On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 4 on 2010-01-25
In Chrome Android version 18 on 2012-06-27
In Edge version 17 on 2018-04-30
In Firefox version 1 on 2004-11-09
In Firefox for Android version 4 on 2011-03-29
Not in Internet Explorer
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 5 on 2010-06-07
In Safari on iOS version 4 on 2010-06-21
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version ≤37 on undefined