Viewing files through the site currently results in "Failed to load : Forbidden" error.
This is an issue regarding the CORS Anywhere API in use, which throws an error request reading "See /corsdemo for more info." This points to this issue (https://github.com/Rob--W/cors-anywhere/issues/301), saying that the API will be completely restricted from public use after February 1st, which was Monday. That issue currently recommends self-hosting CORS Anywhere if used frequently.