Re: ISSUE VARY: Proposed wording
David W. Morris (dwm@xpasc.com)
Wed, 9 Jul 1997 22:45:01 -0700 (PDT)
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