From da674ec4df2b371f09e912f3b376c48581090a0f Mon Sep 17 00:00:00 2001
From: Arttu Liimola <arttu.liimola@gmail.com>
Date: Sun, 30 Aug 2015 22:17:18 +0300
Subject: [PATCH] Modify the set-cookie header fix to work with node 0.10.x.

---
 lib/http-proxy/passes/ws-incoming.js | 25 +++++++++++++++++++------
 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/lib/http-proxy/passes/ws-incoming.js b/lib/http-proxy/passes/ws-incoming.js
index 1284f64..eb77adf 100644
--- a/lib/http-proxy/passes/ws-incoming.js
+++ b/lib/http-proxy/passes/ws-incoming.js
@@ -1,5 +1,6 @@
 var http   = require('http'),
     https  = require('https'),
+    util   = require('util'),
     common = require('../common'),
     passes = exports;
 
@@ -113,12 +114,24 @@ var passes = exports;
 
       if (proxyHead && proxyHead.length) proxySocket.unshift(proxyHead);
 
-      socket.write('HTTP/1.1 101 Switching Protocols\r\n');
-      socket.write(proxyRes.rawHeaders.map(function(v, i, a) {
-        return !(i % 2) ? v + ": " + a[i+1] : null;
-      }).filter(function (v) {
-        return v ? true : false;
-      }).join('\r\n') + '\r\n\r\n');
+      var writeHead = [
+        'HTTP/1.1 101 Switching Protocols'
+      ];
+
+      Object.keys(proxyRes.headers).map(function(i) {
+          if (util.isArray(proxyRes.headers[i])) {
+            var a   = proxyRes.headers[i];
+            var len = a.length;
+
+            for (var x = 0; x < len; x++) {
+              writeHead.push(i + ": " + a[x]);
+            }
+        } else {
+          writeHead.push(i + ": " + proxyRes.headers[i]);
+        }
+      });
+
+      socket.write(writeHead.join('\r\n') + '\r\n\r\n');
       proxySocket.pipe(socket).pipe(proxySocket);
 
       server.emit('open', proxySocket);