动态文本框在本地PC上工作但不能正常工作

Question

我正在使用jquery在模态中添加文本框，然后将值ajax存储到我的数据库中，但我很惊讶地看到相同的代码在本地PC上正常工作，而同样不能正常工作。这是我的代码

模态（表格）

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
    return THE_SPACING_AMOUNT
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
    return SPACING_BETWEEN_ROWS
}

jquery

<form class="form-horizontal" role="form" id="form-head_sub">
              <div class="form-group">
                <label class="control-label col-sm-3" for="">Head Name</label>
                <div class="col-sm-9">
                  <input type="text" name="head" class="form-control" id="Head-name" placeholder="Enter Head Name" required="">
                </div>
              </div>
              <div class="form-group">
                <label class="control-label col-sm-3" for="">Sub Head</label>
                <div class="col-sm-9">
                  <input type="text" name="subhead[]" class="sub" id="sub-head" placeholder="Enter Sub Head Name" required="">
                </div>
                <label class="control-label col-sm-3" for=""> </label>
                <div class="col-sm-9" id="target">
                </div>
              </div>
                 <div id="container"></div>
              <input type="button" id="add" value='add'/>

              <div class="form-group"> 
                <div class="col-sm-offset-2 col-sm-10">
                  <button type="submit" class="btn btn-success" name="save">save
                  <span class="glyphicon glyphicon-plus-sign" aria-hidden="true"></span>
                  </button>
                </div>
              </div>

            </form>

AJAX页面

$(document).on('submit','#form-head_sub', function(event){
event.preventDefault();
var head = $('#Head-name').val();
var allValue = new Array();
$('.sub').each(function(){
allValue.push( $(this).val() ); 
});
$.ajax({
    url: 'data/add_headsub.php',
    type: 'post',
    data: {
        head:head,
        subhead:allValue,
        },
.....

除了动态文本框值

之外，所有值都插入数据库中