How to apply Claim Based Authorization Framework for ASP.NET 5

Note, if you added WebMatrix.WebData.dll into your project reference, then every time your code called ClaimsPrincipal.Claims, system displayed HttpException with the message Unable to connect to SQL Server database.  WebMatrix.WebData.dll contains classes used with the SimpleMembership API introduced by WebMatrix. SimpleMembership, which uses a database, is automatically enabled because the dll uses PreApplicationStart method to initialize itself. The result is that Thread.CurrentPrincipal yields a System.Web.Security.RolePrincipal instead of the ClaimsPrincipal associated with the user. 
The resolution is simple, remove the dll and everything should work fine.

Reference:
http://michiel.vanotegem.nl/2013/05/fix-claimsauthorizationmanager-checkaccess-throws-httpexception/
https://social.msdn.microsoft.com/Forums/vstudio/en-US/57944284-9ec8-4780-995c-b872f2aa9688/authorizationcontext-parameter-of-claimsauthorizationmanager-does-not-contain-claims-of?forum=Geneva
http://weblog.west-wind.com/posts/2015/Apr/29/Adding-minimal-OWIN-Identity-Authentication-to-an-Existing-ASPNET-MVC-Application#Resources
http://dotnetcodr.com/2013/02/11/introduction-to-claims-based-security-in-net4-5-with-c-part-1/
http://dotnetcodr.com/2013/02/14/introduction-to-claims-based-security-in-net4-5-with-c-part-2-the-new-inheritance-model/
http://dotnetcodr.com/2013/02/25/claims-based-authentication-in-mvc4-with-net4-5-c-part-1-claims-transformation/
http://dotnetcodr.com/2013/02/28/claims-based-authentication-in-mvc4-with-net4-5-c-part-2-storing-authentication-data-in-an-authentication-session/