Time for action - setting up an IFrame application
Browse to http://www.facebook.com/developers/apps.php and find your application in the list. Select it, then click Edit settings. Choose Facebook Integration from the menu on the left.
The settings can be seen in the previous screenshot. Here's what they mean, and what to set them to:
- Canvas Page: This is the URL, within Facebook, that users will browse to in order to load your application. As we saw above, FarmVille uses http://apps.facebook.com/onthefarm. Type something short and descriptive; it doesn't have to be too clever as users are more likely to reach the page through a Facebook Bookmark, ...