On the standards track: No
Is Experimental: No
Is Deprecated: No
In Chrome version 5 on 2010-05-25
In Chrome Android version 18 on 2012-06-27
Not in Deno
In Edge version 12 on 2015-07-28
In Firefox version 16 on 2012-10-09 Removed from Firefox version 102 on 2022-06-28
In Firefox for Android version 16 on 2012-10-09 Removed from Firefox for Android version 102 on 2022-06-28
In Internet Explorer version 9 on 2011-03-14
In Node.js version 8.0.0 on 2017-05-30
In Quest Browser version 5.0 on undefined
In Opera version 11 on 2010-12-16
In Opera Android version 11 on 2011-03-22
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
In WebView Android version ≤37 on undefined