On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome from the start
In Chrome Android from the start
In Edge from the start
In Firefox version 31 on 2014-07-22
In Firefox for Android version 31 on 2014-07-22
Not in Internet Explorer
In Quest Browser from the start
In Opera from the start
In Opera Android from the start
In Safari from the start
In Safari on iOS from the start
In Samsung Internet from the start
In WebView Android from the start