Authentication, Authorization, HTTP protocol, Secure Socket Layer, Session State Management, Indirection, Single Sign-On, Azure AD Authentication Library (ADAL), AspNetCore Identity, OpenID, OAuth, IdentityUser, Stateless, Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), Angular HttpClient, Angular HttpInterceptors, LocalStorage, Web Storage API, Server-side prerendering, Angular Universal, Browser Types, Generic Types, JWT Tokens, Claims, Refresh Tokens, and Sliding Sessions.