I am working on a Rails 4 app. On my laptop, development is done at localhost:3000. The actual domain of the site is roomidex.com.
localhost:3000
roomidex.com
How can
On the Facebook App page, click "edit App" then click "Advanced" in the left-hand navigation. Then for "Valid OAuth redirect URIs" add http://localhost:3000... or whatever you want the accepted redirect to be.
http://localhost:3000