On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 6 on 2010-09-02
In Chrome Android version 18 on 2012-06-27
In Edge version ≤18 on undefined
In Firefox version 16 on 2012-10-09
In Firefox for Android version 16 on 2012-10-09
Not in Internet Explorer
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 6 on 2012-07-25
In Safari on iOS version 10.3 on 2017-03-27
In Samsung Internet version 1.0 on 2013-04-27
Not in WebView Android