browser cache problem in asp.net mvc after logout

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Hi,

when i hit the browser back button ,it shows the last accessed page. This is the code after log out.

SQL

public ActionResult LogOff()
       {
           FormsAuthentication.SignOut();
           Session.Abandon();

           // Invalidate the Cache on the Client Side

           foreach (var cookie in Request.Cookies.AllKeys)
           {
               Request.Cookies.Remove(cookie);
           }
           foreach (var cookie in Response.Cookies.AllKeys)
           {
               Response.Cookies.Remove(cookie);
           }


           return RedirectToAction("LogOn", "Account");
       }

Thanks for helping.

Posted 22-Feb-12 20:49pm

ganesh_kanc

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Ganesan Senthilvel · Answer 1 · 2012-02-22T20:57:00

The pages you visit in your browser are cached depending upon your caching settings in the browser. You need to prevent caching in ASP.net MVC so that they are not cached by the browser. After you do that try clearing your browsers cache and try loading the page again. Logout and try the back button. You should get a message saying that the page no longer exists or something.

There are many ways of preventing your ASP.net pages from getting cached in the browser. One such way is to do this before the page is rendered.

C#

this.Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1))
this.Response.Cache.SetCacheability(HttpCacheability.NoCache)
this.Response.Cache.SetNoStore()