 Firefox4/2/20131573
api.SVGTextPathElement.spacing 📋Chrome12/11/2008 Firefox4/2/20131573
api.SVGTextPathElement.startOffset 📋Chrome12/11/2008 Firefox4/2/20131573
api.Window.postMessage.transfer_parameter Chrome1/25/2010 Firefox4/2/20131163
api.XMLHttpRequest.send.body_ArrayBufferView_type Chrome9/25/2012 Firefox4/2/2013189

2013/3

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.isPointInStroke 📋Firefox2/19/2013 Chrome3/26/201335
api.EventSource.EventSource.options_withCredentials_parameter Firefox3/13/2012 Chrome3/26/2013378
api.EventSource.withCredentials 📋Firefox8/16/2011 Chrome3/26/2013588
api.MouseEvent.MouseEvent 📋Firefox3/13/2012 Chrome3/26/2013378
api.MutationObserver 📋Firefox7/17/2012 Chrome3/26/2013252
api.MutationObserver.MutationObserver 📋Firefox7/17/2012 Chrome3/26/2013252
api.Navigator.registerProtocolHandler.scheme_parameter_smsto Firefox10/24/2006 Chrome3/26/20132345
api.UIEvent.UIEvent 📋Firefox3/13/2012 Chrome3/26/2013378
api.WheelEvent.WheelEvent 📋Firefox11/20/2012 Chrome3/26/2013126
api.WheelEvent.deltaMode 📋Firefox11/20/2012 Chrome3/26/2013126

2013/2

API First Browser Date Last Browser Date Days Notes
api.CSSPageRule 📋Chrome12/11/2008 Firefox2/19/20131531
api.CSSPageRule.style 📋Chrome12/11/2008 Firefox2/19/20131531
api.Document.URL 📋Chrome12/11/2008 Firefox2/19/20131531
Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.compatMode 📋Chrome12/2/2010 Firefox2/19/2013810
Chrome: Only supported for HTMLDocument, not all Document objects.Firefox: Only supported for HTMLDocument, not all Document objects.Firefox for Android: Only supported for HTMLDocument, not all Document objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.URL.createObjectURL_static 📋Chrome5/15/2012 Firefox2/19/2013280
Firefox: createObjectURL() is no longer available within the context of a ServiceWorker.Firefox for Android: createObjectURL() is no longer available within the context of a ServiceWorker.Internet Explorer: If the underlying object does not have a content type set, using this URL as the src of an img tag fails intermittently with error DOM7009.
api.URL.revokeObjectURL_static 📋Chrome5/15/2012 Firefox2/19/2013280
Firefox: revokeObjectURL() is no longer available within the context of a ServiceWorker.Firefox for Android: revokeObjectURL() is no longer available within the context of a ServiceWorker.

2013/1

API First Browser Date Last Browser Date Days Notes
api.IDBCursor 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBCursorWithValue 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBDatabase 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBFactory 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBIndex 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBKeyRange 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBObjectStore 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBOpenDBRequest 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBRequest 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBTransaction 📋Firefox10/9/2012 Chrome1/10/201393
api.IDBVersionChangeEvent 📋Firefox10/9/2012 Chrome1/10/201393
api.Performance.now 📋Firefox8/28/2012 Chrome1/10/2013135
Firefox: In Firefox 57.0.4 the accuracy was reduced to 20 microseconds.Firefox: In Firefox 59 the accuracy was reduced to 2 milliseconds.Firefox: In Firefox 60 the accuracy was increased to 1 millisecond.Firefox for Android: In Firefox for Android 57.0.4 the accuracy was reduced to 20 microseconds.Firefox for Android: In Firefox for Android 59 the accuracy was reduced to 2 milliseconds.Firefox for Android: In Firefox for Android 60 the accuracy was increased to 1 millisecond.
api.indexedDB 📋Firefox10/9/2012 Chrome1/10/201393
api.HTMLOListElement.reversed 📋Chrome3/28/2012 Firefox1/8/2013286
api.ProgressEvent.ProgressEvent 📋Chrome12/13/2011 Firefox1/8/2013392
api.WebSocket.send 📋Chrome5/25/2010 Firefox1/8/2013959
Firefox: Only parameter of type ArrayBuffer and String supported.Firefox: Only parameter of type String supported.Firefox: Only parameter of type String supported. Returns boolean.Firefox for Android: Only parameter of type ArrayBuffer and String supported.Firefox for Android: Only parameter of type String supported.Firefox for Android: Only parameter of type String supported. Returns boolean.
api.Window.devicePixelRatio 📋Chrome12/11/2008 Firefox1/8/20131489
Safari: In Safari, the devicePixelRatio does not change when the page is zoomed. See bug 124862.Safari on iOS: In Safari on iOS, the devicePixelRatio does not change when the page is zoomed. See bug 124862.WebView on iOS: In WebView on iOS, the devicePixelRatio does not change when the page is zoomed. See bug 124862.

2012/11

API First Browser Date Last Browser Date Days Notes
api.Event.initEvent 📋Chrome12/11/2008 Firefox11/20/20121440
Firefox: Before Firefox 17, a call to this method after the dispatching of the event raised an exception instead of doing nothing.Firefox for Android: Before Firefox for Android 17, a call to this method after the dispatching of the event raised an exception instead of doing nothing.
api.HTMLIFrameElement.sandbox 📋Chrome5/25/2010 Firefox11/20/2012910
Chrome: Before Chrome 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Chrome Android: Before Chrome Android 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Firefox: Previously, the type of sandbox was a DOMString instead of a DOMSettableTokenList. This has been fixed with Firefox 29. Other browsers may still implement the property as DOMString since it was a late change in the specification.Firefox for Android: Previously, the type of sandbox was a DOMString instead of a DOMSettableTokenList. This has been fixed with Firefox for Android 29. Other browsers may still implement the property as DOMString since it was a late change in the specification.Quest Browser: Before Quest Browser 5.0, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Opera: Before Opera 37, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Opera Android: Before Opera Android 37, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Samsung Internet: Before Samsung Internet 5.0, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.WebView Android: Before WebView Android 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.
api.Range.intersectsNode 📋Chrome12/11/2008 Firefox11/20/20121440
api.WheelEvent 📋Chrome12/11/2008 Firefox11/20/20121440
api.Element.id 📋Firefox11/9/2004 Chrome11/6/20122919
Chrome: Only supported for HTMLElement, not all Element objects, such as SVGElement.Chrome Android: Only supported for HTMLElement, not all Element objects, such as SVGElement.Samsung Internet: Only supported for HTMLElement, not all Element objects, such as SVGElement.
api.IDBCursor.advance 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursor.continue 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursor.delete 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursor.direction 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursor.key 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursor.primaryKey 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursor.source 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursor.update 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBCursorWithValue.value 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.abort_event 📋Firefox1/31/2012 Chrome11/6/2012280
Internet Explorer: Unknown limitations
api.IDBDatabase.close 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.createObjectStore 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.deleteObjectStore 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.name 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.objectStoreNames 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.transaction 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.version 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBDatabase.versionchange_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBFactory.cmp 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBFactory.deleteDatabase 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBFactory.open 📋Firefox1/31/2012 Chrome11/6/2012280
Safari: In some releases of Safari 14, the first indexedDB.open() call hangs forever, see bug 226547.Safari on iOS: In some releases of Safari on iOS 14, the first indexedDB.open() call hangs forever, see bug 226547.WebView on iOS: In some releases of WebView on iOS 14, the first indexedDB.open() call hangs forever, see bug 226547.
api.IDBIndex.count 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.get 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.getKey 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.keyPath 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.multiEntry 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.name 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.objectStore 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.openCursor 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.openKeyCursor 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBIndex.unique 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.bound_static 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.lower 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.lowerBound_static 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.lowerOpen 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.only_static 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.upper 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.upperBound_static 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBKeyRange.upperOpen 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.add 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.autoIncrement 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.clear 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.count 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.createIndex 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.delete 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.deleteIndex 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.get 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.index 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.indexNames 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.keyPath 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.name 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.openCursor 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.put 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBObjectStore.transaction 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBOpenDBRequest.blocked_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBOpenDBRequest.upgradeneeded_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBRequest.error 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBRequest.error_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBRequest.readyState 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBRequest.result 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBRequest.source 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBRequest.success_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBRequest.transaction 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.abort 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.abort_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.complete_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.db 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.error 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.error_event 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.mode 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBTransaction.objectStore 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBVersionChangeEvent.newVersion 📋Firefox1/31/2012 Chrome11/6/2012280
api.IDBVersionChangeEvent.oldVersion 📋Firefox1/31/2012 Chrome11/6/2012280
api.Navigator.doNotTrack Firefox12/20/2011 Chrome11/6/2012322
Edge: Before version 17, Edge implemented window.doNotTrack.Firefox: In Firefox, navigator.doNotTrack returns "unspecified" instead of null.Firefox: Before Firefox 32, navigator.doNotTrack would report values of "yes" and "no" rather than "1" and "0".Firefox for Android: In Firefox for Android, navigator.doNotTrack returns "unspecified" instead of null.Firefox for Android: Before Firefox for Android 32, navigator.doNotTrack would report values of "yes" and "no" rather than "1" and "0".Internet Explorer: For IE11 and subsequent versions, use window.doNotTrack

2012/10

API First Browser Date Last Browser Date Days Notes
api.HTMLInputElement.height 📋Chrome7/31/2012 Firefox10/9/201270
api.HTMLInputElement.max 📋Chrome1/25/2010 Firefox10/9/2012988
api.HTMLInputElement.min 📋Chrome1/25/2010 Firefox10/9/2012988
api.HTMLInputElement.step 📋Chrome5/25/2010 Firefox10/9/2012868
api.HTMLInputElement.stepDown 📋Chrome5/25/2010 Firefox10/9/2012868
Firefox: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.Firefox for Android: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.
api.HTMLInputElement.stepUp 📋Chrome5/25/2010 Firefox10/9/2012868
Firefox: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.Firefox for Android: Does not have a specific UI. There are still differences with the latest spec; see bug 835773.
api.HTMLInputElement.valueAsNumber 📋Chrome5/25/2010 Firefox10/9/2012868
api.HTMLInputElement.width 📋Chrome7/31/2012 Firefox10/9/201270
api.HTMLMeterElement 📋Chrome9/2/2010 Firefox10/9/2012768
api.HTMLMeterElement.high 📋Chrome9/2/2010 Firefox10/9/2012768
api.HTMLMeterElement.low 📋Chrome9/2/2010 Firefox10/9/2012768
api.HTMLMeterElement.max 📋Chrome9/2/2010 Firefox10/9/2012768
api.HTMLMeterElement.min 📋Chrome9/2/2010 Firefox10/9/2012768
api.HTMLMeterElement.optimum 📋Chrome9/2/2010 Firefox10/9/2012768
api.HTMLMeterElement.value 📋Chrome9/2/2010 Firefox10/9/2012768

2012/9

API First Browser Date Last Browser Date Days Notes
api.Element.classList 📋Firefox1/21/2010 Chrome9/25/2012978
Chrome: Not supported for SVG elements.Chrome Android: Not supported for SVG elements.Edge: Not supported for SVG elements.Internet Explorer: Not supported for SVG elements.Safari: Not supported for SVG elements.Safari on iOS: Not supported for SVG elements.Samsung Internet: Not supported for SVG elements.WebView Android: Not supported for SVG elements.WebView on iOS: Not supported for SVG elements.
api.Element.className 📋Firefox11/9/2004 Chrome9/25/20122877
Chrome: Only supported for HTMLElement, not all Element objects, such as SVGElement.Chrome Android: Only supported for HTMLElement, not all Element objects, such as SVGElement.Samsung Internet: Only supported for HTMLElement, not all Element objects, such as SVGElement.
api.XMLHttpRequest.send.body_Blob_type Firefox10/24/2006 Chrome9/25/20122163

2012/8

API First Browser Date Last Browser Date Days Notes
api.File.lastModified 📋Chrome8/2/2011 Firefox8/28/2012392
api.HTMLMediaElement.played 📋Chrome9/15/2009 Firefox8/28/20121078
api.HTMLSourceElement.media 📋Chrome9/15/2009 Firefox8/28/20121078
api.SVGAnimatedRect.animVal 📋Chrome12/11/2008 Firefox8/28/20121356
api.SVGAnimatedRect.baseVal 📋Chrome12/11/2008 Firefox8/28/20121356
api.SVGViewElement 📋Chrome12/11/2008 Firefox8/28/20121356
api.SVGViewElement.preserveAspectRatio 📋Chrome12/11/2008 Firefox8/28/20121356
api.SVGViewElement.viewBox 📋Chrome12/11/2008 Firefox8/28/20121356

2012/7

API First Browser Date Last Browser Date Days Notes
api.Blob.slice 📋Firefox6/5/2012 Chrome7/31/201256
Firefox: Before Firefox 12, there was a bug that affected the behavior of Blob.slice(); it did not work for start and end positions outside the range of signed 64-bit values; it has now been fixed to support unsigned 64-bit values.Firefox for Android: Before Firefox for Android 14, there was a bug that affected the behavior of Blob.slice(); it did not work for start and end positions outside the range of signed 64-bit values; it has now been fixed to support unsigned 64-bit values.
api.HTMLFieldSetElement.elements 📋Firefox3/22/2011 Chrome7/31/2012497
api.HTMLImageElement.x 📋Chrome12/11/2008 Firefox7/17/20121314
api.HTMLImageElement.y 📋Chrome12/11/2008 Firefox7/17/20121314
api.HTMLScriptElement.crossOrigin 📋Chrome5/15/2012 Firefox7/17/201263
api.MutationObserver.disconnect 📋Chrome3/28/2012 Firefox7/17/2012111
api.MutationObserver.observe 📋Chrome3/28/2012 Firefox7/17/2012111
Chrome: Before Chrome 33, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Chrome throws a syntax error.Chrome Android: Before Chrome Android 33, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Chrome Android throws a syntax error.Edge: Before Edge 79, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Edge throws a syntax error.Firefox: Before Firefox 36, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Firefox throws a syntax error.Firefox for Android: Before Firefox for Android 36, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Firefox for Android throws a syntax error.Internet Explorer: Internet Explorer requires attributes: true when using attributeFilter or attributeOldValue. If attributes: true is not present, then Internet Explorer throws a syntax error.Quest Browser: Before Quest Browser 5.0, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Quest Browser throws a syntax error.Opera: Before Opera 20, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Opera throws a syntax error.Opera Android: Before Opera Android 20, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Opera Android throws a syntax error.Safari: Before Safari 10.1, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Safari throws a syntax error.Safari on iOS: Before Safari iOS 10.3, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Safari throws a syntax error.Samsung Internet: Before Samsung Internet 2.0, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Samsung Internet throws a syntax error.WebView Android: Before WebView 4.4.3, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then WebView throws a syntax error.WebView on iOS: Before Safari iOS 10.3, attributes: true is required when using attributeFilter or attributeOldValue. If attributes: true is not present, then Safari throws a syntax error.
api.MutationObserver.takeRecords 📋Chrome6/26/2012 Firefox7/17/201221
api.MutationRecord 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.addedNodes 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.attributeName 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.attributeNamespace 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.nextSibling 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.oldValue 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.previousSibling 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.removedNodes 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.target 📋Chrome12/13/2011 Firefox7/17/2012217
api.MutationRecord.type 📋Chrome12/13/2011 Firefox7/17/2012217

2012/6

API First Browser Date Last Browser Date Days Notes
api.Blob.Blob 📋Firefox6/5/2012 Chrome6/26/201221
Firefox: Before Firefox 16, the second parameter, when set to null or undefined, leads to an error instead of being handled as an empty dictionary.Firefox for Android: Before Firefox for Android 16, the second parameter, when set to null or undefined, leads to an error instead of being handled as an empty dictionary.Internet Explorer: IE10 throws InvalidStateError with a TypedArray argument. Consider using MSBuilder as an alternative.Node.js: Before v16.7.0, the endings option was not supported.
api.HTMLDataListElement 📋Firefox3/22/2011 Chrome6/26/2012462
api.HTMLDataListElement.options 📋Firefox3/22/2011 Chrome6/26/2012462
api.HTMLFieldSetElement.disabled 📋Firefox3/22/2011 Chrome6/26/2012462
api.HTMLInputElement.list 📋Firefox3/22/2011 Chrome6/26/2012462
api.StorageEvent 📋Chrome12/11/2008 Firefox6/5/20121272
api.StorageEvent.StorageEvent Chrome2/8/2012 Firefox6/5/2012118
api.StorageEvent.initStorageEvent 📋Chrome1/25/2010 Firefox6/5/2012862
api.StorageEvent.key 📋Chrome12/11/2008 Firefox6/5/20121272
api.StorageEvent.newValue 📋Chrome12/11/2008 Firefox6/5/20121272
api.StorageEvent.oldValue 📋Chrome12/11/2008 Firefox6/5/20121272
api.StorageEvent.storageArea 📋Chrome9/15/2009 Firefox6/5/2012994
api.StorageEvent.url 📋Chrome9/2/2010 Firefox6/5/2012642

2012/5

API First Browser Date Last Browser Date Days Notes
api.HTMLFieldSetElement.name 📋Firefox3/22/2011 Chrome5/15/2012420
api.HTMLFieldSetElement.type 📋Firefox3/22/2011 Chrome5/15/2012420
api.History.state 📋Firefox3/22/2011 Chrome5/15/2012420
api.SVGAnimateMotionElement 📋Firefox3/22/2011 Chrome5/15/2012420
api.SVGMPathElement 📋Firefox3/22/2011 Chrome5/15/2012420
api.SVGMPathElement.href 📋Firefox3/22/2011 Chrome5/15/2012420

2012/4

API First Browser Date Last Browser Date Days Notes
api.Document.createTreeWalker.whatToShow_filter_parameters_optional Chrome1/25/2010 Firefox4/24/2012820
api.SVGAnimationElement.requiredExtensions 📋Chrome5/21/2009 Firefox4/24/20121069
api.SVGAnimationElement.systemLanguage 📋Chrome5/21/2009 Firefox4/24/20121069
api.SVGGraphicsElement.requiredExtensions 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGGraphicsElement.systemLanguage 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList 📋Chrome12/11/2008 Firefox4/24/20121230
Firefox: Since version 13, SVGStringList is indexable like Array which is a non-standard behavior.Firefox for Android: SVGStringList is indexable like Array which is a non-standard behavior.
api.SVGStringList.appendItem 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList.clear 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList.getItem 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList.initialize 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList.insertItemBefore 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList.numberOfItems 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList.removeItem 📋Chrome12/11/2008 Firefox4/24/20121230
api.SVGStringList.replaceItem 📋Chrome12/11/2008 Firefox4/24/20121230

