Re: Location Proposals
Shel Kaphan (sjk@amazon.com)
Thu, 31 Aug 1995 17:41:58 -0700
Larry Masinter writes:
> > Expiration dates in the future are usually guesses, and often
> > overridden by user actions.
>
> I object to this interpretation. Expiration dates *must* be
> conservative.
>
Point taken. It is all but unenforceable, though, given that any CGI
script can insert any Expires header it wants.
FMI, how do you think that documents with *no* Expires headers should be
treated by caches? (Let's posit that they do have valid Last-modified headers).