From 6b1a1c9ee888748602969f024d99fb67ba36bec3 Mon Sep 17 00:00:00 2001
From: Fabian Jakobs <fabian@c9.io>
Date: Wed, 18 Nov 2015 16:15:35 +0000
Subject: [PATCH 1/2] the response might have already been sent

fixes https://github.com/c9/newclient/issues/10438
---
 node_modules/vfs-http-adapter/restful.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/node_modules/vfs-http-adapter/restful.js b/node_modules/vfs-http-adapter/restful.js
index 62201003..0a76dd5a 100644
--- a/node_modules/vfs-http-adapter/restful.js
+++ b/node_modules/vfs-http-adapter/restful.js
@@ -11,6 +11,9 @@ module.exports = function setup(mount, vfs, mountOptions) {
 
     var errorHandler = mountOptions.errorHandler || function (req, res, err, code) {
         console.error(err.stack || err);
+        if (res.headersSent)
+            return;
+            
         if (code) res.statusCode = code;
         else if (typeof err.code == "number") res.statusCode = err.code;
         else if (err.code === "EBADREQUEST") res.statusCode = 400;

From 5974323cfcfcae4c0004dd2233188aa019f00503 Mon Sep 17 00:00:00 2001
From: Fabian Jakobs <fabian@c9.io>
Date: Mon, 23 Nov 2015 13:29:05 +0000
Subject: [PATCH 2/2] also call res.end

---
 node_modules/vfs-http-adapter/restful.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/node_modules/vfs-http-adapter/restful.js b/node_modules/vfs-http-adapter/restful.js
index 0a76dd5a..1360f757 100644
--- a/node_modules/vfs-http-adapter/restful.js
+++ b/node_modules/vfs-http-adapter/restful.js
@@ -11,8 +11,10 @@ module.exports = function setup(mount, vfs, mountOptions) {
 
     var errorHandler = mountOptions.errorHandler || function (req, res, err, code) {
         console.error(err.stack || err);
-        if (res.headersSent)
+        if (res.headersSent) {
+            res.end("");
             return;
+        }
             
         if (code) res.statusCode = code;
         else if (typeof err.code == "number") res.statusCode = err.code;