If I belive correctly this can block ones running "phproxy" when you hit "Surf" it examines POST Call in the HTTP headers and find the calling cards that only phproxy would have and block it.This one here doesn't use POST call and has nothing in the headers. It uses a GET right away when you surf, so the filter will just see GET /something.php?=odufidufiudfudinstead of POST /facebook.com
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