These files are served from this directory and are not part of Debt Desk's own source, so they are placed here once when the service is deployed:
desk.js, Debt Desk itselffront-door.js and door.js, the shared sign-in screendesk-store-client.js
React and the spreadsheet library load from a CDN, so if the message above
mentions one of those, this machine could not reach the internet rather than
a file being missing. The comment at the top of index.html says
how to host them here instead.