even is example not working in expressjs 4

[dinukasal]

I tried for hours using this library but it didn't work in expressjs 4 environment. Then I tried whether example is working, it didn't work too.

[jKard1210]

I am having the same problem. I have been able to get the app to work just fine in a local environment, but it doesn't work when I try to deploy it to Heroku