Has anyone managed to play FairPlay streams using TVJS? According the MediaItem documentation three functions should be set as properties on the MediaItem for FairPlay streaming to work:loadCertificateloadAssetIDloadKeyIn our case all three functions are set but loadKey is never called. Our first suspicion was that we are not calling the callback in loadCertificate correctly - we have tried both calling it with a base64-encoded certificate (that's how we receive it from our server) and a decoded version but the result is the same in both cases - loadAssetID is called but never loadKey and playback never starts.Any more documentation or examples on how to play FairPlay streams using the TVJS Player would be greatly appreciated!Edit: this is the error we get:#T:[Main] #Error #SYSTEM : Error occurred: Error Domain=AVFoundationErrorDomain Code=-11800 "The operation could not be completed" UserInfo={NSUnderlyingError=0x12fe76330 {Error Domain=NSOSStatusErrorDomain Code=-345003 "(null)"}, NSLocalizedFailureReason=An unknown error occurred (-345003), NSLocalizedDescription=The operation could not be completed}