docker port trouble

[RyoIshikawa-h]

Thanks for the great development.
When I create an environment with docker container in wsl on windows, if the port number mapped in docker-compose.yml and the port number described in server.js are the same, the server cannot start and does not output any errors. I imagine this is related to something in this library. Do you have any idea what it could be?

For example, in the following example, node server.js will not start, and i must either change the mapping to 8080:8081 or devise a way to change the port specification in server.js to 8082.

version: '3' services: app: container_name: app build: context: . dockerfile: Dockerfile restart: always tty: true volumes: - type: bind source: . target: /app ports: - 8080:8080

[RyoIshikawa-h]

Sorry, my lack of web development knowledge was not the problem with this library.
I had to specify the server.js host as 0.0.0.0.
thank you.