Add a custom Error view in the Mvc.Server sample

samples/Mvc.Server/Views/OpenIddict/Error.cshtml

@@ -0,0 +1,12 @@
+@using Microsoft.IdentityModel.Protocols.OpenIdConnect
+@model OpenIdConnectMessage
+    
+<div class="jumbotron">
+    <h2>Ooooops, something went really bad with your OpenID Connect request! :(</h2>
+    <p class="lead text-left">
+        <strong>@Model.Error</strong>
+        @if (!string.IsNullOrEmpty(Model.ErrorDescription)) {
+            <small>@Model.ErrorDescription</small>
+        }
+    </p>
+</div>

src/OpenIddict.Mvc/Views/Shared/Authorize.cshtml

@@ -6,7 +6,7 @@
 <div class="jumbotron">
     <h1>Authorization</h1>
 
-    <p class="lead text-left">Do you wanna grant <strong>@Model.Item2</strong> an access to your resources? (scopes requested: @Model.Item1.Scope)</p>
+    <p class="lead text-left">Do you wanna grant <strong>@Model.Item2</strong> access to your resources? (scopes requested: @Model.Item1.Scope)</p>
     <p class="lead text-left"><strong>@Model.Item2</strong> will be able to access the following endpoints: @string.Join(" ; ", Model.Item1.GetResources())</p>
 
     <form enctype="application/x-www-form-urlencoded" method="post">