Hi Henrik, The attached zip file contains the tcpdump data and the corresponding squid cache log. I have a feeling that the cause of the ERR_ZERO_SIZE_OBJECT seems related to the previous POST request with url http://osiris.voicegenie.com:8080/conformance/vxml-srgs-voicegenie/278/cgi-bin/record5.ircgi. And it's odd that I could not find the corresponding frame in the tcpdump data for this POST request. Thanks, Katie (Xin) Wang ________________________________ From: Henrik Nordstrom [mailto:henrik@xxxxxxxxxxxxxxxxxxx] Sent: Wed 8/16/2006 3:15 PM To: Xin Wang Cc: squid-users@xxxxxxxxxxxxxxx Subject: RE: Why ERR_ZERO_SIZE_OBJECT? ons 2006-08-16 klockan 14:20 -0700 skrev Xin Wang: > osiris.voicegenie.com is a host in our internal network. I don't think you are able to access it. Ok. Hard to test then.. > Are you able to figure out the error ERR_ZERO_SIZE_OBJECT based on the cache.log I provided? or what else info do you need? ERR_ZERO_SIZE_OBJECT says that the web server closed the connection before Squid had received any HTTP headers. Best information for diagnosis is a ethereal (or tcpdump -s 1600 -w filename.pcap) packet capture of the traffic. Preferably both sides of Squid. Regards Henrik