title: asp.net forms authentication Global.asax and ajax calls
body: <p>I'm using forms authentication in my current asp.net web forms application "not MVC" and wondering if Global.asax [Application_AuthenticateRequest] and [Application_PostAuthenticateRequest] invoked on every request to the server or Not? i mean does ajax calls count for Global.asax handling or some bugs might occur! because i found in this link conflict:  </p>
  
  <p><a href="http://channel9.msdn.com/forums/TechOff/256322-Strangeness-between-ASPNET-AJAX-and-Globalasax/" rel="nofollow">http://channel9.msdn.com/forums/TechOff/256322-Strangeness-between-ASPNET-AJAX-and-Globalasax/</a></p>
  
  <p>so please advice if its good or bad to handle custom authentication for ajax calls through Global.asax</p>
  
  <p>thanks,</p>