Always Processing..... using Server-side processing

nullpointer

My table only shows Processing..... using Server-side processing
If I manually put the ajax URL in the browser I got this:
{"products":[{"licenceNumber":"MyDeviceNumber","productName":"MyproductName","category":"Mycategory","manufacturer":"Mymanufacturer","countries":"MyCountries","retailer":"Myretailer"}]}

http://debug.datatables.net/ewenav