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Re: #371: If-Modified-Since lacks definition for method != GET

From: Julian Reschke <julian.reschke@gmx.de>
Date: Thu, 12 Jul 2012 09:04:08 +0200
Message-ID: <4FFE76E8.90904@gmx.de>
To: Mark Nottingham <mnot@mnot.net>
CC: HTTP Working Group <ietf-http-wg@w3.org>
On 2012-07-12 06:12, Mark Nottingham wrote:
> On 11/07/2012, at 11:07 PM, Julian Reschke wrote:
>>  From an off-list WGLC comment:
>>>     3.3. If-Modified-Since
>>>         The "If-Modified-Since" header field MAY be used to make a request method conditional by modification date: if the selected representation has not been modified since the time specified in this field, then do not perform the request method; instead, respond as detailed below.
>>> This section doesn't seem to say anything about methods other than GET, yet the text seems to imply that a more general case is also covered below.
>> -> <http://trac.tools.ietf.org/wg/httpbis/trac/ticket/371>
>> Indeed, the spec doesn't really say; is it (a) undefined, (b) 304, or (c) 412?
> My .02 - 304 is clearly not correct.
> I'd be inclined to say undefined, as I don't think we want to promote IMS in these uses.

Well, "defining" is not the same thing as "promoting" :-)

Once we properly resolve the evaluation order issue 
(<http://trac.tools.ietf.org/wg/httpbis/trac/ticket/241>), the answer to 
this one probably will become more obvious.

Best regards, Julian
Received on Thursday, 12 July 2012 07:05:22 UTC

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