Re: ISSUE VARY: Proposed wording

On Wed, 9 Jul 1997, Jeffrey Mogul wrote:

> I think the first part is still somewhat misleading.  How about:
> 
>     If the representation was selected using criteria not limited to
>     the request-headers, then the server MUST include a "Vary: *"
>     header field in the response.
>     In this case, a cache MUST NOT use the response in
>     a reply to a subsequent request unless the cache relays the new
>     request to the origin server in a conditional request and the
>     server responds with 304 (Not Modified), including an entity tag or
>     Content-Location that indicates which entity should be used.
> 
> As long as we are going to say MUST, we should be explicit about
> what the requirement is.

I vote for your variant. I didn't really care for the prior version
with a header talking to a cache.

Dave Morris

Received on Wednesday, 9 July 1997 22:49:47 UTC