Issue loading plugin?

[mn113]

This plugin doesn't seem to operate or load as expected for me in the latest Chrome (v62). In a new Incognito window I go to https://leaverou.github.io/multirange/ and see this in the console:

Uncaught TypeError: Cannot read property 'bind' of null
    at self.multirange (multirange.js:60)
    at Array.forEach (<anonymous>)
    at HTMLDocument.multirange.init (multirange.js:74)

I get the error in Safari too at this URL. Same error when I include the script on a page of my own.