Why on Heroku, if I click on "About your application’s environment", it will say page not found?

Question

Example: http://foobar-192-305.heroku.com/

If I click on "About your application’s environment"

it will say:

The page you were looking for doesn't exist.

You may have mistyped the address or the page may have moved.

but if I run the server in development mode on my computer, it will pop down the info. (and all files are added and committed with git, as git status shows everything committed. This app is using Ruby 1.9.2, Rails 3.0.5)

Answer 1

The welcome page is not ment for production. so the url where the data is loaded from doesn't exist (http://foobar-192-305.heroku.com/rails/info/properties)