On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 46 on 2015-10-13
Not in Chrome Android
In Edge version 12 on 2015-07-28
In Firefox version 3.5 on 2009-06-30
In Firefox for Android version 4 on 2011-03-29
Not in Internet Explorer
Not in Quest Browser
In Opera version 12 on 2012-06-14
Not in Opera Android
In Safari version 3.1 on 2008-03-18
Not in Safari on iOS
Not in Samsung Internet
Not in WebView Android