[Zope-dev] Last-modified and bobobase_modification_time

[Wei He]

On Tue, 18 Jun 2002, Oliver Bleutgen wrote:

> > 
> > Would please go a little bit deeper giving an example what information 
> > HEAD requests don't pass to the server, although it's beyond this topic.
> 
> HEAD requests are required to have no side effects. On the other hand 
> they are required to return the same response as GET requests without 
> the BODY.
> So GET returning another last-modified header than HEAD would be in 
> violation of the RFC. This gets worse by the fact that HEAD can be used 
> for caching purposes.

Totally understood. But the question is what RFC says about the 
last-modified header. Shouldn't it reflect the latest update? Zope is 
facing this problem because it handles the HEAD request seperately. 
Am I right?

I don't see any need to seperately handle the HEAD request. My hacking of 
the last-modified header is done execpt that HEAD and wget -S returns 
different headers. I think the last step is to change the HEAD handling 
routine to the get information from GET. Does anyone have any idea?

Cheers,

Wei He