On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 38 on 2014-10-07
In Chrome Android version 38 on 2014-10-08
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-28
In Firefox version 34 on 2014-12-01
In Firefox for Android version 34 on 2014-12-01
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 25 on 2014-10-15
In Opera Android version 25 on 2014-10-16
In Safari version 9 on 2015-09-30
In Safari on iOS version 9 on 2015-09-16
In Samsung Internet version 3.0 on 2015-04-10
In WebView Android version 38 on 2014-10-08