Preview CRM using "iframe"

[McBrumm]

I have 2 different CRMs in 2 different directories on my homepage. I include both in a preview using “iframe”. The old version (version 5.9.4) is displayed while the new one (version 8.1.5) is not displayed in the "iframe". Does anyone have an idea how I can solve this?
thank you very much
kind regards
McBrumm

[yuri]

https://docs.espocrm.com/administration/config-params/#security

Add clientXFrameOptionsHeaderDisabled parameter to config.php.

[McBrumm]

thank you very much, it works :-)

[Dawg]

https://docs.espocrm.com/administrat...rams/#security

Add clientXFrameOptionsHeaderDisabled parameter to config.php.

Hello,

I've added the parameter to config.php but the page comes now as blank. No error in the log. Is there a special way how to write it in the config? Sorry for a rookie question, I'm new to Espo

[xiv]

<?php
return [
'clientXFrameOptionsHeaderDisabled' => true,

.....