This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.
The clone() method of the MediaStream interface creates a duplicate of the MediaStream. This new MediaStream object has a new unique id and contains clones of every MediaStreamTrack contained by the MediaStream on which clone() was called.
clone()
None.
A new MediaStream instance which has a new unique ID and contains clones of every MediaStreamTrack contained by the MediaStream on which clone() was called.
| Specification |
|---|
| Media Capture and Streams> # dom-mediastream-clone> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
clone |
35 | 12 | 48 | 22 | 11 | 35 | 48 | 22 | 11 | 3.0 | 37 | 11 |
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https://developer.mozilla.org/en-US/docs/Web/API/MediaStream/clone