Dear all, We have a Squid (2.6) server installed as a reverse proxy and connected to an original-server that uses the "Expire" header field to specify when the response should be considered stale.
If the client requests includes a "no-cache" cache-control directive can we assume that Squid will be forced to *reload* the cached object with a fresh response returned by the original server (assuming that the response has a new expiration date set)? The HTTP header specification (http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.4) says that "the server MUST NOT use a cached copy when responding to such a request" but does not say what should happen with the current cached object. Would it be replaced by new response? What would be the behavior of Squid in case of "max-age=0" request directive (assuming again that the response has a newer expiration date set)? Thanks, Chris Christian Tzolov | Senior Software Developer - Content & Services | TomTom |
