Today I was happy to learn about Proxydomo, meaning Proxomitron's legacy is alive and well on Windows. On the downside the website is a touch Japanese, but they have a less well-maintained English page here (https://www31.atwiki.jp/lafe/pages/44.html).
■はじめに
このソフトはローカルで動くプロクシフィルタリングソフトです
作成にあたりオープンソースのProximodoを使って作られています。
windows10 64bitで動作を確認
たぶん xp / vista / 7 / 8.1 でも動くはず
■ Introduction
This software is a local proxy filtering software
It is made using open source Proximodo for creation.
Confirm operation with windows 10 64bit
Maybe it should work with xp / vista / 7 / 8.1
The Linux Proxomitron alternative is Privoxy, for those who'd like to dabble in these things. You can chain it with Squid to get around idiotic browser behaviors.
But when you press refresh we in the past have revalidated even fresh things (i.e. with a high max age) to check to see if they were still the most current.