When I am trying to get response from my API I am getting JSON.parse: unexpected end of data at line 1 column 1 of the JSON data this error in Mozilla Firefox Browser but not in Chrome browser.

            $.ajax({

                    dataType: 'json',

                    url: myApiUrl,

                    data: data,

                    type: 'post',

                    success: function(result)

                    { alert(success);}

                  });

Note : assume that myApiUrl variable contains my url and
data contains my parameters.

Following is my Json Response

{type:Sale,status:1,transaction_id:T4U_122a668896_4bdadcc57,ErrorMSG:Success,ErrorCode:00,passive_data:####aaaa,total:10.47,time:31-01-2017 09:56:55}

How should I overcome that problem?