diff --git a/pub/errors/processor.php b/pub/errors/processor.php
index 7240707f642c2..2bb25f3fd587d 100644
--- a/pub/errors/processor.php
+++ b/pub/errors/processor.php
@@ -265,7 +265,8 @@ public function getHostUrl()
             $host = 'localhost';
         }
 
-        $isSecure = (!empty($_SERVER['HTTPS'])) && ($_SERVER['HTTPS'] != 'off');
+        $isSecure = (!empty($_SERVER['HTTPS'])) && ($_SERVER['HTTPS'] !== 'off')
+            || isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && ($_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https');
         $url = ($isSecure ? 'https://' : 'http://') . $host;
 
         if (!empty($_SERVER['SERVER_PORT']) && !in_array($_SERVER['SERVER_PORT'], [80, 443])