On the standards track: No
Is Experimental: No
Is Deprecated: Yes
Not in Chrome
Not in Chrome Android
Not in Deno
In Edge version 13 on 2015-11-12 Removed from Edge version 79 on 2020-01-15
In Firefox version 28 on 2014-03-18
In Firefox for Android version 28 on 2014-03-18
Not in Internet Explorer
Not in Node.js
Not in Quest Browser
Not in Opera
Not in Opera Android
Not in Safari
Not in Safari on iOS
Not in Samsung Internet
Not in WebView Android