On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 29 on 2013-08-20
In Chrome Android version 29 on 2013-08-21
In Edge version 12 on 2015-07-28
In Firefox version 12 on 2012-04-24
In Firefox for Android version 14 on 2012-06-26
In Internet Explorer version 8 on 2009-03-19
In Quest Browser version 5.0 on undefined
Not in Opera
Not in Opera Android
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 on 2013-12-09