On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 34 on 2014-04-08
In Chrome Android version 34 on 2014-04-02
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-28
In Firefox version 25 on 2013-10-29
In Firefox for Android version 25 on 2013-10-29
Not in Internet Explorer
In Node.js version 0.12.0 on 2015-02-06
In Quest Browser version 5.0 on undefined
In Opera version 21 on 2014-05-06
In Opera Android version 21 on 2014-04-22
In Safari version 9 on 2015-09-30
In Safari on iOS version 9 on 2015-09-16
In Samsung Internet version 2.0 on 2014-10-17
In WebView Android version 37 on 2014-09-03