On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 24 on 2013-01-10
In Chrome Android version 25 on 2013-02-27
In Edge version 15 on 2017-04-05
In Firefox version 38 on 2015-05-12 Note: Although the onnegotiationneeded property is supported, the negotiationneeded event is never fired.
In Firefox for Android version 38 on 2015-05-12 Note: Although the onnegotiationneeded property is supported, the negotiationneeded event is never fired.
Not in Internet Explorer
In Quest Browser version 5.0 on undefined
In Opera version 15 on 2013-07-02
In Opera Android version 14 on 2013-05-21
In Safari version 11 on 2017-09-19
In Safari on iOS version 11 on 2017-09-19
In Samsung Internet version 1.5 on 2013-09-25
In WebView Android version 4.4 on 2013-12-09
In WebView on iOS version 11 on 2017-09-19