IE浏览器下报 SCRIPT1004: 缺少 ';' 错误

jQuery.ajax({
    type: 'POST',
    url: '/api/jsonws/invoke',
    contentType: "application/x-www-form-urlencoded",
    data: formData,
    success: function (data) {
       
        if (data.statusCode == 200) {
            $.iMessager.alert(data.title,data.message , 'messager-info'); 
            // $("#mainDg").iDatagrid('options').queryParams=listParam;
             $('#mainDg').iDatagrid('reload'); 
        } else {
            $.iMessager.alert(data.title,data.message , 'messager-info'); 
        }
    },
    error: function (data) {
       // alert("error"); IE SCRIPT1004: 缺少 ';' 
        $('#mainDg').iDatagrid('reload'); 
    }
});

{"title":"操作提示","message":"成功","statusCode":200}