2012/3

API First Browser Date Last Browser Date Days Notes
api.Element.compositionupdate_event 📋Firefox12/20/2011 Chrome3/28/201299
api.EventSource.url 📋Firefox8/16/2011 Chrome3/28/2012225
api.WebSocket.url 📋Firefox9/27/2011 Chrome3/28/2012183
api.XMLHttpRequest.loadend_event 📋Firefox6/21/2011 Chrome3/28/2012281
api.XMLHttpRequestUpload.loadend_event 📋Firefox6/21/2011 Chrome3/28/2012281
api.CloseEvent.CloseEvent 📋Chrome12/13/2011 Firefox3/13/201291
api.CustomEvent.CustomEvent 📋Chrome10/25/2011 Firefox3/13/2012140
api.Element.outerHTML 📋Chrome12/11/2008 Firefox3/13/20121188
api.Event.Event 📋Chrome10/25/2011 Firefox3/13/2012140
api.HTMLMediaElement.defaultMuted 📋Chrome10/25/2011 Firefox3/13/2012140
api.HTMLMediaElement.loop 📋Chrome9/15/2009 Firefox3/13/2012910
api.HashChangeEvent.HashChangeEvent 📋Chrome12/13/2011 Firefox3/13/201291
api.PageTransitionEvent.PageTransitionEvent 📋Chrome12/13/2011 Firefox3/13/201291
api.PageTransitionEvent.persisted 📋Chrome1/25/2010 Firefox3/13/2012778
Internet Explorer: The persisted property is known to be buggy in Internet Explorer. It is advised to check if window.performance.navigation.type == 2 as well.
api.PopStateEvent.PopStateEvent 📋Chrome12/13/2011 Firefox3/13/201291
api.WebSocket 📋Chrome5/25/2010 Firefox3/13/2012658
Firefox: Message size limited to 16 MB (see bug 711205).Firefox for Android: Message size limited to 16 MB (see bug 711205).
api.WebSocket.WebSocket 📋Chrome5/25/2010 Firefox3/13/2012658
api.WebSocket.binaryType 📋Chrome10/25/2011 Firefox3/13/2012140
api.WebSocket.protocol_rfc_6455 Chrome12/13/2011 Firefox3/13/201291

2012/2

API First Browser Date Last Browser Date Days Notes
api.HTMLElement.accessKey 📋Firefox6/21/2011 Chrome2/8/2012232

2012/1

API First Browser Date Last Browser Date Days Notes
api.DOMParser.parseFromString.svg Chrome1/25/2010 Firefox1/31/2012736
api.Event.stopImmediatePropagation 📋Chrome5/25/2010 Firefox1/31/2012616
api.OES_standard_derivatives 📋Chrome3/8/2011 Firefox1/31/2012329
api.console.timeEnd_static 📋Chrome5/21/2009 Firefox1/31/2012985
api.console.time_static 📋Chrome5/21/2009 Firefox1/31/2012985

2011/12

API First Browser Date Last Browser Date Days Notes
api.CompositionEvent 📋Chrome10/25/2011 Firefox12/20/201156
api.CompositionEvent.data 📋Chrome10/25/2011 Firefox12/20/201156
api.CompositionEvent.initCompositionEvent 📋Chrome10/25/2011 Firefox12/20/201156
api.Element.compositionend_event 📋Chrome10/25/2011 Firefox12/20/201156
api.Element.compositionstart_event 📋Chrome10/25/2011 Firefox12/20/201156
api.HTMLElement.drag_event 📋Chrome12/11/2008 Firefox12/20/20111104
Firefox: The drag event handler receives a DragEvent whose coordinate properties (clientX/clientY, pageX/pageY, screenX/screenY) are always 0. See bug 505521.Firefox for Android: The drag event handler receives a DragEvent whose coordinate properties (clientX/clientY, pageX/pageY, screenX/screenY) are always 0. See bug 505521.
api.HTMLElement.dragend_event 📋Chrome12/11/2008 Firefox12/20/20111104
api.HTMLElement.dragenter_event 📋Chrome12/11/2008 Firefox12/20/20111104
api.HTMLElement.dragleave_event 📋Chrome12/11/2008 Firefox12/20/20111104
api.HTMLElement.dragover_event 📋Chrome12/11/2008 Firefox12/20/20111104
api.HTMLElement.dragstart_event 📋Chrome12/11/2008 Firefox12/20/20111104
api.HTMLElement.drop_event 📋Chrome12/11/2008 Firefox12/20/20111104
api.HTMLMediaElement.abort_event 📋Chrome9/15/2009 Firefox12/20/2011826
api.Node.contains 📋Chrome12/13/2011 Firefox12/20/20117
Internet Explorer: Only supported for HTMLElement, not all Node objects.
api.Node.ownerDocument 📋Chrome12/11/2008 Firefox12/20/20111104
Firefox: The ownerDocument of doctype nodes (that is, nodes for which Node.nodeType is Node.DOCUMENT_TYPE_NODE or 10) is null.Firefox for Android: The ownerDocument of doctype nodes (that is, nodes for which Node.nodeType is Node.DOCUMENT_TYPE_NODE or 10) is null.
api.Node.parentElement 📋Chrome12/11/2008 Firefox12/20/20111104
Internet Explorer: Only supported on Element.Opera: Before Opera 15, this feature was only supported on Element.Opera Android: Before Opera Android 14, this feature was only supported on Element.
api.Window.offline_event 📋Chrome9/15/2009 Firefox12/20/2011826
api.Window.online_event 📋Chrome9/15/2009 Firefox12/20/2011826
api.XMLHttpRequest.send.body_ArrayBuffer_type Chrome2/3/2011 Firefox12/20/2011320
api.console.groupCollapsed_static 📋Chrome9/2/2010 Firefox12/20/2011474
Node.js: Alias for console.group
api.console.groupEnd_static 📋Chrome5/21/2009 Firefox12/20/2011943
api.console.group_static 📋Chrome5/21/2009 Firefox12/20/2011943
api.console.substitution_strings Chrome12/11/2008 Firefox12/20/20111104
Chrome: In version 28, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.Chrome Android: In version 28, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.Deno: Before Deno 1.4, %c is not supported.Deno: %c only supports CSS properties color, background-color, font-weight, font-style, text-decoration-color, and text-decoration-line.Edge: Before Edge 79, %c is not supported.Edge: Before Edge 79, %d outputs a 0 if the specified value isn't a number.Internet Explorer: %c is not supported.Internet Explorer: %d outputs a 0 if the specified value isn't a number.Quest Browser: In version 5.0, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.Samsung Internet: In Samsung Internet 1.5, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.WebView Android: In version 4.4, if a negative value is passed to %d, it will be rounded down to the closest negative integer, so -0.1 becomes -1.
api.HTMLTextAreaElement.wrap 📋Firefox3/22/2011 Chrome12/13/2011266
api.WebSocket.extensions 📋Firefox11/8/2011 Chrome12/13/201135

2011/11

API First Browser Date Last Browser Date Days Notes
api.CloseEvent 📋Chrome10/25/2011 Firefox11/8/201114
Firefox: Before Firefox 12, the close code CLOSE_NORMAL was used when the channel was closed due to an unexpected error or unspecified error condition.Firefox: Before Firefox 8, the WebSocket close event was sent to the listener as a simple event.
api.CloseEvent.code 📋Chrome10/25/2011 Firefox11/8/201114
api.CloseEvent.reason 📋Chrome10/25/2011 Firefox11/8/201114
api.CloseEvent.wasClean 📋Chrome10/25/2011 Firefox11/8/201114
api.Element.insertAdjacentHTML 📋Chrome12/11/2008 Firefox11/8/20111062
Edge: Only supported for HTMLElement, not all Element objects, such as SVGElement.Internet Explorer: Before Internet Explorer 10, throws an "Invalid target element for this operation." error when called on a <table>, <tbody>, <thead>, or <tr> element.Internet Explorer: Only supported for HTMLElement, not all Element objects, such as SVGElement.
api.FileReaderSync 📋Chrome10/19/2010 Firefox11/8/2011385
api.FileReaderSync.FileReaderSync 📋Chrome10/19/2010 Firefox11/8/2011385
api.FileReaderSync.readAsArrayBuffer 📋Chrome2/3/2011 Firefox11/8/2011278
api.FileReaderSync.readAsBinaryString 📋Chrome10/19/2010 Firefox11/8/2011385
api.FileReaderSync.readAsDataURL 📋Chrome10/19/2010 Firefox11/8/2011385
api.FileReaderSync.readAsText 📋Chrome10/19/2010 Firefox11/8/2011385
api.FileReaderSync.worker_support Chrome10/19/2010 Firefox11/8/2011385
api.HTMLImageElement.crossOrigin 📋Chrome8/2/2011 Firefox11/8/201198
api.HTMLInputElement.selectionDirection 📋Chrome10/25/2011 Firefox11/8/201114
api.HTMLMediaElement.seekable 📋Chrome9/15/2009 Firefox11/8/2011784
api.HTMLTextAreaElement.selectionDirection 📋Chrome10/25/2011 Firefox11/8/201114
api.console.dir_static 📋Chrome5/21/2009 Firefox11/8/2011901

2011/10

API First Browser Date Last Browser Date Days Notes
api.HTMLSpanElement 📋Firefox11/9/2004 Chrome10/25/20112541
api.HTMLUnknownElement 📋Firefox11/9/2004 Chrome10/25/20112541
api.Navigator.registerProtocolHandler.scheme_parameter_irc Firefox10/24/2006 Chrome10/25/20111827
api.WebSocket.protocol 📋Firefox9/27/2011 Chrome10/25/201128

2011/9

API First Browser Date Last Browser Date Days Notes
api.File 📋Chrome8/2/2011 Firefox9/27/201156
Firefox: Non-standard implementation.Firefox for Android: Non-standard implementation.Node.js: Before 23.0.0, File instance cannot be cloned.Node.js: Available as a part of the buffer module.Node.js: Available as a part of the buffer module.
api.HTMLOptionElement.label 📋Chrome12/11/2008 Firefox9/27/20111020
Firefox: Before Firefox 7 the label property incorrectly returned an empty string if not defined instead of returning the element's text content.Firefox for Android: Before Firefox for Android 7 the label property incorrectly returned an empty string if not defined instead of returning the element's text content.
api.Performance 📋Chrome9/2/2010 Firefox9/27/2011390
Node.js: Only available as an internal instance.
api.Performance.navigation 📋Chrome3/8/2011 Firefox9/27/2011203
api.Performance.timing 📋Chrome9/2/2010 Firefox9/27/2011390
Node.js: Returns node specific timing object
api.PerformanceNavigation 📋Chrome3/8/2011 Firefox9/27/2011203
api.PerformanceNavigation.redirectCount 📋Chrome3/8/2011 Firefox9/27/2011203
api.PerformanceNavigation.type 📋Chrome3/8/2011 Firefox9/27/2011203
Firefox: Before Firefox 70, this property could return incorrect values. See bug 1459711.Firefox for Android: Before Firefox for Android 79, this property could return incorrect values. See bug 1459711.
api.PerformanceTiming 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.connectEnd 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.connectStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.domComplete 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.domContentLoadedEventEnd 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.domContentLoadedEventStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.domInteractive 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.domLoading 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.domainLookupEnd 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.domainLookupStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.fetchStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.loadEventEnd 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.loadEventStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.navigationStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.redirectEnd 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.redirectStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.requestStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.responseEnd 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.responseStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.unloadEventEnd 📋Chrome9/2/2010 Firefox9/27/2011390
api.PerformanceTiming.unloadEventStart 📋Chrome9/2/2010 Firefox9/27/2011390
api.WebSocket.bufferedAmount 📋Chrome5/25/2010 Firefox9/27/2011490
api.WebSocket.close 📋Chrome5/25/2010 Firefox9/27/2011490
api.WebSocket.close_event 📋Chrome5/25/2010 Firefox9/27/2011490
api.WebSocket.error_event 📋Chrome5/25/2010 Firefox9/27/2011490
api.WebSocket.message_event 📋Chrome5/25/2010 Firefox9/27/2011490
api.WebSocket.open_event 📋Chrome5/25/2010 Firefox9/27/2011490
api.WebSocket.readyState 📋Chrome5/25/2010 Firefox9/27/2011490
api.performance 📋Chrome9/2/2010 Firefox9/27/2011390
Node.js: Available as a part of the perf_hooks module.
api.HTMLFormElement.autocomplete 📋Firefox3/22/2011 Chrome9/16/2011178
api.HTMLInputElement.autocomplete 📋Firefox3/22/2011 Chrome9/16/2011178

2011/8

API First Browser Date Last Browser Date Days Notes
api.CustomEvent 📋Chrome5/25/2010 Firefox8/16/2011448
api.CustomEvent.detail 📋Chrome5/25/2010 Firefox8/16/2011448
api.CustomEvent.initCustomEvent 📋Chrome5/25/2010 Firefox8/16/2011448
api.DOMStringMap 📋Chrome10/19/2010 Firefox8/16/2011301
api.DeviceOrientationEvent 📋Chrome10/19/2010 Firefox8/16/2011301
Chrome: Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the deviceorientationabsolute event.Chrome Android: Before version 50, Chrome Android provided absolute values instead of relative values for this event. Developers still needing absolute values may use the deviceorientationabsolute event.Firefox: Firefox 3.6, 4, and 5 supported mozOrientation instead of the standard DeviceOrientationEvent interface.Firefox for Android: Firefox for Android 4.6, 4, and 5 supported mozOrientation instead of the standard DeviceOrientationEvent interface.Quest Browser: Before version 5.0, Quest Browser provided absolute values instead of relative values for this event. Developers still needing absolute values may use the deviceorientationabsolute event.Samsung Internet: Before Samsung Internet 5.0, Samsung Internet provided absolute values instead of relative values for this event. Developers still needing absolute values may use the deviceorientationabsolute event.WebView Android: Before version 50, Chrome provided absolute values instead of relative values for this event. Developers still needing absolute values may use the deviceorientationabsolute event.
api.DeviceOrientationEvent.absolute 📋Chrome10/19/2010 Firefox8/16/2011301
api.DeviceOrientationEvent.alpha 📋Chrome10/19/2010 Firefox8/16/2011301
api.DeviceOrientationEvent.beta 📋Chrome10/19/2010 Firefox8/16/2011301
api.DeviceOrientationEvent.gamma 📋Chrome10/19/2010 Firefox8/16/2011301
api.Document.scroll_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.Element.click_event 📋Chrome12/11/2008 Firefox8/16/2011978
Firefox: Beginning in Firefox 68, Firefox no longer incorrectly sends a click event for buttons other than the primary mouse button; previously, there were circumstances in which this would occur. One example: middle-clicking a link would send a click to the document's <html> element.
api.Element.contextmenu_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.Element.dblclick_event 📋Chrome12/11/2008 Firefox8/16/2011978
Firefox: Starting in Firefox 68, dblclick events are only sent for the primary mouse button, per the specification.
api.Element.input_event 📋Chrome12/11/2008 Firefox8/16/2011978
Edge: Not supported on select, checkbox, or radio inputs.Internet Explorer: Only supports input of type text and password.
api.Element.keydown_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.Element.keypress_event 📋Chrome12/11/2008 Firefox8/16/2011978
Chrome: Chrome does not fire the keypress event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the keydown event to implement keyboard shortcuts.Chrome Android: Chrome Android does not fire the keypress event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the keydown event to implement keyboard shortcuts.Firefox: As of Firefox 65, the keypress event is no longer fired for non-printable keys, except for the Enter key, and the Shift + Enter and Ctrl + Enter key combinations (these were kept for cross-browser compatibility purposes).Firefox for Android: As of Firefox for Android 65, the keypress event is no longer fired for non-printable keys, except for the Enter key, and the Shift + Enter and Ctrl + Enter key combinations (these were kept for cross-browser compatibility purposes).Quest Browser: Quest Browser does not fire the keypress event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the keydown event to implement keyboard shortcuts.Opera: Opera does not fire the keypress event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the keydown event to implement keyboard shortcuts.Opera Android: Opera does not fire the keypress event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the keydown event to implement keyboard shortcuts.Samsung Internet: Samsung Internet does not fire the keypress event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the keydown event to implement keyboard shortcuts.WebView Android: Chrome does not fire the keypress event for known keyboard shortcuts. Which keyboard shortcuts are known depends on the user's system. Use the keydown event to implement keyboard shortcuts.
api.Element.keyup_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.Element.mousedown_event 📋Chrome5/21/2009 Firefox8/16/2011817
api.Element.mousemove_event 📋Chrome5/21/2009 Firefox8/16/2011817
api.Element.mouseout_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.Element.mouseover_event 📋Chrome5/21/2009 Firefox8/16/2011817
api.Element.mouseup_event 📋Chrome5/21/2009 Firefox8/16/2011817
api.Element.scroll_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.Event.defaultPrevented 📋Chrome5/25/2010 Firefox8/16/2011448
api.EventSource 📋Chrome9/2/2010 Firefox8/16/2011348
api.EventSource.EventSource 📋Chrome9/2/2010 Firefox8/16/2011348
api.EventSource.close 📋Chrome9/2/2010 Firefox8/16/2011348
api.EventSource.error_event 📋Chrome9/2/2010 Firefox8/16/2011348
api.EventSource.message_event 📋Chrome9/2/2010 Firefox8/16/2011348
api.EventSource.open_event 📋Chrome9/2/2010 Firefox8/16/2011348
api.EventSource.readyState 📋Chrome9/2/2010 Firefox8/16/2011348
api.EventTarget.addEventListener.useCapture_parameter_optional Chrome12/11/2008 Firefox8/16/2011978
api.EventTarget.removeEventListener.useCapture_parameter_optional Chrome12/11/2008 Firefox8/16/2011978
api.HTMLElement.dataset 📋Chrome10/19/2010 Firefox8/16/2011301
api.HTMLFormElement.reset_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.HTMLInputElement.select_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.HTMLMediaElement.error_event 📋Chrome9/15/2009 Firefox8/16/2011700
api.HTMLMediaElement.loadstart_event 📋Chrome9/15/2009 Firefox8/16/2011700
api.HTMLMediaElement.progress_event 📋Chrome9/15/2009 Firefox8/16/2011700
api.HTMLMediaElement.volumechange_event 📋Chrome9/15/2009 Firefox8/16/2011700
api.HTMLMediaElement.waiting_event 📋Chrome9/15/2009 Firefox8/16/2011700
api.HTMLProgressElement 📋Chrome9/2/2010 Firefox8/16/2011348
api.HTMLProgressElement.max 📋Chrome9/2/2010 Firefox8/16/2011348
api.HTMLProgressElement.position 📋Chrome9/2/2010 Firefox8/16/2011348
api.HTMLProgressElement.value 📋Chrome9/2/2010 Firefox8/16/2011348
api.HTMLTextAreaElement.select_event 📋Chrome12/11/2008 Firefox8/16/2011978
api.HashChangeEvent.newURL 📋Chrome12/2/2010 Firefox8/16/2011257
api.HashChangeEvent.oldURL 📋Chrome12/2/2010 Firefox8/16/2011257
api.MediaQueryList 📋Chrome2/3/2011 Firefox8/16/2011194
api.MediaQueryList.addListener 📋Chrome2/3/2011 Firefox8/16/2011194
api.MediaQueryList.matches 📋Chrome2/3/2011 Firefox8/16/2011194
api.MediaQueryList.media 📋Chrome2/3/2011 Firefox8/16/2011194
api.MediaQueryList.removeListener 📋Chrome2/3/2011 Firefox8/16/2011194
api.OES_texture_float 📋Chrome3/8/2011 Firefox8/16/2011161
api.Window.blur_event 📋Chrome5/25/2010 Firefox8/16/2011448
Firefox: Apart from firing the event on window as other browsers do, Firefox also fires the event on the document object. See bug 1228802.Firefox: Before Firefox 24, the interface for this event is a plain Event, not FocusEvent.Firefox for Android: Apart from firing the event on window as other browsers do, Firefox for Android also fires the event on the document object. See bug 1228802.Firefox for Android: Before Firefox for Android 24, the interface for this event is a plain Event, not FocusEvent.
api.Window.deviceorientation_event 📋Chrome10/19/2010 Firefox8/16/2011301
api.Window.error_event 📋Chrome3/8/2011 Firefox8/16/2011161
api.Window.focus_event 📋Chrome5/25/2010 Firefox8/16/2011448
Firefox: Apart from firing the event on window as other browsers do, Firefox also fires the event on the document object. See bug 1228802.Firefox: Before Firefox 24, the interface for this event is a plain Event, not FocusEvent.Firefox for Android: Apart from firing the event on window as other browsers do, Firefox for Android also fires the event on the document object. See bug 1228802.Firefox for Android: Before Firefox for Android 24, the interface for this event is a plain Event, not FocusEvent.
api.Window.matchMedia 📋Chrome2/3/2011 Firefox8/16/2011194
api.Window.pagehide_event 📋Chrome9/15/2009 Firefox8/16/2011700
api.Window.pageshow_event 📋Chrome9/15/2009 Firefox8/16/2011700
api.XMLHttpRequest.response 📋Chrome2/3/2011 Firefox8/16/2011194
api.console.trace_static 📋Chrome5/21/2009 Firefox8/16/2011817
api.File.name 📋Firefox1/21/2010 Chrome8/2/2011558
api.Navigator.registerProtocolHandler 📋Firefox10/24/2006 Chrome8/2/20111743
Chrome: From Chrome 77, the URL parameter only accepts http or https URLs.
api.Navigator.registerProtocolHandler.scheme_parameter_mailto Firefox10/24/2006 Chrome8/2/20111743
api.Navigator.registerProtocolHandler.scheme_parameter_mms Firefox10/24/2006 Chrome8/2/20111743
api.Navigator.registerProtocolHandler.scheme_parameter_news Firefox10/24/2006 Chrome8/2/20111743
api.Navigator.registerProtocolHandler.scheme_parameter_nntp Firefox10/24/2006 Chrome8/2/20111743
api.Navigator.registerProtocolHandler.scheme_parameter_sms Firefox10/24/2006 Chrome8/2/20111743
api.Navigator.registerProtocolHandler.scheme_parameter_tel Firefox10/24/2006 Chrome8/2/20111743
api.Navigator.registerProtocolHandler.scheme_parameter_urn Firefox10/24/2006 Chrome8/2/20111743
api.Navigator.registerProtocolHandler.scheme_parameter_webcal Firefox10/24/2006 Chrome8/2/20111743

