backend default {

	.host = "origin.mysite.com";
	.port = "80";
}

sub vcl_recv {

        if( req.request != "GET" && req.request != "HEAD"  )
        {
                pass;
        }
        else if( req.url ~ "(\.aspx|\/[^\.]*)$" &&  req.http.Cookie &&  req.http.Cookie ~ "ASP\.NET_SessionId" )
        {
                pass;
        }
        else
        {
                lookup;
        }

}

sub vcl_hash {
	if ( 
		req.url ~ "(\.aspx|\/)$" 
		&& req.http.cookie 
		&& req.http.cookie ~ "ASP\.NET_SessionId"
	) 
	{ 
		set req.hash += "auth"; 
	}
    	set req.hash += req.url;

 	hash;
}


sub vcl_fetch {
   
	if( req.request == "POST" )
	{
		# NOTHING
	}
	else
	{
        	unset obj.http.set-cookie;
	}

	if (obj.ttl < 120s )
	{
	        set obj.ttl = 55s;
	}
	set obj.prefetch =  -30s;
	deliver;
}