W3C home > Mailing lists > Public > http-caching-historical@w3.org > January 1996

Re: cache keys

From: David W. Morris <dwm@shell.portal.com>
Date: Sat, 6 Jan 1996 16:07:40 -0800 (PST)
To: Shel Kaphan <sjk@amazon.com>
Cc: http-caching@pa.dec.com, sjk@digital.com
Message-Id: <Pine.SUN.3.90.960106155451.23359E-100000@jobe.shell.portal.com>


On Sat, 6 Jan 1996, Shel Kaphan wrote:

[...]
> 
> - For POSTs where the response does not contain Cache-control:no-side-effects,
> the response cannot be used to answer any POSTs.

As I tried to say a few minutes ago in another message, it seems to me
that a third POST case exists ... the POST result is cachable BUT the
server must see the request and perhaps pick one of N responses.

[...]
> - What about the HTTP method?  I do not believe that the HTTP method
> should be part of the cache key.  In fact, I think it can't be.

I don't think I agree. I'm inclined to believe it must be part of
the key. There is nothing in current practice that I'm aware of 
which wouldn't allow GET of a URI to return a price list and POST 
of the same URI to confirm the order.


Dave Morris
Received on Sunday, 7 January 1996 00:22:32 GMT

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