2011/6

API First Browser Date Last Browser Date Days Notes
api.CSSKeyframeRule.keyText 📋Chrome12/11/2008 Firefox6/21/2011922
api.CSSKeyframeRule.style 📋Chrome12/11/2008 Firefox6/21/2011922
api.CSSKeyframesRule.cssRules 📋Chrome12/11/2008 Firefox6/21/2011922
api.CSSKeyframesRule.deleteRule 📋Chrome12/11/2008 Firefox6/21/2011922
api.CSSKeyframesRule.findRule 📋Chrome12/11/2008 Firefox6/21/2011922
api.CSSKeyframesRule.name 📋Chrome12/11/2008 Firefox6/21/2011922
api.console.debug_static 📋Chrome5/21/2009 Firefox6/21/2011761
Node.js: Since Node.js 8.10.0, this method is an alias for console.log.
api.HTMLAnchorElement.ping 📋Firefox11/9/2004 Chrome6/7/20112401
Firefox: This property is exposed but has no effect if the browser.send_pings preference is not set to true. See bug 951104.Firefox for Android: This property is exposed but has no effect if the browser.send_pings preference is not set to true. See bug 951104.
api.HTMLAreaElement.ping 📋Firefox11/9/2004 Chrome6/7/20112401
Firefox: This property is exposed but has no effect if the browser.send_pings preference is not set to true. See bug 951104.Firefox for Android: This property is exposed but has no effect if the browser.send_pings preference is not set to true. See bug 951104.

2011/4

API First Browser Date Last Browser Date Days Notes
api.Window.getComputedStyle.pseudo_element_support Firefox6/30/2009 Chrome4/27/2011666

2011/3

API First Browser Date Last Browser Date Days Notes
api.Blob 📋Chrome5/25/2010 Firefox3/22/2011301
Node.js: Available as a part of the buffer module.Node.js: Available as a part of the buffer module.
api.Blob.size 📋Chrome5/25/2010 Firefox3/22/2011301
api.Blob.type 📋Chrome5/25/2010 Firefox3/22/2011301
api.DOMImplementation.createHTMLDocument 📋Chrome12/11/2008 Firefox3/22/2011831
Internet Explorer: The title parameter is required, but can be empty string.
api.Document.readystatechange_event 📋Chrome2/3/2011 Firefox3/22/201147
api.FormData 📋Chrome5/25/2010 Firefox3/22/2011301
Firefox: Before Firefox 7, specifying a Blob as the data to append to the object, the filename reported in the Content-Disposition HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename blob is sent.Firefox for Android: Before Firefox for Android 7, specifying a Blob as the data to append to the object, the filename reported in the Content-Disposition HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox for Android 7, the filename blob is sent.WebView Android: XHR in Android 4.0 sends empty content for FormData with blob.
api.FormData.FormData 📋Chrome5/25/2010 Firefox3/22/2011301
api.FormData.append 📋Chrome5/25/2010 Firefox3/22/2011301
Firefox: Before Firefox 7, specifying a Blob as the data to append to the object, the filename reported in the Content-Disposition HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox 7, the filename blob is sent.Firefox for Android: Before Firefox for Android 7, specifying a Blob as the data to append to the object, the filename reported in the Content-Disposition HTTP header was an empty string, resulting in errors on some servers. Starting with Firefox for Android 7, the filename blob is sent.Internet Explorer: With the "Include local directory pass when uploading files to a server" option enabled, IE will change the filename inside the Blob on the fly. To have direct control of the sent filename, the developer should send the filename as the third parameter value, i.e. formData.append(name, value, filename).WebView Android: XHR in Android 4.0 sends empty content for FormData with blob.
api.HTMLButtonElement.checkValidity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLButtonElement.formAction 📋Chrome2/3/2011 Firefox3/22/201147
Firefox: In Firefox 56, the implementation has been updated so that the formAction property returns the correct form submission URL, as per spec, when the associated button is being used to submit a form (bug 1366361).Firefox for Android: In Firefox for Android 56, the implementation has been updated so that the formAction property returns the correct form submission URL, as per spec, when the associated button is being used to submit a form (bug 1366361).
api.HTMLButtonElement.formEnctype 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLButtonElement.formMethod 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLButtonElement.formNoValidate 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLButtonElement.formTarget 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLButtonElement.setCustomValidity 📋Chrome1/25/2010 Firefox3/22/2011421
Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLButtonElement.validationMessage 📋Chrome5/25/2010 Firefox3/22/2011301
api.HTMLButtonElement.validity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLButtonElement.willValidate 📋Chrome5/21/2009 Firefox3/22/2011670
api.HTMLCanvasElement.webglcontextlost_event 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLCanvasElement.webglcontextrestored_event 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLElement.hidden 📋Chrome9/2/2010 Firefox3/22/2011201
api.HTMLElement.isContentEditable 📋Chrome12/11/2008 Firefox3/22/2011831
api.HTMLFieldSetElement.checkValidity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLFieldSetElement.setCustomValidity 📋Chrome1/25/2010 Firefox3/22/2011421
Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLFieldSetElement.validationMessage 📋Chrome5/25/2010 Firefox3/22/2011301
api.HTMLFieldSetElement.validity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLFieldSetElement.willValidate 📋Chrome5/21/2009 Firefox3/22/2011670
api.HTMLFormElement.checkValidity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLFormElement.noValidate 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLInputElement.checkValidity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLInputElement.formAction 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLInputElement.formEnctype 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLInputElement.formMethod 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLInputElement.formNoValidate 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLInputElement.formTarget 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLInputElement.invalid_event 📋Chrome3/8/2011 Firefox3/22/201114
api.HTMLInputElement.pattern 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLInputElement.placeholder 📋Chrome9/15/2009 Firefox3/22/2011553
api.HTMLInputElement.required 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLInputElement.setCustomValidity 📋Chrome1/25/2010 Firefox3/22/2011421
Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLInputElement.validationMessage 📋Chrome5/25/2010 Firefox3/22/2011301
api.HTMLInputElement.validity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLInputElement.willValidate 📋Chrome5/21/2009 Firefox3/22/2011670
api.HTMLLabelElement.control 📋Chrome9/2/2010 Firefox3/22/2011201
api.HTMLMediaElement.buffered 📋Chrome9/15/2009 Firefox3/22/2011553
api.HTMLMediaElement.preload 📋Chrome5/25/2010 Firefox3/22/2011301
api.HTMLObjectElement.checkValidity 📋Chrome3/8/2011 Firefox3/22/201114
api.HTMLObjectElement.setCustomValidity 📋Chrome3/8/2011 Firefox3/22/201114
Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLObjectElement.validationMessage 📋Chrome3/8/2011 Firefox3/22/201114
api.HTMLObjectElement.validity 📋Chrome3/8/2011 Firefox3/22/201114
api.HTMLObjectElement.willValidate 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLOptionsCollection.remove 📋Chrome12/11/2008 Firefox3/22/2011831
api.HTMLOutputElement 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.checkValidity 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.defaultValue 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.form 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.htmlFor 📋Chrome2/3/2011 Firefox3/22/201147
Chrome: Before Chrome 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Chrome Android: Before Chrome Android 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Quest Browser: Before Quest Browser 5.0, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Opera: Before Opera 37, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Opera Android: Before Opera Android 37, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.Samsung Internet: Before Samsung Internet 5.0, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.WebView Android: Before Chrome 50, this property returned the deprecated child DOMSettableTokenList instead of DOMTokenList.
api.HTMLOutputElement.name 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.setCustomValidity 📋Chrome2/3/2011 Firefox3/22/201147
Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLOutputElement.type 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.validationMessage 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.validity 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.value 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLOutputElement.willValidate 📋Chrome2/3/2011 Firefox3/22/201147
api.HTMLSelectElement.checkValidity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLSelectElement.required 📋Chrome3/8/2011 Firefox3/22/201114
api.HTMLSelectElement.setCustomValidity 📋Chrome1/25/2010 Firefox3/22/2011421
Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLSelectElement.validationMessage 📋Chrome5/25/2010 Firefox3/22/2011301
api.HTMLSelectElement.validity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLSelectElement.willValidate 📋Chrome5/21/2009 Firefox3/22/2011670
api.HTMLTextAreaElement.checkValidity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLTextAreaElement.maxLength 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLTextAreaElement.placeholder 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLTextAreaElement.required 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLTextAreaElement.setCustomValidity 📋Chrome1/25/2010 Firefox3/22/2011421
Chrome: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Chrome Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Quest Browser: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.Samsung Internet: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.WebView Android: This method only updates the validation error popup, not the tooltip that appears when hovering the mouse over the element, see bug 41380670.
api.HTMLTextAreaElement.validationMessage 📋Chrome5/25/2010 Firefox3/22/2011301
api.HTMLTextAreaElement.validity 📋Chrome1/25/2010 Firefox3/22/2011421
api.HTMLTextAreaElement.willValidate 📋Chrome5/21/2009 Firefox3/22/2011670
api.History.pushState 📋Chrome5/25/2010 Firefox3/22/2011301
Firefox: Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.Firefox for Android: Until Firefox for Android 5, the passed object is serialized using JSON. Starting in Firefox for Android 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.
api.History.replaceState 📋Chrome5/25/2010 Firefox3/22/2011301
Firefox: Until Firefox 5, the passed object is serialized using JSON. Starting in Firefox 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.Firefox for Android: Until Firefox for Android 5, the passed object is serialized using JSON. Starting in Firefox for Android 6, the object is serialized using the structured clone algorithm. This allows a wider variety of objects to be safely passed.
api.MediaError 📋Chrome9/15/2009 Firefox3/22/2011553
api.PopStateEvent 📋Chrome1/25/2010 Firefox3/22/2011421
api.PopStateEvent.state 📋Chrome1/25/2010 Firefox3/22/2011421
api.Range.getBoundingClientRect 📋Chrome1/25/2010 Firefox3/22/2011421
api.Range.getClientRects 📋Chrome1/25/2010 Firefox3/22/2011421
api.SVGAElement.href 📋Chrome12/11/2008 Firefox3/22/2011831
api.SVGAnimateElement 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimateTransformElement 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.beginElement 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.beginElementAt 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.endElement 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.endElementAt 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.getCurrentTime 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.getSimpleDuration 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.getStartTime 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGAnimationElement.targetElement 📋Chrome5/21/2009 Firefox3/22/2011670
api.SVGElement.load_event 📋Chrome12/11/2008 Firefox3/22/2011831
Firefox: See bug 620002 for implementation status of the standard load event.Firefox for Android: See bug 620002 for implementation status of the standard load event.
api.SVGSetElement 📋Chrome5/21/2009 Firefox3/22/2011670
api.Selection.modify 📋Chrome12/11/2008 Firefox3/22/2011831
api.TimeRanges 📋Chrome9/2/2010 Firefox3/22/2011201
api.TimeRanges.end 📋Chrome9/2/2010 Firefox3/22/2011201
api.TimeRanges.length 📋Chrome9/2/2010 Firefox3/22/2011201
api.TimeRanges.start 📋Chrome9/2/2010 Firefox3/22/2011201
api.TransitionEvent.elapsedTime 📋Chrome5/21/2009 Firefox3/22/2011670
api.TransitionEvent.propertyName 📋Chrome5/21/2009 Firefox3/22/2011670
api.TreeWalker 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.currentNode 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.filter 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.firstChild 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.lastChild 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.nextNode 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.nextSibling 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.parentNode 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.previousNode 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.previousSibling 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.root 📋Chrome12/11/2008 Firefox3/22/2011831
api.TreeWalker.whatToShow 📋Chrome12/11/2008 Firefox3/22/2011831
api.ValidityState 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.customError 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.patternMismatch 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.rangeOverflow 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.rangeUnderflow 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.stepMismatch 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.tooLong 📋Chrome1/25/2010 Firefox3/22/2011421
Edge: Not supported in the unlikely case of the value being initially set too long, and then changed by the user to a still incorrect state. Per caniuse.com.Firefox: Not supported in the unlikely case of the value being initially set too long, and then changed by the user to a still incorrect state. Per caniuse.com.
api.ValidityState.typeMismatch 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.valid 📋Chrome1/25/2010 Firefox3/22/2011421
api.ValidityState.valueMissing 📋Chrome1/25/2010 Firefox3/22/2011421
api.WebGLActiveInfo 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLActiveInfo.name 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLActiveInfo.size 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLActiveInfo.type 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLBuffer 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLFramebuffer 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLProgram 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLRenderbuffer 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLRenderingContext 📋Chrome2/3/2011 Firefox3/22/201147
Edge: To access the WebGL context, use experimental-webgl rather than the standard webgl identifier.Internet Explorer: To access the WebGL context, use experimental-webgl rather than the standard webgl identifier.
api.WebGLRenderingContext.activeTexture 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.attachShader 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.bindAttribLocation 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.bindBuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.bindFramebuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.bindRenderbuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.bindTexture 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.blendColor 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.blendEquation 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.blendEquationSeparate 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.blendFunc 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.blendFuncSeparate 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.bufferData 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.bufferSubData 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.canvas 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.checkFramebufferStatus 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.clear 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.clearColor 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.clearDepth 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.clearStencil 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.colorMask 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.compileShader 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.compressedTexImage2D 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.compressedTexSubImage2D 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.copyTexImage2D 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.copyTexSubImage2D 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.createBuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.createFramebuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.createProgram 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.createRenderbuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.createShader 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.createTexture 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.cullFace 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.deleteBuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.deleteFramebuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.deleteProgram 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.deleteRenderbuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.deleteShader 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.deleteTexture 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.depthFunc 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.depthMask 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.depthRange 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.detachShader 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.disable 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.disableVertexAttribArray 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.drawArrays 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.drawElements 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.drawingBufferHeight 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.drawingBufferWidth 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.enable 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.enableVertexAttribArray 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.finish 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.flush 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.framebufferRenderbuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.framebufferTexture2D 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.frontFace 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.generateMipmap 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getActiveAttrib 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getActiveUniform 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getAttachedShaders 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getAttribLocation 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getBufferParameter 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getContextAttributes 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getError 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getExtension 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getFramebufferAttachmentParameter 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getParameter 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getProgramInfoLog 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getProgramParameter 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getRenderbufferParameter 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getShaderInfoLog 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getShaderParameter 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getShaderPrecisionFormat 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getShaderSource 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getSupportedExtensions 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getTexParameter 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getUniform 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getUniformLocation 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getVertexAttrib 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.getVertexAttribOffset 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.hint 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isBuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isContextLost 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isEnabled 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isFramebuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isProgram 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isRenderbuffer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isShader 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.isTexture 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.lineWidth 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.linkProgram 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.pixelStorei 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.polygonOffset 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.readPixels 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.renderbufferStorage 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.sampleCoverage 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.scissor 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.shaderSource 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.stencilFunc 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.stencilFuncSeparate 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.stencilMask 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.stencilMaskSeparate 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.stencilOp 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.stencilOpSeparate 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.texImage2D 📋Chrome2/3/2011 Firefox3/22/201147
Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGLRenderingContext.texParameterf 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.texParameteri 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.texSubImage2D 📋Chrome2/3/2011 Firefox3/22/201147
Firefox for Android: Textures from video elements are not supported. See bug 1884282.
api.WebGLRenderingContext.uniform1f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform1fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform1i 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform1iv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform2f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform2fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform2i 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform2iv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform3f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform3fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform3i 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform3iv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform4f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform4fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform4i 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniform4iv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniformMatrix2fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniformMatrix3fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.uniformMatrix4fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.useProgram 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.validateProgram 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib1f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib1fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib2f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib2fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib3f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib3fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib4f 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttrib4fv 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.vertexAttribPointer 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLRenderingContext.viewport 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLShader 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLShaderPrecisionFormat 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLShaderPrecisionFormat.precision 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLShaderPrecisionFormat.rangeMax 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLShaderPrecisionFormat.rangeMin 📋Chrome2/3/2011 Firefox3/22/201147
api.WebGLTexture 📋Chrome3/8/2011 Firefox3/22/201114
api.WebGLUniformLocation 📋Chrome3/8/2011 Firefox3/22/201114
api.Window.popstate_event 📋Chrome5/25/2010 Firefox3/22/2011301
Chrome: Before version 34, Chrome would fire a popstate event on page load.Chrome Android: Before version 34, Chrome Android would fire a popstate event on page load.Quest Browser: Before version 5.0, Quest Browser would fire a popstate event on page load.Safari: Before version 10, Safari would fire a popstate event on page load.Safari on iOS: Before version 10, Safari on iOS would fire a popstate event on page load.Samsung Internet: Before version 2.0, Samsung Internet would fire a popstate event on page load.WebView Android: Before version 37, WebView Android would fire a popstate event on page load.WebView on iOS: Before version 10, WebView on iOS would fire a popstate event on page load.
api.WorkerGlobalScope.importScripts 📋Chrome1/25/2010 Firefox3/22/2011421
api.console 📋Chrome12/11/2008 Firefox3/22/2011831
Internet Explorer: In Internet Explorer 8 and 9, the console object is undefined when the developer tools are not open. This behavior was fixed in Internet Explorer 10.
api.console.error_static 📋Chrome12/11/2008 Firefox3/22/2011831
api.console.info_static 📋Chrome12/11/2008 Firefox3/22/2011831
Node.js: Alias for console.log
api.console.log_static 📋Chrome12/11/2008 Firefox3/22/2011831
api.console.warn_static 📋Chrome12/11/2008 Firefox3/22/2011831
Node.js: Alias for console.error
api.SVGElement.error_event 📋Firefox11/29/2005 Chrome3/8/20111925

2011/2

API First Browser Date Last Browser Date Days Notes
api.External.IsSearchProviderInstalled 📋Firefox10/24/2006 Chrome2/3/20111563
api.HTMLElement.click 📋Firefox6/17/2008 Chrome2/3/2011961
Chrome: Before Chrome 19, click() is only defined on buttons and inputs.Chrome Android: Before Chrome Android 25, click() is only defined on buttons and inputs.Firefox: Before Firefox 5, click() is only defined on buttons and inputs, and has no effect on text and file inputs.Firefox: Starting in Firefox 75, the click() function works even when the element is not attached to a DOM tree.Firefox for Android: Before Firefox 5, click() is only defined on buttons and inputs, and has no effect on text and file inputs.Firefox for Android: Starting in Firefox for Android 79, the click() function works even when the element is not attached to a DOM tree.Quest Browser: Before Quest Browser 5.0, click() is only defined on buttons and inputs.Samsung Internet: Before Samsung Internet 1.5, click() is only defined on buttons and inputs.WebView Android: Before WebView Android 4.4, click() is only defined on buttons and inputs.
api.HTMLElement.spellcheck 📋Firefox10/24/2006 Chrome2/3/20111563

2010/12

API First Browser Date Last Browser Date Days Notes
api.DOMTokenList 📋Firefox1/21/2010 Chrome12/2/2010315
api.DOMTokenList.add 📋Firefox1/21/2010 Chrome12/2/2010315
api.DOMTokenList.contains 📋Firefox1/21/2010 Chrome12/2/2010315
api.DOMTokenList.item 📋Firefox1/21/2010 Chrome12/2/2010315
api.DOMTokenList.length 📋Firefox1/21/2010 Chrome12/2/2010315
api.DOMTokenList.remove 📋Firefox1/21/2010 Chrome12/2/2010315
api.DOMTokenList.toString 📋Firefox1/21/2010 Chrome12/2/2010315
api.DOMTokenList.toggle 📋Firefox1/21/2010 Chrome12/2/2010315
api.HashChangeEvent 📋Firefox1/21/2010 Chrome12/2/2010315
api.Window.hashchange_event 📋Firefox1/21/2010 Chrome12/2/2010315
Chrome: A regular Event object is fired, rather than a HashChangeEvent object.

