Hi all, I am using squid 2.7.stable9 , and gzip compression in the origin servers (IIS) Whenever a client requests a compressed resource for the first time (assume a new url/resource) it is cached and the compressed version is served to the clients requesting the compressed version of the resource. Everything works fine till now, but when one client request the UNcompressed version of the resource/url - no matter the TTL of the resource (even if it is one year or more) - the request ends up to the origin (miss) the Uncompressed version is fetched,cached and served to the client and the following clients even if they request the compressed version. I even tried to specific request a compressed version of the resource with WFETCH and the appropriate request headers (Accept-Encoding: gzip) but I am still getting the Uncompressed version of the resource (me and the rest clients requesting the resource) This happening with all my resources - no matter of mime type. Any ideas.. Thanks in advance, George