Visited pages can be viewed after Logout when browser back button is clicked. How do i avoid?

Question

when i click back button of the browser twice its taking me to visited pages.. for the first time when i click on back after log out its takes me to Login in page as expected but when i click back again its taking me to visited pages.. How do i stop that?? Any idea Here is my Code:

 protected void Page_Load(object sender, EventArgs e)
    {
        Response.AppendHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1.
        Response.AppendHeader("Pragma", "no-cache"); // HTTP 1.0.
        Response.AppendHeader("Expires", "0");

        if (!IsPostBack)
        {
            LoginMultiview.ActiveViewIndex = 0; /////  Login Page.
        }
        else
        {
        }         
    }

 protected void btnsubmit_Click(object sender, EventArgs e)
    {
        if (AuthenticateUser(txtUserName.Text, txtPassword.Text))
        {
            string Username = Session["username"].ToString();
            string Password = Session["password"].ToString();
            if (Session["username"] != null && Session["password"] != null)
            {
                GetEmployeeId(Username, Password);

                LoginMultiview.ActiveViewIndex = 1;

                GetManagerTimeSheets();
            }
            else
            {
                Response.Redirect("Login.aspx");
                LoginMultiview.ActiveViewIndex = 0;
            }
        }
        else
        {
            string Username = Session["username"].ToString();
            string Password = Session["password"].ToString();
            if (Session["username"] != null && Session["password"] != null)
            {
                ddlWeeks.DataSource = GetWeeksDropdownData();
                ddlWeeks.DataBind();

                Response.Write("WELCOME" + " " + Username);
                LoginMultiview.ActiveViewIndex = 2;
            }
            else
            {
                Response.Redirect("Login.aspx");
                LoginMultiview.ActiveViewIndex = 0;
            }
        }
    }

Code with in Logout LinkButton:

    protected void LinkButton2_Click(object sender, EventArgs e)
    {
        Session.Clear();
        Session.RemoveAll();
        Session.Abandon();
        if (Session["username"] == null&& Session["password"]== null)
        {
            Response.Redirect("Login.aspx", true);

        }           
    }

score 2 · Accepted Answer · edited May 23 '17 at 12:29

2

You can add no-cache Meta HTML headers to the pages you don't want cached.

<META Http-Equiv="Cache-Control" Content="no-cache"/>
<META Http-Equiv="Pragma" Content="no-cache"/>
<META Http-Equiv="Expires" Content="0"/>

This is a similar question: How to prevent user from going back to the login-page after successful login using back button

This seems to be a good walkthrough:

http://www.codeproject.com/Tips/135121/Browser-back-button-issue-after-logout

edited May 23 '17 at 12:29

Community

1
1

answered Sep 24 '14 at 20:14

user1666620

4,800
18
27

Thanks for reply... This is not working... when i click back button of browser twice. – keerthi Sep 24 '14 at 20:40
what browser are you using? i know there can be some conflicts with older browsers. – user1666620 Sep 24 '14 at 20:50
IE.11... First time it works fine another back click takes me to visited pages – keerthi Sep 24 '14 at 20:53
sounds like those older pages are cached because they don't contain the meta tags - view the page source to be sure. – user1666620 Sep 24 '14 at 20:56
@keerthi was this the solution to your problem or was there something else? – user1666620 Sep 30 '14 at 09:57
yes this code worked finally after addition of some java script in my code – keerthi Sep 30 '14 at 20:02
@keerthi - good to hear - what was the javascript you had to add? – user1666620 Oct 01 '14 at 10:00
– keerthi Oct 01 '14 at 18:21

Visited pages can be viewed after Logout when browser back button is clicked. How do i avoid?

1 Answers1