On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 21 on 2012-07-31
In Chrome Android version 25 on 2013-02-27
In Edge version 12 on 2015-07-28
In Firefox version 16 on 2012-10-09
In Firefox for Android version 16 on 2012-10-09
In Internet Explorer version 5.5 on 2000-07-06
In Quest Browser version 5.0 on undefined
In Opera version ≤12.1 on undefined
In Opera Android version ≤12.1 on undefined
In Safari version 7 on 2013-10-22
In Safari on iOS version 7 on 2013-09-18
In Samsung Internet version 1.5 on 2013-09-25
In WebView Android version 4.4 on 2013-12-09