iOS application is unsuable

We are using Meteor to develop hybrid application. The application works on web without any JS error but when we convert to iOS using XCode 6 then application is unsuable. We are unable to login to application which is based on out of accounts-password package

On debugging we are getting the following message on console
http://localhost:3000/sockjs/info?cb=i9iykxy2fvFailed to load resource: Could not connect to the server

We tried using IP instead of local host but no change in results. Any guidance to resolve the problem will be highly appreciated

Naveen Jindal