On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 2 on 2009-05-21
In Chrome Android version 18 on 2012-06-27
In Deno version 1.12 on 2021-07-13
In Edge version 12 on 2015-07-28
In Firefox version 41 on 2015-09-22
In Firefox for Android version 41 on 2015-09-22
In Internet Explorer version 10 on 2012-10-26
In Node.js version 10.5.0 on 2018-06-20
In Quest Browser version 5.0 on undefined
In Opera version 10.6 on 2010-07-01
In Opera Android version 11 on 2011-03-22
In Safari version 5 on 2010-06-07
In Safari on iOS version 4.2 on 2010-11-22
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4 on 2013-12-09