This was working when I first set it up, and all of a sudden with no codebase changes stopped working.
"error": { "message": "Unknown path components: /access_token=AAABqaF6H4qMBAIR9zZC6JtHEeYyrK9ZBKaZAdu67zYwxysJH12d0sW0G4cxX552sRyZCttHvnGoAexLuOJ0XezSL1NMgiKhwuL90yR2sEAZDZD"