iCloud Drive web page keeps forever loading and freezes tab
I am trying to access iCloud Drive from my pc and it absolutely refuses to load. I tried on both Chrome and Microsoft Edge, both up to date, neither work. I can log into the main page, I can access my Photos, I can access my Notes, I can access everything else, but as soon as I try to access Drive it goes wrong. The page comes up with a partial list of folders at the left but it eternally loads, and then I get a browser message that the page is no longer responding and if I want to try to wait or leave. If I try to go back by pressing the back button, nothing comes up and I have to close the whole tab and open a new one before I can access even the main iCloud page again.
I just want to transfer one single file, is that too much to ask of Apple's systems?
Windows, Windows 6