Steps to reproduce:
- I go offline (turn off Wi-Fi, turn off 3G)
- My friend sends me a message through Facebook Messenger.
- I go online.
Expected result: I receive a notification about the message.
Actual result: There's no notification at all.
Extra info: If I'm online when my friend sends me a message, I do receive a notification.
So, how to receive a notification about messages sent when offline?