Hi Freddy,
I didn't have the time to try it yet, but I was checking the NGINX documentation.
In the docker guide, we set `proxy_set_header X-Forwarded-Host $proxy_add_x_forwarded_for` but that seems wrong to me. I need to check that if everything is ok there (and ask if someone can update the guide). The reason the docker guide is working, is because it is forcing the host header with: `proxy_set_header Host $host` (and I think it is not using the Reverse proxy settings in Indicium).
Can you change the line in the configuration to `proxy_set_header X-Forwarded-Host $host` (instead of the $proxy_add_x_forwarded_for)?
I will create a reproduction environment in the meantime.