ASP.NET SESSION STATE, COOKIES AND SUBDOMAINS

1. protected void Application_PreRequestHandlerExecute(Object sender, EventArgs e)
3. {
5. /// only apply session cookie persistence to requests requiring session information
9. #region session cookie
11. if (Context.Handler is IRequiresSessionState || Context.Handler is IReadOnlySessionState )
13. {
15. /// Ensure ASP.NET Session Cookies are accessible throughout the subdomains.
19. if (Request.Cookies["ASP.NET_SessionId"] != null && Session != null && Session.SessionID != null)
21. {
23. Response.Cookies["ASP.NET_SessionId"].Value = Session.SessionID;
25. Response.Cookies["ASP.NET_SessionId"].Domain = ".know24.net"; // the full stop prefix denotes all sub domains
27. Response.Cookies["ASP.NET_SessionId"].Path = "/"; //default session cookie path root
29. }
31. }
33. #endregion
35. }