How to set up proxy for ios simulator?

As topic.

I run an app in my macbook pro iOS simulator, and I wanner config my app's requests through my http middleware.

so, How to set up iOS simulator http proxy?

I open my System Preferences, and config network proxies like:

and, in my terminal, I start my http middleware:

Web server listening at http://127.0.0.1:8081/
Loading script mitm_script.py
Proxy server listening at http://*:10000

And then, I open my simulator's app.

But, no log appears in my terminal.