For learning and testing purposes I'd like to change the UserAgent in the HTTP header.
In the desktop Firefox it is simple: there is an add-on for this task. But on android... it is impossible. I thought, I will setup a proxy (privoxy for example) and it will change that header.
Yes, I know, most of the servers are using SSL/TLS, and modification of that communication is nearly impossible, but... I have seen the traffic between my client and server (with Wireshark) and... the CONNECT is in plain text, an it contains the UserAgent. The privoxy can change it, while I use HTTP, but can't when my server uses HTTPS...
Have you got any idea, why and how can I ask it, to do that change?