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/sitemapswith authentication that were responded successfully. - But there are also requests to
/rest/bindingswithout authentication (or a wrong one). These requests were of course denied. (403)
- The proxy log shows requests to
- 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.