Can't access proxyied service

I set up two proxy-services.

One is the pocked-id on my selfhosted netbird vServer, that I set up like brandon showed here:

Now I tried to expose another service, but from my homenas.
It looks like this:

but I can’t access it on share.mydomain.com
On the local IP with Port I can access erugo

Okay, now I replaced the Resource (Shouldn’t it be named Target?)
from the Resource truenas with the net-IP to the Peer truenas with the Netbird-IP

Now I can access erugo on that URL, but the Authentification is not working.
I tried to set a password and a pin, but the side comes up without asking for the pin or for the password.

Now, I tried the URL from a device, that is not connected to my BirdNet. There I get the Authentificationpage. Is it right, that you don’t get the authentification, when you are conneced to the BirdNet?

Should be right based on either an existing cookie or a jwt token. As it’s able to confirm “oh hey I know you”