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Re: http conditional requests and validation (e.g. if-modified, if-unmodified)

From: Mark Nottingham <mnot@mnot.net>
Date: Mon, 17 Nov 2003 19:37:51 -0800
Message-Id: <964333FC-1978-11D8-B046-00039396E15A@mnot.net>
Cc: <www-talk@w3.org>
To: <etk31073@stud.uni-stuttgart.de>

On Nov 13, 2003, at 6:53 AM, Michael Wedel wrote:

> The second solution would be always to return a 200 OK with the 
> complete enitity in response to If-Modified-Since requests (304 is 
> only a SHOULD requirement). The problem is that I have always to 
> answer If-Unmodified-Since requests with 412 (performing the operation 
> is only a SHOULD requirement), because I cannot determine if they have 
> been modified or not.

This is the right way to do it.

Mark Nottingham     http://www.mnot.net/
Received on Monday, 17 November 2003 22:38:33 GMT

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