On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 1 on 2008-12-11
In Chrome Android version 18 on 2012-06-27
In Edge version 79 on 2020-01-15
In Firefox version 4 on 2011-03-22
In Firefox for Android version 4 on 2011-03-29 Note: The property is recognized, but has no effect. See bug 1776834. Removed from Firefox for Android version 79 on 2020-07-28
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
In Opera version 12.1 on 2012-11-20
In Opera Android version 14 on 2013-05-21
In Safari version 3 on 2007-10-26
Not in Safari on iOS Note: The property is recognized, but has no effect. See bug 211994.
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09
Not in WebView on iOS Note: The property is recognized, but has no effect. See bug 211994.