Thanks for giving the SP Community such a great script to use. It really fills a need with the Cascading Dropdowns and adds more usability to the platform. You suggested I leave a note on here, so the one thing that I think could possibly be done with jQuery
scripts is an enhanced Drag and Drop. Right now, when you drop a file in SP Online, you do not get prompted for MetaData. This is a pain point for the user.
Just a suggestion. Keep up the great work!