Running into a problem where I am encountering the error message produced from the first few lines of the Controller::redirect() method - and wondering if someone could explain the rationale behind this logic?

if($this->response->getHeader('Location')) {
user_error("Already directed to " . $this->response->getHeader('Location') . "; now trying to direct to $url", E_USER_WARNING);
return;
}

Just curious, as I'm finding it difficult to come up with a work around given these lines.

Thanks

UPDATE: Never mnd - this doesn't effect live deployment as it's only a warning, so commenting it from my local development machine...

So how would you approach only redirecting the user to the first appearing Director::redirect?

I'm getting the 'Already redirected' warning, and have no clue of how to get around it (I'm building a 'maintenance offline' settings script):

         $bolMaintenanceRedirect = true;
         if (Member::currentUser()) {
            if(Member::currentUser()->isAdmin()) {
            $bolMaintenanceRedirect = false;
            }
         }
         if ($bolMaintenanceRedirect){
            if (Director::urlParam("Controller") != 'Security') {
               if (Director::urlParam("Action") != 'login') {
                  Director::redirect('downformaintenance.html');            
               }
            }
         }   

I was looking for a way to overrule any other redirects that would have been set before. I thought maybe there would be a method for that?
I ended up by fixing this by setting some preferences, and a couple of if statements.

Thanks for the fast reply!