From 9ad43778b7e80cd49d2aa3e96ec2376a7fc0db2d Mon Sep 17 00:00:00 2001
From: Tymoteusz Paszun <tpaszun@gmail.com>
Date: Tue, 13 May 2014 09:24:08 +0200
Subject: [PATCH] fixed Host header replacement - remembers if header is
 already replaced and does not remove _transform method

---
 client.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/client.js b/client.js
index c6e6164..a52287c 100644
--- a/client.js
+++ b/client.js
@@ -30,10 +30,14 @@ HeaderHostTransformer.prototype._transform = function (chunk, enc, cb) {
 
     // after replacing the first instance of the Host header
     // we just become a regular passthrough
-    self.push(chunk.replace(/(\r\nHost: )\S+/, function(match, $1) {
-        self._transform = undefined;
-        return $1 + self.host;
-    }));
+    if (!self.replaced) {
+        self.push(chunk.replace(/(\r\nHost: )\S+/, function(match, $1) {
+            self.replaced = true;
+            return $1 + self.host;
+        }));
+    } else {
+        self.push(chunk);
+    }
     cb();
 };