MediaSession: setScreenshareActive() method

Limited availability

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

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The setScreenshareActive() method of the MediaSession interface is used to indicate to the user agent whether the user's screenshare is considered to be active.

Call this method on the navigator object's mediaSession object.

Note that the status of the screenshare is not tracked in the MediaSession itself, but must be tracked separately.

Syntax

js
setScreenshareActive(active)

Parameters

active

A boolean indicating whether the screenshare is considered active or not.

Return value

None (undefined).

Examples

Below is an example of updating the screenshare active state of the current MediaSession, as well as listening to requests to change the screenshare status with setActionHandler().

js
let screenshareActive = false;

navigator.mediaSession.setCameraActive(cameraActive);

navigator.mediaSession.setActionHandler("togglescreenshare", () => {
  screenshareActive = !screenshareActive;
  navigator.mediaSession.setCameraActive(screenshareActive);
});

Specifications

Specification
Media Session
# dom-mediasession-setscreenshareactive

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
setScreenshareActive
Experimental
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 18.4 (Release date: 2025-03-31)
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 – Full support
Safari on iOS 18.4 (Release date: 2025-03-31)
footnote Full support
Samsung Internet – No support
Samsung Internet
footnote No support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – Full support
WebView on iOS 18.4 (Release date: 2025-03-31)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.