From 2f2a652bc9420f2d05ddfe914048cfe5c327d7c7 Mon Sep 17 00:00:00 2001
From: Michael Ficarra <github@michael.ficarra.me>
Date: Tue, 26 Nov 2013 13:11:15 -0600
Subject: [PATCH] fixes #1826: res.redirect('toString') fails with 500

Removed the unused map and corrected the doc comment.
---
 lib/response.js | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/lib/response.js b/lib/response.js
index e160c06a..25c49eed 100644
--- a/lib/response.js
+++ b/lib/response.js
@@ -605,8 +605,7 @@ res.cookie = function(name, val, options){
 /**
  * Set the location header to `url`.
  *
- * The given `url` can also be the name of a mapped url, for
- * example by default express supports "back" which redirects
+ * The given `url` can also be "back", which redirects
  * to the _Referrer_ or _Referer_ headers or "/".
  *
  * Examples:
@@ -637,11 +636,8 @@ res.location = function(url){
     , req = this.req
     , path;
 
-  // setup redirect map
-  var map = { back: req.get('Referrer') || '/' };
-
-  // perform redirect
-  url = map[url] || url;
+  // "back" is an alias for the referrer
+  if(url === 'back') url = req.get('Referrer') || '/';
 
   // relative
   if (!~url.indexOf('://') && 0 != url.indexOf('//')) {
-- 
2.11.4.GIT