I am facing one weird issue while accessing session value in my Umbraco 8 website. So we are having 2 website one is public facing Umbraco website and second is secured website to be accessible after login as a normal MVC application hosted as subdomain in IIS. When I try to access login information set inside session in normal application inside Umbraco application it always return null value. This issue occurs only when we read session data in my Umbraco application. When I return back to another application I am able to get session value. Wondering if I am missing something while retrieving the session value in my Umbraco application? Anyone have any idea, what could be the reason of this issue? Thanks in advance..

Controller code setting the Session value it pretty straight forward:

Controller:

public class UserController : Controller

Method:

[HttpPost] public string SetSession(OnlineUser UserObj) { Session["UserInfo"] = UserObj; return null; }