[squid-users] 304 response preventing site from loading

We have encountered a site which does appear to like going through our squid proxy, either regular or transparent mode. I have contacted the company, but was hoping someone here could quickly try this site and tell me if it works through your squid proxy.

http://highered.mcgraw-hill.com/sites/0072421975/student_view0/index.html

It is a school textbook site, and the menus will not load when going through proxy.

We have a transparent proxy which uses WCCP2 from a Cisco Cat6500 to redirect the packets from the clients. I have also disabled wccp and tried a manual proxy config from the browser. The only thing that works is a SNAT from the client through our firewall, which isn't a solution for us.

The squid log shows: (squid 2.6-20)

1285802182.732 403 10.3.0.144 TCP_REFRESH_HIT/304 186 GET http://highered.mcgraw-hill.com/sites/0072421975/student_view0/index.html - DIRECT/204.8.133.213 -
1285802182.906 160 10.3.0.144 TCP_REFRESH_HIT/304 185 GET http://highered.mcgraw-hill.com/olcweb/styles/v2/wheat/css.css - DIRECT/204.8.133.213 -
1285802182.909 166 10.3.0.144 TCP_REFRESH_HIT/304 186 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/shared.css - DIRECT/204.8.133.213 -
1285802182.910 159 10.3.0.144 TCP_REFRESH_HIT/304 186 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/v2_dhtml.js - DIRECT/204.8.133.213 -
1285802182.912 164 10.3.0.144 TCP_REFRESH_HIT/304 186 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/common.js - DIRECT/204.8.133.213 -
1285802182.915 162 10.3.0.144 TCP_MISS/302 544 GET http://www.dushkin.com/web-cgi/olc/nytfeed.pl?DCID=984&N=3 - DIRECT/12.26.55.139 text/html
1285802182.916 163 10.3.0.144 TCP_REFRESH_HIT/304 186 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/v2_functions.js - DIRECT/204.8.133.213 -
1285802182.917 162 10.3.0.144 TCP_REFRESH_HIT/304 184 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/copyright.gif - DIRECT/204.8.133.213 -
1285802182.923 169 10.3.0.144 TCP_MISS/302 558 GET http://www.dushkin.com/web-cgi/olc/gencurrentnews.pl?DCID=984&N=3 - DIRECT/12.26.55.139 text/html
1285802183.071 163 10.3.0.144 TCP_REFRESH_HIT/304 185 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/branding/003366_nopowerweb.gif - DIRECT/204.8.133.213 -
1285802183.074 168 10.3.0.144 TCP_REFRESH_HIT/304 186 GET http://highered.mcgraw-hill.com/sites/dl/free/0072421975/banner/mader_inquiry.gif - DIRECT/204.8.133.213 -
1285802183.081 163 10.3.0.144 TCP_REFRESH_HIT/304 184 GET http://highered.mcgraw-hill.com/olcweb/styles/v2/wheat/nav_divider_small.gif - DIRECT/204.8.133.213 -
1285802183.082 172 10.3.0.144 TCP_REFRESH_HIT/304 184 GET http://highered.mcgraw-hill.com/olcweb/styles/v2/wheat/nav_top.gif - DIRECT/204.8.133.213 -
1285802183.084 162 10.3.0.144 TCP_MISS/302 498 GET http://www.mhcls.com/cls/web-cgi/olc/nytfeed.pl?DCID=984&N=3 - DIRECT/12.26.55.139 text/html
1285802183.087 175 10.3.0.144 TCP_REFRESH_HIT/304 185 GET http://highered.mcgraw-hill.com/olcweb/styles/v2/wheat/nav_closed.gif - DIRECT/204.8.133.213 -
1285802183.088 164 10.3.0.144 TCP_MISS/302 498 GET http://www.mhcls.com/cls/web-cgi/olc/gencurrentnews.pl?DCID=984&N=3 - DIRECT/12.26.55.139 text/html
1285802183.094 158 10.3.0.144 TCP_REFRESH_HIT/304 185 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/server_constants.js - DIRECT/204.8.133.213 -
1285802183.256 158 10.3.0.144 TCP_REFRESH_HIT/304 184 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/spacer.gif - DIRECT/204.8.133.213 -
1285802183.264 164 10.3.0.144 TCP_REFRESH_HIT/304 185 GET http://highered.mcgraw-hill.com/olcweb/styles/shared/nytimeslogo.gif - DIRECT/204.8.133.213 -

Shawn Wright
I.T. Manager
Shawnigan Lake School

Please direct requests for support to helpdesk_at_shawnigan.ca
Received on Wed Sep 29 2010 - 23:26:19 MDT