I'm seeing the same thing with the CDN... But, it's not locally on the server. SFTP'd into the server and the file isn't there. I've also used the web-ui file browser (making sure to toggle 'show hidden files') and it's not there. I've run a search using SFTP w/FileZilla, and the file isn't found anywhere on the home directory.
It's weird, because sometimes I can view it, and sometimes it does what I expect and shows me a 404 error.