NextJS部署AWS Amplify后生成的DOCX文件损坏求助

现象 #

• 本地环境：通过docx.js生成Word文档，使用file-saver的saveAs方法下载，文档生成、下载、打开流程均正常
• Amplify部署后：下载的文档打开时弹出错误提示：

Word experienced an error trying to open the file. Try these suggestions:

• Check the file permissions for the document or drive
• Make sure there is sufficient free memory and disk space
• Open the file with the Text Recovery convertor

• 补充：下载的文档右键点击→属性→勾选「解除锁定」选项后，可正常打开

客户端核心代码 #

点击事件处理函数 #

const handleGenerateBORDocument = async () => {
  setLoading(true);
  handleCloseCreateMenu();
  try {
    const { blob, filename } = await generateBORWordDoc(company);
    if (blob) {
      saveAs(blob, filename);
    }
    if (company.status === "Ready To File") {
      await updateCompanyStatus(company._id, "Awaiting Filing");
      location.reload();
    }
  } catch (err) {
    console.error("Error generating document:", err);
    alert("Failed to generate document");
  } finally {
    setLoading(false);
  }
};

Word文档生成函数 #

export async function generateBORWordDoc(company) {
  const today = new Date();

  const bORRows = handleCreateBORPages(company.beneficialOwners);

  const doc = createCompanyDoc(company, today, bORRows);

  const blob = await Packer.toBlob(doc);
  const filename = `${company.name || "Company"} - ${today.toISOString().slice(0, 10)}.docx`;

  return { blob, filename };
}

已尝试的方案 #

参考建议修改Amplify项目的customHttp.yml文件，添加MIME类型配置：

customHeaders:
  - pattern: "**/*.docx"
    headers:
      - key: Content-Type
        value: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  - pattern: "**/*.zip"
    headers:
      - key: Content-Type
        value: application/zip

疑问 #

为何本地环境正常的Word文档，部署到Amplify后会出现损坏（需解除锁定才能打开）的情况？

内容的提问来源于stack exchange，提问作者Rich