NSCocoaErrorDomain Code=256

Question

I have been stuck with this for a while and don\'t seem to get around this.

I am trying to read the contents of an URL as a string from an URL, But i get a weird

Answer 1

I got the same error, the above solution didn't work for me, in my case i was calling dataWithContentsOfURL from within a UNNotificationServiceExtension so i had to update the info.plist file of the UNNotificationServiceExtension with the app transport security entries.