From 0e36912906640fdb007e0492b75c3f6a7b580ec6 Mon Sep 17 00:00:00 2001
From: indexzero <charlie.robbins@gmail.com>
Date: Thu, 8 Sep 2011 16:44:25 -0700
Subject: [PATCH] Fixed large DoS vector in the middleware implementation

---
 lib/node-http-proxy.js | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/lib/node-http-proxy.js b/lib/node-http-proxy.js
index 02aae9c..ea05ab1 100644
--- a/lib/node-http-proxy.js
+++ b/lib/node-http-proxy.js
@@ -222,12 +222,19 @@ exports.stack = function stack (middlewares, proxy) {
     handle = function (req, res) {
       var next = function (err) {
         if (err) {
-          throw err;
-          //
-          // TODO: figure out where to send errors.
-          // return error(req, res, err);
-          //
+          if (res._headerSent) {
+            res.destroy();
+          } 
+          else {
+            res.statusCode = 500;
+            res.setHeader('Content-Type', 'text/plain');
+            res.end('Internal Server Error');
+          }
+          
+          console.error('Error in middleware(s): %s', err.stack);
+          return;
         }
+        
         child(req, res);
       }