On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 5 on 2010-05-25
In Chrome Android version 18 on 2012-06-27
In Edge version 12 on 2015-07-28
In Firefox version 1 on 2004-11-09
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 10 on 2012-10-26
In Quest Browser version 5.0 on undefined
In Opera version 11 on 2010-12-16
In Opera Android version 11 on 2011-03-22
In Safari version 5 on 2010-06-07
In Safari on iOS version 3 on 2009-06-17
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09