CORS headers，那些以Access-Control-开头的都是响应 headers，必须设置通过并从服务器发送到浏览器，而不是相反，这就是您出错的原因

CORS headers, those that start with Access-Control- are response headers, they must be set by and sent from the server to the browser, not the other way around, that's the reason for your error