On the standards track: Yes
Is Experimental: No
Is Deprecated: No
Not in Chrome
In Chrome Android version 55 on 2016-12-06
Not in Edge
In Firefox version 6 on 2011-08-16
In Firefox for Android version 6 on 2011-08-16
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
Not in Opera
In Opera Android version 42 on 2017-01-21
In Safari version 5.1 on 2011-07-20
In Safari on iOS version 4.2 on 2010-11-22
In Samsung Internet version 6.0 on 2017-08-23
In WebView Android version 55 on 2016-12-06