关于vue.js:vue-文件流下载iegoogle兼容

// //从response的headers中获取filename, 后端response.setHeader("Content-disposition", "attachment; filename=xxxx.docx") 设置的文件名;  var patt = new RegExp("filename=([^;]+\\.[^\\.;]+);*");  var contentDisposition = decodeURI(res.headers["content-disposition"]);  var result = patt.exec(contentDisposition);  var fileName = result[1];  fileName = fileName.replace(/\"/g, "");  // IE兼容办法  if (window.navigator && window.navigator.msSaveOrOpenBlob) {    window.navigator.msSaveOrOpenBlob(res.data, fileName);    return;  }  const aLink = document.createElement("a");  var blob = new Blob([res.data], { type: mimeType });  aLink.href = URL.createObjectURL(blob);  aLink.setAttribute("download", fileName); // 设置下载文件名称  document.body.appendChild(aLink);  aLink.click();