From 9a408bdfe612adf12c72da688cb2e66e8cc74fd6 Mon Sep 17 00:00:00 2001
From: Justin Matthews <justin.matthews@skype.net>
Date: Thu, 24 Jan 2013 14:13:25 -0800
Subject: [PATCH] Fix for retaining large slab buffers in node core

---
 lib/WebSocketServer.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/WebSocketServer.js b/lib/WebSocketServer.js
index b32280d7a..2a6e64ad7 100644
--- a/lib/WebSocketServer.js
+++ b/lib/WebSocketServer.js
@@ -64,7 +64,11 @@ function WebSocketServer(options, callback) {
       self.emit('error', error)
     });
     this._server.on('upgrade', function(req, socket, upgradeHead) {
-      self.handleUpgrade(req, socket, upgradeHead, function(client) {
+      //copy upgradeHead to avoid retention of large slab buffers used in node core
+      var head = new Buffer(upgradeHead.length);
+      upgradeHead.copy(head); 
+
+      self.handleUpgrade(req, socket, head, function(client) {
         self.emit('connection'+req.url, client);
         self.emit('connection', client);
       });