honkmaster/TTOpenInAppActivity — pull request #9 by vtourraine (2013-09-17 14:02:50+00:00)
Title: Make sure that the URL points to a local file

_“A document interaction controller, along with a delegate object, provides in-app support for managing user interactions with files in the **local** system.”_

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIDocumentInteractionController_class/Reference/Reference.html