On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 25 on 2013-02-21
In Chrome Android version 25 on 2013-02-27
In Edge version 12 on 2015-07-28
Not in Firefox
Not in Firefox for Android
In Internet Explorer version 8 on 2009-03-19
In Quest Browser version 5.0 on undefined
In Opera version 9.2 on 2007-04-11
In Opera Android version 14 on 2013-05-21
In Safari version 1.3 on 2005-04-15
In Safari on iOS version 1 on 2007-06-29
In Samsung Internet version 1.5 on 2013-09-25
In WebView Android version 4.4 on 2013-12-09