“ Content-Type”在JavaScript中显示了意外的标记

Question

我正在使用SMTP从我的ReactJS应用程序发送ZIP文件。我可以将PNG图片作为附件发送，而无需将任何“ Content-Type”指定为SMTP属性。

但是当我添加了Content-Type : "application/octet-stream"来发送zip文件时，它显示了[[位于“-”处的意外令牌。

我应该用什么替换它以发送zip文件？

这是我的SMTP连接代码；

sendEmail = (url, filename)=> {
      Email.send({
      Host: "smtp.gmail.com",

      Content-Type : "application/octet-stream",

      Username : "[email protected]",
      Password : "xxxxxxxxxxxxxx",
      To : '[email protected]',
      From : "[email protected]",
      Subject : "Your file is ready! ",
      Body : "Body of the Email",
      Attachments : [
        {
            name : filename,
            path : url
        }]
      }).then(
        message => alert("Mail Sent")
      );
    }

这就是它呈现的内容；Image of the output

Answer 1

尝试将Content-Type替换为“ Content-Type”。像这样

Email.send({
      Host: "smtp.gmail.com",
      "Content-Type" : "application/octet-stream",
      Username : "[email protected]",
      Password : "xxxxxxxxxxxxxx",
      To : '[email protected]',
      From : "[email protected]",
      Subject : "Your file is ready! ",
      Body : "Body of the Email",