When calling the Stack Exchange API to get the post body, it will return an error for some posts. EG:  
[/docs/questions#page=13&pagesize=100&fromdate=2013-09-01&todate=2013-09-02&order=asc&sort=creation&filter=!9ciXf5l7v&site=stackoverflow][1]
throws:

> Invalid JSON returned

<br>
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 JSON invalid. 


  [1]: 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
  [2]: 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