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From Doug MacEachern <do...@covalent.net>
Subject Re: Requests using If-Modified-Since cause response Set-Cookie to be discarded (fwd)
Date Tue, 19 Jun 2001 22:51:20 GMT
On Tue, 19 Jun 2001, Roy T. Fielding wrote:
 
> Yes, it is intentional, and we won't be adding set-cookie to the list.
> That would violate the intent of 304.

can you expand on that?  i never quote rfcs, but 1945 says:

   304 Not Modified

   If the client has performed a conditional GET request and access is
   allowed, but the document has not been modified since the date and
   time specified in the If-Modified-Since field, the server must
   respond with this status code and not send an Entity-Body to the
   client. Header fields contained in the response should only include
   information which is relevant to cache managers or which may have
   changed independently of the entity's Last-Modified date. Examples
   of relevant header fields include: Date, Server, and Expires. A
   cache should update its cached entity to reflect any new field
   values given in the 304 response.

in this guy's case sounds like set-cookie it falls into here:
"or which may have changed independently of the entity's Last-Modified
date"

quoting his email:
"The cookie records, in part, the time of the last access to
the site. Therefore for each access the cookie is updated."


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