On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 48 on 2016-01-20
In Chrome Android version 48 on 2016-01-26
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-28
In Firefox version 38 on 2015-05-12
In Firefox for Android version 38 on 2015-05-12
In Internet Explorer version 5.5 on 2000-07-06
In Node.js version 6.0.0 on 2016-04-26
In Quest Browser version 5.0 on undefined
In Opera version 35 on 2016-02-02
In Opera Android version 35 on 2016-02-04
In Safari version 1.3 on 2005-04-15
In Safari on iOS version 1 on 2007-06-29
In Samsung Internet version 5.0 on 2016-12-15
In WebView Android version 48 on 2016-01-26