nginx前端页面出现跨域报错问题

nginx前端页面出现跨域报错问题

'Access-Control-Allow-Origin' header contains multiple values '*, *',

解决办法：

      location / {
                if ($request_method = 'OPTIONS') {
                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 http://127.0.0.1:2000;
                proxy_set_header Host $host:$server_port;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header REMOTE-HOST $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

至此问题已经解决