I am using below code to access rest service hosted on another domain.

$.ajax({

            type: 'GET',

            url: url,

            async: false,

            jsonpCallback: 'jsonCallback',

            contentType: application/json,

            dataType:jsonp,

            success: function(json) {

                alert(json);

            },

            error: function(e) {

               console.log(e.message);

            }

        });

I am able to get the data correctly, but I get this error in firebug in mozilla:

SyntaxError: missing ; before statement

{Hello:World}

Can anyone suggest me what I am doing wrong here? Even though Json data is valid. I tried all the suggestions posted in this question But still I am getting same error.