CORS跨域的问题？

Question

下面的问题怎么解决？

Access to XMLHttpRequest at 'http://127.0.0.1:7070/api/GetIdCard?imageFormat=1' from origin 'http://192.168.1.22:4000' has been blocked by CORS policy: Request header field authorization is not allowed by Access-Control-Allow-Headers in preflight response.

Answer 1

1. 服务器响应头添加 Access-Control-Allow-Headers: authorization
2. 使用代理

Access-Control-Allow-Headers

Answer 2

《九种跨域方式实现原理》

Answer 3

在网上找了一个解决方法，如下：
https://www.chunten.com/article/283/2.html