http://scache.sourceforge.net/
It is is a full-featured proxy caching server with some features for increasing privacy and offline web browsing. It is a Java based replacement for badly designed browser's cache. This version supports SSL and HTTP/1.1. Main features are: URL filter (no adv. banners), download files in background for later browsing, cookies filter, caching of 'noncachable' pages, multiple logs, can fake Referer, User-Agent and Cookie headers, fast operation, very configurable garbage collection, cached data can be shared between OS/2, Linux and Windows. It can also be used for web forwarding or transparent proxy.
Source: OS/2 Warp News and Rumors