On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 43 on 2015-05-19 Note: Only available in service workers.
In Chrome Android version 43 on 2015-05-27 Note: Only available in service workers.
In Deno version 1.26 on 2022-09-29
In Edge version 16 on 2017-10-17
In Firefox version 44 on 2016-01-26
In Firefox for Android version 44 on 2016-01-26
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
In Opera version 30 on 2015-06-09 Note: Only available in service workers.
In Opera Android version 30 on 2015-06-10 Note: Only available in service workers.
In Safari version 11.1 on 2018-04-12
In Safari on iOS version 11.3 on 2018-03-29
In Samsung Internet version 4.0 on 2016-03-11
In WebView Android version 43 on 2015-05-27 Note: Only available in service workers.
In WebView on iOS version 11.3 on 2018-03-29