Google Drive OAuth Credential Setup fails

I’m using n8n self hosted.
Adding the Google Drive OAuth credentials window shows the given redirect url which contains the port 5678
https://…:5678/…

With that port inside the url Google cant find the server.
I´m always getting a: ERR_CONNECTION_TIMED_OUT

I think that if I could remove the port within the redirect url it would solve my problem.
But I cannot edit the url.

Has anyone an idea how to solve the problem?
I think that I cannot be the only one struggeling here.

thanks in advance!
Tom

Hi @Tom_Jaud

In your environment variables, include this setting.

WEBHOOK_URL=https://yourdomain.com/

What is your self hosted url?

Here is the docker-compose.yml

@Tom_Jaud

Is this what you are using for the redirect?

https://n8n.drgreen.at/rest/oauth2-credential/callback

In n8n it says I have to use this link:

(https://n8n.drgreen.at:5678/rest/oauth2-credential/callback)

And in Google I´ve tried both, with and without port

And this is the /opt/n8n/Caddyfile:

n8n.drgreen.at {
  reverse_proxy n8n:5678
}