So it looks like squid3.1.12 does not handle HEAD properly. Having a short glance at the old squid bugs, I did not see anything directly relevant to this. Anyway, as it is an old version, no bug fixes will be done, I guess. So I would suggest you to upgrade at least to very last 3.1.xx and check again. As a supporting action, you might get rid of any configure-pptions, you do not really need: The less code, the less probability of having a bug inside :-) Or, at least first get rid of unused squid-features before upgrading to 3.1.very-last. And, if that does not help, upgrade to 3.4 In case, problem with HEAD still persists, you will be able to file an official bug. My therory still is, that, because of a bug, your squid simply waits for the 211k of real data, which never will show up. -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-3-1-12-hangs-with-HEAD-request-in-LOG-tp4664219p4664305.html Sent from the Squid - Users mailing list archive at Nabble.com.