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Re: Proposed change to 14.6 (Age)

From: Jeffrey Mogul <mogul@pa.dec.com>
Date: Fri, 31 May 96 14:13:16 MDT
Message-Id: <9605312113.AA24530@acetes.pa.dec.com>
To: Koen Holtman <koen@win.tue.nl>
Cc: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com, mogul@pa.dec.com
    Based on all this, I propose that the sentence
    
      HTTP/1.1 caches MUST send an Age header in every response.
    
    in 16.4 is changed into
    
      HTTP/1.1 caches MUST send an Age header in every non-first-hand
      response.
    
I'd only support this change if it became:

      An HTTP/1.1 cache MUST send an Age header in every response,
      except that it MAY omit the Age header if the cache has
      unambiguous proof that the response is firsthand, has not
      flowed through any cache that is not compliant with HTTP/1.1,
      and is not being transmitted to a client whose HTTP-Version
      is less than 1.1.

but frankly, I think this is pointless.  What's the cost of adding
the Age header, given that a compliant cache implementation MUST have
the code to add Age to non-first-hand responses anyway?  It would
take far more code to check all of the necessary conditions.

Let's keep it simple.

-Jeff


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Received on Friday, 31 May 1996 14:27:41 EDT

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