Kapsel Push notifications on iOS devices

Hi All,

We are stuck trying to send out Push notifications to iOS devices, we followed the excellent blow by Daniel Van Leeuwen Getting Started with Kapsel - Part 4 -- Push and the one by Daniel Silva [Kapsel] How to use the Push plugin on iOS , but unfortunately we are not able to see any notifications on iPhones/iPads.

We are using the Apple sandbox server, the certificate and provisioning profiles are OK for our bundle ID, and network communication seems to be OK as per the following Apple page: https://support.apple.com/en-us/HT203609

The devices are successfully registered with SMP and with APNS, we get a token confirmation but unfortunately the SMP log reads:

#WARN#APNSNotificationProcessor:extractPayload# Not a json object...#null#11798#null#3#null |

it connects successfully to the Apple sandbox servers:

getApnsService# APNS server address - gateway.sandbox.push.apple.com#null#11798#null#7#null |

getApnsService# APNS server port - 2195#null#11798#null#8#null |

getApnsService# APNS feedback address - feedback.sandbox.push.apple.com#null#11798#null#9#null |getApnsService# APNS feedback port - 2196#null#11798#null#10#null |

getApnsService# APNS feedback port - 2196#null#11798#null#10#null |

and then:

#ERROR# APNSNotificationStatusListener:connectionClosed##Connection closed: 8#null#11801#null#0#null |

Is the problem related to the JSON payload we are trying to use (NB: the same payload works 100% with Android and GCM)

This is the example payload:

{

    "alert": "New Push notification",

    "data": "Test message"

}

Thanks in advance for any help you might be able to provide.

Max