Redirect to primary website??

Have InvoiceNinja running under a subdomain, connect.domain.com. However when I visit the URL and put in username and password, clicking the login button redirects me to www.domain.com/wp-admin when using firefox.

The subdomain is setup like all of my other subdomains. We have several we use for nextcloud, crm, etc. None of them do this. We are self hosted and the vhost entry is identical to others.

I can only login and get into invoiceninja is i use private when using firefox. Only then does it work correctly.

Has anyone else experienced this?

Seems like it’s a firefox issue. Cleared chrome cache and it’s not happening in chrome now.