We have a server running varnish. In order that it works correctly with Magento it analyses whether a Set-Cookie: EXTERNAL_NO_CACHE=1 header is passed through.
Only problem is that we have several headers (3 or 4) that start with "Set-Cookie:". Varnish has a limitation that it can only analyze the first "Set-Cookie" header.
Therefore I would like to ask how I could merge these multiple set cookie headers? I have been looking around on this for the last 4 days without any luck =(
Maybe using mod_header of apaches but I'm not really sure what the correct approach would be?
Any other ideas?
Thanks in advance!
PS: Running Debian and Apache 2.2.9
EDIT: Here are example headers containing the multiple set-cookie lines:
root@magento-development:/# curl -I http://XXXXXXXXX  5332 root@magento-development:/# HTTP/1.1 200 OK Date: Thu, 10 Nov 2011 14:49:56 GMT Server: Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny13 with Suhosin-Patch X-Powered-By: PHP/5.2.6-1+lenny13 Set-Cookie: store=scfr; expires=Fri, 09-Nov-2012 14:49:56 GMT; path=/; domain=XXXXXXXXX; httponly Set-Cookie: frontend=9ac04aa3912eb78eb79f98dd531f7ba6; expires=Thu, 10 Nov 2011 15:49:57 GMT; path=/; domain=XXXXXXXXX; HttpOnly Expires: Thu, 10 Nov 2011 16:49:57 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Set-Cookie: EXTERNAL_NO_CACHE=1; expires=Thu, 10-Nov-2011 15:49:57 GMT; path=/; domain=XXXXXXXXX; httponly X-Cache-Debug: 1 Vary: Accept-Encoding,User-Agent Content-Type: text/html; charset=UTF-8