1) You could force all you pages to never cache, so when they hit back it goes to the server. 2) You can have code to return false from the window.onunload event so the user gets a "are you sure" popup and just remove the listener when the click on a command link or button
On Feb 12, 2008 10:11 AM, Thomas Chang <[EMAIL PROTECTED]> wrote: > Thanksfor the reply. What I am looking for is: I want to vorbiden the back > button activity, i.e., if the user click the back button, it will show error > message and the user has to refresh the page and go back to the page where he > starts. > > This must be possible since I find many web-apps do so. > > > > ---- Thomas Chang <[EMAIL PROTECTED] <http://de.f278.mail.yahoo.com/ym/[EMAIL > PROTECTED]&YY=6871&y5beta=yes&y5beta=yes&order=down&sort=date&pos=0>> > schrieb: > In my web-app, after I logout I can even access the page by > clciking the back-button in the browser tool bar. Now I want to caoture > this action so I can check if the session is valid or not redirect it. > This might be happening *just* within your browser, without any requests > going to the server. If that is the case, then there is nothing you can do > on the > *server* to catch this. If the browser is actually fetching the previous > page from the server, then you have something incorrectly configured in > your servlet container security settings, as that should not be possible. > Regards, Simon > > ------------------------------ > Heute schon einen Blick in die Zukunft von E-Mails wagen? Versuchen Sie´s > mit dem neuen Yahoo! > Mail<http://de.rd.yahoo.com/evt=40593/*http://de.docs.yahoo.com/ymail/landing.html>. > >
