This application is trying to make a connection between the facebook and goodreturn.org.
They want to let the facebook user can access to www.goodreturn.org by the application.
Then the user can use the facebook account to login to the goodreturn. So the goodreturn can
use facebook to make them more famous and attract more users to visit their website.
That is a very good thing cause their work for charity organization. The more people visit the
website the more chance they can get money and lent them to the people who need .
One more thing , because the website have the donate function which would involve with money.
So the code should be paid more attention on the safety and security .