- From: Julian Reschke <julian.reschke@gmx.de>
- Date: Sat, 05 Nov 2011 18:05:31 +0100
- 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 UTC