From a86a190c4906a0322bab7f91f1ccf29914a873eb Mon Sep 17 00:00:00 2001
From: James Atherton <james@bitovi.com>
Date: Fri, 26 Feb 2016 15:02:57 -0600
Subject: [PATCH] getResponseHeader should work for non-lowercased response
 headers

---
 lib/XMLHttpRequest.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/XMLHttpRequest.js b/lib/XMLHttpRequest.js
index 4893913..48d829f 100644
--- a/lib/XMLHttpRequest.js
+++ b/lib/XMLHttpRequest.js
@@ -216,10 +216,10 @@ exports.XMLHttpRequest = function() {
       && this.readyState > this.OPENED
       && response
       && response.headers
-      && response.headers[header.toLowerCase()]
+      && (response.headers[header.toLowerCase()] || response.headers[header])
       && !errorFlag
     ) {
-      return response.headers[header.toLowerCase()];
+      return (response.headers[header.toLowerCase()] || response.headers[header]);
     }
 
     return null;