We have a little problem with the personalization module in the SDL Tridion 2011 and we are not sure if it is a bug, problem with the configuration of the cd_wai in our Linux presentation server (Java implementation) or not an issue or all.
We present a "personalized" page depending on a customer characteristic (user country). We show different component presentations depending from which country is the user accessing to the page.
Apparently it works smooth, but if we use a tool for sniffing the HTTP headers in the response when a user request for this page, we can see that the (same) header "Set-Cookie" is set a lot of times (varying based on the number of component presentations that do not match with the first component presentation mapped to the user's country.)
Have any of you experienced something like this?