From 27dd0b7405cad58cb10ccdfb1f6195836535e6de Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Fri, 15 Jun 2012 20:56:30 +0900
Subject: [PATCH] Don't forward keep-alive, connection and proxy-connection
 header fields

---
 examples/shrpx_downstream.cc | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/examples/shrpx_downstream.cc b/examples/shrpx_downstream.cc
index 0d5517cb..89496d66 100644
--- a/examples/shrpx_downstream.cc
+++ b/examples/shrpx_downstream.cc
@@ -270,16 +270,17 @@ int Downstream::push_request_headers()
   std::string via_value;
   for(Headers::const_iterator i = request_headers_.begin();
       i != request_headers_.end(); ++i) {
-    if(util::strieq((*i).first.c_str(), "X-Forwarded-Proto")) {
+    if(util::strieq((*i).first.c_str(), "X-Forwarded-Proto") ||
+       util::strieq((*i).first.c_str(), "host") ||
+       util::strieq((*i).first.c_str(), "keep-alive") ||
+       util::strieq((*i).first.c_str(), "connection") ||
+       util::strieq((*i).first.c_str(), "proxy-connection")) {
       continue;
     }
     if(util::strieq((*i).first.c_str(), "via")) {
       via_value = (*i).second;
       continue;
     }
-    if(util::strieq((*i).first.c_str(), "host")) {
-      continue;
-    }
     if(util::strieq((*i).first.c_str(), "expect") &&
        util::strifind((*i).second.c_str(), "100-continue")) {
       continue;