Merged pull request #39 from timmattison/master.

Looks like this may fix the issue that I reported

lib/node-http-proxy.js

@@ -45,11 +45,9 @@ exports.version = [0, 5, 0];
 // and sets the `maxSockets` property appropriately.
 //
 function _getAgent (host, port, secure) {
-  var agent = !secure ? http.getAgent(host, port) : https.getAgent({ 
-    host: host, 
-    port: port 
-  });
-
+  var options = { host: host, port: port };
+  var agent = !secure ? http.getAgent(options) : https.getAgent(options);
+
   agent.maxSockets = maxSockets;
   return agent;
 }
@@ -668,4 +666,4 @@ HttpProxy.prototype.proxyWebSocketRequest = function (req, socket, head, options
   if (options.buffer && !errState) {
     options.buffer.resume();
   }
-};
+};