From 9a1f722a0540f382bf83809419d03ca8e096a163 Mon Sep 17 00:00:00 2001
From: Julian Lam <julian@nodebb.org>
Date: Tue, 20 Feb 2018 14:51:41 -0500
Subject: [PATCH] appending X-Upstream-Hostname header in dev mode

---
 src/middleware/headers.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/middleware/headers.js b/src/middleware/headers.js
index eb11ff8718..035608eab6 100644
--- a/src/middleware/headers.js
+++ b/src/middleware/headers.js
@@ -1,5 +1,7 @@
 'use strict';
 
+var os = require('os');
+
 var meta = require('../meta');
 
 module.exports = function (middleware) {
@@ -15,6 +17,10 @@ module.exports = function (middleware) {
 			headers['Access-Control-Allow-Origin'] = encodeURI(meta.config['access-control-allow-origin']);
 		}
 
+		if (process.env.NODE_ENV === 'development') {
+			headers['X-Upstream-Hostname'] = os.hostname();
+		}
+
 		for (var key in headers) {
 			if (headers.hasOwnProperty(key) && headers[key]) {
 				res.setHeader(key, headers[key]);