nginx 跨域通用解决方案 - 简单教程，简单编程

/usr/local/nginx/conf/cors.conf

    add_header 'Access-Control-Allow-Credentials' "true" always;
    add_header 'Access-Control-Allow-Origin' '$http_origin' always;
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
    add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization,Content-Disposition' always;
    add_header 'Access-Control-Expose-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization,Content-Disposition' always; 
   add_header 'Access-Control-Max-Age' 1728000 always;

if ($request_method = 'OPTIONS') {
    add_header 'Access-Control-Allow-Credentials' "true" always;
    add_header 'Access-Control-Allow-Origin' '$http_origin' always;
    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
    add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization,Content-Disposition' always;
    add_header 'Access-Control-Expose-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization,Content-Disposition' always;
   add_header 'Access-Control-Max-Age' 1728000 always;
    #add_header 'Content-Length' 0;
    add_header 'Content-Type' 'text/plain; charset=utf-8';

    return 200;
}

然后在需要的地方添加

location / {
    include cors.conf
}