How to retrieve localstorage data when user logout

See more:

ASP.NET

LocalStorage

MVC4

cookie

Team, I am storing & retrieving kendo grid data using localstorage. It's working if the user is log-in. If the user log-out,localstorage data clear. When user clicks on signout, I just clear cookies, but localstorage data automatically clear.

I just want to retrieve localstorage data after user log-in, also not clear localstorage data if user log-out or SignOut.

FYI -
I have localstorage data - Dev Tool Image

What I have tried:

I tried -

public RedirectResult SignOut()
        {
            string[] myCookies = HttpContext.Request.Cookies.AllKeys;
            foreach (string cookie in myCookies)
            {
                var httpCookie = HttpContext.Response.Cookies[cookie];
                if (httpCookie != null)
                    httpCookie.Expires = DateTime.Now.AddDays(-1);
            }
            Session.Clear();
            string redirectUrl = System.Configuration.ConfigurationManager.AppSettings["Path"].ToString();
            return Redirect(redirectUrl);
        }