W3C home > Mailing lists > Public > ietf-http-wg@w3.org > October to December 1995

Re: rethinking caching

From: Daniel W. Connolly <connolly@beach.w3.org>
Date: Wed, 20 Dec 1995 13:15:56 -0500
Message-Id: <m0tST3U-0002UXC@beach.w3.org>
To: David Robinson <drtr1@cus.cam.ac.uk>
Cc: masinter@parc.xerox.com, http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
In message <m0tSQLW-000DJMC@ursa.cus.cam.ac.uk>, David Robinson writes:
>>Most of the current proposals for headers back and forth don't handle
>>this situation correctly. Yet a straight-forward enumeration of
>>'depends-on' in the return from the server to the proxy, along with
>>proxy services that preserve that information and also all headers
>>that comprise the things the value returned depended upon, would be a
>>good first step. For some headers, (accept, for example), you need
>>more than merely knowing what it depended upon, but also the WAY in
>>which it depended upon the original data, so that the proxy itself can
>>decide whether a cached item is appropriate.
>Absolutely. A Vary: 1#(http-header-name) header returned by the server
>would help solve this problem.

I like this syntax. The URI header would work, but this is short and
to the point.

Received on Wednesday, 20 December 1995 10:20:34 UTC

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