1、bootstrap fileinput

修改 overwriteInitial: false和data-overwrite-initial=“false”

1、报错的
 <div class="form-group">
            <div class="file-loading">
                <input id="file-1" type="file" multiple class="file" data-min-file-count="1">
            </div>
        </div>

2、修改
 <div class="form-group">
            <div class="file-loading">
                <input id="file-1" type="file" multiple class="file" data-overwrite-initial="false" data-min-file-count="1">
            </div>
        </div>


<script>

    $("#file-0").fileinput({
      
      
        theme: 'fa5',
        uploadUrl: '#',
        overwriteInitial: false,
    }).on('filepreupload', function(event, data, previewId, index) {
      
      
        alert('The description entered is:\n\n' + ($('#description').val() || ' NULL'));
    });
</script>