如何将基本身份验证标头分配给XMLHTTPREQUEST？

问题描述

我已经阅读了许多关于预检和CORS的答案，所以请不要发布引用我应该阅读的内容的链接。许多答案来自服务器视角，但在这种情况下我是客户端。我是否设置了原始标题？我的假设是这是一个简单的请求，我是对的吗？

I've read many answers of preflight and CORS so please do not post links referencing what I should read. Many of the answers are from a server-perspective, but I am the client in this case. Do I set the origin header? My assumption is that this is a simple request, am I right?

 req.open("POST", url, true);
 req.setRequestHeader( 'Content-Type',   'application/blahblah' );
 req.setRequestHeader( 'Accept', 'application/blahblah' );
 req.setRequestHeader("Authorization", "Basic " + btoa(user + ":" + pass));
 req.send();

但它仍然无效，我的错误：

Yet its still not working, my error:

推荐答案

解决方案：

req.setRequestHeader('Authorization', 'Basic [base64 encoded password here]' );

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