nginx转发解决跨域问题

跨域提示:access-control-allow-origin
解决办法:用nginx进行转发,可解决跨域问题,加上’Access-Control-Allow-Origin’参数,如下

cat /etc/nginx/conf.d/file_proxy.conf 
upstream  file {  #服务器集群名字
        server    192.168.0.131:9999 weight=1 max_fails=0 fail_timeout=20s;
}

server {
    listen 29999 ;

    location / {
        add_header 'Access-Control-Allow-Origin' '*';
        proxy_pass http://file;
        proxy_redirect default;
        proxy_set_header Host $host;
        proxy_set_header 'Access-Control-Allow-Origin' '*';
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       }
    }