On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 1 on 2008-12-11
In Chrome Android version 18 on 2012-06-27
In Edge version 13 on 2015-11-12
In Firefox version 78 on 2020-06-30
In Firefox for Android version 79 on 2020-07-28
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
In Opera version 9 on 2006-06-20
In Opera Android version 10.1 on 2010-11-09
In Safari version 4 on 2009-06-08
In Safari on iOS version 3.2 on 2010-04-03
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09
In WebView on iOS version 3.2 on 2010-04-03