2010/10

API First Browser Date Last Browser Date Days Notes
api.SVGSVGElement.getElementById 📋Firefox11/29/2005 Chrome10/19/20101785

2010/9

API First Browser Date Last Browser Date Days Notes
api.FileReader 📋Firefox1/21/2010 Chrome9/2/2010224
Firefox: Before Firefox 4, Blob parameters were File parameters.
api.FileReader.FileReader 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.abort 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.abort_event 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.error 📋Firefox1/21/2010 Chrome9/2/2010224
Firefox: Before Firefox 13, the error property returned a FileError object.Firefox: From Firefox 13 to Firefox 58, the error property returned a DOMError object.Firefox: From Firefox 58, the error property returns a DOMException object.Firefox for Android: From Firefox 32 to Firefox 58, the error property returned a DOMError object.Firefox for Android: From Firefox 58, the error property returns a DOMException object.Internet Explorer: The error property returns a DOMError object.Safari: The error property returns a DOMError object.Safari on iOS: The error property returns a DOMError object.WebView on iOS: The error property returns a DOMError object.
api.FileReader.error_event 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.load_event 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.loadend_event 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.progress_event 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.readAsArrayBuffer 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.readAsBinaryString 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.readAsDataURL 📋Firefox1/21/2010 Chrome9/2/2010224
Firefox for Android: Using the camera in Android 8.x raises an exception. See bug 1511083.
api.FileReader.readAsText 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.readyState 📋Firefox1/21/2010 Chrome9/2/2010224
api.FileReader.result 📋Firefox1/21/2010 Chrome9/2/2010224
api.HTMLScriptElement.async 📋Firefox1/21/2010 Chrome9/2/2010224
api.SVGAnimatedBoolean 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGAnimatedBoolean.animVal 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGAnimatedBoolean.baseVal 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGAnimatedInteger 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGAnimatedInteger.animVal 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGAnimatedInteger.baseVal 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGAnimatedNumberList 📋Firefox11/29/2005 Chrome9/2/20101738
api.SVGAnimatedNumberList.animVal 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGAnimatedNumberList.baseVal 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.bias 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.divisor 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.edgeMode 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.height 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.in1 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.kernelMatrix 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.kernelUnitLengthX 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.kernelUnitLengthY 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.orderX 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.orderY 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.preserveAlpha 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.result 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.targetX 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.targetY 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.width 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.x 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGFEConvolveMatrixElement.y 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList 📋Firefox11/29/2005 Chrome9/2/20101738
api.SVGNumberList.appendItem 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList.clear 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList.getItem 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList.initialize 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList.insertItemBefore 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList.numberOfItems 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList.removeItem 📋Firefox6/17/2008 Chrome9/2/2010807
api.SVGNumberList.replaceItem 📋Firefox6/17/2008 Chrome9/2/2010807
api.XMLHttpRequest.send.body_FormData_type Firefox10/24/2006 Chrome9/2/20101409

2010/5

API First Browser Date Last Browser Date Days Notes
api.Geolocation 📋Firefox6/30/2009 Chrome5/25/2010329
Firefox: GPSD (GPS daemon) support added in Firefox 3.6. WiFi-based location is provided by Google (privacy) or a custom provider (MLS instructions).
api.Geolocation.clearWatch 📋Firefox6/30/2009 Chrome5/25/2010329
api.Geolocation.getCurrentPosition 📋Firefox6/30/2009 Chrome5/25/2010329
api.Geolocation.watchPosition 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationCoordinates.accuracy 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationCoordinates.altitude 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationCoordinates.altitudeAccuracy 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationCoordinates.heading 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationCoordinates.latitude 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationCoordinates.longitude 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationCoordinates.speed 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationPosition.coords 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationPosition.timestamp 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationPositionError.code 📋Firefox6/30/2009 Chrome5/25/2010329
api.GeolocationPositionError.message 📋Firefox6/30/2009 Chrome5/25/2010329
api.Navigator.geolocation 📋Firefox6/30/2009 Chrome5/25/2010329
api.SVGAnimatedPreserveAspectRatio 📋Firefox11/29/2005 Chrome5/25/20101638
api.SVGComponentTransferFunctionElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGComponentTransferFunctionElement.amplitude 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGComponentTransferFunctionElement.exponent 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGComponentTransferFunctionElement.intercept 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGComponentTransferFunctionElement.offset 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGComponentTransferFunctionElement.slope 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGComponentTransferFunctionElement.tableValues 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGComponentTransferFunctionElement.type 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.in2 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.mode 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEBlendElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.type 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.values 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEColorMatrixElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEComponentTransferElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEComponentTransferElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.in2 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.k1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.k2 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.k3 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.k4 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.operator 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFECompositeElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.diffuseConstant 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.kernelUnitLengthX 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.kernelUnitLengthY 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.surfaceScale 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDiffuseLightingElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.in2 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.scale 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.xChannelSelector 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDisplacementMapElement.yChannelSelector 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDistantLightElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDistantLightElement.azimuth 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEDistantLightElement.elevation 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEFloodElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEFuncAElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEFuncBElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEFuncGElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEFuncRElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEGaussianBlurElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEGaussianBlurElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEGaussianBlurElement.setStdDeviation 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEGaussianBlurElement.stdDeviationX 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEGaussianBlurElement.stdDeviationY 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEImageElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEImageElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEImageElement.href 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEImageElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEImageElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEImageElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEImageElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeNodeElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMergeNodeElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.operator 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.radiusX 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.radiusY 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEMorphologyElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.dx 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.dy 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEOffsetElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEPointLightElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEPointLightElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEPointLightElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFEPointLightElement.z 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.specularConstant 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.specularExponent 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.surfaceScale 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpecularLightingElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.limitingConeAngle 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.pointsAtX 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.pointsAtY 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.pointsAtZ 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.specularExponent 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFESpotLightElement.z 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETileElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETileElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETileElement.in1 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETileElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETileElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETileElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETileElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.baseFrequencyX 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.baseFrequencyY 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.numOctaves 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.result 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.seed 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.stitchTiles 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.type 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFETurbulenceElement.y 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement.filterUnits 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement.height 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement.href 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement.primitiveUnits 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement.width 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement.x 📋Firefox6/17/2008 Chrome5/25/2010707
api.SVGFilterElement.y 📋Firefox6/17/2008 Chrome5/25/2010707

2010/1

API First Browser Date Last Browser Date Days Notes
api.DedicatedWorkerGlobalScope 📋Firefox6/30/2009 Chrome1/25/2010209
api.DedicatedWorkerGlobalScope.close 📋Firefox6/30/2009 Chrome1/25/2010209
api.DedicatedWorkerGlobalScope.message_event 📋Firefox6/30/2009 Chrome1/25/2010209
api.DedicatedWorkerGlobalScope.postMessage 📋Firefox6/30/2009 Chrome1/25/2010209
Deno: The message parameter does not support cloning Blob values.Deno: The message parameter does not support cloning Blob values.Deno: The transfer parameter does not accept ArrayBuffer items. Passing an ArrayBuffer results in an error being thrown.Deno: The message parameter does not support cloning SharedArrayBuffer or Blob values.Deno: The transfer parameter is ignored.Deno: Data passed in the message parameter is serialized with JSON, not the structured clone algorithm.Deno: The transfer parameter is ignored.
api.EventTarget.dispatchEvent 📋Firefox10/24/2006 Chrome1/25/20101189
Internet Explorer: Older versions of IE supported an equivalent, proprietary EventTarget.fireEvent() method.
api.HTMLAudioElement.Audio 📋Firefox6/30/2009 Chrome1/25/2010209
api.HTMLElement.draggable 📋Firefox10/24/2006 Chrome1/25/20101189
api.HTMLTextAreaElement.textLength 📋Firefox11/9/2004 Chrome1/25/20101903
api.MessageEvent.ports 📋Firefox6/17/2008 Chrome1/25/2010587
api.PageTransitionEvent 📋Firefox11/29/2005 Chrome1/25/20101518
api.Storage 📋Firefox6/30/2009 Chrome1/25/2010209
api.Storage.clear 📋Firefox6/30/2009 Chrome1/25/2010209
api.Storage.getItem 📋Firefox6/30/2009 Chrome1/25/2010209
api.Storage.key 📋Firefox6/30/2009 Chrome1/25/2010209
api.Storage.length 📋Firefox6/30/2009 Chrome1/25/2010209
api.Storage.removeItem 📋Firefox6/30/2009 Chrome1/25/2010209
api.Storage.setItem 📋Firefox6/30/2009 Chrome1/25/2010209
api.Window.localStorage 📋Firefox6/30/2009 Chrome1/25/2010209
Deno: The key used for the Web Storage bucket is based on various factors. See the Deno manual.
api.Window.sessionStorage 📋Firefox10/24/2006 Chrome1/25/20101189
api.Worker.Worker 📋Firefox6/30/2009 Chrome1/25/2010209
Node.js: Takes entirely different options parameters.
api.Worker.error_event 📋Firefox6/30/2009 Chrome1/25/2010209
Node.js: Supports the event, but only via Node EventEmitter.
api.Worker.message_event 📋Firefox6/30/2009 Chrome1/25/2010209
Node.js: Supports the event, but only via Node EventEmitter.
api.WorkerGlobalScope 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerGlobalScope.error_event 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerGlobalScope.location 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerGlobalScope.navigator 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerGlobalScope.self 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.hash 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.host 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.hostname 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.href 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.pathname 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.port 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.protocol 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.search 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerLocation.toString 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerNavigator 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerNavigator.appCodeName 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerNavigator.appName 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerNavigator.appVersion 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerNavigator.language 📋Firefox6/30/2009 Chrome1/25/2010209
Firefox: Before Firefox 4, this property's value was also part of the user agent string, as reported by navigator.userAgent. Starting in Firefox 5, this property's value is based on the value of the Accept-Language HTTP header.Internet Explorer: Closest available (non-standard) properties are userLanguage and browserLanguage.
api.WorkerNavigator.onLine 📋Firefox6/30/2009 Chrome1/25/2010209
Firefox: Since Firefox 4 the browser returns true when 'Work Offline' mode is disabled and false when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return false).Opera: From Opera 11.1 until Opera 12.1, the browser returns true when 'Work Offline' mode is disabled and false when it is enabled, regardless of actual connectivity.Opera Android: From Opera 11.1 until Opera 12.1, the browser returns true when 'Work Offline' mode is disabled and false when it is enabled, regardless of actual connectivity.WebView Android: Can incorrectly return true, see bug 41369933.
api.WorkerNavigator.platform 📋Firefox6/30/2009 Chrome1/25/2010209
Firefox: Before Firefox 69, platform would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.Firefox: You can override the value returned by platform by setting the preference general.platform.override to the string you wish to be returned instead.
api.WorkerNavigator.product 📋Firefox6/30/2009 Chrome1/25/2010209
api.WorkerNavigator.userAgent 📋Firefox6/30/2009 Chrome1/25/2010209
api.XMLHttpRequest.worker_support Firefox6/30/2009 Chrome1/25/2010209
api.atob 📋Firefox11/9/2004 Chrome1/25/20101903
api.btoa 📋Firefox11/9/2004 Chrome1/25/20101903
api.DataTransfer.files 📋Chrome9/15/2009 Firefox1/21/2010128
api.Document.readyState 📋Chrome12/11/2008 Firefox1/21/2010406
Internet Explorer: Internet Explorer 9 and 10 have bugs where the 'interactive' state can be fired too early before the document has finished parsing.Internet Explorer: Only supports 'complete'.Opera: Opera Presto fires 'complete' late after the 'load' event (in an incorrect order as per HTML5 standard specification).Opera Android: Opera Presto fires 'complete' late after the 'load' event (in an incorrect order as per HTML5 standard specification).
api.HTMLInputElement.indeterminate 📋Chrome12/11/2008 Firefox1/21/2010406
api.HTMLInputElement.multiple 📋Chrome5/21/2009 Firefox1/21/2010245
api.HTMLVideoElement.poster 📋Chrome9/15/2009 Firefox1/21/2010128

2009/9

API First Browser Date Last Browser Date Days Notes
api.DataTransfer 📋Firefox6/30/2009 Chrome9/15/200977
Firefox: As of Firefox 52, the DataTransfer.types property returns a frozen array of DOMStrings as per spec, rather than a DOMStringList.Firefox for Android: As of Firefox for Android 52, the DataTransfer.types property returns a frozen array of DOMStrings as per spec, rather than a DOMStringList.
api.DataTransfer.clearData 📋Firefox6/30/2009 Chrome9/15/200977
api.DataTransfer.dropEffect 📋Firefox6/30/2009 Chrome9/15/200977
api.DataTransfer.effectAllowed 📋Firefox6/30/2009 Chrome9/15/200977
api.DataTransfer.getData 📋Firefox6/30/2009 Chrome9/15/200977
api.DataTransfer.setData 📋Firefox6/30/2009 Chrome9/15/200977
api.DataTransfer.setDragImage 📋Firefox6/30/2009 Chrome9/15/200977
api.DataTransfer.types 📋Firefox6/30/2009 Chrome9/15/200977
Internet Explorer: The property returns a DOMStringList.Internet Explorer: Text is returned instead of text/plainOpera: As of Opera 12, Text is returned instead of text/plain
api.HTMLAudioElement 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.autoplay 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.canPlayType 📋Firefox6/30/2009 Chrome9/15/200977
Chrome: codecs string can contain any subset of optional parameters (should be all or none).Chrome: Errors if codecs string contains unexpected characters (should evaluate string up to character).Chrome Android: codecs string can contain any subset of optional parameters (should be all or none).Chrome Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).Edge: codecs string can contain any subset of optional parameters (should be all or none).Edge: Errors if codecs string contains unexpected characters (should evaluate string up to character).Firefox: Before Firefox 28, canPlayType() returned probably when asked about WebM audio or video files without the codecs parameter. Since multiple codecs are supported, this is not enough information to determine if a file can be played, so maybe is now correctly returned.Firefox: Before Firefox 101, canPlayType() ignored codecs parameter options for av01 codecs (treating them as av1).Firefox for Android: Before Firefox for Android 28, canPlayType() returned probably when asked about WebM audio or video files without the codecs parameter. Since multiple codecs are supported, this is not enough information to determine if a file can be played, so maybe is now correctly returned.Firefox for Android: Before Firefox for Android 101, canPlayType() ignored codecs parameter options for av01 codecs (treating them as av1).Quest Browser: codecs string can contain any subset of optional parameters (should be all or none).Quest Browser: Errors if codecs string contains unexpected characters (should evaluate string up to character).Opera: codecs string can contain any subset of optional parameters (should be all or none).Opera: Errors if codecs string contains unexpected characters (should evaluate string up to character).Opera Android: codecs string can contain any subset of optional parameters (should be all or none).Opera Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).Samsung Internet: codecs string can contain any subset of optional parameters (should be all or none).Samsung Internet: Errors if codecs string contains unexpected characters (should evaluate string up to character).WebView Android: codecs string can contain any subset of optional parameters (should be all or none).WebView Android: Errors if codecs string contains unexpected characters (should evaluate string up to character).
api.HTMLMediaElement.canplay_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.canplaythrough_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.controls 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.currentSrc 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.currentTime 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.duration 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.durationchange_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.emptied_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.ended 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.ended_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.error 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.load 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.loadeddata_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.loadedmetadata_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.muted 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.networkState 📋Firefox6/30/2009 Chrome9/15/200977
Firefox: The NETWORK_LOADED state was removed to align with the HTML spec in Firefox 4.
api.HTMLMediaElement.pause 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.pause_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.paused 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.play 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.play_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.playing_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.ratechange_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.readyState 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.seeked_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.seeking 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.seeking_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.src 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.stalled_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.suspend_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.timeupdate_event 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLMediaElement.volume 📋Firefox6/30/2009 Chrome9/15/200977
Safari on iOS: volume returns a value and is writable; however, the value is always 1, and setting a value has no effect on the volume of the media object.WebView on iOS: volume returns a value and is writable; however, the value is always 1, and setting a value has no effect on the volume of the media object.
api.HTMLSourceElement 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLSourceElement.src 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLSourceElement.type 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLVideoElement 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLVideoElement.height 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLVideoElement.resize_event 📋Firefox6/30/2009 Chrome9/15/200977
Edge: The onresize event handler property is not supported.Internet Explorer: The onresize event handler property is not supported.
api.HTMLVideoElement.videoHeight 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLVideoElement.videoWidth 📋Firefox6/30/2009 Chrome9/15/200977
api.HTMLVideoElement.width 📋Firefox6/30/2009 Chrome9/15/200977
api.MediaError.code 📋Firefox6/30/2009 Chrome9/15/200977
api.XMLHttpRequest.withCredentials 📋Firefox6/30/2009 Chrome9/15/200977
Firefox: Starting with Firefox 11, it's no longer supported to use the withCredentials attribute when performing synchronous requests. Attempting to do so throws an NS_ERROR_DOM_INVALID_ACCESS_ERR exception.Firefox for Android: Starting with Firefox for Android 14, it's no longer supported to use the withCredentials attribute when performing synchronous requests. Attempting to do so throws an NS_ERROR_DOM_INVALID_ACCESS_ERR exception.Internet Explorer: Internet Explorer versions 8 and 9 supported cross-domain requests (CORS) using XDomainRequest.
api.clearInterval.worker_support Firefox6/30/2009 Chrome9/15/200977
api.clearTimeout.worker_support Firefox6/30/2009 Chrome9/15/200977
api.setInterval.worker_support Firefox6/30/2009 Chrome9/15/200977
api.setTimeout.worker_support Firefox6/30/2009 Chrome9/15/200977

