Nginx王八组合拳-nginx配置解决跨域问题

配置如下：

server {
        listen       9999;
        server_name  172.16.3.33;

        location / {
            if ($request_method = 'OPTIONS') {
                    add_header Access-Control-Allow-Origin $http_origin;
                    add_header 'Access-Control-Allow-Credentials' true;
                    add_header 'Access-Control-Allow-Headers' 'CJCX,cjcx,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,X-Auth-Token';
                    add_header 'Access-Control-Max-Age' 1728000;
                    add_header 'Content-Type' 'text/plain charset=UTF-8';
                    add_header 'Content-Length' 0;
                    return 204;
                }
            proxy_pass http://172.16.3.33:8083;
        }
        add_header Access-Control-Allow-Origin $http_origin;
        add_header Access-Control-Allow-Methods 'GET,POST,OPTIONS,PUT';
        add_header Access-Control-Max-Age 1728000;
        add_header Access-Control-Allow-Credentials 'true';
        add_header Access-Control-Expose-Headers 'X-Auth-Token';
        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,X-Auth-Token';

        ##### 暂时没有用到，以上配置未解决问题时可放开一试
        # proxy_hide_header 'Host';
        # proxy_hide_header 'Origin';
        # proxy_hide_header 'Referer';
        # proxy_hide_header 'Sec-Fetch-Dest';
        # proxy_hide_header 'Sec-Fetch-Mode';
        # proxy_hide_header 'Sec-Fetch-Site';
        # proxy_hide_header 'User-Agent';
    }