MediaSource: canConstructInDedicatedWorker static property

Limited availability

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

Note: This feature is available in Dedicated Web Workers.

The canConstructInDedicatedWorker static property of the MediaSource interface returns true if MediaSource worker support is implemented, providing a low-latency feature detection mechanism.

If this were not available, the alternative would be a much higher latency approach such as attempting the creation of a MediaSource object from a dedicated worker and transferring the result back to the main thread.

Value

A boolean. Returns true if MediaSource worker support is implemented, or false otherwise.

Examples

js
if (MediaSource.canConstructInDedicatedWorker) {
  // MSE is available in workers; let's do this
}

Specifications

Specification
Media Source Extensions™
# dom-mediasource-canconstructindedicatedworker

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
canConstructInDedicatedWorker static property

Legend

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Full support
Full support
No support
No support

See also