perf: remove argument reassignment

Author: dougwilson

HISTORY.md

@@ -4,6 +4,7 @@ unreleased
   * perf: enable strict mode
   * perf: hoist regular expression
   * perf: parse with regular expressions
+  * perf: remove argument reassignment
 
 1.0.1 / 2015-05-04
 ==================

index.js

@@ -46,7 +46,8 @@ var userPassRegExp = /^([^:]*):(.*)$/
  */
 
 function auth(req) {
-  req = req.req || req;
+  // get header
+  var header = (req.req || req).headers.authorization
 
   // parse header
   var header = req.headers.authorization