ie8下出现这样的错误


html这样写的
 <div class="line_part" id="zip_upload">
                <span id="zip_text">请选择取证报告zip包</span>
                <div class="file">
                    <input id="filebox" type="file" style="width: 100px;left: 0;opacity: 0"/>
                    <span>选择文件</span>
                </div>
                <button class="btn" id="upload">上传</button>
                <div class="progress-out" id="progress1" style="width: 300px; height: 20px;">
                    <div class="percent-show"><span>0</span>%</div>
                    <div class="progress-in"></div>
                </div>
            </div>
js这样写的
  var up_file;
    $('#filebox').on('change', function(e){
        up_file = e.target.files[0];
        console.log(up_file)
        if(up_file.name){
            $('#zip_text').text(up_file.name);
        }    });