We are calling StackExchange API to get some Stackoverflow forum data for research. When calling the Stack Exchange API to get the post body, it will return an error for some threads, e.gposts. https://api.stackexchange.com/docs/questions#page=13&pagesize=100&fromdate=2013-09-01&todate=2013-09-02&order=asc&sort=creation&filter=!9ciXf5l7v&site=stackoverflow&run=true (EG:
https://api.stackexchange.com/docs/questions#page=13&pagesize=100&fromdate=2013-09-01&todate=2013-09-02&order=asc&sort=creation&filter=!9ciXf5l7v&site=stackoverflow&run=true9ciXf5l7v&site=stackoverflow)
throws:
But if we exclude the post body by calling this API, https://api.stackexchange.com/docs/questions#page=13&pagesize=100&fromdate=2013-09-01&todate=2013-09-02&order=asc&sort=creation&filter=default&site=stackoverflow&run=true (https://api.stackexchange.com/docs/questions#page=13&pagesize=100&fromdate=2013-09-01&todate=2013-09-02&order=asc&sort=creation&filter=default&site=stackoverflow&run=true), it works fine.
Invalid JSON returned
But if we exclude the post body, EG: [/docs/questions#page=13&pagesize=100&fromdate=2013-09-01&todate=2013-09-02&order=asc&sort=creation&filter=default&site=stackoverflow][2] , it works fine.
We suspect it’s because the post body contains some characters like “\0” which makes the returned jsonJSON invalid.