I've run across a problem in the way I'm managing sessions, and I'm hoping that someone else has encountered the same thing and come up with a smart way to deal with it. I use Apache::Session and I associate each user with their respective session hash by giving them a cookie. The problem shows up because, in a few places, I use the session hash to store page-specific state information (the current page the user is on, for example). When a user opens a second copy of the site in another browser window, they still publish the same cookie. Both the windows are then associated with the same session. This means that the two windows can trash each other's page-specific state and cause all sorts of undefined behavior. It seems to me like there are several possible solutions: 1. Stop the user from ever having the site open in more than one window. 2. Somehow allocate the new window it's own session. 3. Don't store any page-specific state in the session hash; limit the information that the session hash contains to state that applies to the entire session. Option three (removing all page-specific state from the session hash) seems like the right thing to do. I'd like to avoid it if possible, however, because it means passing more information through URLs and having to secure it. Have other people encountered this problem, and are there smart ways to do option 1 or option 2? (If it matters, I'm using HTML::Mason as my templating engine.) -- Dylan