You were on drive.google.com but any files you wanted to download were on googleusercontent.com which needed auth cookies. So downloads didn't work, and neither

You were on drive.google.com but any files you wanted to download were on googleusercontent.com which needed auth cookies. So downloads didn't work, and neither did playing videos. You could dodge around that with 'open in new window' but it was a pain in the ass. I think they've fixed it recently.