Avoid displaying of previous pages after logout ASP.NET C# 2.0

Question

I am having problem with logout. After Logging out of the application also, when a user presses browser back button those secured pages are displaying.

And also the page load event is not firing for browser back button. I am using master page and content page.

My logout functionality is in master page.

    Session.Clear();
    Session.Abandon();
    Session.RemoveAll();
    Response.Redirect("~/Default.aspx");

Here my login page is Default.aspx.

Answer 1

What you need to do is, just don't cache the page that you want to prevent user from access after you logs out:

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