Docker Compose and Nginx reverse proxy: I can't access the backend through the proxy

docker nginx docker-compose nginx-reverse-proxy jwilder-nginx-proxy

To everyone having the same problem, here is the solution:

Delete the access control settings from the nginx config. And Hande the cors within the Nodejs App.
If you work with 'localhost' in your nginx.conf configure your NodeJs Express app to work with ipv6 ( instead of .listen('localhost') put .listen('::')).
If this problem persist, make sure that you made the first two steps and switch your network mode to host:If you are using Docker compose v2 add 'network_mode : host' for each container. or --network=host for docker run.

CodeHunter