[fix] Make options immutable in RoutingProxy. Fixes #248.

lib/node-http-proxy/http-proxy.js

@@ -101,7 +101,7 @@ var HttpProxy = exports.HttpProxy = function (options) {
   // be provided or the operation will fail with an `origin mismatch`
   // by definition.
   //
-  this.source       = options.source       || { host: 'localhost', port: 8000 };
+  this.source       = options.source       || { host: 'localhost', port: 80 };
   this.source.https = this.source.https    || options.https;
   this.changeOrigin = options.changeOrigin || false;
 };

lib/node-http-proxy/routing-proxy.js

@@ -7,7 +7,7 @@
  */
 
 var events = require('events'),
-    util = require('util'),
+    utile = require('utile'),
     HttpProxy = require('./http-proxy').HttpProxy,
     ProxyTable = require('./proxy-table').ProxyTable;
 
@@ -70,7 +70,7 @@ var RoutingProxy = exports.RoutingProxy = function (options) {
 //
 // Inherit from `events.EventEmitter`.
 //
-util.inherits(RoutingProxy, events.EventEmitter);
+utile.inherits(RoutingProxy, events.EventEmitter);
 
 //
 // ### function add (options)
@@ -227,7 +227,7 @@ RoutingProxy.prototype.proxyRequest = function (req, res, options) {
   }
 
   if (!this.proxies[key]) {
-    this.add(options);
+    this.add(utile.clone(options));
   }
 
   proxy = this.proxies[key];
@@ -267,7 +267,7 @@ RoutingProxy.prototype.proxyWebSocketRequest = function (req, socket, head, opti
   key = this._getKey(options);
 
   if (!this.proxies[key]) {
-    this.add(options);
+    this.add(utile.clone(options));
   }
 
   proxy = this.proxies[key];

package.json

@@ -19,7 +19,8 @@
   "dependencies": {
     "colors": "0.x.x",
     "optimist": "0.3.x",
-    "pkginfo": "0.2.x"
+    "pkginfo": "0.2.x",
+    "utile": "~0.1.7"
   },
   "devDependencies": {
     "request": "1.9.x",