AJAX - CDNJS - "The results could not be loaded."

Try as I might… I can’t figure out why this code is not working:
(I’ve included the AJAX URL and Results in the JS as a comment)

This is based on the AJAX example code here:

Can anyone tell me what I’m doing wrong… or how to go about debugging this issue?

!!! SOLVED !!!

After MANY more hours of trial & error (and error)… I’ve been able to figure out how to properly transform the JSON results into the required Select2 data format!

I’ve updated the code linked above, and added comments to show how I was able to resolve this issue.

Now, on to the next problem… figuring out how to get this list of “files” to be selectable in another Select2 dropdown.