This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The getCueAsHTML() method of the VTTCue interface returns a DocumentFragment containing the cue content.
getCueAsHTML()
None.
In the following example a new VTTCue is created. The value as a document fragment is then printed to the console.
let video = document.querySelector("video");
let track = video.addTextTrack("captions", "Captions", "en");
track.mode = "showing";
let cue = new VTTCue(0, 0.9, "Hildy!");
console.log(cue.getCueAsHTML());
track.addCue(cue);
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
getCueAsHTML |
23 | 12 | 31 | ≤12.1 | 6 | 25 | 31 | ≤12.1 | 8 | 1.5 | 4.4 | 8 |
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https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/getCueAsHTML