Handle auth failure

src/BlazingPizza.ComponentsLibrary/content/authPopup.js

@@ -7,7 +7,7 @@
         }
 
         userInfoComponent = component;
-        var popup = window.open('user/signin?returnUrl=' + encodeURIComponent(location.href), 'loginWindow', 'height=600,width=450');
+        var popup = window.open('user/signin?returnUrl=' + encodeURIComponent(location.href), 'loginWindow', 'width=600,height=600');
 
         // Poll to see if it's closed before completion
         var intervalHandle = setInterval(function () {

src/BlazingPizza.Server/Startup.cs

@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Blazor.Server;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.ResponseCompression;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
@@ -45,6 +46,11 @@ namespace BlazingPizza.Server
                 {
                     twitterOptions.ConsumerKey = Configuration["Authentication:Twitter:ConsumerKey"];
                     twitterOptions.ConsumerSecret = Configuration["Authentication:Twitter:ConsumerSecret"];
+                    twitterOptions.Events.OnRemoteFailure = (context) =>
+                    {
+                        context.HandleResponse();
+                        return context.Response.WriteAsync("<script>window.close();</script>");
+                    };
                 });
         }