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Re: draft-snell-http-prefer-17 feedback

From: Julian Reschke <julian.reschke@gmx.de>
Date: Wed, 05 Dec 2012 10:17:54 +0100
Message-ID: <50BF1142.4040408@gmx.de>
To: Barry Leiba <barryleiba@computer.org>
CC: Martin Thomson <martin.thomson@gmail.com>, HTTP Working Group <ietf-http-wg@w3.org>, James M Snell <jasnell@gmail.com>, Mark Nottingham <mnot@mnot.net>
On 2012-12-05 00:08, Barry Leiba wrote:
>>>>     Another option available to clients is to utilize Request URI query-
>>>>     string parameters to express preferences.  Doing so, however, results
>>>>     in a variety of issues affecting the cacheability of responses.
> ...
>> If the intent is to retrieve:
>>    http://example.com/foo
>> with prefer: wait=5, then asking for
>>    http://example.com/foo?wait=5
>> will result in a cache entry against the latter URI, just as
>>    http://example.com/foo?wait=3
>> will create another cache entry that are all equally useless to the
>> requester pulling down the "unmodified" URI.
>>
>> Any change needs to be aware of the strict interpretation, but make
>> this implication obvious.
>
> How about this:
>
> OLD
> Doing so, however, results in a variety of issues affecting the
> cacheability of responses.
>
> NEW
> But any mechanism that alters the URI can have undesirable effects,
> such as when caches record the altered URI.

Works for me.
Received on Wednesday, 5 December 2012 09:18:35 GMT

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