push notifications with param don't receive windows phone

push notifications with param don't receive windows phone

I've come across a very strange problem. I've implemented push
notifications inside my application and it works fine, but only If I don't
send a param with the push notification. My application is a Windows Phone
8 Application.
For some reason the push notifications with the param won't arrive on my
phone, but without the param they do. I've tried a lot if "inputs" to
check if it was because it wasn't a valid uri, string, etc, but nothing
happens.
Even stranger is that the response from the Microsoft server says that it
is delivered.
HTTP/1.1 200 OK Cache-Control: private Server: Microsoft-IIS/7.5
X-DeviceConnectionStatus: Connected X-NotificationStatus: Received
X-SubscriptionStatus: Active X-MessageID:
00000000-0000-0000-0000-000000000000 ActivityId:
381e48cc-7a1d-4076-979d-953a622bfc7d X-Server: DB3MPNSM009
X-AspNet-Version: 4.0.30319 X-Powered-By: ASP.NET Date: Fri, 06 Sep 2013
19:17:32 GMT Content-Length: 0
I've have no clue any more what the problem could be. I hope someone can
help me out.
Regards,
Tom