The sending of an empty ETag header is a workaround to get Zope
working with M$ Office through Webdav. But this header should be only be 
send on the WebDAV port.

Andreas

--On Thursday, June 20, 2002 21:16 +0200 Dieter Maurer 
<[EMAIL PROTECTED]> wrote:

> Leonardo Rochael Almeida writes:
>  > IMHO, Last-modified does not make sense for dynamically calculated
>  > pages, as most zope pages are. We should just not provide this header,
>  > or provide with the value of the current time.
> Most Zope objects do not send "Last-Modified" headers, unless
> you use an HTTP cache manager. File objects (and derived objects)
> do but there it is justified.
>
> However, Zope seems to send a bogus ETag header.
> The HTTP spec says that the ETag must uniquely identify the current
> incarnation of the entity. Especially, the ETag should change, when
> the entity is modified.
> But Zope sends empty "ETag" headers, allowing HTTP compatible
> caches to cache the pages.
>
> This seems to be a bug with the consequence of unanticipated caching
> problems.
>
>
> Dieter
>
>
> _______________________________________________
> Zope-Dev maillist  -  [EMAIL PROTECTED]
> http://lists.zope.org/mailman/listinfo/zope-dev
> **  No cross posts or HTML encoding!  **
> (Related lists -
>  http://lists.zope.org/mailman/listinfo/zope-announce
>  http://lists.zope.org/mailman/listinfo/zope )





    ---------------------------------------------------------------------
   -    Andreas Jung                     http://www.andreas-jung.com   -
  -   EMail: andreas at andreas-jung.com                              -
   -            "Life is too short to (re)write parsers"               -
    ---------------------------------------------------------------------



_______________________________________________
Zope-Dev maillist  -  [EMAIL PROTECTED]
http://lists.zope.org/mailman/listinfo/zope-dev
**  No cross posts or HTML encoding!  **
(Related lists - 
 http://lists.zope.org/mailman/listinfo/zope-announce
 http://lists.zope.org/mailman/listinfo/zope )

Reply via email to