Codeigniter echoing [::1] instead of localhost

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I am using CodeIgniter 3 as a web platform and trying to import semantic-UI CSS into my page. I'm doing so by using CodeIgniter's base_url() method in the href property for the CSS import.

However, semantic.css itself imports some other fonts on my server, which cannot load because of Cross-Origin resource sharing policy. This is the error message chrome gives me:

Font from origin 'http://[::1]' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access.

This is because base_url() echoes the domain has been [::1] and not localhost as I've typed into the browser.

For some reason, it appears to me that chrome (and also Edge) does not consider [::1] and localhost as the same host, or maybe I'm just being dumb. What I know though is that if I change the path of the main semantic.css file and complex code localhost into it, it works, and it also works if, instead of requesting my page using localhost, I use [::1]

I've done other projects very similar to this and never had this "[::1]" appear. What exactly is causing PHP to echo such a path?

codeigniter-4 codeigniter-3 codeigniter-2 codeigniter php
5 Answers

This is what you need to alter in config/config.php, it works properly in "localhost" as well as in your "server":

$config['base_url'] = "http://".$_SERVER['SERVER_NAME'];

$config['base_url'] .= str_replace(basename($_SERVER['SCRIPT_NAME']),"",$_SERVER['SCRIPT_NAME']);

if(!defined('DOCUMENT_ROOT')) define('DOCUMENT_ROOT',str_replace('application/config','',substr(__FILE__, 0, strrpos(__FILE__, '/'))));

$config['base_path'] = constant("DOCUMENT_ROOT");

$config['js_url'] = $config['base_url'].'js/';

$config['css_url'] = $config['base_url'].'css/';

$config['image_url'] = $config['base_url'].'img/';

// Host resolution for cross origin requests

if(ENVIRONMENT == 'production') {
    $config['host'] = 'www.<domain_name>.com';
} else {

$config['host'] = 'localhost';

}
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