On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 20 on 2012-06-26
In Chrome Android version 33 on 2014-02-26
In Edge version 12 on 2015-07-28
In Firefox version 4 on 2011-03-22
Not in Firefox for Android
In Internet Explorer version 10 on 2012-10-26
In Quest Browser version 5.0 on undefined
In Opera version 9.5 on 2008-06-12
In Opera Android version 20 on 2014-03-06
In Safari version 12.1 on 2019-03-25
In Safari on iOS version 12.2 on 2019-03-25
In Samsung Internet version 2.0 on 2014-10-17
In WebView Android version 4.4.3 on 2014-06-02