On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 30 on 2013-10-01
In Chrome Android version 30 on 2013-10-02
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-28
In Firefox version 31 on 2014-07-22
In Firefox for Android version 31 on 2014-07-22
In Internet Explorer version 10 on 2012-10-26
In Quest Browser version 5.0 on undefined
In Opera version 17 on 2013-10-08
In Opera Android version 18 on 2013-11-20
In Safari version 8 on 2014-10-16
In Safari on iOS version 8 on 2014-09-17
In Samsung Internet version 2.0 on 2014-10-17
In WebView Android version 4.4 on 2013-12-09