Hi Wolfgang,
>> 1) Webserver > Settings > General / CSL has to hold something, at least an empty string '' - is that correct?
no, not correct.
>> I fumble with an insecure server on my development machine, of course, so only port 80 is to be set.
if you only want insecure on port 80, then set the insecure port to 80, and the secure port to 0.
>> 2) I have set Insecure Port to 80, then compiled, but neither localhost nor
http://localhost nor
http://localhost:80 returns my index.htm. However, 127.0.0.1 does.
>> with FireFox. This FF insists on opening
https://localhost/.
Your browser is remembering a permanent-redirect on that address. You can clear it out by clearing your browser history.
If you set up a secure site on an address, then the browser will try and change your URL to the secure address, even if you put in the insecure address. (Because the server, in the past, told it to.)
Cheers
Bruce