Special page to handle 429 errors

BTCPayServer/Controllers/ErrorController.cs

@@ -14,7 +14,7 @@ namespace BTCPayServer.Controllers
         {
             if (statusCode.HasValue)
             {
-                var specialPages = new[] { 404, 500 };
+                var specialPages = new[] { 404, 429, 500 };
                 if (specialPages.Any(a => a == statusCode.Value))
                 {
                     var viewName = statusCode.ToString();

BTCPayServer/Views/Error/429.cshtml

@@ -0,0 +1,15 @@
+@{
+    ViewData["ErrorTitle"] = "429 - Too Many Requests";
+}
+
+<p class="lead-login">
+    Please send requests slower. Or face the wrath of <a href="https://twitter.com/r0ckstardev" target="_blank">Vin Diesel</a>.
+    <br /><br />
+    <a href="https://twitter.com/r0ckstardev" target="_blank">
+        <img src="~/img/errorpages/429_rockstardev.jpg" alt="Vin is angry because you caused 429" title="Move away that cursor" />
+    </a>
+    <br /><br />
+    You sure you want to risk that?
+    <br /><br />
+    Slowly <a href="/">navigate back to home</a>.
+</p>

BTCPayServer/Views/Error/Handle.cshtml

@@ -15,5 +15,5 @@
     Consult server log for more details.
     <br /><br />
     <a href="/">Navigate back to home</a>.
-    <br /><br /><br />
+    <br /><br />
 </p>