Problem Description

#4739
I am using mitmdump in transparent mode, but all the host names are displayed by IP address, so when I used the showhost option, the host names are displayed for some hosts but not for Instagram app on Android.
This is probably because the Host header is not present.
We need an alternative.

10.8.0.7:55042 <- tcp <- 157.240.209.23:443
10.8.0.7:55042 <- tcp <- 157.240.209.23:443
10.8.0.7:55042 -> tcp -> 157.240.209.23:443
10.8.0.7:55042 -> tcp -> 157.240.209.23:443
10.8.0.7:55042 -> tcp -> 157.240.209.23:443
10.8.0.7:55042 <- tcp <- 157.240.209.23:443
10.8.0.7:55042 <- tcp <- 157.240.209.23:443

Steps to reproduce the behavior:

1. Start Mitmproxy in transparent mode.
2. Send a request that is missing the Host header.

System Information

Mitmproxy: 10.4.2
Python: 3.10.15
OpenSSL: OpenSSL 3.3.2 3 Sep 2024
Platform: Linux-6.8.0-45-generic-x86_64-with-glibc2.39