next.js with http-proxy-middleware post request文件上传返回400糟糕reqeust立即

Question

    const res = await axios({
      url: `http://localhost:3000/api/proxy/....`,
      method: "POST",
      headers: {
        "Content-Type": "mutipart/form-data",
      },
      data: formData,
      onUploadProgress: (progressEvent) => {
        const progress = Math.round((progressEvent.loaded * 100) / progressEvent.total);
        console.log(progress);
        handleProgress(progress);
      },
      withCredentials: true,
      timeout: 900000,
      timeoutErrorMessage: "Upload failed: Request time out 15 minutes",
    });

服务器：nest.js + nginx

另一个请求也可以（例如，获取列表、发布 json）。但文件上传请求立即返回 400 bad request 消息是 nginx html

nginx error.log

client send invalid method while reading client request line, clinent: ip, server: empty string, request: strange string(perhaps hex code.)