This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The track read-only property of the TextTrackCue interface returns the TextTrack object that this cue belongs to.
A TextTrack object.
In the following example a new VTTCue (which inherits from TextTrackCue) is created, then added to a track. The value of track is printed to the console.
const video = document.querySelector("video");
const captionTrack = video.addTextTrack("captions", "Captions", "en");
captionTrack.mode = "showing";
const cue = new VTTCue(0, 0.9, "Hildy!");
captionTrack.addCue(cue);
console.log(cue.track); // a TextTrack object.
| Specification |
|---|
| HTML> # dom-texttrackcue-track> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
track |
23 | 12 | 31 | ≤12.1 | 6 | 25 | 31 | ≤12.1 | 7 | 1.5 | 4.4 | 7 |
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https://developer.mozilla.org/en-US/docs/Web/API/TextTrackCue/track