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Cache-Control and Pragma

From: Nottingham, Mark (Australia) <mark_nottingham@exchange.au.ml.com>
Date: Thu, 10 Dec 1998 12:43:11 +1100
Message-Id: <D900F0C3D524D111971F00805F0D50E10157FF71@SV-MEEXCH-01.au.ml.com>
To: http-wg@hplb.hpl.hp.com
I can't find anything in the Draft that addresses the situation when
both Cache-Control and Pragma: no-cache headers are set, and they are in
conflict. 
For instance, if I use

Cache-Control: must-revalidate
Pragma: no-cache

on a HTTP response, it would be desireable to have it cached (and always
revalidated) by HTTP 1.1 caches, and not cached by HTTP 1.0 caches.
However, I can see nothing in the Draft about this, and some
implementations, upon reading 14.32 Pragma, might never cache the
object. While the action is safe, it's not ideal.
 
Am I missing something somewhere? Thanks.



Mark Nottingham
Internet Project Manager
Merrill Lynch - Melbourne, Australia
Received on Thursday, 10 December 1998 01:47:34 EST

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