Big issue on all Squid that we have (2.5 and 3.0) on a web site with IE8/IE9

[Noc Phibee Telecom <noc@xxxxxxxxxxxxxxxxxx>]

Hi,



We have a big issue with our squid proxy. We browse this website 
(http://www.laroutedulait.fr) through squid 3.0. We get a blue 
background and nothing else ( using IE8 & 9 ).
Using Firefox it works well – problem is that firefox is not our 
validated browser …


No errors in log. a Idea of the problems ?

Thanks in advance for your help.
Jerome