From 6f3085d756ab1fb0959259bd13d7499fa065a76c Mon Sep 17 00:00:00 2001
From: Stephane BACHELIER <stephane.bachelier@gmail.com>
Date: Wed, 10 Feb 2016 16:12:38 +0100
Subject: [PATCH] fix(hydrate): support headers serialization from string

---
 lib/hydrate.js | 36 +++++++++++++++++++++++++++++++-----
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/lib/hydrate.js b/lib/hydrate.js
index 5323690..1f86634 100644
--- a/lib/hydrate.js
+++ b/lib/hydrate.js
@@ -7,17 +7,43 @@ value should have the following format
     status: '',
     statusText: ''
   },
-  headers: {
-    // map of HTTP response headers
-  }
+  headers: ''
 }
 */
+
+// borrow from superagent
+function trim (s) {
+  return ''.trim ? s.trim(s) : s.replace(/(^\s*|\s*$)/g, '')
+}
+
+// borrow from superagent
+function parseHeader (str) {
+  var lines = str.split(/\r?\n/)
+  var fields = {}
+  var index
+  var line
+  var field
+  var val
+
+  lines.pop() // trailing CRLF
+
+  for (let i = 0, len = lines.length; i < len; i += 1) {
+    line = lines[i]
+    index = line.indexOf(':')
+    field = line.slice(0, index).toLowerCase()
+    val = trim(line.slice(index + 1))
+    fields[field] = val
+  }
+
+  return fields
+}
+
 export default function hydrate (value) {
-  const headers = data.headers || {}
   const xhr = value.body || {}
+  const headers = parseHeader(value.headers || {})
 
   xhr.getAllResponseHeaders = function () {
-    return headers
+    return value.headers
   }
 
   xhr.getResponseHeader = function (header) {