Hello. I've just registered an user in phpBB, and ok all works fine.
Except if i login in phpBB, iframed, then loop start.
This because i see that last fix i added to avoid this problem, seem to still not work for some reason.
If i stop browser reload, after phpBB login in iframe, then i go to wp side, i result logged in in wp, then if i return in phBB all works fine. No reload.
THEN, the problem is that when page reload, after a login in phpBB via iframe, still the user is NOT logged for some reason in WP. SOmething in the flow goes wrong.
Try to login WP, and go to iframe, the reload do not happen. Try to login in phpBB, then navigate to wp and return into
https://kitesurfpro.nl/kiteforum/ , the reload do not happen.
Seem you done all right, let me check the problem i will return here asap. This do not happen here in this example, very strange