Selenium and node-replay

Hi I am having trouble connecting node-replay to selenium (where I am running my protractor tests for my angularjs app).

My tests run with grunt: grunt protractor

And they work fine.

But now I have installed node-replay and added the following lines to my test file:

var Replay = require('replay');
Replay.localhost('127.0.0.1:9000/');

And all of my tests fail when I try to run node-replay in record mode

 REPLAY=record grunt protractor

even though I'm running my tests locally on '127.0.0.1:9000/' do I have to add anything about node-replay to my protractor config file?