From c4539046be2994fca498e1f1d103b54d8e7feb02 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Sun, 22 Dec 2013 15:42:12 +0900
Subject: [PATCH] nghttpx: No string copy if no cookie crumbling occurs

---
 src/shrpx_downstream.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/shrpx_downstream.cc b/src/shrpx_downstream.cc
index d3b7ab72..2f1e1fa2 100644
--- a/src/shrpx_downstream.cc
+++ b/src/shrpx_downstream.cc
@@ -236,6 +236,9 @@ void Downstream::crumble_request_cookie()
         }
 
         if(num == 0) {
+          if(first == 0 && j == last) {
+            break;
+          }
           rep_cookie = kv.second.substr(first, j - first);
         } else {
           cookie_hdrs.push_back