Cannot read properties of undefined (reading 'code')

[marcus-pousette]

Running the browser-to-browser example when using a VPN yields following error when connecting to ther other browsers address through the circuit relay.

transport-manager.ts:126 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'code')
    at DefaultTransportManager.dial (transport-manager.ts:126:15)
    at async DialRequest.dialAction (index.ts:350:14)
    at async dial-request.ts:100:18
    at async Promise.any (:5173/index 0)
    at async DialRequest.run (dial-request.ts:85:14)
    at async DefaultDialer.createDialTarget (index.ts:210:26)
    at async DefaultDialer.dial (index.ts:173:12)
    at async DefaultConnectionManager.openConnection (index.ts:504:26)
    at async Libp2pNode.dial (libp2p.ts:369:12)
    at async window.connect.onclick (index.js:114:22)

The dial error is not thrown when I am not behind a VPN and the example works as expected.

Expected behaviour (?). If establishing direct connection with WebRTC fails (because of the VPN), the example should still work nevertheless as I expected the relay would act as a TURN server, or there should be an error message of some sort.

[marcus-pousette]

js-libp2p-webrtc/src/peer_transport/util.ts

Line 56 in 2f8faa3

promise.reject()

this is the issue, should be something like (?)

promise.reject(errCode(new Error("failed to establish connection"),"ERR_FAILED_TO_ESTABLISH_CONNECTION"))

[achingbrain]

That was the issue, rejecting without passing a reason/error.

Fixed in #160