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Re: NEW ISSUE: Methods and Caching

From: Werner Baumann <werner.baumann@onlinehome.de>
Date: Tue, 18 Nov 2008 18:32:19 +0100
Message-ID: <4922FC23.2080604@onlinehome.de>
CC: ietf-http-wg@w3.org


Julian Reschke wrote:
> Werner Baumann wrote:
>> ...
>> Apart from the method the intermediary cache would have to include the 
>> DEPTH header and a list of requested properties into the key. And what 
>> would be the cache hit rate?
>> ...
> 
> It could be quite good, depending on what clients do; such as refreshing 
> a collection view over and over again (think explorer-like clients).
> 
Conditional PROPFIND would be very useful for user agents (i.e. WebDAV 
clients). But the problem is RFC 4918, which does not define anything 
like a cache validation mechanism for properties (and not for 
collections). I don't think this missing functionality can be added by 
some extension, but it would require a revision of RFC 4918.

I doubt that it would be very useful for intermediaries. WebDAV access 
is usually restricted to a comparably small set of users.

Werner
Received on Tuesday, 18 November 2008 17:33:10 GMT

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