2009/6

API First Browser Date Last Browser Date Days Notes
api.CSSFontFaceRule 📋Chrome12/11/2008 Firefox6/30/2009201
api.CSSFontFaceRule.style 📋Chrome12/11/2008 Firefox6/30/2009201
api.CanvasRenderingContext2D.createImageData 📋Chrome5/21/2009 Firefox6/30/200940
api.CanvasRenderingContext2D.fillText 📋Chrome5/21/2009 Firefox6/30/200940
api.CanvasRenderingContext2D.font 📋Chrome5/21/2009 Firefox6/30/200940
Safari: The font-weight can be set, but is not reflected back (see bug 284115).Safari on iOS: The font-weight can be set, but is not reflected back (see bug 284115).WebView on iOS: The font-weight can be set, but is not reflected back (see bug 284115).
api.CanvasRenderingContext2D.measureText 📋Chrome5/21/2009 Firefox6/30/200940
api.CanvasRenderingContext2D.strokeText 📋Chrome5/21/2009 Firefox6/30/200940
api.CanvasRenderingContext2D.textAlign 📋Chrome5/21/2009 Firefox6/30/200940
api.CanvasRenderingContext2D.textBaseline 📋Chrome5/21/2009 Firefox6/30/200940
api.Document.querySelector 📋Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: querySelectorAll() is supported, but only for CSS 2.1 selectors.
api.Document.querySelectorAll 📋Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: querySelectorAll() is supported, but only for CSS 2.1 selectors.
api.DocumentFragment.querySelector 📋Chrome5/21/2009 Firefox6/30/200940
Internet Explorer: querySelectorAll() is supported, but only for CSS 2.1 selectors.
api.DocumentFragment.querySelectorAll 📋Chrome5/21/2009 Firefox6/30/200940
Internet Explorer: querySelectorAll() is supported, but only for CSS 2.1 selectors.
api.Element.childElementCount 📋Chrome5/21/2009 Firefox6/30/200940
api.Element.children 📋Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: Also includes non-standard HTMLCommentElement nodes.
api.Element.firstElementChild 📋Chrome5/21/2009 Firefox6/30/200940
api.Element.lastElementChild 📋Chrome5/21/2009 Firefox6/30/200940
api.Element.nextElementSibling 📋Chrome5/21/2009 Firefox6/30/200940
api.Element.previousElementSibling 📋Chrome5/21/2009 Firefox6/30/200940
api.Element.querySelector 📋Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: querySelector() is supported, but only for CSS 2.1 selectors.
api.Element.querySelectorAll 📋Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: querySelectorAll() is supported, but only for CSS 2.1 selectors.
api.HTMLIFrameElement.getSVGDocument 📋Chrome12/11/2008 Firefox6/30/2009201
api.HTMLObjectElement.getSVGDocument 📋Chrome12/11/2008 Firefox6/30/2009201
api.HTMLScriptElement.defer 📋Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: Before Internet Explorer 10, it implemented defer by a proprietary specification. Since version 10 it conforms to the W3C specification.
api.ImageData 📋Chrome12/11/2008 Firefox6/30/2009201
api.ImageData.data 📋Chrome12/11/2008 Firefox6/30/2009201
api.ImageData.height 📋Chrome12/11/2008 Firefox6/30/2009201
api.ImageData.width 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator.detach 📋Chrome12/11/2008 Firefox6/30/2009201
Chrome: Since Chrome 45, this method does nothing, as specified. See bug 40362826.Chrome Android: Since Chrome Android 45, this method does nothing, as specified. See bug 40362826.Firefox: Since Firefox 22, this method does nothing, as specified. See bug 823549.Firefox for Android: Since Firefox for Android 22, this method does nothing, as specified. See bug 823549.Quest Browser: Since Quest Browser 5.0, this method does nothing, as specified. See bug 40362826.Opera: Since Opera 32, this method does nothing, as specified. See bug 40362826.Opera Android: Since Opera Android 32, this method does nothing, as specified. See bug 40362826.Safari: Since Safari 10, this method does nothing, as specified. See bug 148454.Safari on iOS: Since Safari on iOS 10, this method does nothing, as specified. See bug 148454.Samsung Internet: Since Samsung Internet 5.0, this method does nothing, as specified. See bug 40362826.WebView Android: Since WebView Android 45, this method does nothing, as specified. See bug 40362826.WebView on iOS: Since WebView on iOS 10, this method does nothing, as specified. See bug 148454.
api.NodeIterator.filter 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator.nextNode 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator.pointerBeforeReferenceNode 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator.previousNode 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator.referenceNode 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator.root 📋Chrome12/11/2008 Firefox6/30/2009201
api.NodeIterator.whatToShow 📋Chrome12/11/2008 Firefox6/30/2009201
api.ProgressEvent 📋Chrome12/11/2008 Firefox6/30/2009201
api.ProgressEvent.lengthComputable 📋Chrome12/11/2008 Firefox6/30/2009201
api.ProgressEvent.loaded 📋Chrome12/11/2008 Firefox6/30/2009201
api.ProgressEvent.total 📋Chrome12/11/2008 Firefox6/30/2009201
api.Text.wholeText 📋Chrome5/21/2009 Firefox6/30/200940
api.Worker 📋Chrome5/21/2009 Firefox6/30/200940
Node.js: Inherits from a Node EventEmitter instead of DOM EventTarget.Node.js: Also supports CommonJS modules, enabled for files ending with .cjs and for files ending with .js when the nearest parent package.json file contains a top-level field "type" with a value not of "commonjs".Node.js: Available as a part of the worker_threads module.
api.Worker.postMessage 📋Chrome5/21/2009 Firefox6/30/200940
Deno: The message parameter does not support cloning Blob values.Deno: The message parameter does not support cloning Blob values.Deno: The transfer parameter does not accept ArrayBuffer items. Passing an ArrayBuffer results in an error being thrown.Deno: The message parameter does not support SharedArrayBuffer.Deno: The transfer parameter is not supported, and results in an error being thrown.Deno: Data passed in the message parameter is serialized with JSON, not the structured clone algorithm.Deno: The transfer parameter is not supported, and results in an error being thrown.Internet Explorer: Internet Explorer does not support Transferable objects.Node.js: Only accepts an array of transfer objects as the second parameter, not an options object with a transfer property.Node.js: Only supports transferring ArrayBuffer and MessagePort objects.
api.Worker.terminate 📋Chrome5/21/2009 Firefox6/30/200940
Node.js: Returns a Promise.Node.js: Takes an optional callback parameter to be executed when the worker has terminated.
api.XMLHttpRequest.abort_event 📋Chrome12/11/2008 Firefox6/30/2009201
api.XMLHttpRequest.loadstart_event 📋Chrome12/11/2008 Firefox6/30/2009201
api.XMLHttpRequest.upload 📋Chrome5/21/2009 Firefox6/30/200940
api.XMLHttpRequestUpload 📋Chrome5/21/2009 Firefox6/30/200940
api.XMLHttpRequestUpload.abort_event 📋Chrome5/21/2009 Firefox6/30/200940
api.XMLHttpRequestUpload.error_event 📋Chrome5/21/2009 Firefox6/30/200940
api.XMLHttpRequestUpload.load_event 📋Chrome5/21/2009 Firefox6/30/200940
api.XMLHttpRequestUpload.loadstart_event 📋Chrome5/21/2009 Firefox6/30/200940
api.XMLHttpRequestUpload.progress_event 📋Chrome5/21/2009 Firefox6/30/200940

2009/5

API First Browser Date Last Browser Date Days Notes
api.CanvasRenderingContext2D.getImageData 📋Firefox10/24/2006 Chrome5/21/2009940
Firefox: Since Firefox 5, getImageData now correctly accepts rectangles that extend beyond the bounds of the canvas; pixels outside the canvas are returned as transparent black and now also returns at least one pixel's worth of image data if a rectangle smaller than one pixel is specified.Firefox for Android: Since Firefox for Android 5, getImageData now correctly accepts rectangles that extend beyond the bounds of the canvas; pixels outside the canvas are returned as transparent black and now also returns at least one pixel's worth of image data if a rectangle smaller than one pixel is specified.
api.CanvasRenderingContext2D.putImageData 📋Firefox10/24/2006 Chrome5/21/2009940
api.CanvasRenderingContext2D.setTransform 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRect.height 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRect.width 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectList.item 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectList.length 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectReadOnly.bottom 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectReadOnly.height 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectReadOnly.left 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectReadOnly.right 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectReadOnly.top 📋Firefox6/17/2008 Chrome5/21/2009338
api.DOMRectReadOnly.width 📋Firefox6/17/2008 Chrome5/21/2009338
api.Document.activeElement 📋Firefox6/17/2008 Chrome5/21/2009338
Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Element.getBoundingClientRect 📋Firefox6/17/2008 Chrome5/21/2009338
Safari on iOS: Safari for iOS will modify the effective viewport based on the user zoom. This results in incorrect values whenever the user has zoomed.WebView on iOS: Safari for iOS will modify the effective viewport based on the user zoom. This results in incorrect values whenever the user has zoomed.
api.Element.getClientRects 📋Firefox6/17/2008 Chrome5/21/2009338
api.FileList 📋Firefox6/17/2008 Chrome5/21/2009338
api.FileList.item 📋Firefox6/17/2008 Chrome5/21/2009338
api.FileList.length 📋Firefox6/17/2008 Chrome5/21/2009338
api.HTMLCanvasElement.toDataURL 📋Firefox10/24/2006 Chrome5/21/2009940
api.HTMLInputElement.files 📋Firefox6/17/2008 Chrome5/21/2009338
Internet Explorer: This property is read-only.
api.MessageEvent 📋Firefox6/17/2008 Chrome5/21/2009338
api.MessageEvent.data 📋Firefox6/17/2008 Chrome5/21/2009338
api.MessageEvent.initMessageEvent 📋Firefox6/17/2008 Chrome5/21/2009338
api.MessageEvent.lastEventId 📋Firefox6/17/2008 Chrome5/21/2009338
api.MessageEvent.origin 📋Firefox6/17/2008 Chrome5/21/2009338
api.MessageEvent.source 📋Firefox6/17/2008 Chrome5/21/2009338
api.Navigator.onLine 📋Firefox11/29/2005 Chrome5/21/20091269
Chrome: Earlier versions of Chrome incorrectly return true when a tab is first opened, but it starts reporting the correct connectivity status after the first network event. Windows: 11, macOS: 14, ChromeOS: 13, Linux: Always returns true. For history, see bug 40530968.Firefox: Since Firefox 4 the browser returns true when 'Work Offline' mode is disabled and false when it is enabled, regardless of actual connectivity. Since Firefox 41, on OS X and Windows, the returned values follow the actual network connectivity, unless 'Work offline' mode is selected (where it will always return false).Internet Explorer: in Internet Explorer 8 'online' and 'offline' events are raised on the document.body; under IE 9 they are raised on both document.body and window.Opera: From Opera 11.1 until Opera 12.1, the browser returns true when 'Work Offline' mode is disabled and false when it is enabled, regardless of actual connectivity.Opera Android: From Opera 11.1 until Opera 12.1, the browser returns true when 'Work Offline' mode is disabled and false when it is enabled, regardless of actual connectivity.WebView Android: Can incorrectly return true, see bug 41369933.
api.Node.compareDocumentPosition 📋Firefox11/9/2004 Chrome5/21/20091654
Internet Explorer: Only supports contains for elements
api.TextMetrics 📋Firefox11/29/2005 Chrome5/21/20091269
api.TextMetrics.width 📋Firefox11/29/2005 Chrome5/21/20091269
api.Window.postMessage 📋Firefox6/17/2008 Chrome5/21/2009338
Firefox: Firefox 8 and up supports sending File and FileList objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.Firefox: Before Firefox 6, the message parameter must be a string. Since Firefox 6, the message parameter is serialized using the structured clone algorithm. This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself.Firefox for Android: Firefox for Android 8 and up supports sending File and FileList objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.Firefox for Android: Before Firefox for Android 6, the message parameter must be a string. Since Firefox for Android 6, the message parameter is serialized using the structured clone algorithm. This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself.Internet Explorer: IE10 had an important limitation: see this article for details.Internet Explorer: Support only for <frame> and <iframe>.

