So I have two .htm files created by rhubarb uploaded into a taskchain. I have tried two variations. One is with aliases (how I hope to always work to permit easy backup and restore of the course) and the other not without aliases. I have tried the chain in both Firefox and Chrome. All I get is a big white screen. Internet Explorer indicates a 500 server error. The htm files work fine when loaded directly from the hard drive.
Working with Moodle 2.7.