On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 19 on 2012-05-15
In Chrome Android version 28 on 2013-07-10
In Edge version 12 on 2015-07-28
In Firefox version 19 on 2013-02-19
In Firefox for Android version 19 on 2013-02-19
In Internet Explorer version 9 on 2011-03-14
In Quest Browser version 5.0 on undefined
In Opera version 15 on 2013-07-02
In Opera Android version 15 on 2013-07-08
In Safari version 6 on 2012-07-25
In Safari on iOS version 6 on 2012-09-10
In Samsung Internet version 1.5 on 2013-09-25
In WebView Android version 37 on 2014-09-03