Hi Again, 2010/6/10 Felipe W Damasio <felipewd@xxxxxxxxx>: > Is this true? If I don't add "ignore_expect_100" the HTTP request > with it will _always_ fail? > > If this is right, why is that? I don't get it. I checked the RFC2616 that the ignore_expect_100 directive talked about, but there it contains: " - If a proxy receives a request that includes an Expect request- header field with the "100-continue" expectation, and the proxy either knows that the next-hop server complies with HTTP/1.1 or higher, or does not know the HTTP version of the next-hop server, it MUST forward the request, including the Expect header field." http://www.w3.org/Protocols/rfc2616/rfc2616-sec8.html So shouldn't squid (somehow) know that the www.megaupload.com webserver complies with HTTP/1.1 so that it can forward the request with the header? Even it doesn't (or can't) know, shouldn't it forward it as well (falling on the "does not know the HTTP version of the next-hop server" option)? Cheers, Felipe Damasio