浏览器控制台报错

Access to XMLHttpRequest at ‘https://www.aaa’ from origin
‘https://www.bbb’ has been blocked by CORS policy: No
‘Access-Control-Allow-Origin’ header is present on the requested
resource.

解决办法

使用nginx在server块下或location块下为请求添加请求头都可以解决跨域问题。

add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Methods' 'GET,POST,DELETE';
add_header 'Access-Control-Allow-Header' 'Content-Type,*';