Earlier quoted context omitted.
Sorry for the bad explanation but I mean to say that when we travel through road it does not necessary that distance form A-B and B-A will be same and you can check my app on http://short-route-demo.ap01.aws.af.cm/ I have only one instance on heroku and it was crashed, so now finally uploaded to appfog
>>paris london berlin >The shortest Distance is paris to london to paris accounting upto 0 kilometers. You've got a bug somewhere.
Ya I know that, sometimes it comes but please refresh the app and try again. If you are getting then download the npm package and set it on your localhost.
Everything is working fine in localhost but when I upload my code to the server like appfog or heroku then these weird issue comes. Visit my app on this link http://short-route-demo.ap01.aws.af.cm/