Squid does not work

[Tikimotel]

Have you tried setting the logging option to either "Encode" or "Allow" ?

strip: The whitespace characters are stripped out of the URL. This is the behavior recommended by RFC2396.
deny: The request is denied. The user receives an "Invalid Request" message.
allow: The request is allowed and the URI is not changed. The whitespace characters remain in the URI.
encode: The request is allowed and the whitespace characters are encoded according to RFC1738.
chop:The request is allowed and the URI is chopped at the first whitespace.

With "squid3-dev" you could try with "forwarded_for transparent" typed into "Custom ACLS (Before_Auth)" field (and with the "Disable X-Forward" not selected off course.)