2008/12

API First Browser Date Last Browser Date Days Notes
api.Attr 📋Firefox11/9/2004 Chrome12/11/20081493
api.Attr.localName 📋Firefox11/9/2004 Chrome12/11/20081493
api.Attr.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.Attr.namespaceURI 📋Firefox11/9/2004 Chrome12/11/20081493
api.Attr.ownerElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.Attr.prefix 📋Firefox11/9/2004 Chrome12/11/20081493
api.Attr.specified 📋Firefox11/9/2004 Chrome12/11/20081493
api.Attr.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.BarProp 📋Firefox11/9/2004 Chrome12/11/20081493
api.BarProp.visible 📋Firefox11/9/2004 Chrome12/11/20081493
api.CDATASection 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSImportRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSImportRule.href 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSImportRule.media 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSImportRule.styleSheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSMediaRule 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 20, conditionText could not be set.Firefox for Android: Before Firefox for Android 20, conditionText could not be set.
api.CSSMediaRule.media 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSRule.cssText 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: The property normalizes rules and does not return the original verbatim rule text. For example, border-width: 1px; border-style:solid; border-color:white; returns border: 1px solid white;.
api.CSSRule.parentRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSRule.parentStyleSheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSRule.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSRuleList 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSRuleList.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSRuleList.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.cssText 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.getPropertyPriority 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.getPropertyValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.parentRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.removeProperty 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleDeclaration.setProperty 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleRule.selectorText 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleRule.style 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleSheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleSheet.cssRules 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleSheet.deleteRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleSheet.insertRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CSSStyleSheet.ownerRule 📋Firefox11/9/2004 Chrome12/11/20081493
api.CanvasGradient 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Before Firefox 5.0, specifying non-finite values when adding color stops through a call to addColorStop() incorrectly throws SYNTAX_ERR instead of INDEX_SIZE_ERR.
api.CanvasGradient.addColorStop 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasPattern 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.arc 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.arcTo 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.beginPath 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.bezierCurveTo 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.canvas 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.clearRect 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.clip 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.closePath 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.createLinearGradient 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.createPattern 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: The repetition values repeat-x and repeat-y are not supported with fill(), only with fillRect(), see bug 468358.Firefox for Android: The repetition values repeat-x and repeat-y are not supported with fill(), only with fillRect(), see bug 468358.
api.CanvasRenderingContext2D.createRadialGradient 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.drawImage 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.fill 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.fillRect 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.fillStyle 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.globalAlpha 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.globalCompositeOperation 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.isPointInPath 📋Firefox10/24/2006 Chrome12/11/2008779
api.CanvasRenderingContext2D.lineCap 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.lineJoin 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.lineTo 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.lineWidth 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.miterLimit 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.moveTo 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.quadraticCurveTo 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.rect 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.restore 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.rotate 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.save 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.scale 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.shadowBlur 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.shadowColor 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.shadowOffsetX 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.shadowOffsetY 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.stroke 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.strokeRect 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.strokeStyle 📋Firefox11/29/2005 Chrome12/11/20081108
api.CanvasRenderingContext2D.transform 📋Firefox6/17/2008 Chrome12/11/2008177
api.CanvasRenderingContext2D.translate 📋Firefox11/29/2005 Chrome12/11/20081108
api.CharacterData 📋Firefox11/9/2004 Chrome12/11/20081493
api.CharacterData.appendData 📋Firefox11/9/2004 Chrome12/11/20081493
api.CharacterData.data 📋Firefox11/9/2004 Chrome12/11/20081493
api.CharacterData.deleteData 📋Firefox11/9/2004 Chrome12/11/20081493
api.CharacterData.insertData 📋Firefox11/9/2004 Chrome12/11/20081493
api.CharacterData.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.CharacterData.replaceData 📋Firefox11/9/2004 Chrome12/11/20081493
api.CharacterData.substringData 📋Firefox11/9/2004 Chrome12/11/20081493
api.Comment 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMException 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMException.code 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMException.message 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMException.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMImplementation 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMImplementation.createDocument 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMImplementation.createDocumentType 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMImplementation.hasFeature 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Since Firefox 19, hasFeature() mostly returns true.
api.DOMParser 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMParser.DOMParser 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMParser.parseFromString 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMParser.parseFromString.xml Firefox11/9/2004 Chrome12/11/20081493
api.DOMStringList 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMStringList.contains 📋Firefox11/29/2005 Chrome12/11/20081108
api.DOMStringList.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.DOMStringList.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.DOMContentLoaded_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.adoptNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.characterSet 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: charset alias was made read-only in Chrome 45.Chrome Android: charset alias was made read-only in Chrome Android 45.Quest Browser: charset alias was made read-only in Quest Browser 5.0.Opera: charset alias was made read-only in Opera 45.Opera Android: charset alias was made read-only in Opera 45.Samsung Internet: charset alias was made read-only in Samsung Internet 5.0.WebView Android: charset alias was made read-only in WebView 45.
api.Document.createAttributeNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createCDATASection 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createComment 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createDocumentFragment 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createElement 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Doesn't conform to the DOM spec for XUL and XHTML documents: localName and namespaceURI are not set to null on the created element.
api.Document.createElementNS 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Doesn't conform to the DOM spec for XUL and XHTML documents: localName and namespaceURI are not set to null on the created element.
api.Document.createEvent 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: From version 67, creating touch events using this method is no longer supported.
api.Document.createExpression 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createNSResolver 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createNodeIterator 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createProcessingInstruction 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createRange 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createTextNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.createTreeWalker 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.defaultView 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.doctype 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.documentElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.documentURI 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.elementFromPoint 📋Firefox6/17/2008 Chrome12/11/2008177
Chrome: Before Chrome 66, this method returned null when the element was a child of a host node. See bug 40537452.Chrome Android: Before Chrome Android 66, this method returned null when the element was a child of a host node. See bug 40537452.Quest Browser: Before Quest Browser 5.0, this method returned null when the element was a child of a host node. See bug 40537452.Opera: Before Opera 53, this method returned null when the element was a child of a host node. See bug 40537452.Opera Android: Before Opera Android 47, this method returned null when the element was a child of a host node. See bug 40537452.Samsung Internet: Before Samsung Internet 9.0, this method returned null when the element was a child of a host node. See bug 40537452.WebView Android: Before WebView Android 66, this method returned null when the element was a child of a host node. See bug 40537452.
api.Document.evaluate 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.execCommand.insertHTML Firefox11/9/2004 Chrome12/11/20081493
api.Document.getElementById 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.getElementsByClassName 📋Firefox6/17/2008 Chrome12/11/2008177
api.Document.getElementsByTagName 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.getElementsByTagNameNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.implementation 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.importNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.lastModified 📋Firefox11/9/2004 Chrome12/11/20081493
Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.location 📋Firefox11/9/2004 Chrome12/11/20081493
Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.Document.referrer 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.styleSheets 📋Firefox11/9/2004 Chrome12/11/20081493
api.Document.title 📋Firefox11/9/2004 Chrome12/11/20081493
Safari: Only supported for HTMLDocument and XMLDocument, but not SVGDocument objects.Safari: Only supported for HTMLDocument, not all Document objects.Safari on iOS: Only supported for HTMLDocument and XMLDocument, but not SVGDocument objects.Safari on iOS: Only supported for HTMLDocument, not all Document objects.WebView on iOS: Only supported for HTMLDocument and XMLDocument, but not SVGDocument objects.WebView on iOS: Only supported for HTMLDocument, not all Document objects.
api.DocumentFragment 📋Firefox11/9/2004 Chrome12/11/20081493
api.DocumentType 📋Firefox11/9/2004 Chrome12/11/20081493
api.DocumentType.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.DocumentType.publicId 📋Firefox11/9/2004 Chrome12/11/20081493
api.DocumentType.systemId 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.DOMActivate_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.attributes 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.clientHeight 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.clientLeft 📋Firefox6/17/2008 Chrome12/11/2008177
api.Element.clientTop 📋Firefox6/17/2008 Chrome12/11/2008177
api.Element.clientWidth 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.getAttribute 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.getAttributeNS 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting in Firefox 13, null is always returned instead of the empty string, as per the DOM4 specification. Previously, there were cases in which an empty string could be returned.Firefox for Android: Starting in Firefox for Android 14, null is always returned instead of the empty string, as per the DOM4 specification. Previously, there were cases in which an empty string could be returned.
api.Element.getAttributeNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.getAttributeNodeNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.getElementsByClassName 📋Firefox6/17/2008 Chrome12/11/2008177
Edge: Only supported for HTMLElement, not all Element objects, such as SVGElement.Firefox: Before Firefox 19, this method was returning a NodeList; it was then changed to reflect the change in the spec.Internet Explorer: Only supported for HTMLElement, not all Element objects, such as SVGElement.
api.Element.getElementsByTagName 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Chrome Android: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Firefox: Before Firefox 19, this method was returning a NodeList; it was then changed to reflect the change in the spec.Firefox for Android: Before Firefox for Android 19, this method was returning a NodeList; it was then changed to reflect the change in the spec.Quest Browser: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Opera: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Safari: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Safari on iOS: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Samsung Internet: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.WebView Android: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.WebView on iOS: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.
api.Element.getElementsByTagName.all_elements_selector Firefox11/9/2004 Chrome12/11/20081493
api.Element.getElementsByTagNameNS 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Chrome Android: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Firefox: The behavior of element.getElementsByTagNameNS changed between Firefox 3.5 and Firefox 3.6. In Firefox 3.5 and before, this function would automatically case-fold any queries so that a search for "foo" would match "Foo" or "foo". In Firefox 3.6 and later this function is now case-sensitive so that a query for "foo" will only match "foo" and not "Foo". For more background on this, please see the comment from Henri Sivonen about the change. You can also look at the relevant part of the standard, which states which parts of the API are case-sensitive and which parts aren't.Firefox: Before Firefox 19, this method was returning a NodeList; it was then changed to reflects the spec change.Firefox for Android: Before Firefox 19, this method was returning a NodeList; it was then changed to reflects the spec change.Quest Browser: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Opera: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Opera Android: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Safari: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Safari on iOS: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.Samsung Internet: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.WebView Android: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.WebView on iOS: Initially, this method was returning a NodeList; it was then changed to reflect the spec change.
api.Element.getElementsByTagNameNS.all_elements_selector Firefox11/9/2004 Chrome12/11/20081493
api.Element.hasAttribute 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.hasAttributeNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.hasAttributes 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 35, it was implemented on the Node interface.Firefox for Android: Before Firefox for Android 35, it was implemented on the Node interface.
api.Element.innerHTML 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.localName 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.namespaceURI 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.prefix 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.removeAttribute 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: This function doesn't respect boolean attributes' default values. See bug 12087679.
api.Element.removeAttributeNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.removeAttributeNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.scrollIntoView 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: The only parameter supported is alignToTop.Edge: Only supported for HTMLElement, not all Element objects, such as SVGElement.Edge: No support for smooth behavior.Internet Explorer: Only supported for HTMLElement, not all Element objects, such as SVGElement.Internet Explorer: No support for smooth behavior or center options.Safari: No support for center option.Safari: Before Safari 15.4, there was no support for the smooth behavior.Safari on iOS: No support for center option.Safari on iOS: Before iOS 15.4, there was no support for the smooth behavior.WebView on iOS: No support for center option.WebView on iOS: Before iOS 15.4, there was no support for the smooth behavior.
api.Element.scrollTop 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.scrollWidth 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: In Internet Explorer 5 through 7, if padding is set, the value of scrollWidth is equal to the sum of the left and right padding. This behavior was fixed in Internet Explorer 8.
api.Element.setAttribute 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: In Internet Explorer 7 and earlier, setAttribute doesn't set styles and removes events when you try to set them.
api.Element.setAttributeNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.setAttributeNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Element.setAttributeNodeNS 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: Returns a ClientRectList with ClientRect objects (which do not contain x and y properties) instead of DOMRect objects.Internet Explorer: Returns a ClientRectList with ClientRect objects (which do not contain x and y properties) instead of DOMRect objects.
api.Element.tagName 📋Firefox11/9/2004 Chrome12/11/20081493
api.Event 📋Firefox11/9/2004 Chrome12/11/20081493
Node.js: Only available as an internal instance.
api.Event.bubbles 📋Firefox11/29/2005 Chrome12/11/20081108
Node.js: This is not used in Node.js and is provided purely for completeness.
api.Event.cancelable 📋Firefox11/29/2005 Chrome12/11/20081108
api.Event.currentTarget 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: On Internet Explorer 6 through 8, the event model is different. Event listeners are attached with the non-standard EventTarget.attachEvent method. In this model, there is no equivalent to event.currentTarget and this is the global object. One solution to emulate the event.currentTarget feature is to wrap your handler in a function calling the handler using Function.prototype.call with the element as a first argument. This way, this will be the expected value.
api.Event.eventPhase 📋Firefox11/29/2005 Chrome12/11/20081108
api.Event.preventDefault 📋Firefox11/9/2004 Chrome12/11/20081493
api.Event.stopPropagation 📋Firefox11/9/2004 Chrome12/11/20081493
Node.js: This is not used in Node.js and is provided purely for completeness.
api.Event.target 📋Firefox11/9/2004 Chrome12/11/20081493
api.Event.timeStamp 📋Firefox11/29/2005 Chrome12/11/20081108
Chrome: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Chrome Android: Starting with Chrome Android 49, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Deno: In Deno this represents the time since UNIX epoch, not since startup. This is considered a bug, see #10835.Firefox: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Firefox for Android: Starting with Chrome 49, Firefox for Android 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Internet Explorer: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Quest Browser: Starting with Quest Browser 5.0, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Opera: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Opera Android: Starting with Chrome 49, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.Samsung Internet: Starting with Samsung Internet 5.0, Firefox 54 and Opera 36, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.WebView Android: Starting with version 49, this property returns DOMHighResTimeStamp instead of DOMTimeStamp.
api.Event.type 📋Firefox11/29/2005 Chrome12/11/20081108
api.EventTarget 📋Firefox11/9/2004 Chrome12/11/20081493
Node.js: Only available as an internal instance.Safari: window.EventTarget did not exist on versions of Safari before 10.1.Safari on iOS: window.EventTarget did not exist on versions of Safari iOS before 10.3.WebView on iOS: window.EventTarget did not exist on versions of Safari iOS before 10.3.
api.EventTarget.addEventListener 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Before Chrome 49, the type and listener parameters were optional.Chrome Android: Before Chrome Android 49, the type and listener parameters were optional.Internet Explorer: Older versions of IE supported an equivalent, proprietary EventTarget.attachEvent() method.Quest Browser: Before Quest Browser 5.0, the type and listener parameters were optional.Samsung Internet: Before Samsung Internet 5.0, the type and listener parameters were optional.WebView Android: Before Chrome 49, the type and listener parameters were optional.
api.EventTarget.removeEventListener 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Older versions of IE supported an equivalent, proprietary EventTarget.detachEvent() method.
api.External 📋Firefox10/24/2006 Chrome12/11/2008779
api.External.AddSearchProvider 📋Firefox10/24/2006 Chrome12/11/2008779
Firefox: From Firefox 78 this function does nothing, as the specification requires.
api.HTMLAnchorElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.charset 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.coords 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.hash 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: From Firefox 29 to Firefox 40, the returned value was incorrectly percent-decoded.Firefox for Android: From Firefox for Android 29 to Firefox for Android 40, the returned value was incorrectly percent-decoded.
api.HTMLAnchorElement.host 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: In Internet Explorer 9, the host of an <a> always include the port (e.g. developer.mozilla.org:443), even if there is no explicit port in the href attribute value.
api.HTMLAnchorElement.hostname 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.href 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.hreflang 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.pathname 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.
api.HTMLAnchorElement.port 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.protocol 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.rel 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.rev 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.search 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.
api.HTMLAnchorElement.shape 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.target 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.text 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAnchorElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.alt 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.coords 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.hash 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: From Firefox 29 to Firefox 40, the returned value was incorrectly percent-decoded.Firefox for Android: From Firefox for Android 29 to Firefox for Android 40, the returned value was incorrectly percent-decoded.
api.HTMLAreaElement.host 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: In Internet Explorer 9, the host of an <a> always include the port (e.g. developer.mozilla.org:443), even if there is no explicit port in the href attribute value.
api.HTMLAreaElement.hostname 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.href 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.noHref 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.pathname 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.
api.HTMLAreaElement.port 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.protocol 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.search 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.Firefox for Android: Before Firefox for Android 53, the pathname and search HTMLHyperlinkElementUtils properties returned the wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return '/x?a=true&b=false' and search would return '', rather than '/x' and '?a=true&b=false' respectively. This has now been fixed.
api.HTMLAreaElement.shape 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLAreaElement.target 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBRElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBRElement.clear 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBaseElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBaseElement.href 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBaseElement.target 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBodyElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBodyElement.aLink 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBodyElement.background 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBodyElement.bgColor 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBodyElement.link 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBodyElement.text 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLBodyElement.vLink 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLButtonElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLButtonElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLButtonElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLButtonElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLButtonElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLButtonElement.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLCanvasElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.HTMLCanvasElement.getContext 📋Firefox11/29/2005 Chrome12/11/20081108
api.HTMLCanvasElement.getContext.2d_context Firefox11/29/2005 Chrome12/11/20081108
api.HTMLCanvasElement.height 📋Firefox11/29/2005 Chrome12/11/20081108
api.HTMLCanvasElement.width 📋Firefox11/29/2005 Chrome12/11/20081108
api.HTMLCollection 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLCollection.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLCollection.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLCollection.namedItem 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLDListElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLDListElement.compact 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLDirectoryElement Firefox11/9/2004 Chrome12/11/20081493
api.HTMLDirectoryElement.compact 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLDivElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLDivElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLDocument 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.blur 📋Firefox11/29/2005 Chrome12/11/20081108
api.HTMLElement.change_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.contentEditable 📋Firefox6/17/2008 Chrome12/11/2008177
api.HTMLElement.dir 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.error_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.focus 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If there's no hardware keyboard connected and the user has not yet interacted with the page, then calling focus() on an <input> element has no effect (for example, the element does not match the :focus selector).WebView on iOS: If there's no hardware keyboard connected and the user has not yet interacted with the page, then calling focus() on an <input> element has no effect (for example, the element does not match the :focus selector).
api.HTMLElement.lang 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.load_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.offsetHeight 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.offsetLeft 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.offsetParent 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.offsetTop 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.offsetWidth 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.style 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLElement.tabIndex 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: Returns incorrect value for elements without an explicit tabindex attribute. See issue 4365703 for details.Internet Explorer: Returns incorrect value for elements without an explicit tabindex attribute. See issue 4365703 for details.
api.HTMLElement.title 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLEmbedElement 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with Chrome 58, this interface can no longer be called as a function.Chrome Android: Starting with Chrome Android 58, this interface can no longer be called as a function.Quest Browser: Starting with Quest Browser 5.0, this interface can no longer be called as a function.Opera: Starting with Opera 45, this interface can no longer be called as a function.Opera Android: Starting with Opera 45, this interface can no longer be called as a function.Samsung Internet: Starting with Samsung Internet 7.0, this interface can no longer be called as a function.WebView Android: Starting with WebView Android 58, this interface can no longer be called as a function.
api.HTMLEmbedElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLEmbedElement.getSVGDocument 📋Firefox11/29/2005 Chrome12/11/20081108
api.HTMLEmbedElement.height 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLEmbedElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLEmbedElement.src 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLEmbedElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLEmbedElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFieldSetElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFieldSetElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFontElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFontElement.color 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFontElement.face 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFontElement.size 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormControlsCollection 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.acceptCharset 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.action 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.elements 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.encoding 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.enctype 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.method 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.reset 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.submit 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.submit_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFormElement.target 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.contentDocument 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.contentWindow 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.frameBorder 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.longDesc 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.marginHeight 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.marginWidth 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.noResize 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.scrolling 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameElement.src 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameSetElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameSetElement.cols 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLFrameSetElement.rows 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHRElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHRElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHRElement.noShade 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHRElement.size 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHRElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHeadElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHeadingElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHeadingElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHtmlElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLHtmlElement.version 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.contentDocument 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.contentWindow 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.frameBorder 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.height 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.longDesc 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.marginHeight 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.marginWidth 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.scrolling 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.src 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLIFrameElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.Image 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.alt 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.border 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.complete 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: IE reports false for broken images.
api.HTMLImageElement.height 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.hspace 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.isMap 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.longDesc 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.lowsrc 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.naturalHeight 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.naturalWidth 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.src 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.useMap 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.vspace 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLImageElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.accept 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.alt 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.checked 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.defaultChecked 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.defaultValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.maxLength 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.readOnly 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.select 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.selectionEnd 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.selectionStart 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.setSelectionRange 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.size 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.src 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.useMap 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLInputElement.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLIElement 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 10, Gecko incorrectly reflected negative value attributes to 0.Firefox for Android: Before Firefox for Android 10, Gecko incorrectly reflected negative value attributes to 0.
api.HTMLLIElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLIElement.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLabelElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLabelElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLabelElement.htmlFor 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLegendElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLegendElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLegendElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.charset 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: In Chrome and other Blink-based browsers, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.Chrome Android: In Chrome Android and other Blink-based browsers, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.Edge: Since Edge 79, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.Quest Browser: In Quest Browser and other Blink-based browsers, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.Opera: In Chrome and other Blink-based browsers, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.Opera Android: In Chrome and other Blink-based browsers, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.Samsung Internet: In Chrome and other Blink-based browsers, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.WebView Android: In WebView Android and other Blink-based browsers, adding the disabled attribute using JavaScript does not remove the stylesheet from document.styleSheets.
