title: Post_Logout_Redirect_Uri does not redirect when authenticating using azure
body: <p>Using OWIN &amp; OpenId to authenticate users for my basic web application using Azure Active Directory, as described in the Readme.md in Microsoft's sample project here:<a href="https://github.com/Azure-Samples/active-directory-dotnet-webapp-openidconnect" rel="noreferrer">https://github.com/Azure-Samples/active-directory-dotnet-webapp-openidconnect</a></p>
  
  <p>The following item is in my web.config:</p>
  
  <p><code>&lt;add key="ida:PostLogoutRedirectUri" value="https://localhost:44320/" /&gt;</code></p>
  
  <p>The Startup.Auth is as follows:</p>
  
  <pre><code>    private static string clientId = ConfigurationManager.AppSettings["ida:ClientId"];
      private static string aadInstance = ConfigurationManager.AppSettings["ida:AADInstance"];
      private static string tenant = ConfigurationManager.AppSettings["ida:Tenant"];
      private static string postLogoutRedirectUri = ConfigurationManager.AppSettings["ida:PostLogoutRedirectUri"];
  
      string authority = String.Format(CultureInfo.InvariantCulture, aadInstance, tenant);
  
      public void ConfigureAuth(IAppBuilder app)
      {
          app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
  
          app.UseCookieAuthentication(new CookieAuthenticationOptions());
  
          app.UseOpenIdConnectAuthentication(
              new OpenIdConnectAuthenticationOptions
              {
                  ClientId = clientId,
                  Authority = authority,
                  PostLogoutRedirectUri = postLogoutRedirectUri,
                  RedirectUri = "https://localhost:44320/Home/About",
                  Notifications = new OpenIdConnectAuthenticationNotifications
                  {
                      AuthenticationFailed = context =&gt; 
                      {
                          context.HandleResponse();
                          context.Response.Redirect("/Error?message=" + context.Exception.Message);
                          return Task.FromResult(0);
                      }
                  }
              });
      }
  }
  </code></pre>
  
  <p>However the microsoft.com website does not redirect even though the redirect URI made it into it's URL<a href="https://i.stack.imgur.com/Ci89A.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/Ci89A.jpg" alt="enter image description here"></a></p>