From a63e7cd8ca20b613db4a4b11b664ad67ecc997c2 Mon Sep 17 00:00:00 2001
From: Michael Bradley <staticinstance@users.noreply.github.com>
Date: Fri, 26 Feb 2016 08:55:54 -0800
Subject: [PATCH] Fix for https://github.com/mzabriskie/axios/issues/248

undefined is not valid JSON, make the value null instead.

JSON.parse(undefined) will throw an exception while JSON.parse(null) is acceptable.

http://stackoverflow.com/a/14946821/5012948
---
 lib/adapters/xhr.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/adapters/xhr.js b/lib/adapters/xhr.js
index c930f2e..6c02294 100644
--- a/lib/adapters/xhr.js
+++ b/lib/adapters/xhr.js
@@ -125,6 +125,9 @@ module.exports = function xhrAdapter(resolve, reject, config) {
     requestData = new DataView(requestData);
   }
 
+  // Clean up request
+  requestData = requestData === undefined ? null : requestData;
+  
   // Send the request
   request.send(requestData);
 };