W3C home > Mailing lists > Public > www-p3p-dev@w3.org > July 2001

expiry date in policy / section

From: Sebastian Kamp <kamp@ti.informatik.uni-kiel.de>
Date: Wed, 25 Jul 2001 11:55:51 +0200
To: www-p3p-dev@w3.org
Cc: www-p3p-policy@w3.org
Message-Id: <01072511555107.07894@rosmarin>

The specification says an EXPIRY element can be used in a policy. I don't see 
any case in which this EXPIRY element is actually used though. 

Section states "The lifetime of a PRF tells user agents how long 
they can rely on the claims made in the reference file.[...] All of the 
policy references made in a single PRF will receive the same lifetime."

This implies that  a policy inherits its expiry date by the PRF (that 
references it) anyway. So when is an EXPIRY element in a *policy* actually 

Sebastian Kamp

P.S. I sent the following message to www-p3p-policy on May 21st. Since I 
didn't get any answer I would like to post it on this list once again. It is 
probably just a typo-matter:


I am a little confused by the following sentence in section 

"1. When a policy reference file contains an EXPIRY element, and it is served 
with one of the HTTP headers listed in the previous subsection, 
the EXPIRY header takes precedence for determining the lifetime of the policy 
reference file."

I guess "EXPIRY header" is a typo, but what is actually meant then: does the 
Expires header take precedence over the EXPIRY Element or the other way 
Received on Wednesday, 25 July 2001 05:57:31 UTC

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