On the standards track: No
Is Experimental: No
Is Deprecated: No
In Chrome version 1 on 2008-12-11 Removed from Chrome version 59 on 2017-06-05
In Chrome Android version 18 on 2012-06-27 Removed from Chrome Android version 59 on 2017-06-06
Not in Edge
Not in Firefox
Not in Firefox for Android
Not in Internet Explorer
Not in Quest Browser
In Opera version 15 on 2013-07-02 Removed from Opera version 46 on 2017-06-22
In Opera Android version 14 on 2013-05-21 Removed from Opera Android version 43 on 2017-09-27
In Safari version 3.1 on 2008-03-18
In Safari on iOS version 3 on 2009-06-17
In Samsung Internet version 1.0 on 2013-04-27 Removed from Samsung Internet version 7.0 on 2018-03-16
In WebView Android version ≤37 on undefined Removed from WebView Android version 59 on 2017-06-06