Wei He writes: > ... > 2. From the website developers' point of view, there are already many > guidlines on how to create a good webpage. Among them are using the HTTP > Last-modification header to take the advantages of client cache. I think you overestimate the importance of accurate "Last-Modified" headers.
In order for caching to be allowed, there must either be a "Last-Modified" or (alternatively) an "Etag" header. However, the value of the "Last-Modified" is almost irrelevant for caching. I think, it is only used when a HTTP cache validates on object, in that is uses this date in an "If-Modified-Since" request. I would use "Expires" and "Cache-Control" for cache control. 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 )