Intercepting .NET Application Requests with mitmproxy on Arch Linux - TLS Connection Errors

Question

I'm trying to intercept HTTP/HTTPS requests made by a .NET application on Arch Linux using mitmproxy. While I can intercept some requests, I frequently encounter errors like TLS handshake failed or TLS connection closed. Interestingly, I also tried using HTTP Toolkit, and it works flawlessly without any issues. I followed the mitmproxy documentation to set everything up, but I'm still facing these errors.

Here’s what I’ve done so far:

1. Set up CA certificates: I followed the mitmproxy documentation to install the mitmproxy CA certificate on my system.
2. Launched the .NET application with proxy settings: I launched the .NET application from the terminal after setting up HTTP_PROXY and HTTPS_PROXY (both smaller case and uppercase) and SSL_CERT_FILE environment variables.