api.HTMLLinkElement.href 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.hreflang 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.media 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.rel 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.rev 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.sheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.target 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLLinkElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMapElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMapElement.areas 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMapElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMenuElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMenuElement.compact 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMetaElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMetaElement.content 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMetaElement.httpEquiv 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMetaElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLMetaElement.scheme 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLModElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLModElement.cite 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLModElement.dateTime 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOListElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOListElement.compact 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOListElement.start 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOListElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.archive 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.border 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.code 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.codeBase 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.codeType 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.contentDocument 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.data 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.declare 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.height 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.hspace 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.standby 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.useMap 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.vspace 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLObjectElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptGroupElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptGroupElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
Safari: The property can be set, but has no effect (see bug 227042).Safari on iOS: The property can be set, but has no effect (see bug 227042).WebView on iOS: The property can be set, but has no effect (see bug 227042).
api.HTMLOptGroupElement.label 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement.Option 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Before Internet Explorer 9, the outerHTML of elements lose their text when constructing with new Option().
api.HTMLOptionElement.defaultSelected 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement.index 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement.selected 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement.text 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionElement.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionsCollection 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionsCollection.add 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionsCollection.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLOptionsCollection.selectedIndex 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLParagraphElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLParagraphElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLParamElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLParamElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLParamElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLParamElement.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLParamElement.valueType 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLPreElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLPreElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLQuoteElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLQuoteElement.cite 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement.charset 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement.event 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement.htmlFor 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement.src 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement.text 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement.textContent 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLScriptElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: You should watch for change events on <select> instead of watching <option> elements for events. See bug 1090602 and Multiprocess Firefox Web content compatibility for details.
api.HTMLSelectElement.add 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.multiple 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.namedItem 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: namedItem does not appear to take the name attribute into account (only the id attribute) on Internet Explorer and Edge. There is a bug report to Microsoft about this.Internet Explorer: namedItem does not appear to take the name attribute into account (only the id attribute) on Internet Explorer and Edge. There is a bug report to Microsoft about this.
api.HTMLSelectElement.options 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.remove 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.selectedIndex 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.size 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLSelectElement.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLStyleElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLStyleElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLStyleElement.media 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLStyleElement.sheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLStyleElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCaptionElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCaptionElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.abbr 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.axis 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.bgColor 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.cellIndex 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.ch 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.chOff 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.colSpan 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.headers 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.height 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.noWrap 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.rowSpan 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.scope 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.vAlign 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableCellElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableColElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableColElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableColElement.ch 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableColElement.chOff 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableColElement.span 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableColElement.vAlign 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableColElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.bgColor 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.border 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.caption 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.cellPadding 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.cellSpacing 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.createCaption 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.createTFoot 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.createTHead 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.deleteCaption 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.deleteRow 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.deleteTFoot 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.deleteTHead 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.frame 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.insertRow 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting with Firefox 20, the index parameter has been made optional and defaults to -1 as per HTML specification.Firefox for Android: Starting with Firefox for Android 20, the index parameter has been made optional and defaults to -1 as per HTML specification.
api.HTMLTableElement.rows 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.rules 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.summary 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.tBodies 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.tFoot 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.tHead 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableElement.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.bgColor 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.cells 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.ch 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.chOff 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.deleteCell 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.insertCell 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.rowIndex 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.sectionRowIndex 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableRowElement.vAlign 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement.align 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement.ch 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement.chOff 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement.deleteRow 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement.insertRow 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement.rows 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTableSectionElement.vAlign 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.cols 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.defaultValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.form 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.readOnly 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.rows 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.select 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.selectionEnd 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.selectionStart 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.setSelectionRange 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTextAreaElement.value 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTitleElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLTitleElement.text 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLUListElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLUListElement.compact 📋Firefox11/9/2004 Chrome12/11/20081493
api.HTMLUListElement.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.History 📋Firefox11/9/2004 Chrome12/11/20081493
api.History.back 📋Firefox11/9/2004 Chrome12/11/20081493
api.History.forward 📋Firefox11/9/2004 Chrome12/11/20081493
api.History.go 📋Firefox11/9/2004 Chrome12/11/20081493
api.History.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.KeyboardEvent 📋Firefox11/29/2005 Chrome12/11/20081108
api.KeyboardEvent.altKey 📋Firefox11/29/2005 Chrome12/11/20081108
api.KeyboardEvent.charCode 📋Firefox11/29/2005 Chrome12/11/20081108
api.KeyboardEvent.ctrlKey 📋Firefox11/29/2005 Chrome12/11/20081108
api.KeyboardEvent.keyCode 📋Firefox11/29/2005 Chrome12/11/20081108
Chrome: When selecting an autocomplete suggestion, a keydown event fires where the event's keyCode property is undefined. See bug 41425904.Chrome Android: When selecting an autocomplete suggestion, a keydown event fires where the event's keyCode property is undefined. See bug 41425904.Quest Browser: When selecting an autocomplete suggestion, a keydown event fires where the event's keyCode property is undefined. See bug 41425904.Samsung Internet: When selecting an autocomplete suggestion, a keydown event fires where the event's keyCode property is undefined. See bug 41425904.WebView Android: When selecting an autocomplete suggestion, a keydown event fires where the event's keyCode property is undefined. See bug 41425904.
api.KeyboardEvent.metaKey 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Since Firefox 48, the Windows key is no longer treated as a meta key.Firefox for Android: Since Firefox for Android 48, the Windows key is no longer treated as a meta key.
api.KeyboardEvent.shiftKey 📋Firefox11/29/2005 Chrome12/11/20081108
api.Location 📋Firefox11/9/2004 Chrome12/11/20081493
api.Location.assign 📋Firefox11/9/2004 Chrome12/11/20081493
Deno: This method exists but has no effect in Deno. A location can be assigned using the --location runtime flag.
api.Location.hash 📋Firefox11/9/2004 Chrome12/11/20081493
api.Location.host 📋Firefox11/9/2004 Chrome12/11/20081493
api.Location.hostname 📋Firefox11/9/2004 Chrome12/11/20081493
api.Location.href 📋Firefox11/9/2004 Chrome12/11/20081493
api.Location.pathname 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 53, the pathname property returned wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return "/x?a=true&b=false" rather than "/x".Firefox for Android: Before Firefox for Android 53, the pathname property returned wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, pathname would return "/x?a=true&b=false" rather than "/x".Internet Explorer: Internet Explorer does not provide the leading slash character in the pathname (docs/Web/API/Location instead of /docs/Web/API/Location).
api.Location.port 📋Firefox11/9/2004 Chrome12/11/20081493
api.Location.protocol 📋Firefox11/9/2004 Chrome12/11/20081493
api.Location.reload 📋Firefox11/9/2004 Chrome12/11/20081493
Deno: This method exists but has no effect in Deno.Edge: Before Edge 79, if a page added to Trusted Sites contains a cross-origin iframe, then calling reload() from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe).Internet Explorer: If a page added to Trusted Sites contains a cross-origin iframe, then calling reload() from within the iframe reloads the trusted page (in other words, the top page reloads, not the iframe).
api.Location.replace 📋Firefox11/9/2004 Chrome12/11/20081493
Deno: This method exists but has no effect in Deno. A location can be assigned using the --location runtime flag.
api.Location.search 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 53, the search property returned wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, search would return "", rather than "?a=true&b=false".Firefox for Android: Before Firefox for Android 53, the search property returned wrong parts of the URL. For example, for a URL of https://z.com/x?a=true&b=false, search would return "", rather than "?a=true&b=false".
api.MediaList 📋Firefox11/9/2004 Chrome12/11/20081493
api.MediaList.appendMedium 📋Firefox11/9/2004 Chrome12/11/20081493
api.MediaList.deleteMedium 📋Firefox11/9/2004 Chrome12/11/20081493
api.MediaList.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.MediaList.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.MediaList.mediaText 📋Firefox11/9/2004 Chrome12/11/20081493
api.MediaList.toString 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeType 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeType.description 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeType.enabledPlugin 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeType.suffixes 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeType.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeTypeArray 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeTypeArray.item 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Before version 59, method parameters were optionalChrome Android: Before version 59, method parameters were optionalQuest Browser: Before version 5.0, method parameters were optionalSamsung Internet: Before Samsung Internet 7.0, method parameters were optionalWebView Android: Before version 59, method parameters were optional
api.MimeTypeArray.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.MimeTypeArray.namedItem 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Before version 59, method parameters were optionalChrome Android: Before version 59, method parameters were optionalQuest Browser: Before version 5.0, method parameters were optionalSamsung Internet: Before Samsung Internet 7.0, method parameters were optionalWebView Android: Before version 59, method parameters were optional
api.MouseEvent 📋Firefox11/9/2004 Chrome12/11/20081493
api.MouseEvent.altKey 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.button 📋Firefox11/9/2004 Chrome12/11/20081493
api.MouseEvent.clientX 📋Firefox11/9/2004 Chrome12/11/20081493
api.MouseEvent.clientY 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.ctrlKey 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.initMouseEvent 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.layerX Firefox11/9/2004 Chrome12/11/20081493
api.MouseEvent.layerY Firefox11/9/2004 Chrome12/11/20081493
api.MouseEvent.metaKey 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.pageX 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.pageY 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.relatedTarget 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.screenX 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.screenY 📋Firefox11/29/2005 Chrome12/11/20081108
api.MouseEvent.shiftKey 📋Firefox11/29/2005 Chrome12/11/20081108
api.NamedNodeMap.getNamedItem 📋Firefox11/9/2004 Chrome12/11/20081493
api.NamedNodeMap.getNamedItemNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.NamedNodeMap.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.NamedNodeMap.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.NamedNodeMap.removeNamedItem 📋Firefox11/9/2004 Chrome12/11/20081493
api.NamedNodeMap.removeNamedItemNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.NamedNodeMap.setNamedItem 📋Firefox11/9/2004 Chrome12/11/20081493
api.NamedNodeMap.setNamedItemNS 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.appCodeName 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.appName 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.appVersion 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.cookieEnabled 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 8, navigator.cookieEnabled would report the wrong result if a site exception was in place for the page on which the check was performed. This has been fixed.Firefox for Android: Before Firefox for Android 8, navigator.cookieEnabled would report the wrong result if a site exception was in place for the page on which the check was performed. This has been fixed.Internet Explorer: navigator.cookieEnabled returns true even if the browser is set to block cookies (for example, if the page is in the Restricted sites security zone).Safari: Returns true even if the browser is set to block cookies if navigator.cookieEnabled is invoked inside a third-party iframe)Safari on iOS: Returns true even if the browser is set to block cookies if navigator.cookieEnabled is invoked inside a third-party iframe)WebView on iOS: Returns true even if the browser is set to block cookies if navigator.cookieEnabled is invoked inside a third-party iframe)
api.Navigator.javaEnabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.language 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 4, this property's value was also part of the user agent string, as reported by navigator.userAgent. Starting in Firefox 5, this property's value is based on the value of the Accept-Language HTTP header.Internet Explorer: Closest available (non-standard) properties are userLanguage and browserLanguage.
api.Navigator.mimeTypes 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.platform 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 69, platform would report running on a 32-bit CPU if running the 32-bit version of Firefox on a 64-bit system.Firefox: You can override the value returned by platform by setting the preference general.platform.override to the string you wish to be returned instead.
api.Navigator.plugins 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.product 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.productSub 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Always returns 20030107.Chrome Android: Always returns 20030107.Edge: Always returns 20030107.Quest Browser: Always returns 20030107.Opera: Always returns 20030107.Opera Android: Always returns 20030107.Safari: Always returns 20030107.Safari on iOS: Always returns 20030107.Samsung Internet: Always returns 20030107.WebView Android: Always returns 20030107.WebView on iOS: Always returns 20030107.
api.Navigator.userAgent 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.vendor 📋Firefox11/9/2004 Chrome12/11/20081493
api.Navigator.vendorSub 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.Chrome Android: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.Quest Browser: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.Opera: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.Opera Android: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.Safari: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.Safari on iOS: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.Samsung Internet: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.WebView Android: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.WebView on iOS: WebKit and old versions of Blink incorrectly do not make Node inherit from EventTarget.
api.Node.appendChild 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.baseURI 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.childNodes 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.cloneNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.firstChild 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.hasChildNodes 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.insertBefore 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.isDefaultNamespace 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.isEqualNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.lastChild 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.lookupNamespaceURI 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.lookupPrefix 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.nextSibling 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.nodeName 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.nodeType 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.nodeValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.normalize 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.parentNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.previousSibling 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.removeChild 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.replaceChild 📋Firefox11/9/2004 Chrome12/11/20081493
api.Node.textContent 📋Firefox11/9/2004 Chrome12/11/20081493
api.NodeList 📋Firefox11/9/2004 Chrome12/11/20081493
api.NodeList.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.NodeList.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.Plugin 📋Firefox11/9/2004 Chrome12/11/20081493
api.Plugin.description 📋Firefox11/9/2004 Chrome12/11/20081493
api.Plugin.filename 📋Firefox11/9/2004 Chrome12/11/20081493
api.Plugin.item 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with version 59, method parameters are required instead of optional.Chrome Android: Starting with version 59, method parameters are required instead of optional.Quest Browser: Starting with version 5.0, method parameters are required instead of optional.Samsung Internet: Starting with Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Starting with version 59, method parameters are required instead of optional.
api.Plugin.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.Plugin.name 📋Firefox11/9/2004 Chrome12/11/20081493
api.Plugin.namedItem 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with version 59, method parameters are required instead of optional.Chrome Android: Starting with version 59, method parameters are required instead of optional.Quest Browser: Starting with version 5.0, method parameters are required instead of optional.Samsung Internet: Starting with Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Starting with version 59, method parameters are required instead of optional.
api.PluginArray 📋Firefox11/9/2004 Chrome12/11/20081493
api.PluginArray.item 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Since Chrome 59, method parameters are required instead of optional.Chrome Android: Since Chrome Android 59, method parameters are required instead of optional.Edge: Since Edge 79, method parameters are required instead of optional.Quest Browser: Since Quest Browser 5.0, method parameters are required instead of optional.Opera: Since Opera 46, method parameters are required instead of optional.Opera Android: Since Opera Android 43, method parameters are required instead of optional.Samsung Internet: Since Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Since WebView Android 59, method parameters are required instead of optional.
api.PluginArray.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.PluginArray.namedItem 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Since Chrome 59, method parameters are required instead of optional.Chrome Android: Since Chrome Android 59, method parameters are required instead of optional.Edge: Since Edge 79, method parameters are required instead of optional.Quest Browser: Since Quest Browser 5.0, method parameters are required instead of optional.Opera: Since Opera 46, method parameters are required instead of optional.Opera Android: Since Opera Android 43, method parameters are required instead of optional.Samsung Internet: Since Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Since WebView Android 59, method parameters are required instead of optional.
api.PluginArray.refresh 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Since Chrome 59, method parameters are required instead of optional.Chrome Android: Since Chrome Android 59, method parameters are required instead of optional.Edge: Since Edge 79, method parameters are required instead of optional.Quest Browser: Since Quest Browser 5.0, method parameters are required instead of optional.Opera: Since Opera 46, method parameters are required instead of optional.Opera Android: Since Opera Android 43, method parameters are required instead of optional.Samsung Internet: Since Samsung Internet 7.0, method parameters are required instead of optional.WebView Android: Since WebView Android 59, method parameters are required instead of optional.
api.ProcessingInstruction 📋Firefox11/9/2004 Chrome12/11/20081493
api.ProcessingInstruction.sheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.ProcessingInstruction.target 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting with Firefox 13, the Range object throws a DOMException as defined in DOM 4, instead of a RangeException defined in prior specifications.Firefox for Android: Starting with Firefox for Android 14, the Range object throws a DOMException as defined in DOM 4, instead of a RangeException defined in prior specifications.
api.Range.cloneContents 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.cloneRange 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.collapse 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.collapsed 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.commonAncestorContainer 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.compareBoundaryPoints 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.comparePoint 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.createContextualFragment 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.deleteContents 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.detach 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Since Chrome 37, this method does nothing, as specified. See bug 40362748.Chrome Android: Since Chrome Android 37, this method does nothing, as specified. See bug 40362748.Firefox: Since Firefox 15, this method does nothing, as specified. See bug 702948.Firefox for Android: Since Firefox for Android 15, this method does nothing, as specified. See bug 702948.Quest Browser: Since Quest Browser 5.0, this method does nothing, as specified. See bug 40362748.Opera: Since Opera 24, this method does nothing, as specified. See bug 40362748.Opera Android: Since Opera 24, this method does nothing, as specified. See bug 40362748.Safari: Since Safari 10, this method does nothing, see bug 148454.Safari on iOS: Since Safari on iOS 10, this method does nothing, see bug 148454.Samsung Internet: Since Samsung Internet 3.0, this method does nothing, as specified. See bug 40362748.WebView Android: Since WebView Android 37, this method does nothing, as specified. See bug 40362748.WebView on iOS: Since WebView on iOS 10, this method does nothing, see bug 148454.
api.Range.endContainer 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.endOffset 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.extractContents 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.insertNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.isPointInRange 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.selectNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.selectNodeContents 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.setEnd 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.setEndAfter 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.setEndBefore 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.setStart 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.setStartAfter 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.setStartBefore 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.startContainer 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.startOffset 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.surroundContents 📋Firefox11/9/2004 Chrome12/11/20081493
api.Range.toString 📋Firefox11/9/2004 Chrome12/11/20081493
api.SVGAElement 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGAElement.target 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGAngle 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAngle.convertToSpecifiedUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAngle.newValueSpecifiedUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAngle.unitType 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAngle.value 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAngle.valueAsString 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAngle.valueInSpecifiedUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedAngle 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedAngle.animVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedAngle.baseVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedEnumeration 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedEnumeration.animVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedEnumeration.baseVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedLength.animVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedLength.baseVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedLengthList 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedLengthList.animVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedLengthList.baseVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedNumber 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedNumber.animVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedNumber.baseVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedRect 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedString 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedString.animVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedString.baseVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedTransformList 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedTransformList.animVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGAnimatedTransformList.baseVal 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGCircleElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGCircleElement.cx 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGCircleElement.cy 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGCircleElement.r 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGClipPathElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGClipPathElement.clipPathUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGClipPathElement.transform 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGDefsElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGDescElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGElement.className 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGElement.ownerSVGElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGElement.style 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGElement.viewportElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGEllipseElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGEllipseElement.cx 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGEllipseElement.cy 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGEllipseElement.rx 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGEllipseElement.ry 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGForeignObjectElement 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGForeignObjectElement.height 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGForeignObjectElement.width 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGForeignObjectElement.x 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGForeignObjectElement.y 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGGElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGGradientElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGGradientElement.gradientTransform 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGGradientElement.gradientUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGGradientElement.href 📋Firefox10/24/2006 Chrome12/11/2008779
api.SVGGradientElement.spreadMethod 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGGraphicsElement.getBBox 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Before Firefox 128, the getBBox() method returned an empty DOMRect when there is no fill (bug 1019326).Firefox: Before Firefox 68, this method didn't work for <textPath> and <tspan> elements (bug 937268).Firefox for Android: Before Firefox for Android 128, the getBBox() method returned an empty DOMRect when there is no fill (bug 1019326).Firefox for Android: Before Firefox for Android 68, this method didn't work for <textPath> and <tspan> elements (bug 937268).
api.SVGGraphicsElement.getCTM 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGGraphicsElement.getScreenCTM 📋Firefox11/29/2005 Chrome12/11/20081108
Safari: Transforms on the parent are not propagated down to its children; see bug 209220.Safari on iOS: Transforms on the parent are not propagated down to its children; see bug 209220.WebView on iOS: Transforms on the parent are not propagated down to its children; see bug 209220.
api.SVGGraphicsElement.transform 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGImageElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGImageElement.height 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGImageElement.href 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGImageElement.preserveAspectRatio 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGImageElement.width 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGImageElement.x 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGImageElement.y 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLength.convertToSpecifiedUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLength.newValueSpecifiedUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLength.unitType 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLength.value 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLength.valueAsString 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLength.valueInSpecifiedUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.appendItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.clear 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.getItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.initialize 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.insertItemBefore 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.numberOfItems 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.removeItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLengthList.replaceItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLineElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLineElement.x1 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLineElement.x2 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLineElement.y1 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLineElement.y2 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLinearGradientElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLinearGradientElement.x1 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLinearGradientElement.x2 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLinearGradientElement.y1 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGLinearGradientElement.y2 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.markerHeight 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.markerUnits 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.markerWidth 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.orientAngle 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.orientType 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.preserveAspectRatio 📋Firefox10/24/2006 Chrome12/11/2008779
