I've tried including the favicon in different ways.
<link rel="icon" href="<?=base_url()?>favicon.ico">
<link href="favicon.ico" rel="shortcut icon" type="image/x-icon" />
<link rel="shortcut icon" href="/codeigniter/favicon.ico">
The favicon dosen't show up and when I inspect the page source and navigate to the favicon I get a 404. Am I missing some sort of configuration with codeigniter?