Docs for how to use the dev proxying feature with the local network feature, if possible

[osdiab]

Is your proposal related to a problem?

For my web app I use http-proxy-middleware as mentioned in the CRA docs in a setupProxy.js file to proxy API requests to a locally running API server like so:

  app.use(proxy("/api", { target: "http://localhost:8000/" }));

However when running create-react-app it also offers that you can access your site on your local network via an IP address, for example to test the experience on a mobile device. This feature doesn't seem to be compatible with the proxying approach as I'm using above, which I think is because that localhost URL isn't being rewritten to the IP address either (and i'm not sure if a different port will be forwarded as well).

Spectrum thread for my use case here.

Describe the solution you'd like

If this is possible I would love for the proxying docs to explain how to make these two features work together in harmony.

Describe alternatives you've considered

I tried messing around with settings passed to http-proxy-middleware, but I'm having trouble coming up with something that works.

Additional context

Thanks for the great project and hope this helps in making it even greater!