On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 23 on 2012-11-06
In Chrome Android version 25 on 2013-02-27
In Edge version 12 on 2015-07-28
In Firefox version 65 on 2019-01-29
In Firefox for Android version 65 on 2019-01-29
In Internet Explorer version 4 on 1997-09-30
In Quest Browser version 5.0 on undefined
In Opera version ≤12.1 on undefined
In Opera Android version ≤12.1 on undefined
Not in Safari
Not in Safari on iOS
In Samsung Internet version 1.5 on 2013-09-25
In WebView Android version 4.4 on 2013-12-09