Thanks Amos, Good to know the MIME types are forwarded if the payload is being relayed. What will be the expectation on the http custom headers, such as 'X-Request-ID', or 'X-Serial-Number' if they are set from client, during the proxy relay process, will those also be forwarded unchanged or is it possible only some of the well-known ones being honored for squid or other types of proxies? thanks. - George -- Sent from: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-Users-f1019091.html _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users