On the standards track: Yes
Is Experimental: No
Is Deprecated: No
Not in Chrome
In Chrome Android version 25 on 2013-02-27
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-28
In Firefox version 15 on 2012-08-28
In Firefox for Android version 15 on 2012-08-28
In Internet Explorer version 10 on 2012-10-26
In Node.js version 8.5.0 on 2017-09-12
In Quest Browser version 5.0 on undefined
In Opera version 15 on 2013-07-02
In Opera Android version 14 on 2013-05-21
In Safari version 8 on 2014-10-16
In Safari on iOS version 9 on 2015-09-16
In Samsung Internet version 1.5 on 2013-09-25
In WebView Android version 4.4 on 2013-12-09