Debug webpage in Chrome Android App from desktop localhost with port forwarding

Question

I'm following https://developers.google.com/chrome-developer-tools/docs/remote-debugging#reverse-port-forwarding.

My android device shows up in Chrome on my desktop at chrome://inspect.

I have a server running on my desktop. http://localhost:3000 loads fine in Chrome on my desktop.

I tried clicking the port forwarding button and putting in 8080 and localhost:3000 then navigating to http://localhost and http://localhost:3000 in Chrome on Android, but I only got 'could not connect to server' messages. It won't accept 80 and localhost:3000 as valid options.

What do I need to do to be able to view the server on my desktop from my android device?

(Btw if you know the answer to this maybe you can also help with Chrome Remote Debugging a local site on a Virtual Machine with port forwarding)

Answer 1

Looks like there was a bug in Chrome that only allowed ports greater than 5000. See also this possible solution.