Ok, works after deleting cache manually. Can be closed.

https://webtrading.onvista-bank.de/login is supposed to open a login form with mouse keyboard. This suddenly stopped working with 45.0 and 46.0. Since it stopped working suddenly, of course there might have been a change on the site, but fact is, it still works with any other browser and even with old portable versions of Opera, so I don't think they just blocked opera for some reason. Tried all steps in "How to post", use Win10.
For first, can somebody confirm the issue?