I've recently been made aware that Apache supports something called "end-to-end reload" (apparently documented in http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.4) .

I'm curious if Squid exhibits similar behavior.

The way the Apache developers appear to interpret this spec, a *request* containing a "Cache-Control: no-cache" header will essentially "purge" the Apache's cache during a forced reload request to the backend. Previously I had assumed that a client-initiated forced reload would just bypass any proxy caches without touching the cached entries themselves, except for the client's cache. Is this not the way Squid behaves?

Ric


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