$this->redirect(offsite url); not going to url

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Hey all, searching for the last half hour has provided me with nothing, and the IRC channel hasn't been able to answer this either.

I'm working on a site with a few pages that aren't complete yet, but they have old versions of the store hosted by a shopify type site. I want to redirect users to that url when they go to the page, however instead of redirecting to "https://www.google.com" the redirect is going towww.www.myconcretesite.com/index.php/https://www.google.com....

How can I correctly redirect to the URL of the store instead of it thinking I'm trying to access a sub page?

My Controller

<?php
class StoreController extends Controller {
   public function view(){
      $this->redirect("https://www.google.com");
   }
}