On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 36 on 2014-07-16
In Chrome Android version 36 on 2014-07-16
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-28
In Firefox version 6 on 2011-08-16
In Firefox for Android version 6 on 2011-08-16
In Internet Explorer version 11 on 2013-10-17
Not in Node.js
In Quest Browser version 5.0 on undefined
In Opera version 23 on 2014-07-22
In Opera Android version 24 on 2014-09-10
In Safari version 8 on 2014-10-16
In Safari on iOS version 8 on 2014-09-17
In Samsung Internet version 3.0 on 2015-04-10
In WebView Android version 37 on 2014-09-03