无法在Bootstrap 3弹出窗口中显示html

<!-- 弹出窗口触发按钮 -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">打开弹出窗口</button>

<!-- 弹出窗口的HTML代码 -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h4 class="modal-title" id="myModalLabel">弹出窗口标题</h4>
      </div>
      <div class="modal-body">
        <div id="modalContent"></div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
      </div>
    </div>
  </div>
</div>

<!-- JavaScript/jQuery代码 -->
<script>
  $(document).ready(function() {
    $('#myModal').on('show.bs.modal', function(event) {
      var modal = $(this);
      var modalContent = modal.find('#modalContent');
      
      // 使用load()函数加载HTML内容
      modalContent.load('path/to/your/html/file.html');
    });
  });
</script>