[Error] Bad Url when the server is behind a revere proxy with different port

[a4amado]

I have two servers

1. express server port 3001
2. nextjs server port 3000

and nginx reverse proxy server 5000

when logging, nextjs throws error Bad URL bc the internal url http://localhost:3000 is dofferent from the exposed port http://localhost:5000

I tries to over write it using NEXT_AUTH_URL="http://localhost:5000" NEXTAUTH_URL_INTERNAL="http://localhost:5000"
but with no luck