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Re: httpbis-p6-cache-14, and vary headers

From: Poul-Henning Kamp <phk@phk.freebsd.dk>
Date: Wed, 27 Apr 2011 08:19:38 +0000
To: Mark Nottingham <mnot@mnot.net>
cc: "ietf-http-wg@w3.org Group" <ietf-http-wg@w3.org>, Henrik Nordström <henrik@henriknordstrom.net>
Message-ID: <66814.1303892378@critter.freebsd.dk>
In message <12278CD3-2800-4C1A-992C-75F814EF7146@mnot.net>, Mark Nottingham wri
tes:

>Vary isn't ordering-dependent, so Obj3 and Obj4 are equivalent, and the 
>latest one should be used as per this requirement in p6 2.2:
>
>   A cache MUST use the most recent response (as determined by the Date
>   header field) when more than one suitable response is stored. 

Ok, I hadn't connected that requirement to the Vary case, but
it obviously settles the issue.

>What about something like
>
>"""
>If multiple selected responses are available, the most recent response 
>(as determined by the Date header field) is used (see [section 2.2]).
>"""

Works for me.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
Received on Wednesday, 27 April 2011 08:20:10 GMT

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