Sharing data between an iOS 8 share extension and main app

Question

Recently, I\'ve been making a simple iOS 8 share extension to understand how the system works. As Apple states in its App Extension Programming Guide:

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Answer 1

So apparently it works, only when the group name is used as the suite name for NSUserDefaults.

The documentation says NSUserDefaults.standartUserDefaults() should also work but it does not, and this is probably a bug.