On the standards track: No
Is Experimental: No
Is Deprecated: No
In Chrome version 3 on 2009-09-15
In Chrome Android version 18 on 2012-06-27
In Edge version 79 on 2020-01-15
Not in Firefox
Not in Firefox for Android
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
In Opera version 15 on 2013-07-02
In Opera Android version 15 on 2013-07-08
In Safari version 5 on 2010-06-07 Removed from Safari version 15 on 2021-09-20
In Safari on iOS version 5 on 2011-10-12 Removed from Safari on iOS version 15 on 2021-09-20
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 37 on 2014-09-03