Strange issue with Base64 encoded string

I am trying to do a receipt verification for iOS. So I receive the purchase receipt no problem. I have to Base64 encode it and create an Object to send to my server with the base64encoded receipt as the "receipt-data".

No problem encoding the receipt, or creating the object, but when I do and try to stringify it, I get no value in the key value pair?

Here is the code

var encodedReceipt = Ti.Utils.base64encode(e.purchase.receipt).toString();
Ti.API.info(encodedReceipt);
var receiptObject = {};
receiptObject["receipt-data"] = encodedReceipt;
Ti.API.info(JSON.stringify(receiptObject));

Here is the console from the device in Xcode

Sep 20 20:30:32 4S-Iphone-Leo GoPhrazy[1377] <Warning>: [INFO] ewoJInNpZ25hdHVyZSIgPSAiQXFKbk5VeEROQXBlTlJaYXNrcWg0SlRKVWJXTnVBOWlPbi8v
 
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    Cn0=
Sep 20 20:30:32 4S-Iphone-Leo GoPhrazy[1377] <Warning>: [INFO] {"receipt-data":{}}

See the last line where there is empty brakets? The JSON.stringify can't seem to stringify the base64encoded string.

As you can see also strangely the base64code string comes out with these spaces. It's really weird.

I can't seem to figure this out.

Thanks for your help.