I have implemented a servlet in Java that handles the credits communications with Facebook (as per the API). I implemented the servlet to perform the same functionality as the example php code and following the guidelines in the API.
I send FB the id of the item and get a response with the method "payments_get_items". I respond correctly which creates a popup dialog asking for payment confirmation (with all the product data). When I click confirm, Facebook does not make another call to my servlet but instead tells me my app is not responding. I find this strange and have found no way to resolve this issue.
Below is the JSON i am sending back to FB when i am asked to perform "payments_get_items". image_URL is an actual URL which has works. Am i possibly missing something in my response?
{"content":[{"description":"test","image_url":image_URL,"item_id":"siPremiumShotgun","price":2,"product_url":image_URL,"title":"Premium Shotgun"}],"method":"payments_get_items"}
Many thanks
