Connect to Flask localhost server through proxy IP
You need to configure flask to run on 127.0.0.1 and in your proxy settings you need to enable: "bypass proxy for local address" otherwise you are trying to access localhost on the proxy and not on your local machine.
If you want to access your flask instance via a proxy that is outside of you local network you need to: - Run flask on 0.0.0.0:8888 (or another port) - From your home router, forward port 8888 to the machine running flask - From your browser use your external IP address (google "what is my ip") + the 8888 port to access your flask app
IMPORTANT NOTE: Doing it like described in the second solution is opening your application to the world, so be careful.