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From Alexei Kosut <>
Subject Re: [PATCH] error responses have wrong headers (part 2)
Date Sat, 10 May 1997 04:06:44 GMT
On Fri, 9 May 1997, Roy T. Fielding wrote:

> r->no_cache has never meant "don't let proxies cache this"; it means
> don't give this content to other user agents with different request
> profiles.  It is the reason why Vary exists.  The after-patch code is
> still sending
>    Expires: <same as Date>
> which means the same thing under both HTTP/1.0 and HTTP/1.1 in terms
> of preventing a shared cache from reusing a response -- it forces the
> cache to do a conditional GET containing the new UA profile.  There
> is not, and has never been, any reason to add Cache-Control in that
> situation, and since I am the person who wrote that bit of code I am
> absolutely sure that it isn't needed for anything else.

Fine... Out of curiosity, which "bit of code" are you referring to?

Alexei Kosut <>      The Apache HTTP Server

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