On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 4 on 2010-01-25
In Chrome Android version 18 on 2012-06-27
In Edge version 12 on 2015-07-28
In Firefox version 2 on 2006-10-24
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 11 on 2013-10-17
In Quest Browser version 5.0 on undefined
In Opera version 9 on 2006-06-20
Not in Opera Android
In Safari version 3.1 on 2008-03-18
Not in Safari on iOS
In Samsung Internet version 4.0 on 2016-03-11
In WebView Android version 38 on 2014-10-08