I believe you can set the header Cache-Control to no-store to prevent the browser from looking for cached pages.
Bill On Feb 12, 2008 11:58 AM, Andrew Robinson <[EMAIL PROTECTED]> wrote: > No, sorry, but it is well documented on the internet. Google for browser > caching and http headers > > > On Feb 12, 2008 10:56 AM, Thomas Chang <[EMAIL PROTECTED]> wrote: > > > > 1) You could force all you pages to never cache, so when they hit back > > it goes to the server. > > > > This sounds interesting. Maybe have you example code? > > > > > > ********************** > > > > 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]<http://de.f278.mail.yahoo.com/ym/[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>. > > > > > >
