Option Name:url_rewrite_host_header
Default Value:url_rewrite_host_header on
Suggested Config:

	By default Squid rewrites any Host: header in redirected
	requests.  If you are running an accelerator this may
	not be a wanted effect of a redirector.

	WARNING: Entries are cached on the result of the URL rewriting
	process, so be careful if you have domain-virtual hosts.