Chart.js在本地主机上工作，但上传到服务器后无法工作

Question

代码

CHART JS
$(function () {
    /* ChartJS
     * -------
     * Here we will create a few charts using ChartJS
     */
     var areaChartData = {
      labels  : ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
      datasets: [
        {
          label               : 'Electronics',
          fillColor           : 'rgba(210, 214, 222, 1)',
          strokeColor         : 'rgba(210, 214, 222, 1)',
          pointColor          : 'rgba(210, 214, 222, 1)',
          pointStrokeColor    : '#c1c7d1',
          pointHighlightFill  : '#fff',
          pointHighlightStroke: 'rgba(220,220,220,1)',
          data                : report_data
        }
      ]
    }

    //-------------
    //- BAR CHART -
    //-------------
    var barChartCanvas                   = $('#barChart').get(0).getContext('2d')
    var barChart                         = new Chart(barChartCanvas)
    var barChartData                     = areaChartData
    barChartData.datasets[0].fillColor   = '#00a65a';
    barChartData.datasets[0].strokeColor = '#00a65a';
    barChartData.datasets[0].pointColor  = '#00a65a';
    var barChartOptions                  = {
      //Boolean - Whether the scale should start at zero, or an order of magnitude down from the lowest value
      scaleBeginAtZero        : true,
      //Boolean - Whether grid lines are shown across the chart
      scaleShowGridLines      : true,
      //String - Colour of the grid lines
      scaleGridLineColor      : 'rgba(0,0,0,.05)',
      //Number - Width of the grid lines
      scaleGridLineWidth      : 1,
      //Boolean - Whether to show horizontal lines (except X axis)
      scaleShowHorizontalLines: true,
      //Boolean - Whether to show vertical lines (except Y axis)
      scaleShowVerticalLines  : true,
      //Boolean - If there is a stroke on each bar
      barShowStroke           : true,
      //Number - Pixel width of the bar stroke
      barStrokeWidth          : 2,
      //Number - Spacing between each of the X value sets
      barValueSpacing         : 5,
      //Number - Spacing between data sets within X values
      barDatasetSpacing       : 1,
      //String - A legend template
      legendTemplate          : '<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<datasets.length; i++){%><li><span style="background-color:<%=datasets[i].fillColor%>"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>',
      //Boolean - whether to make the chart responsive
      responsive              : true,
      maintainAspectRatio     : true
    }

    barChartOptions.datasetFill = false
    barChart.Bar(barChartData, barChartOptions)   })   </script>

html

<div class="box">
            <div class="box-header">
              <h3 class="box-title">Total Paid Orders - Report</h3>
            </div>
            <!-- /.box-header -->
            <div class="box-body">
              <div class="chart">
                <canvas id="barChart" style="height:250px"></canvas>
              </div>
            </div>
            <!-- /.box-body -->
          </div>
          <!-- /.box -->
          <div class="box">
            <div class="box-header">
              <h3 class="box-title">Total Paid Orders - Report Data</h3>
            </div>
            <!-- /.box-header -->
            <div class="box-body">
              <table id="datatables" class="table table-bordered table-striped">
                <thead>
                <tr>
                  <th>Month - Year</th>
                  <th>Amount</th>
                </tr>
                </thead>
                <tbody>

                  <?php foreach ($results as $k => $v): ?>
                    <tr>
                      <td><?php echo $k; ?></td>
                      <td><?php 

                        echo $company_currency .' ' . $v;
                        //echo $v;

                      ?></td>
                    </tr>
                  <?php endforeach ?>