On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 31 on 2013-11-12
In Chrome Android version 31 on 2013-11-14
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-28
In Firefox version 29 on 2014-04-29
In Firefox for Android version 29 on 2014-04-29
In Internet Explorer version 10 on 2012-10-26
In Node.js version 10.5.0 on 2018-06-20
In Quest Browser version 5.0 on undefined
In Opera version ≤12.1 on undefined
In Opera Android version ≤12.1 on undefined
In Safari version 7 on 2013-10-22
In Safari on iOS version 7 on 2013-09-18
In Samsung Internet version 2.0 on 2014-10-17
In WebView Android version 4.4.3 on 2014-06-02