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Posted to bugs@httpd.apache.org by bu...@apache.org on 2006/04/21 00:56:38 UTC

DO NOT REPLY [Bug 38892] - Content negotiation guide: SetEnvIf example incomplete (leads to caching problems)

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------- Additional Comments From richard@2006.atterer.net  2006-04-20 22:56 -------
>   SetEnvIf Cookie "language=([a-z-]+)" prefer-language=$1
>   Header append Vary cookie

I realize this is also a fairly problematic solution: If a site uses cookies
with session IDs, then images and other static content will be stored multiple
times by proxies! :-(  Unfortunately, only a workaround is possible:

SetEnvIf Request_URI \.(jpe?g|gif|png|exe|bin|zip|bz2|t?gz|swf)$ staticReq
Header onsuccess append Vary cookie env=!staticReq


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