From 1a383aced5d8725c13d4ee31729b26a9105f9a93 Mon Sep 17 00:00:00 2001
From: Spencer Alger <spencer@spenceralger.com>
Date: Thu, 8 May 2014 17:12:20 -0700
Subject: [PATCH] added a new RequestTypeError class that connectionClasses can
 throw to prevent a request from being retried and respond directly to the
 user.

---
 src/lib/errors.js    | 8 ++++++++
 src/lib/transport.js | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/src/lib/errors.js b/src/lib/errors.js
index d2f261548..728c1f64c 100644
--- a/src/lib/errors.js
+++ b/src/lib/errors.js
@@ -69,6 +69,14 @@ errors.Serialization = function Serialization(msg) {
 _.inherits(errors.Serialization, ErrorAbstract);
 
 
+/**
+ * Thrown when a browser compatability issue is detected (cough, IE, cough)
+ */
+errors.RequestTypeError = function RequestTypeError(feature) {
+  ErrorAbstract.call(this, 'Cross-domain AJAX requests ' + feature + ' are not supported', errors.RequestTypeError);
+};
+_.inherits(errors.RequestTypeError, ErrorAbstract);
+
 var statusCodes = {
 
   /**
diff --git a/src/lib/transport.js b/src/lib/transport.js
index cd2fea89f..1e3f98954 100644
--- a/src/lib/transport.js
+++ b/src/lib/transport.js
@@ -180,6 +180,12 @@ Transport.prototype.request = function (params, cb) {
 
     requestAborter = void 0;
 
+    if (err instanceof errors.RequestTypeError) {
+      self.log.error('Connection refused to execute the request', err);
+      respond(err, body, status, headers);
+      return;
+    }
+
     if (err) {
       connection.setStatus('dead');
       if (remainingRetries) {