Use the event name in methods likeaddEventListener(), or set an event handler property.

addEventListener("error", (event) => { })onerror = (event) => { }

AnRTCErrorEvent. Inherits fromEvent.

In addition to the standard properties available on theEvent interface,RTCErrorEvent also includes the following:

errorRead only

AnRTCError object specifying the error which occurred; this object includes the type of error that occurred, information about where the error occurred (such as which line number in theSDP or whatSCTP cause code was at issue).

Transport-level errors will have one of the following values for the specified error'sRTCError propertyerrorDetail:

dtls-failure

The negotiation of theDTLS connection failed, or the connection was terminated with a fatal error. The error'smessage contains details about the nature of the error. If a fatal error isreceived, the error object'sreceivedAlert property is set to the value of the DTLSL alert received. If, on the other hand, a fatal error wassent, thesentAlert is set to the alert's value.

fingerprint-failure

The remote certificate for theRTCDtlsTransport didn't match any of the fingerprints listed in the SDP. If the remote peer can't match the local certificate against the provided fingerprints, this error doesn't occur, though this situation may result instead in adtls-failure error.

In this example, theonerror event handler property is used to set the handler for theerror event.

transport.onerror = (ev) => {  const err = ev.error;  // …};

• WebRTC API