I tried including the original file at its CDN location and I am still getting the same error. I had only added a console.log in the original file anyways.
The same error occurs on both IE and Chrome (in case this helps troubleshooting), only that in IE it shows the Design Studio specific error box in the bottom right corner:
Error message: 'vis' is undefined Line Number: 158 Pos: 4
Please contact your application designer
In Chrome, this information is only seen in the console.
Thank you!