CacheIgnoreHeaders Not Working

[Patrick Ostendarp <Patrick.Ostendarp@xxxxxxx>]

Hello Everyone,

I am having a problem with the CacheIgnoreHeaders feature in mod_cache.  We are using CA SiteMinder for our web SSO and mod_cache is caching a users session then distributing it out to other users who access the same page.  We are using version 2.2.10 of apache to act as a reverse proxy server.  My thought is if we can disable the Set-Cookie header then the session will not get cached with the rest of the page, therefore not distributing out the session to other users.

Here are some snippets from my httpd.conf and subsequent conf file for this particular reverse proxy site:

ProxyRequests Off
RewriteEngine On
NameVirtualHost *:80
CacheIgnoreHeaders Set-Cookie
CacheIgnoreQueryString On

<IfModule mod_cache.c>
  <IfModule mod_disk_cache.c>
        CacheEnable disk /
        CacheRoot "/var/cache/mod_proxy"
        CacheIgnoreCacheControl On
        CacheIgnoreHeaders Set-Cookie
        CacheIgnoreQueryString On
        CacheIgnoreNoLastMod On
        CacheDirLevels 5
        CacheDirLength 3
        CacheDefaultExpire 1200
        CacheMaxExpire 1800
  </IfModule>
        CacheDisable /mrtg/
        CacheDisable /policies/
        CacheDisable /hopkinsone/
#        CacheDisable /Leadership/LeadershipSecure
        CacheDisable /anesthesiology/
        CacheDisable /users
        CacheIgnoreHeaders Set-Cookie
        CacheIgnoreQueryString On
</IfModule>


Other conf file for virtualsite:

<IfModule mod_cache.c>
   <IfModule mod_disk_cache.c>
        CacheRoot "/var/cache/mod_proxy"
        CacheIgnoreNoLastMod On
        CacheEnable disk /
        CacheDirLevels 5
        CacheDirLength 3
        CacheDefaultExpire 600
        CacheMaxExpire 900
        CacheDisable /hopkinsone
        CacheIgnoreHeaders Set-Cookie
        CacheIgnoreQueryString On
   </IfModule>
        CacheIgnoreHeaders Set-Cookie
        CacheIgnoreQuerySTring On
        ProxyPass   /  http://www.jhu.edu/
        ProxyPassReverse / http://www.jhu.edu/

        ProxyPassReverse http://www.jhu.edu/hopkinsone/Secure_Private !
</IfModule>
<VirtualHost *:80 >
        ServerName www.jhu.edu
        ProxyRequests Off
        RewriteEngine On
</VirtualHost>


As you can see I've added the CacheIgnoreHeaders multiple times in multiple places.  I also did the same with CacheIgnoreQueryString in hopes that would help but it didn't.

If anyone has any thoughts they'd be greatly appreciated.

Thanks,
Pat

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