On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 34 on 2014-04-08
In Chrome Android version 34 on 2014-04-02
In Edge version 12 on 2015-07-29
In Firefox version 3 on 2008-06-17
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 5.5 on 2000-07-06
In Quest Browser version 5.0 on undefined
In Opera version 21 on 2014-05-06
In Opera Android version 21 on 2014-04-22
In Safari version 7 on 2013-10-22 Note: Only supported for HTMLDocument, not all Document objects.
In Safari on iOS version 7 on 2013-09-18 Note: Only supported for HTMLDocument, not all Document objects.
In Samsung Internet version 2.0 on 2014-10-17
In WebView Android version 37 on 2014-09-03
In WebView on iOS version 7 on 2013-09-18 Note: Only supported for HTMLDocument, not all Document objects.