> I tried using the same browser but when using my squid proxy > that error > comes out when you on the next page to submit registration. > But When I don't use the squid proxy by bypassing it, no such > error, so I am > suspecting that the squid might be the cause. Ok, I can see it now; since I took the next step too; in the registration application.
I basically see this as a problem with the remote application and would inform the webmaster of that site of it, if I where you. Possibly the squid proxy cache includes some headers which the remote application/server does not understand, hence the crash. Simply tell them that their application is not compatible with web proxy/caching solutions. You may do tests yourself by deleting squid induced headers using the header_access directive in squid.conf. But that will be of course a matter of time investment from your side. M.