TextTrack: sourceBuffer property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The read-only sourceBuffer property of the TextTrack interface returns the SourceBuffer that created the track, or null if the track was not created by a SourceBuffer or the SourceBuffer has been removed from the MediaSource.sourceBuffers attribute of its parent media source.

Value

Specification
Media Source Extensions™ # dom-texttrack-sourcebuffer

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`sourceBuffer`	Chrome – No support Chrome footnote No support	Edge – No support Edge footnote No support	Firefox – No support Firefox footnote No support	Opera – No support Opera footnote No support	Safari – Full support Safari 8 (Release date: 2014-10-16) footnote Full support	Chrome Android – No support Chrome Android footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – No support Opera Android footnote No support	Safari on iOS – Partial support Safari on iOS 13 (Release date: 2019-09-19) footnote Partial support footnote Exposed in Mobile Safari on iPad but not on iPhone. footnote See bug 200147	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – No support WebView Android footnote No support	WebView on iOS – Partial support WebView on iOS 13 (Release date: 2019-09-19) footnote Partial support footnote Exposed in Mobile Safari on iPad but not on iPhone. footnote See bug 200147

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