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304 or 412 for If-Modified-Since?

From: Cyrus Daboo <cyrus@daboo.name>
Date: Tue, 29 Jun 2010 21:29:40 -0400
To: WebDAV <w3c-dist-auth@w3.org>
Message-ID: <DF55548F5F3A37FD704508C5@socrates.local>
Hi folks,
RFC 2616 in Section 14.25 "If-Modified-Since" states that a 304 should be 
returned if the resource is not modified.

RFC 4918 in Section 12.1 "412 Precondition Failed" states that a 412 should 
be returned when a conditional header fails to hold.

So what should clients expect from WebDAV servers?

Second, does If-Modified-Since make sense for PROPFIND or REPORT requests?

-- 
Cyrus Daboo
Received on Wednesday, 30 June 2010 01:30:10 GMT

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