nginx解决vue跨域请求的问题

server {
        listen 9000 default_server;
        server_name localhost;
        root /opt/site_demo/dist;
        location /api {
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
            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';
            proxy_pass https://localhost:8006;
            if ($request_method = 'OPTIONS') {
                return 204;
            }
        }
}