* modules/proxy/mod_proxy_balancer.c (balancer_handler): Check Referer
  to improve on protection against balancer-manager XSRF attacks
  provided by the nonce.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1864695 13f79535-47bb-0310-9956-ffa450edef68
