nginx proxy request of object on s3

nginx_proxy_s3

server{
    listen 80;
    server_name test-mccdn.xxx.com;

    location / {
        #resolver 8.8.8.8;
        #rewrite ^([^.]*[^/])$ $1/ permanent;

        proxy_http_version     1.1;
        proxy_set_header       Connection "";
        proxy_set_header       Authorization '';
        proxy_set_header       Host qa-stg-file.s3.cn-northwest-1.amazonaws.com.cn;
        proxy_hide_header      x-amz-id-2;
        proxy_hide_header      x-amz-request-id;
        proxy_hide_header      x-amz-meta-server-side-encryption;
        proxy_hide_header      x-amz-server-side-encryption;
        proxy_hide_header      Set-Cookie;
        proxy_ignore_headers   Set-Cookie;
        proxy_intercept_errors on;
        add_header             Cache-Control max-age=31536000;
        proxy_pass             http://qa-stg-file.s3.cn-northwest-1.amazonaws.com.cn/;

    }
}
server_tokens off;
~