api.SVGMarkerElement.refX 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.refY 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.setOrientToAngle 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.setOrientToAuto 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGMarkerElement.viewBox 📋Firefox10/24/2006 Chrome12/11/2008779
api.SVGMaskElement 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGMaskElement.height 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGMaskElement.maskContentUnits 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGMaskElement.maskUnits 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGMaskElement.width 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGMaskElement.x 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGMaskElement.y 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGMetadataElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGNumber 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGNumber.value 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPathElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPathElement.getPointAtLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPathElement.getTotalLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPathElement.pathLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPatternElement 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.height 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.href 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.patternContentUnits 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.patternTransform 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.patternUnits 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.preserveAspectRatio 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.viewBox 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.width 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.x 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPatternElement.y 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGPoint 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPoint.matrixTransform 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPoint.x 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPoint.y 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.appendItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.clear 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.getItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.initialize 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.insertItemBefore 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.numberOfItems 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.removeItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPointList.replaceItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPolygonElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPolygonElement.animatedPoints 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPolygonElement.points 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPolylineElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPolylineElement.animatedPoints 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPolylineElement.points 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPreserveAspectRatio 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPreserveAspectRatio.align 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGPreserveAspectRatio.meetOrSlice 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRadialGradientElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRadialGradientElement.cx 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRadialGradientElement.cy 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRadialGradientElement.fx 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRadialGradientElement.fy 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRadialGradientElement.r 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRect 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRect.height Firefox11/29/2005 Chrome12/11/20081108
api.SVGRect.width Firefox11/29/2005 Chrome12/11/20081108
api.SVGRect.x Firefox11/29/2005 Chrome12/11/20081108
api.SVGRect.y Firefox11/29/2005 Chrome12/11/20081108
api.SVGRectElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRectElement.height 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRectElement.rx 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRectElement.ry 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRectElement.width 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRectElement.x 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGRectElement.y 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.animationsPaused 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGAngle 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGMatrix 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGNumber 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGPoint 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGRect 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGTransform 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.createSVGTransformFromMatrix 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.currentScale 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.currentTranslate 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.forceRedraw 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.getCurrentTime 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.height 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.pauseAnimations 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.preserveAspectRatio 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.setCurrentTime 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.suspendRedraw 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.unpauseAnimations 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.unsuspendRedraw 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.unsuspendRedrawAll 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.viewBox 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.width 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.x 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSVGElement.y 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGScriptElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGScriptElement.href 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGScriptElement.type 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGStopElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGStopElement.offset 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGStyleElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGStyleElement.media 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGStyleElement.title 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGStyleElement.type 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSwitchElement 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGSymbolElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSymbolElement.preserveAspectRatio 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGSymbolElement.viewBox 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTSpanElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getCharNumAtPosition 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getComputedTextLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getEndPositionOfChar 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getExtentOfChar 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getNumberOfChars 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getRotationOfChar 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getStartPositionOfChar 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.getSubStringLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.lengthAdjust 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.selectSubString 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextContentElement.textLength 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextPathElement 📋Firefox10/24/2006 Chrome12/11/2008779
api.SVGTextPathElement.href 📋Firefox10/24/2006 Chrome12/11/2008779
api.SVGTextPositioningElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextPositioningElement.dx 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextPositioningElement.dy 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextPositioningElement.rotate 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextPositioningElement.x 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTextPositioningElement.y 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTitleElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.angle 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.matrix 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.setMatrix 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.setRotate 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.setScale 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.setSkewX 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.setSkewY 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.setTranslate 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransform.type 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.appendItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.clear 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.consolidate 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.createSVGTransformFromMatrix 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.getItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.initialize 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.insertItemBefore 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.numberOfItems 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.removeItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGTransformList.replaceItem 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGUnitTypes 📋Firefox6/17/2008 Chrome12/11/2008177
api.SVGUseElement 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGUseElement.height 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGUseElement.href 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGUseElement.width 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGUseElement.x 📋Firefox11/29/2005 Chrome12/11/20081108
api.SVGUseElement.y 📋Firefox11/29/2005 Chrome12/11/20081108
api.Screen 📋Firefox11/9/2004 Chrome12/11/20081493
api.Screen.availHeight 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: Always reflects the main screen.
api.Screen.availLeft Firefox11/9/2004 Chrome12/11/20081493
api.Screen.availLeft.relative-multi-screen Firefox11/9/2004 Chrome12/11/20081493
Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Screen.availTop Firefox11/9/2004 Chrome12/11/20081493
api.Screen.availTop.relative-multi-screen Firefox11/9/2004 Chrome12/11/20081493
Safari: Coordinate origin used is inconsistent/unreliable.Safari on iOS: Coordinate origin used is inconsistent/unreliable.WebView on iOS: Coordinate origin used is inconsistent/unreliable.
api.Screen.availWidth 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: Always reflects the main screen.
api.Screen.colorDepth 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with version 59 this property is no longer required to always return 24.Chrome Android: Starting with version 59 this property is no longer required to always return 24.Quest Browser: Starting with version 5.0 this property is no longer required to always return 24.Samsung Internet: Starting with Samsung Internet 7.0 this property is no longer required to always return 24.WebView Android: Starting with version 59 this property is no longer required to always return 24.
api.Screen.height 📋Firefox11/9/2004 Chrome12/11/20081493
api.Screen.pixelDepth 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with version 59 this property is no longer required to always return 24.Chrome Android: Starting with version 59 this property is no longer required to always return 24.Quest Browser: Starting with version 5.0 this property is no longer required to always return 24.Samsung Internet: Starting with Samsung Internet 7.0 this property is no longer required to always return 24.WebView Android: Starting with version 59 this property is no longer required to always return 24.
api.Screen.width 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.addRange 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.anchorNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.anchorOffset 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.collapse 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.collapseToEnd 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.collapseToStart 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.containsNode 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 35, the method didn't throw if node was null.Firefox for Android: Before Firefox for Android 35, the method didn't throw if node was null.
api.Selection.deleteFromDocument 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.extend 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.focusNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.focusOffset 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.getRangeAt 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.isCollapsed 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.rangeCount 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.removeAllRanges 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.selectAllChildren 📋Firefox11/9/2004 Chrome12/11/20081493
api.Selection.toString 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 139, toString() returns an empty string for selected texts in form elements. See bug 85686.Firefox for Android: Before Firefox for Android 139, toString() returns an empty string for selected texts in form elements. See bug 85686.
api.StyleSheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheet.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheet.href 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheet.media 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheet.ownerNode 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheet.parentStyleSheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheet.title 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheet.type 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheetList 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheetList.item 📋Firefox11/9/2004 Chrome12/11/20081493
api.StyleSheetList.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.Text 📋Firefox11/9/2004 Chrome12/11/20081493
api.Text.splitText 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Before Chrome 30, the offset parameter was optional.Chrome Android: Before Chrome Android 30, the offset parameter was optional.Quest Browser: Before Quest Browser 5.0, the offset parameter was optional.Opera: Before Opera 17, the offset parameter was optional.Opera Android: Before Opera 17, the offset parameter was optional.Safari: The offset parameter is optional.Safari on iOS: The offset parameter is optional.Samsung Internet: Before Samsung Internet 2.0, the offset parameter was optional.WebView Android: Before version 4.4, the offset parameter was optional.WebView on iOS: The offset parameter is optional.
api.UIEvent 📋Firefox11/9/2004 Chrome12/11/20081493
api.UIEvent.detail 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Always 0 on click and dblclick events. On mousedown and mouseup events, the count is not unique to the element, but is rather the global click count for the current document -- even across refreshes.
api.UIEvent.initUIEvent 📋Firefox11/9/2004 Chrome12/11/20081493
api.UIEvent.view 📋Firefox11/9/2004 Chrome12/11/20081493
api.UIEvent.which 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: When selecting an autocomplete suggestion, a keydown event fires where the event's which property is undefined. See bug 41425904.Chrome Android: When selecting an autocomplete suggestion, a keydown event fires where the event's which property is undefined. See bug 41425904.Edge: Only supported for KeyboardEvent and MouseEvent, not all UIEvent objects.Firefox: On mousemove events, the which property is incorrectly always set to 1.Firefox for Android: On mousemove events, the which property is incorrectly always set to 1.Internet Explorer: Only supported for KeyboardEvent and MouseEvent, not all UIEvent objects.Quest Browser: When selecting an autocomplete suggestion, a keydown event fires where the event's which property is undefined. See bug 41425904.Opera: Only supported for KeyboardEvent and MouseEvent, not all UIEvent objects.Opera Android: Only supported for KeyboardEvent and MouseEvent, not all UIEvent objects.Samsung Internet: When selecting an autocomplete suggestion, a keydown event fires where the event's which property is undefined. See bug 41425904.WebView Android: When selecting an autocomplete suggestion, a keydown event fires where the event's which property is undefined. See bug 41425904.
api.Window 📋Firefox11/9/2004 Chrome12/11/20081493
Node.js: The Window interface is not implemented, but some methods, and properties are available in the global scope.
api.Window.DOMContentLoaded_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.alert 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera Android: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.WebView Android: Starting with WebView Android 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
api.Window.beforeunload_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.beforeunload_event.return_string_activation Firefox11/9/2004 Chrome12/11/20081493
api.Window.blur 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.captureEvents 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.close 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Before Chrome 95, script-closeability depended on having an opener, not on being created by web content.Chrome Android: Before Chrome Android 95, script-closeability depended on having an opener, not on being created by web content.Deno: Exits the current Deno process.Firefox: Before Firefox 128, script-closeability depended on having an opener, not on being created by web content.Firefox for Android: Before Firefox for Android 128, script-closeability depended on having an opener, not on being created by web content.Quest Browser: Before Quest Browser 18.0, script-closeability depended on having an opener, not on being created by web content.Samsung Internet: Before Samsung Internet 17.0, script-closeability depended on having an opener, not on being created by web content.WebView Android: Before WebView Android 95, script-closeability depended on having an opener, not on being created by web content.
api.Window.closed 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.confirm 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera Android: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.WebView Android: Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
api.Window.document 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.external 📋Firefox10/24/2006 Chrome12/11/2008779
Firefox: From Firefox 78 AddSearchProvider() does nothing, as the specification requires.Firefox for Android: From Firefox for Android 79 AddSearchProvider() does nothing, as the specification requires.
api.Window.find Firefox11/9/2004 Chrome12/11/20081493
api.Window.focus 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting in Chrome 66, opening a popup in fullscreen mode and calling this function will end fullscreen mode.
api.Window.frameElement 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.frames 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.getComputedStyle 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before version 62 this function returned null when called on a Window with no presentation (e.g. an iframe with display: none; set). Since 62 it returns a CSSStyleDeclaration object with length 0, containing empty strings (bug 1467722; also see bug 1471231 for further work).Firefox for Android: Before version 62 this function returned null when called on a Window with no presentation (e.g. an iframe with display: none; set). Since 62 it returns a CSSStyleDeclaration object with length 0, containing empty strings (bug 1467722; also see bug 1471231 for further work).
api.Window.getSelection 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.history 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.innerHeight 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Firefox for Android: Before version 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Safari on iOS: This property returns the height of the visual viewport instead of the layout viewport. See bug 174362 for details.WebView on iOS: This property returns the height of the visual viewport instead of the layout viewport. See bug 174362 for details.
api.Window.innerWidth 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: From version 4 to 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Firefox for Android: Before version 24, this property could give a wrong value before page load in certain circumstances (see bug 641188).Safari on iOS: This property returns the width of the visual viewport instead of the layout viewport. See bug 174362 for details.WebView on iOS: This property returns the width of the visual viewport instead of the layout viewport. See bug 174362 for details.
api.Window.length 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.load_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.location 📋Firefox11/9/2004 Chrome12/11/20081493
Deno: Reflects the value passed via the --location runtime flag.Firefox: Before Firefox 57, single quotes contained in URLs were escaped when accessed via URL APIs. See bug 1386683.Firefox for Android: Before Firefox for Android 57, single quotes contained in URLs were escaped when accessed via URL APIs. See bug 1386683.
api.Window.locationbar 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.menubar 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.moveBy 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.moveTo 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.name 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 86, if a new page from another domain is loaded into a tab, then window.name is not set to an empty string, which can allow some cross-site attacks. See bug 1685089 and bug 444222.Firefox for Android: Before Firefox for Android 86, if a new page from another domain is loaded into a tab, then window.name is not set to an empty string, which can allow some cross-site attacks. See bug 1685089 and bug 444222.
api.Window.navigator 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.open 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: This method will not function if the target parameter is unspecified or set to _blank.WebView on iOS: This method will not function if the target parameter is unspecified or set to _blank.
api.Window.opener 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.outerHeight 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.outerWidth 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.parent 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.personalbar 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.print 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera Android: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.WebView Android: Starting with WebView Android 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
api.Window.prompt 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Chrome Android: Starting with Chrome Android 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Firefox: Firefox strips newline characters from the prompt response; see bug 1716229.Firefox for Android: Firefox for Android strips newline characters from the prompt response; see bug 1716229.Internet Explorer: This function has no effect in the Modern UI/Metro version of Internet Explorer for Windows 8. It does not display a prompt to the user, and always returns undefined. It is not clear whether this is a bug or intended behavior. Desktop versions of IE do implement this function.Quest Browser: Starting with Quest Browser 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Opera Android: Starting with Opera 33, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.Samsung Internet: Starting with Samsung Internet 5.0, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.WebView Android: Starting with WebView Android 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
api.Window.releaseEvents 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.resizeBy 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by window.open or contains more than one tab. See here for more details.
api.Window.resizeTo 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn't created by window.open or contains more than one tab. See here for more details.
api.Window.resize_event 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Chrome does not fire a resize event on page load.Chrome Android: Chrome Android does not fire a resize event on page load.Edge: Before Edge 79, Edge fired a resize event on page load. This is no longer the case.Firefox: Before Firefox 68, Firefox fired a resize event on page load. This is no longer the case.Firefox for Android: Before Firefox for Android 68, Firefox for Android fired a resize event on page load. This is no longer the case.Quest Browser: Quest Browser does not fire a resize event on page load.Opera: Opera does not fire a resize event on page load.Opera Android: Opera does not fire a resize event on page load.Samsung Internet: Samsung Internet does not fire a resize event on page load.WebView Android: WebView does not fire a resize event on page load.
api.Window.screen 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.screenX 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.Firefox for Android: Before Firefox for Android 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.
api.Window.screenY 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.Firefox for Android: Before Firefox for Android 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.
api.Window.scroll 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.scrollBy 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.scrollTo 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.scrollX 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.scrollY 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.scrollbars 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.self 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.status 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.statusbar 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.stop 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.toolbar 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.top 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting in Firefox 6, this property is read only, as defined by the standard.
api.Window.unload_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.Window.window 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Implemented via ActiveXObject('Microsoft.XMLHTTP')
api.XMLHttpRequest.XMLHttpRequest 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.abort 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.error_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.getAllResponseHeaders 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting from Firefox 49, empty headers are returned as empty strings in case the preference network.http.keep_empty_response_headers_as_empty_string is set to true, defaulting to false. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to true.Firefox for Android: Starting from Firefox for Android 49, empty headers are returned as empty strings in case the preference network.http.keep_empty_response_headers_as_empty_string is set to true, defaulting to false. Before Firefox for Android 49 empty headers had been ignored. Since Firefox for Android 50 the preference defaults to true.
api.XMLHttpRequest.getResponseHeader 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting from Firefox 49, empty headers are returned as empty strings in case the preference network.http.keep_empty_response_headers_as_empty_string is set to true, defaulting to false. Before Firefox 49 empty headers had been ignored. Since Firefox 50 the preference defaults to true.Firefox for Android: Starting from Firefox for Android 49, empty headers are returned as empty strings in case the preference network.http.keep_empty_response_headers_as_empty_string is set to true, defaulting to false. Before Firefox for Android 49 empty headers had been ignored. Since Firefox for Android 50 the preference defaults to true.
api.XMLHttpRequest.load_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.open 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting in Firefox 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the async parameter may not be false except in a Worker.Firefox for Android: Starting in Firefox for Android 30, synchronous requests on the main thread have been deprecated due to their negative impact on performance and the user experience. Therefore, the async parameter may not be false except in a Worker.
api.XMLHttpRequest.overrideMimeType 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Implemented via ActiveXObject
api.XMLHttpRequest.progress_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.readyState 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.readystatechange_event 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.responseText 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Before Internet Explorer 10, the value of XMLHttpRequest.responseText could be read only once the request was complete.
api.XMLHttpRequest.responseXML 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 51, an error parsing the received data added a <parsererror> node to the top of the Document and then returned the Document in whatever state it happens to be in. This was inconsistent with the specification. Starting with Firefox 51, this scenario now correctly returns null as per the spec.Firefox for Android: Before Firefox for Android 51, an error parsing the received data added a <parsererror> node to the top of the Document and then returned the Document in whatever state it happens to be in. This was inconsistent with the specification. Starting with Firefox for Android 51, this scenario now correctly returns null as per the spec.
api.XMLHttpRequest.send 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.setRequestHeader 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLHttpRequest.status 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Internet Explorer version 5 and 6 supported ajax calls using ActiveXObject()
api.XMLHttpRequest.statusText 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Internet Explorer version 5 and 6 supported ajax calls using ActiveXObject()
api.XMLHttpRequestEventTarget 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLSerializer 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLSerializer.XMLSerializer 📋Firefox11/9/2004 Chrome12/11/20081493
api.XMLSerializer.serializeToString 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathEvaluator 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathEvaluator.XPathEvaluator 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathEvaluator.createExpression 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathEvaluator.createNSResolver 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathEvaluator.evaluate 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathExpression 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathExpression.evaluate 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.booleanValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.invalidIteratorState 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.iterateNext 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.numberValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.resultType 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.singleNodeValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.snapshotItem 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.snapshotLength 📋Firefox11/9/2004 Chrome12/11/20081493
api.XPathResult.stringValue 📋Firefox11/9/2004 Chrome12/11/20081493
api.XSLTProcessor 📋Firefox11/9/2004 Chrome12/11/20081493
api.XSLTProcessor.XSLTProcessor 📋Firefox11/9/2004 Chrome12/11/20081493
api.XSLTProcessor.clearParameters 📋Firefox11/9/2004 Chrome12/11/20081493
api.XSLTProcessor.getParameter 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Chrome only supports string values.Chrome Android: Chrome Android only supports string values.Edge: Edge only supports string values.Quest Browser: Quest Browser only supports string values.Opera: Opera only supports string values.Opera Android: Opera only supports string values.Safari: Safari only supports string values.Safari on iOS: Safari on iOS only supports string values.Samsung Internet: Samsung Internet only supports string values.WebView Android: WebView only supports string values.WebView on iOS: WebView on iOS only supports string values.
api.XSLTProcessor.importStylesheet 📋Firefox11/9/2004 Chrome12/11/20081493
api.XSLTProcessor.removeParameter 📋Firefox11/9/2004 Chrome12/11/20081493
api.XSLTProcessor.reset 📋Firefox11/9/2004 Chrome12/11/20081493
api.XSLTProcessor.setParameter 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Chrome only supports string values.Chrome Android: Chrome Android only supports string values.Edge: Edge only supports string values.Quest Browser: Quest Browser only supports string values.Opera: Opera only supports string values.Opera Android: Opera only supports string values.Safari: Safari only supports string values.Safari on iOS: Safari on iOS only supports string values.Samsung Internet: Samsung Internet only supports string values.WebView Android: WebView only supports string values.WebView on iOS: WebView on iOS only supports string values.
api.XSLTProcessor.transformToDocument 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Chrome returns null if an error occurs.Chrome Android: Chrome Android returns null if an error occurs.Edge: Edge returns null if an error occurs.Firefox: Firefox throws an exception if an error occurs.Firefox for Android: Firefox for Android throws an exception if an error occurs.Quest Browser: Quest Browser returns null if an error occurs.Opera: Opera 12.1 and earlier throws an exception if an error occurs.Opera: Opera 15 and later returns null if an error occurs.Opera Android: Opera Android 12.1 and earlier throws an exception if an error occurs.Opera Android: Opera Android 14 and later returns null if an error occurs.Safari: Safari returns null if an error occurs.Safari on iOS: Safari on iOS returns null if an error occurs.Samsung Internet: Samsung Internet returns null if an error occurs.WebView Android: WebView returns null if an error occurs.WebView on iOS: WebView on iOS returns null if an error occurs.
api.XSLTProcessor.transformToFragment 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Chrome returns null if an error occurs.Chrome Android: Chrome Android returns null if an error occurs.Edge: Edge returns null if an error occurs.Firefox: Firefox throws an exception if an error occurs.Firefox for Android: Firefox for Android throws an exception if an error occurs.Quest Browser: Quest Browser returns null if an error occurs.Opera: Opera 12.1 and earlier throws an exception if an error occurs.Opera: Opera 15 and later returns null if an error occurs.Opera Android: Opera Android 12.1 and earlier throws an exception if an error occurs.Opera Android: Opera Android 14 and later returns null if an error occurs.Safari: Safari returns null if an error occurs.Safari on iOS: Safari on iOS returns null if an error occurs.Samsung Internet: Samsung Internet returns null if an error occurs.WebView Android: WebView returns null if an error occurs.WebView on iOS: WebView on iOS returns null if an error occurs.
api.clearInterval 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: From Internet Explorer 4 through 8, clearInterval is an Object rather than a Function. This behavior was fixed in Internet Explorer 9.Node.js: Takes a Timeout object instead of the intervalID.
api.clearTimeout 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: From Internet Explorer 4 through 8, clearTimeout is an Object rather than a Function. This behavior was fixed in Internet Explorer 9.Node.js: Takes a Timeout object instead of the timeoutID.
api.setInterval 📋Firefox11/9/2004 Chrome12/11/20081493
Node.js: Returns a Timeout object instead of the intervalID.Node.js: Does not support passing a code string and throws when the first parameter is not a function.
api.setInterval.supports_parameters_for_callback Firefox11/9/2004 Chrome12/11/20081493
api.setTimeout 📋Firefox11/9/2004 Chrome12/11/20081493
Node.js: Returns a Timeout object instead of the timeoutID.Node.js: Does not support passing a code string and throws when the first parameter is not a function.
api.setTimeout.supports_parameters_for_callback Firefox11/9/2004 Chrome12/11/20081493