Caching policy?

Colman Reilly (
Fri, 01 Sep 1995 10:00:08 +0100

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Is there a recommended caching policy for proxies? The algorithm that
suggests itself to me is to check the expiry date for the cached document
and if it's still in date use it, otherwise send a conditional GET.

I assume that there have been discussions of this: is there a reference to
a summary anywhere?