I need to display a popup to the user once per session. My thought was to create a session cookie by creating a cookie with no expiration date to track if the popup has already been displayed. These cookies should be removed when the browser is closed. I have since learned that Chrome has a "feature" where session cookies are not removed (Chrome doesn't delete session cookies).
I am not asking why the cookies aren't deleted in chrome. I am asking if there is a way to force chrome to remove the cookies or some other solution to only display a popup once per session.