server {
  listen 80;
  # listen 443;

  # ssl on;
  # ssl_certificate /etc/nginx/ssl/server.crt;
  # ssl_certificate_key /etc/nginx/ssl/server.key;

  server_name localhost;

  large_client_header_buffers 4 32k;

  #GZIP压缩
  gzip on;
  gzip_static on;
  gzip_buffers 4 16k;
  gzip_comp_level 6;
  gzip_vary on;
  gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript;

  #charset koi8-r;
  #access_log  /var/log/nginx/host.access.log  main;

  location /pdfjs {
    root /usr/share/nginx/html;
    index viewer.html viewer.htm;
    try_files $uri $uri/ /pdfjs/web/viewer.html;
    #更新后强制客户端不使用缓存
    if ($request_filename ~* .*\.(?:htm|html)$) {
      add_header Cache-Control "private, no-store, no-cache, must-revalidate, proxy-revalidate";
    }
  }
  location / {
    root /usr/share/nginx/html;
    index index.html index.htm;
    try_files $uri $uri/ /index.html;
    #更新后强制客户端不使用缓存
    if ($request_filename ~* .*\.(?:htm|html)$) {
      add_header Cache-Control "private, no-store, no-cache, must-revalidate, proxy-revalidate";
    }
  }

  #error_page  404              /404.html;

  # redirect server error pages to the static page /50x.html
  #
  error_page 500 502 503 504 /50x.html;
  location = /50x.html {
    root /usr/share/nginx/html;
  }
}