This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The RTCPeerConnection.onidpassertionerror event handler is a property containing the code to execute whent the idpassertionerror event, of type RTCIdentityErrorEvent, is received by this RTCPeerConnection. Such an event is sent when the associated identity provider (IdP) encounters an error while generating an identity assertion.

This event handler is deprecated. You should instead detect IdP assertion errors by handling rejection of the promise returned by RTCPeerConnection.peerIdentity.


peerconnection.onidpassertionerror = function;


  • function is the name of a user-defined function, without the () suffix or any parameters, or an anonymous function declaration, such as function(event) {...}. An event handler always has one single parameter, containing the event, here of type RTCIdentityErrorEvent.


pc.onidpassertionerror = function(ev) { alert("onidpassertionerror event detected!"); };

Browser compatibility

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See also