Re: How to interpret Cache-Control: no-cache="Set-Cookie"

Oh god did you really get 4 cookies from my server? UGH. I fixed a bug
in core apache code which then created a new bug in my code :) It's been
a looong week.

I'm certain the interpretation is the first -- OK to cache if you strip
out the Set-Cookie headers. Consider:

no-cache
  Indicates that all or part of the response message MUST NOT be cached
  anywhere. This allows an origin server to prevent caching even by
  caches that have been configured to return stale responses to client
  requests.

Dean

On Sat, 12 Apr 1997, Miguel A.L. Paraz wrote:

> Hi,
>
> Dean Gaudet of HotWired pointed this out. From RFC2068:
>
> cache-request-directive =
> "no-cache" [ "=" <"> 1#field-name <"> ]
>
> ...
>
> When a directive appears without any 1#field-name parameter, the
> directive applies to the entire request or response. When such a
> directive appears with a 1#field-name parameter, it applies only to
> the named field or fields, and not to the rest of the request or
> response. This mechanism supports extensibility; implementations of
> future versions of the HTTP protocol may apply these directives to
> header fields not defined in HTTP/1.1.
>
> How do we interpret Cache-Control: no-cache="Set-Cookie":
> - this page is OK to cache, just strip out the Set-Cookie headers?
> - this page is OK to cache, keep the Set-Cookie headers? This would
> serve up the same cookie to many browsers.
>
> This is a sample header:
>
> HTTP/1.1 200 OK
> Date: Sat, 12 Apr 1997 07:53:23 GMT
> Server: Apache/1.2b9-dev HotWired/1.2
> Set-Cookie: p_uniqid=z80NpOIBc1mlzSL+LA; path=/; domain=.wired.com; expires=Fri, 31-Dec-99 23:59:59 GMT
> Set-Cookie: s_uniqid=z80NpOIBc1mlzSL+LA; path=/; domain=.wired.com
> Cache-Control: no-cache="Set-Cookie"
> Set-Cookie: p_uniqid=z80NpOIBc1mlzSL+LA; path=/; domain=.wired.com; expires=Fri, 31-Dec-99 23:59:59 GMT
> Set-Cookie: s_uniqid=z80NpOIBc1mlzSL+LA; path=/; domain=.wired.com
> Cache-Control: no-cache="Set-Cookie"
> Connection: close
> Content-Type: text/html
>
> --
> miguel a.l. paraz <map@iphil.net> +63-2-893-0850
> iphil communications, makati city, philippines <http://www.iphil.net>
Received on Tue Jul 29 2003 - 13:15:40 MDT