Where do those WebRTC Adapter.js states come from?

Question

I stumbled upon the following errors while debugging my WebRTC app and I cannot figure out what they mean:

Uncaught (in promise) Failed to set remote answer sdp: Called in wrong state: STATE_INPROGRESS

and

Uncaught (in promise) Failed to set remote answer sdp: Called in wrong state: STATE_INIT

Which state is it that's supposed to be wrong?

Answer 1

I believe you are getting this error because you are trying to set the SDP answer in the wrong state. Take a look at this document. It should clarify things for you. State diagram (taken from that document):