RE: Comments on draft-ietf-http-v11-spec-rev-03

> ----------
> From: 	Jeffrey Mogul[SMTP:mogul@pa.dec.com]
> Sent: 	Friday, March 27, 1998 2:51 PM
> To: 	http-wg@cuckoo.hpl.hp.com
> Subject: 	Re: Comments on draft-ietf-http-v11-spec-rev-03 
> 
>     
> How does
> 	mark the cached object as "must-revalidate"
> differ from
> 	invalidate the cached object
> 
In my mind, at least, invalidate implies "never return it in response to any
later request", and usually, that means to delete it from the cache. Whereas
"must-revalidate" implies "keep the bits in the cache, but do a conditional
GET (or whatever) before returning them in any later request".

Thus, even if they are technically identical, the implication I would form
upon reading the two alternatives are quite different.