nginx反向代理ajax，解决跨域问题

server {
        listen       8000;
        server_name  somename  alias  another.alias;
        location /a {
            add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
            add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';    
            add_header 'Access-Control-Allow-Credentials' 'true'; 
            proxy_redirect          off;
            
            proxy_pass https://www.oschina.net/news/widgets/_news_index_all_list?p=2&type=ajax; 
        }
}

server { listen 8000; server_name somename alias another.alias; location /a { add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range'; add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';add_header 'Access-Control-Allow-Credentials' 'true'; proxy_redirect off; proxy_pass https://www.oschina.net/news/widgets/_news_index_all_list?p=2&type=ajax; } }