On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Bun version 1.0.0 on 2023-09-08
In Chrome version 5 on 2010-05-25
In Chrome Android version 18 on 2012-06-27
In Deno version 1.0 on 2020-05-13
In Edge version 12 on 2015-07-29
In Firefox version 4 on 2011-03-22
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 9 on 2011-03-14 Note: In Internet Explorer 8, this was only supported on DOM objects and with some non-standard behaviors. This was later fixed in Internet Explorer 9.
In Node.js version 0.10.0 on 2013-03-11
In Quest Browser version 5.0 on undefined
In Opera version 11.6 on 2011-12-06
In Opera Android version 12 on 2012-02-25
In Safari version 5.1 on 2011-07-20 Note: Also supported in Safari 5, but not on DOM objects.
In Safari on iOS version 6 on 2012-09-10 Note: Also supported in Safari for iOS 4.2, but not on DOM objects.
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09
In WebView on iOS version 6 on 2012-09-10 Note: Also supported in Safari for iOS 4.2, but not on DOM objects.