c# - Application_PreRequestHandlerExecute redirect during 404 page not found -

i trying log referrers several domains own 301 permanent redirect our secure site. have 2 web sites via iis.

http://www.cool_domain.com/ redirect https://www.real_domain.com/ example. during process, want log, , redirect during prerequesthandlerexecute method.

if page not found (404), application_prerequesthandlerexecute not fire. if exist, fires fine.

void application_prerequesthandlerexecute(object sender, eventargs e) {     if (context.handler irequiressessionstate || context.handler ireadonlysessionstate)     {         logpage(request);         httpcontext.current.response.redirectpermanent("https://www.real_domain.com/", true);     } } 

how can fire during 404's well?

stupid mistake, , should have known... in case else runs this, , has brainfart well, global.asax not execute 404 error unless it's .net page (aspx, etc.).