Bootstrap Datepicker vs IE8 -对象不支持这个属性或方法

Here is my code:

这是我的代码:

var dpTo = $('#datetimepicker_to').datepicker({
        format: "yyyy-mm-dd",
        startDate: past,
        endDate: today,
        language: '{{ App::getLocale() }}',
        autoclose: true
    })
    .on('changeDate', function(e) {
        if(e.date != null) {
            $('#datetimepicker_from').datepicker("setEndDate", new Date(e.date));
        }
        else {
            $('#datetimepicker_from').datepicker("setEndDate", today);
        }
    });
var dpTo = $('#dat