Hello, It seems rep_header does not work at all. acl mshit rep_header X-SHMSCDN . acl mshit rep_header Content-Type -i text\/html acl html rep_header Content-Type -i ^text\/html acl apache rep_header Server ^Apache debug_options 28,3 Other types of acl works fine the log is very huge because of thousands of clients . Squid Object Cache: Version 3.5.19 Official Debian Package Ubuntu Linux 16.04 4.4.0-28-generic on x86_64 -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/rep-header-not-working-tp4678561.html Sent from the Squid - Users mailing list archive at Nabble.com. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users