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 http://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.