On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 1 on 2008-12-11 Note: Before Chrome 66, this method returned null when the element was a child of a host node. See bug 40537452.
In Chrome Android version 18 on 2012-06-27 Note: Before Chrome Android 66, this method returned null when the element was a child of a host node. See bug 40537452.
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 4 on 1997-09-30
In Quest Browser version 5.0 on undefined Note: Before Quest Browser 5.0, this method returned null when the element was a child of a host node. See bug 40537452.
In Opera version ≤12.1 on undefined Note: Before Opera 53, this method returned null when the element was a child of a host node. See bug 40537452.
In Opera Android version ≤12.1 on undefined Note: Before Opera Android 47, this method returned null when the element was a child of a host node. See bug 40537452.
In Safari version 4 on 2009-06-08
In Safari on iOS version 3.2 on 2010-04-03
In Samsung Internet version 1.0 on 2013-04-27 Note: Before Samsung Internet 9.0, this method returned null when the element was a child of a host node. See bug 40537452.
In WebView Android version 4.4 on 2013-12-09 Note: Before WebView Android 66, this method returned null when the element was a child of a host node. See bug 40537452.
In WebView on iOS version 3.2 on 2010-04-03