Hello there. I have a page that the user logs (entering userID and
password) in the main web site and then from there he can browse around. The
thing is that I want to prevent the user of opening a new window again (and
therefore loggin in twice). I am using session variables in order to control
the whole login process. Every time the user logs in I write the username in
the session variable. Then everytime a new instance of the browser is being
opened I am trying to get this value from the Session object but it is
always null. I guess there is a session for every browser because the value
I am taking every time is null. Is there any way in JSP to take the variable
of the session object from the previous created instance of the browser?
And how can I delete the cached page so the user could not go back after
login out? The:
response.setHeader("Cache-Control", "no-store");
response.setHeader("Pragma", "no-cache");
response.setHeader("Expires", "Sat, 01 Jan 2000 06:01:01 GMT");
does not work.
Thanks in advanced.
Panos
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