SyntaxError：JSON.parse：JSON数据的第2行第1列的意外字符

Question

我输入了json文件@ JSON，当我尝试用下面的代码解析它时：

<script>

    //When DOM loaded we attach click event to button
    $(document).ready(function() {

        //after button is clicked we download the data
        $('.button').click(function(){

            //start ajax request
            $.ajax({
                url: "input_json.json",
                //force to handle it as text
                dataType: "text",
                success: function(data) {

                    //data downloaded so we call parseJSON function 
                    //and pass downloaded data
                    var json = $.parseJSON(data);
                    //now json variable contains data in json format
                    //let's display a few items
                    $('#results').html('Paper name: ' + json.Papername + '<br />Maximum Time: ' + json.MaxTime);
                }
            });
        });
    });
</script>

和HTML as：

 <input type="button" value="Get and parse JSON" class="button" />

当我点击此按钮时，我在Firefox控制台中收到错误

SyntaxError: JSON.parse: unexpected character at line 2 column 1 of the JSON data

请帮忙解决这个问题。