Websocket doesn't work

[VivianoRiccardo]

i compiled everything then i tried the code on localhost.

What i did:

I opened a websocket server on 127.0.0.1:8082

run the go server as follows:

./server -p "8083" -x "127.0.0.1:8084"

So, as far as i understood it listens for go clients it tunnels to on 127.0.0.1:8084 and accepts websockets connections on 8083

Then i run a client as follows:

./client -p 8082 -r "127.0.0.1:8084" -sc

It should alert the server (127.0.0.1:8084) that it must tunnels to this client, and the client redirects everything on the websocket server on 127.0.0.1:8082

I Have run a piece of code from the browser that opens a websocket on 127.0.0.1:8083 and this is the error it appears on the go server shell:
2021-04-01 17:34:12.560030599 +0200 CEST - Request: %!(EXTRA string=127.0.0.1:8083 <-> 127.0.0.1:34044) 2021-04-01 17:34:12.560093315 +0200 CEST - H: bytes%!(EXTRA int=537) 2021-04-01 17:34:12.560152436 +0200 CEST - Request: host: localtunnel.net 127.0.0.1:8083 2021-04-01 17:34:12.560192542 +0200 CEST - Router: id for host%!(EXTRA string=, string=127.0.0.1:8083) 2021-04-01 17:34:12.560203094 +0200 CEST - Router: for id: %!(EXTRA string=, string=Router: map[g:0xc82007fd40]) 2021-04-01 17:34:12.560206414 +0200 CEST - Request: coundn't find proxy for%!(EXTRA string=127.0.0.1:8083)

It does not proxy anything to the go client :/

OS: Ubuntu 16.04 lts

From the Chrome developer console this appears:
WebSocket connection to 'ws://127.0.0.1:8083/' failed: Error during WebSocket handshake: net::ERR_INVALID_HTTP_RESPONSE