Hello support team,

I've already searched the internet for help and a solution, but I couldn't find anything.

The following problem: I cannot log in after a frame forwarding (hidden forwarding), so a login looping happens in the employee area /scp (permanently "login required"). If I run the ticket system directly at the host, it works.

Facts:
Ticket system is hosted here: mswticket.sebsey.de

But the call should be made via support.mswpartners.de.
This domain is registered with United Domains. Here I set up a forwarding to http://mswticket.sebsey.de as a frame forwarding (hidden forwarding) directly in the config portal. The forwarding also works, the configuration within the ticket system (allow iFrame http://support.mswpartners.de,support.mswpartners.de,mswpartners.de,mswpartners.de is stored in this way).

An open forwarding does not bring the login loop problems!

However, I would like the domain bar to continue to show support.mswpartners.de instead of mswticket.sebsey.de.
I've tried so many things and tried to read up on the internet, but I just can't do it. I will also post various screenshots of my configuration.

If I call up the ticket system via support.mswpartners.de and log in, I then get the login loop and the following error message in the ticket system:
Invalid CSRF token CSRFToken
Invalid CSRF token [07b275c689dd21636677151ddd35d038da230b53] at https://mswticket.sebsey.de:443/scp/login.php
Log Date: Thursday, February 3, 2022 11:04 am IP Address: 46.182.146.151

I assume there is the problem. I also tried to solve it with an .htaccess, but I am not familiar with it.

And now here is my desperate request: how do I solve the problem? Which screw do I have to turn?
I would be very happy about a timely reaction! I will hand out a case of beer (via e.g. PayPal) for help and solution! Your help is very appreciated!

Best,
Sebastian

INFORMATION:
Serverinformationen
osTicket-Version osTicket PLUS v1.15.4 (6bd7884) Patch-2 — Deutsche Version — Aktuell
Server-Software Apache
MySQL-Version 5.7.33
PHP-Version 7.4.22