On the standards track: No
Is Experimental: No
Is Deprecated: Yes
In Chrome version 1 on 2008-12-11 Removed from Chrome version 39 on 2014-11-18
In Chrome Android version 18 on 2012-06-27 Removed from Chrome Android version 39 on 2014-11-12
In Edge version 12 on 2015-07-28 Removed from Edge version 79 on 2020-01-15
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 26 on 2014-12-03
In Opera Android version 14 on 2013-05-21 Removed from Opera Android version 26 on 2014-12-02
In Safari version 4 on 2009-06-08
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 4.0 on 2016-03-11
In WebView Android version ≤37 on undefined Removed from WebView Android version 39 on 2014-11-12