Re: change 14.21 Expires

On Fri, 7 Jun 1996, Roy T. Fielding wrote:

> minor twiddling ...
> 
> > Add the following paragraph to the end of 14.21:
> > 
> > 	The presence of an Expires header on an response that otherwise would
> > by default
> > 	be non-cacheable overrides the default and makes it cacheable.
> 
> would be better phrased as
> 
>    The presence of an Expires header field with a date value of some time
>    in the future indicates that the response is cachable, unless indicated
>    otherwise by a Cache-Control header field (section 14.9).
> 

I don't think this is true for authenticated responses.  In the absence any
Cache-Control headers they are not cachable, but they could easily have an
Expires header.


John Franks 	Dept of Math. Northwestern University
		john@math.nwu.edu

Received on Saturday, 8 June 1996 05:46:29 UTC