On the standards track: Yes
Is Experimental: No
Is Deprecated: Yes
In Chrome version 10 on 2011-03-08
In Chrome Android version 18 on 2012-06-27
Not in Deno
In Edge version 12 on 2015-07-28
In Firefox version 7 on 2011-09-27
In Firefox for Android version 7 on 2011-09-27
In Internet Explorer version 9 on 2011-03-14
Not in Node.js
In Quest Browser version 5.0 on undefined
In Opera version 15 on 2013-07-02
Not in Opera Android
In Safari version 8 on 2014-10-16
In Safari on iOS version 9 on 2015-09-16
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version ≤37 on undefined