If you are unable to log into the app on iOS, and encountering an error message that states as below in NGINX and Nextcloud.
“No ‘Authorization: Basic’ header found. Either the client didn’t send one, or the server is misconfigured. No ‘Authorization: Bearer’ header found. Either the client didn’t send one, or the server is misconfigured.”
This issue seems to be related to your setup, which includes a reverse proxy.
Add
proxy_hide_header Upgrade;
proxy_set_header Cookie $http_cookie;
to your .conf
and restart the nginx.