ngnix的gzip模块对"www""前缀域名没效果？

ngnix.conf

events { worker_connections 1024; }

http{

  include mime.types;
  default_type  application/octet-stream;

  gzip on;
  gzip_min_length 1k;
  gzip_buffers 4 16k;
  #gzip_http_version 1.0;
  gzip_comp_level 6;
  gzip_types application/octet-stream text/javascript application/font-woff text/plain text/css application/javascript image/jpeg image/gif image/png application/xhtml+xml application/xml;
  gzip_vary on;

  server_tokens off;

  upstream  nodejs {
	  server 127.0.0.1:100000;
	  keepalive 64;
  }

  server {
	  server_name www.lizc.me lizc.me;	
	  listen 80;
	  access_log  ./www/access.log;
	  location ~ .*.(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css|woff|woff2|swf)$ {
		  root /node-blog/public/;
		  access_log off;
		  expires 0;
	  }
	  location / {
		  proxy_set_header X-Real-IP $remote_addr;
		  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		  proxy_set_header Host  $http_host;
		  proxy_set_header X-Nginx-Proxy true;
		  proxy_set_header Connection "";
		  proxy_pass http://nodejs;			
	  }
  }

}

以http:// lizc .me/请求页面，火狐显示的结果

以http:// www.lizc .me 请求页面，火狐显示的结果

以http:// 45.32.90 .159/ 请求页面，火狐显示的结果

问题

为什么“http:// www.lizc .me”这个请求的静态文件没有被压缩呢？

感谢

在这里先谢谢大家的回答，非常感谢！