UNIT3D-Community-Edition/app/Http/Middleware/TrustHosts.php

<?php
/**
 * NOTICE OF LICENSE.
 *
 * UNIT3D Community Edition is open-sourced software licensed under the GNU Affero General Public License v3.0
 * The details is bundled with this project in the file LICENSE.txt.
 *
 * @project    UNIT3D Community Edition
 *
 * @author     HDVinnie <hdinnovations@protonmail.com>
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html/ GNU Affero General Public License v3.0
 */

namespace App\Http\Middleware;

use Illuminate\Http\Middleware\TrustHosts as Middleware;

class TrustHosts extends Middleware
{
    /**
     * Get the host patterns that should be trusted.
     */
    public function hosts(): array
    {
        return [
            $this->allSubdomainsOfApplicationUrl(),
        ];
    }
}