Hi Sarah!

Rails "injects" a few actions to your server when running in
development, and this link takes you to one of them
(/rails/info/properties).

In production they're disabled probably to avoid the overhead -- plus
the information displayed in there can be very useful for attackers
looking for specific Rails versions.

Pedro

On Tue, Sep 8, 2009 at 9:52 PM, Sarah Allen<[email protected]> wrote:
>
> Hi everyone,
>
> So, I'm using my favorite hosting service in a Ruby on Rails class I'm
> teaching.  I get the students to post a vanilla rails app on Heroku
> for starters and one of them clicks on the link "About your
> application’s environment"
>
> "Why?" she asks, "does it say: The page you were looking for doesn't
> exist, when it works in my local environment?"
>
> "um..." I say, "Rails must be doing something Heroku doesn't allow."
> which I consider to be a totally lame answer.
>
> I'll give a gold star to anyone who can give me a better, more precise
> answer.  You can see the problem here:  http://falling-summer-57.heroku.com/
>
> Thanks,
> Sarah
> >
>

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