diff --git a/app/Helpers/Misc.php b/app/Helpers/Misc.php
index a223fcc..2619287 100644
--- a/app/Helpers/Misc.php
+++ b/app/Helpers/Misc.php
@@ -2,6 +2,10 @@
 namespace App\Helpers;
 
 class Misc {
+    static private function isSecure() {
+        return (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || $_SERVER['SERVER_PORT'] == 443;
+    }
+
     static public function getCursor(): int {
         return isset($_GET['cursor']) && is_numeric($_GET['cursor']) ? (int) $_GET['cursor'] : 0;
     }
@@ -11,7 +15,7 @@ class Misc {
     }
 
     static public function url(string $endpoint = ''): string {
-        $protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http";
+        $protocol = self::isSecure() ? 'https' : 'http';
         $root = $protocol . '://' . $_SERVER['HTTP_HOST'];
         return $root . self::env('APP_PATH', '') . $endpoint;
     }