Hello, I want to hide squid's OWN reply header . I have tested following config acl squid_server rep_header Server squid reply_header_access Server deny squid_server reply_header_replace Server Foo/1.0 But got the error "ACL is used in context without an HTTP response. Assuming mismatch." The only thing that works is following but it hide all Server headers . I just want to remove if it is from squid's own . reply_header_access Server deny all HTTP/1.1 400 Bad Request =========== Server: squid =========== Mime-Version: 1.0 Date: Sun, 28 Aug 2016 09:00:12 GMT Content-Type: text/html;charset=utf-8 Content-Length: 0 X-Cache: MISS from cache1 X-Cache-Lookup: NONE from cache1:3128 Connection: close -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/reply-header-access-Server-deny-IF-Server-squid-tp4679338.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