From 2c44039a7c30b190043da654ee7e5aed0304e979 Mon Sep 17 00:00:00 2001
From: Jake Furler <jfurler@atlassian.com>
Date: Wed, 14 Jun 2017 14:46:54 +1000
Subject: [PATCH] issue #953: stop using writeHead

object.keys in web-incoming.js results in a non-deterministic ordering of keys, which means that in web-outgoing writeHead might be called before setHeader, which throws an error
---
 lib/http-proxy/passes/web-outgoing.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/http-proxy/passes/web-outgoing.js b/lib/http-proxy/passes/web-outgoing.js
index 05ded88..46352f6 100644
--- a/lib/http-proxy/passes/web-outgoing.js
+++ b/lib/http-proxy/passes/web-outgoing.js
@@ -137,9 +137,10 @@ module.exports = { // <--
   writeStatusCode: function writeStatusCode(req, res, proxyRes) {
     // From Node.js docs: response.writeHead(statusCode[, statusMessage][, headers])
     if(proxyRes.statusMessage) {
-      res.writeHead(proxyRes.statusCode, proxyRes.statusMessage);
+      res.statusCode = proxyRes.statusCode;
+      res.statusMessage = proxyRes.statusMessage;
     } else {
-      res.writeHead(proxyRes.statusCode);
+      res.statusCode = proxyRes.statusCode;
     }
   }