Problem when API returns NULL, it is missing the "" that should be around, this shifts all the results of scripts
Example "Country ": null
should be "country ": "null"
This sounds more to be a problem with how you're parsing it than our code.
NULL is a keyword to mean that it has not been set. It is different to the literal string "NULL" which would mean that it has been specifically set to that value.
TL;DR Our current implementation is valid JSON.