On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 26 on 2013-03-26
In Chrome Android version 26 on 2013-04-03
In Edge version 12 on 2015-07-28
In Firefox version 4 on 2011-03-22
In Firefox for Android version 4 on 2011-03-29
Not in Internet Explorer
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
Not in Safari
Not in Safari on iOS
In Samsung Internet version 1.5 on 2013-09-25
In WebView Android version 4.4 on 2013-12-09