No connection with iOS App

Sorry once more for the delay.

I tested many configurations and the result is that SSL works fine, but authentication is the problem.
(Authentication is done by a reverse proxy making use of basic authentication.)

  • If access is granted at all: works
  • If access is granted some users only (basic authentication) and username/password not correct: red popup with an appropriate access denied massage: works
  • If access is granted to some users only with username and password correct: the problem “Connection” popup, nothing more
    • The proxy log shows requests to /rest/sitemaps with authentication that were responded successfully.
    • But there are also requests to /rest/bindings without authentication (or a wrong one). These requests were of course denied. (403)
  • If access is granted some users only but anybody (= no restriction) to /rest/sitemaps: works

In summary the app sends requests without (or wrong) authentication for some ressources. These requests are denied and the app is not usable.