After server move: 'logoff page isn't redirecting properly'

v1.5.5d
PHP 7.0
Theme: responsive sheffield blue
Plugins: Products with attributes 1.5.4, Google Captcha
Site: In signature
Site runs full SSL

Moved site (full cpanel account move) from one provider to another provider due to some security issues with Paypal.
The old server ran PHP 5.4.

New site works perfectly, except that after I log in, and then log out, I get a " logoff page isn't redirecting properly" error from the browser. It does actually log me out, but this error is annoying and looks unprofessional. I raised this issue in someone else's thread here https://www.zen-cart.com/showthread....properly/page3 , got a few suggestions, but unfortunately it's not fixed, so I'm hoping a few more people can offer some suggestions in a new thread, where I can present all the relevant information.

Note:

• 'fix cache key' did not work (not required for v1.5.5 anyway).
• .htaccess (root) disabled does not fix it.
• the logout page works fine when you're not logged in
• configure files have been checked - they have not changed from the other server.

Here is the (unmodified) code for the logout page:

PHP Code:

---

<?php
/**
 * logoff header_php.php 
 *
 * @package page
 * @copyright Copyright 2003-2006 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: header_php.php 5403 2006-12-27 00:38:58Z drbyte $
 */

// This should be first line of the script:
$zco_notifier->notify('NOTIFY_HEADER_START_LOGOFF');

require(DIR_WS_MODULES . zen_get_module_directory('require_languages.php'));
$breadcrumb->add(NAVBAR_TITLE);

/**
 * Check what language should be used on the logoff screen
 */
  $logoff_lang = ($_SESSION['languages_code'] != DEFAULT_LANGUAGE) ? 'language=' . $_SESSION['languages_code'] : '';

/**
  * Check if there is still a customer_id
  * If so, kill the session, and redirect back to the logoff page
  * This will cause the header logic to see that the customer_id is gone, and thus not display another logoff link
  */
if (!empty($_SESSION['customer_id']) || !empty($_SESSION['customer_guest_id'])) {
  zen_session_destroy();
  zen_redirect(zen_href_link(FILENAME_LOGOFF, $logoff_lang));
}

// This should be last line of the script:
$zco_notifier->notify('NOTIFY_HEADER_END_LOGOFF');
?>

---

Anyone please?

Is no-one able to help with this, or am I not posting the right information for anyone to help?

I haven't created a dummy account but when directly accessed I don't get an error.

Does the error occur will all browsers?
Have you tried other browsers?

Are you using a PC
Have you tried a different PC
or a mobile phone
or a tablet.

What happens on these devices?

Thank you for looking!


You're right, it does not happen when just access the logout page directly. It only happens when you create an account, log in, then log out. I've tried it on every device from different locations, it always fails.

Does it function the same if you change the template to "Classic Green"?

Thanks for the suggestion.

Unfortunately it does exactly the same.. was worth a try.

Anything you can think off to try?

Vanilla install on the new server and see what happens.

Thank you. Yes, I was trying to avoid that, as it's a lot of hassle.

Can anyone think of any PHP module, or apache settings that could possible relate to this issue?

That's really the only thing that has changed when my site was moved over, because it was a full cpanel account move, so nothing changed.

There's really little to be done to perform the setup suggested with the "hardest" part being to upload a new fileset.
Create a sub-directory off your current store.
Upload the new fileset.
Using the existing database zc_install entering a database prefix (DB_PREFIX) that is different than your existing store configuration. Install with the demo product.
Rename/remove the zc_install directory.
Login to the new store.
Perform whatever is needed to reproduce the issue.
Logout of the new store and see if the result is the same or different...
Done.

There's just so many differences that could exist, between the expectation that all files were transferred unchanged, the configuration of the existing new server, software that has been installed, software that may have been modified to work on the previous server, etc...