On the standards track: Yes
Is Experimental: Yes
Is Deprecated: No
In Chrome version 22 on 2012-09-25
In Chrome Android version 25 on 2013-02-27
In Edge version 79 on 2020-01-15
In Firefox version 3 on 2008-06-17
In Firefox for Android version 4 on 2011-03-29
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
In Opera version 15 on 2013-07-02
In Opera Android version 14 on 2013-05-21
In Safari version 7 on 2013-10-22
In Safari on iOS version 7 on 2013-09-18
In Samsung Internet version 5.0 on 2016-12-15
In WebView Android version 4.4 on 2013-12-09