每当我运行命令“ bundle exec cap登台部署”时，输入要部署的分支名称后，它就会显示 ExecJS :: ProgramError意外字符'`'。但是，我似乎无法在我的.js文件中找到它。我怀疑问题出在$ .param（query）部分。但是我不知道如何解决它。

抱歉，代码混乱。我还在学习。谢谢。

     $(function() {
    $("#export_reports").submit(function(e) {
        var from_date = $('input[name ="from_date"]').val();
        var to_date = $('input[name ="to_date"]').val();
        var type = $('select[name ="report_type"]').val();
        type = type == "report" ? "json" : type;
        var table = $('select[name ="spree_table"]').val();
        var url = '/admin/generate/reports/';
        var query = {
            spree_table: table,report_type: 'report',from_date: from_date,to_date: to_date,commit: 'Generate'
        }
            var api = url + table.toString().toLowerCase() + "_" + from_date.toString().replace(/\//g,'_')+ '_' + to_date.toString().replace(/\//g,'_') + '.' + type;

            if (type == 'json') {
                e.preventDefault();
                cleanUpTable();

                $.ajax({
                    'url': api + '?' + $.param(query),'method': "GET",'contentType': 'application/json'
                }).done( function(response) {
                    var columns = [];

                    if (response.data.length > 0) {
                        var keys = Object.keys(response.data[0]);

                        for (var i = 0; i < keys.length; i++) {
                            columns.push({
                                'title': keys[i],'data': keys[i]
                            })
                        }

                        $('#report_table').DataTable( {
                            "aaData": response.data,"columns": columns,responsive: true,"columnDefs": [
                                {
                                    "render": function ( data,type,row ) {
                                        return `<a href="/admin/ads/${row.id}/edit" target="_blank">${row.id}</a>`;
                                    },"targets": 0
                                },{
                                    "render": function ( data,row ) {
                                        return `<a href="/admin/ads/${row.id}/edit" target="_blank">${row.code}</a>`;
                                    },"targets": 1
                                },row ) {
                                        return `<a href="/admin/reports/ads/${row.id}/orders?${$.param(query)}" target="_blank">${row.total}</a>`;
                                    },"targets": 2
                                },row ) {
                                        return `<a href="/admin/reports/ads/${row.id}/orders?${$.param(query)}" target="_blank">${row.booking}</a>`;
                                    },"targets": 3
                                },]
                        })
                    } else {
                        alert("No records found.");
                    }
                });
                $("#error_report").hide();
            }else{
                $(this).attr('action',api);        
            }
    });
});

function cleanUpTable() {
    $('#report_table').hide();

    if ($.fn.dataTable.isDataTable('#report_table')) {
        $('#report_table').DataTable().clear();
        $('#report_table').DataTable().destroy();
    }

    $('#report_table thead tr').html('');
    $('#report_table').show();
}