НЕ...
Это сервер отдает
потому
<file path="catalog/controller/startup/session.php">
<operation>
<search><![CDATA[setcookie($this->config->get('session_name')]]></search>
<add position="before"><![CDATA[
$this->response->addHeader('Expires: Thu, 19 Nov 1981 08:52:00 GMT');
$this->response->addHeader('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0');
$this->response->addHeader('Pragma: no-cache');
]]></add>
</operation>
</file>
<file path="admin/controller/startup/startup.php">
<operation>
<search><![CDATA[index(]]></search>
<add position="after"><![CDATA[
$this->response->addHeader('Expires: Thu, 19 Nov 1981 08:52:00 GMT');
$this->response->addHeader('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0');
$this->response->addHeader('Pragma: no-cache');
]]></add>
</operation>
</file>