Okay, I didn't miss anything... I uploaded using the browser, not git-hub (sorry, I'm a mercurial person and it still isn't working. I opened up the console in Chrome. Nothing happens in the console when I click edit. There are pre-existing warnings though. For extra info, I'm using Chrome 63.0.3239.132 (Official Build) (64-bit). I'm running an old OS at the moment, OS10.10.5. Here are the pre-existing warnings:
lowPriorityWarning.js:38 Warning: Accessing PropTypes via the main React package is deprecated, and will be removed in React v16.0. Use the latest available v15.* prop-types package from npm instead. For info on usage, compatibility, migration and more, see https://fb.me/prop-types-docs
printWarning @ lowPriorityWarning.js:38
Might check out OwlProgram as I generally prefer to do as much as possible off-line and try and build things cross-embedded platform (selectable using build settings). I work with the Bela team a lot and their online compiler works nicely.
Let me know if there is anything else I can do to help sort out what is going on.