Invalid control character with Python json.loads

The control character can be allowed inside a string as follows,

json_str = json.loads(jsonString, strict=False)

You can find this in the docs for python 2, or the docs for python 3

If strict is false (True is the default), then control characters will be allowed inside strings. Control characters in this context are those with character codes in the 0–31 range, including '\t' (tab), '\n', '\r' and '\0'.