I created a Laravel Application and want to embed it into another site via iframe. Firstly you have to sign-in in my Application, but when the form gets submited I get a 419 Page expired problem.
Solution:
Yes, you can play with the config/session.php same_site value.
'same_site' = 'lax'
to
'same_site' = 'none',
Next add in your .env file
SESSION_SECURE_COOKIE=true
