[kristopolous]

back in the day I used RabbIT which handled both the https/http and the png problem but it looks like it hasn't been updated in years. It looks like squid can do the https problem (https://wiki.squid-cache.org/Features/HTTPS).

This actually doesn't looks as easy to do in 2020 as it was in 2009. I also had luck at chaining proxies that did different features as well so one would do a certain transformation and pass it off to another etc.

I've also done partial implementations just using php ... you can preg_replace most things and it more or less works.

But yes I had assumed things had gotten easier but apparently they've actually become more difficult.