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Re: Web browsers should preserve the file system Last-Modified time of downloaded files

From: Julian Reschke <julian.reschke@gmx.de>
Date: Sat, 05 Nov 2011 18:05:31 +0100
Message-ID: <4EB56CDB.7020209@gmx.de>
To: Larry Masinter <masinter@adobe.com>
CC: Brolin Empey <brolin@brolin.be>, "www-tag@w3.org" <www-tag@w3.org>
On 2011-11-05 17:33, Larry Masinter wrote:
> The web architecture at least as we have specified it so far does not address the notion of "downloading" and of "files" or modified dates.
>
> As far as the web is concerned, the data stream you get from a GET is at least potentially reinvented every time.
>
> And clocks often can be skewed, so that the last-modified timestamp that you get is not in your epoch anyway, so setting file mod time anything other than local time of receipt isn't useful.
> ...

Well, there are special cases where the payload returned by GET indeed 
corresponds to the concept of a file with a certain timestamp.

A server can add a Content-Disposition header indicating the timestamp. 
At least one user agent makes use of it (-> 
<http://greenbytes.de/tech/tc2231/#attmdate>).

Best regards, Julian
Received on Saturday, 5 November 2011 17:06:15 GMT

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