Recently my web proxy working fine and on previous version upto OPNsense 17.1.1 version.
i setup ACL (Access Control List on web proxy or squid)
=before i can add and allow whitelist and blacklist, even (Block specific MIME type reply) was working before but due to update its not working anymore it blocks or i cant download .iso .exe and .torrent files anymore even those was already removed to blacklist, with previous version its working fine.