A static page can not handle POST, so nginx return 405. There is workaround...

nginx_static_post_405.conf

 
# work-around 405 for POST to static URL
upstream my-static-server-name {
  server 11.111.111.111:8080;
}

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.
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  # A static page can not handle POST, so nginx return 405.
  # There is workaround:

  error_page   405   =200 @405;

  location = @405 {

    index  index.html index.htm;
    # needed to forward user's IP address to rails
    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_redirect off;
    proxy_max_temp_file_size 0;
    proxy_next_upstream error;
    # 这个设置是不可少的。否则仍然是post方式请求静态文件。
    proxy_method GET;

    if (-f $request_filename) {
      break;
    }
    if (-f $request_filename.html) {
      rewrite (.*) $1.html break;
    }
    if (!-f $request_filename) {
      proxy_pass http://my-static-server-name;
      break;
    }
  }