Most of the times you don’t want to show off the proxy server reference in your web requests despite the fact that it’s main purpose of any proxy software, for many reasons. With Squid 2.6, its quite easy to do. Add this to squid.conf.

via off
forwarded_for off

And then the below ‘via’ entity would disappear from web header requests being sent from a web browser making recipient webservers unaware of the intermediary proxy location, you’re coming from!