Opening App�
// After building $token/$email/$display_name:
$qs = http_build_query(array_filter([
'token' => $token,
'email' => $email,
'display_name' => $display_name,
]));
$trampoline = 'https://etilink.store/open-app/' . ($qs ? ('?' . $qs) : '');
if (function_exists('ob_get_length') && ob_get_length()) { @ob_end_clean(); }
header('Location: '.$trampoline, true, 302);
exit;
