Spec ambiguities of JSON mostly come from the insufficient description of data model and well-formedness and not from the syntax itself. Say, to this day (inclu

Spec ambiguities of JSON mostly come from the insufficient description of data model and well-formedness and not from the syntax itself. Say, to this day (including RFC 8259) duplicate keys from the JSON object are not explicitly forbidden, even though most applications require that. Probably the only issue arisen from the JSON syntax proper would be the treatment of line and paragraph separators.