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Re: Using server-driven negotiation

From: Subbu Allamaraju <subbu.allamaraju@gmail.com>
Date: Sat, 8 Dec 2007 13:47:14 -0800
Cc: Henrik Nordstrom <henrik@henriknordstrom.net>, Andrew Daviel <advax@triumf.ca>, ietf-http-wg@w3.org
Message-Id: <6010E7F7-4FB9-4CAE-8651-538F765B2813@gmail.com>
To: Jamie Lokier <jamie@shareable.org>


On Dec 8, 2007, at 1:39 PM, Jamie Lokier wrote:

> Subbu Allamaraju wrote:
>>
>>   I have a question. Is the server required to supply a Vary header  
>> when
>>   it did not actually vary the current response?
>>
>>   In the example below, in the absence of a header line
>>   Accept-Geo-Position in the request, the server may be returning a
>>   generic response. In this case, I would assume that the server will
>>   not set the Vary header. I am unable to find any reference to  
>> this in
>>   2616. Hence the question.
>
> You said the server returns a generic reponse, and it does not vary
> the response.
>
> Well, does the server supply a different response when there is an
> Accept-Geo-Position in the request?
>
> If it does, that _is_ varying the response, and you've contradicted
> yourself, and it should use the Vary header.

I see. The "generic" itself is a varied form.

Subbu
Received on Saturday, 8 December 2007 21:47:30 GMT

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