[Zope] Images slow rendering problem

[Dieter Maurer]

Pierre-Julien Grizel writes:
 > I already posted this message several monthes ago, expecting a new Zope
 > version would fix the problem, but...
 > 
 > 
 > I have some images on my pages (let's say 10 - not a lot), rendered
 > either by dtml-var or a manual <IMG> tag.
 > When I render the page on some of my LAN boxes (especially with IE),
 > some images doesn't load at the first time. I need to reload the page to
 > make them appear. When I monkeyly hit the 'F5' key, some images do not
 > show again. Argl. Anoying....
 > 
 > The problem is worst ever through Internet.
I, myself, have seen a very similar problem -- with Netscape 4.5.1
under Solaris 2.7.

I tried to analyse it, but failed.
I can say, that is was *not* the Netscape image bug
(Netscape sends If-Modified-Since headers with two year digits). 
Inside Zope's "OFS.Image.File.index_html" everything looks fine.


Dieter