Hi Christian

Il giorno mar 14 dic 2021 alle ore 21:37 Christian Boltz <opensuse@cboltz.de> ha scritto:
Hello,

In your first mail, you wrote that you get a (cached) HTTP 301 redirect.

HTTP redirects happen at the HTTP level, so your DNS server is innocent.

Yes, that's what I suspected, too.
 
I'd guess your firefox has the redirect in its content cache - after
all, a 301 means "Moved Permanently".
Try to delete the website content cache.

Thank you Christian, this finally worked!!
I did not think Firefox would cache even redirects! Technically, it is not part of the site content, it is governed by the .htaccess file which is part of the http server configuration.
And frankly this type of caching seems quite aggressive to me. It could very well bite casual users, too.
BTW, I learned something new today, and finally fixed the behavior of my Firefox (and I'm sure I'll be able to fix Falkon in much the same way).

For those following this thread, you may be interested in knowing how I cleared the contents cache in Firefox.
Here is the page with instructions. It also instructs you on how to clear the cache automatically every time Firefox closes.
Hope this helps.

Bye
Cris