I figured out what I was doing wrong. I was running squid2 and upgraded to squid3.3.3. Squid3 was installed in the /etc/squid3 directory which is different than the previous /etc/squid. I needed to modify /etc/squid3/squid.conf configuration. The setting request_header_add is working now. Thanks. -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Empty-macros-in-request-header-add-for-SSL-connections-Squid-3-3-3-tp4659578p4659849.html Sent from the Squid - Users mailing list archive at Nabble.com.