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Re: WGLC #353: Multiple Values in Cache-Control headers

From: Julian Reschke <julian.reschke@gmx.de>
Date: Fri, 08 Jun 2012 11:57:25 +0200
Message-ID: <4FD1CC85.60704@gmx.de>
To: Mark Nottingham <mnot@mnot.net>
CC: HTTP Working Group <ietf-http-wg@w3.org>
On 2012-06-08 09:30, Mark Nottingham wrote:
> Revised proposal, based upon discussion:
>> Add a note to <https://svn.tools.ietf.org/svn/wg/httpbis/draft-ietf-httpbis/latest/p6-cache.html#calculating.freshness.lifetime>:
>> """
>> When there is more than one value present for a given directive (e.g., two Expires headers, multiple Cache-Control: max-age directives), it is considered invalid. Caches SHOULD consider responses that have invalid freshness information to be stale.
>> """
> Any further comments? Otherwise we'll close and incorporate.
> ...

Would it make sense to have generic text in the definition of 
Cache-Control about this?

Does the "must have a single value" rule apply to all directives? Can 
the definition of error recovery diverge per directive?

Best regards, Julian
Received on Friday, 8 June 2012 09:58:00 UTC

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