Redirect to login page while copy and paste the url in new tab

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jQuery

MVC4

Hi..

In my MVC application I have the requirement to redirect to login page while user after logged in the application if he copy and paste the url in same browser and also in new tab..

I had successfully to redirect to login page if he paste in other browsers..

for that I wrote the code as follow in the Global.asax.cs file

///added by honey..

        protected void Session_Start(Object sender, EventArgs e)
        {
            if (!Request.FilePath.Contains("Default"))
            {
                string strPreviousPage = "";

                if (Request.UrlReferrer != null)
                {
                    strPreviousPage = Request.UrlReferrer.Segments[Request.UrlReferrer.Segments.Length - 1];
                }
                if (strPreviousPage == "")
                {
                    HttpContext.Current.Session.Add("CurrentCompany", "Company 1");
                    var routeData = new RouteData();
                    routeData.Values["controller"] = "Account";
                    routeData.Values["action"] = "Login";
                    Response.StatusCode = 500;
                    IController controller = new HomeController();
                    var rc = new RequestContext(new HttpContextWrapper(Context), routeData);
                    controller.Execute(rc);
                }
            }
        }

For the same browser or in new tab in that browser, how i can accomplish the requirement..
if u know, help me..

Thanks ,
Honey.