Fixed NullReferenceException that can be thrown by the MVC Provider sample if the Accept-Types header is missing in the request.

Thanks, Steven L-P.

1 files changed, 1 insertions, 1 deletions

diff --git a/samples/OpenIdProviderMvc/Controllers/UserController.cs b/samples/OpenIdProviderMvc/Controllers/UserController.cs
index 70bea04..5d46388 100644
--- a/samples/OpenIdProviderMvc/Controllers/UserController.cs
+++ b/samples/OpenIdProviderMvc/Controllers/UserController.cs
@@ -13,7 +13,7 @@ namespace OpenIdProviderMvc.Controllers {
 				return redirect;
 			}
 
-			if (Request.AcceptTypes.Contains("application/xrds+xml")) {
+			if (Request.AcceptTypes != null && Request.AcceptTypes.Contains("application/xrds+xml")) {
 				return View("Xrds");
 			}