Load the actual testcase. If it doesn't actually appear until after it's fully loaded, you may have to force-reload it.

Perl source of the testcase:

#!/usr/bin/perl
use CGI;
$| = 1;
$q = new CGI;

$time =  $q->param('time');
if (!$time) {
  $time = 60;
}

print STDOUT "Content-Type: text/html\n";
print STDOUT "\n";
print STDOUT "<html><body>\n";
print STDOUT "<a href='javascript: void(\"PASS\")'>You have " . $time . " seconds to click this link.  After you do, you should see more text.</a>";

sleep($time);

print STDOUT "<br>You should see this text</body></html>";