~# dpkg -l | grep squid
ii squid 3.3.8-1ubuntu17 amd64 dependency package from squid to squid3
ii squid-langpack 20150704-1 all Localized error pages for Squid
ii squid3 3.3.8-1ubuntu17 amd64 Full featured Web Proxy cache (HTTP proxy)
ii squid3-common 3.3.8-1ubuntu17 all Full featured Web Proxy cache (HTTP proxy) - common files
ii squidguard 1.5-5 amd64 filter and redirector plugin for Squid
I get the same Output in /var/log/ squid3/ cache.log:
2016/04/04 07:28:17 kid1| ERROR: URL-rewrite produces invalid request: GET ERR HTTP1.1
~# dpkg -l | grep squid
ii squid 3.3.8-1ubuntu17 amd64 dependency package from squid to squid3
ii squid-langpack 20150704-1 all Localized error pages for Squid
ii squid3 3.3.8-1ubuntu17 amd64 Full featured Web Proxy cache (HTTP proxy)
ii squid3-common 3.3.8-1ubuntu17 all Full featured Web Proxy cache (HTTP proxy) - common files
ii squidguard 1.5-5 amd64 filter and redirector plugin for Squid