From d6b464f34b805dfe0dc8f1db9f5ff6532211fbef Mon Sep 17 00:00:00 2001
From: mattjegan <matthewj.egan@hotmail.com>
Date: Tue, 5 Sep 2017 21:29:08 +1000
Subject: [PATCH] add check for null contentType

---
 lib/utils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/utils.js b/lib/utils.js
index a969bb6..60b127f 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -14,7 +14,7 @@ const determineTransport = function (transports, url) {
 }
 
 const negotiateDecoder = function (decoders, contentType) {
-  if (contentType === undefined) {
+  if (contentType === undefined || contentType === null) {
     return decoders[0]
   }