On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 18 on 2012-03-28
In Chrome Android version 18 on 2012-06-27
In Edge version ≤18 on undefined
Not in Firefox
In Firefox for Android version 6 on 2011-08-16
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 10.1 on 2017-03-27
In Safari on iOS version 2 on 2008-07-11
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09