I am using the default template, but I have added two simple pages. These are files, not custom code entered into the server. When I get the error, am coming from a custom webpage, called login.
I touched on this before, but to be clear, it works something like this:
When you browse to the root, you will be shown an "index.html" file. That file links to a protected page called login. The user must log in to see that page, so the page itself thanks the user for logging in, and auto-redirects on delay to /files. The user can also click a go now link.
It is at this jump from custom pages in the root to the subfolder /files, which opens the default page (file browser) that I am given a 301.
*Note: I said the server would update yesterday to version G, but something went wrong, and it didn't happen. I will need to do it manually. For now, I am still on F.*