This definitely WAS a bug per: https://developers.facebook.com/bugs/532388000129311
It appears to be resolved now. A pretty heinous breakage on the part of the Facebook platform, if you ask me.
Question
Last year, when our Facebook canvas app sent an app request using the FB.ui request dialog API, the request showed up in 3 places for the recipient(s):
It appears that Facebook has removed the notification when you send someone an app request. I've tested this on two different apps and sending an app request does not result in a notification being sent to the recipient.
Two questions:
Solution
This definitely WAS a bug per: https://developers.facebook.com/bugs/532388000129311
It appears to be resolved now. A pretty heinous breakage on the part of the Facebook platform, if you ask me.