Button click working in JSFiddle but not chrome (Random Quote Generator)

1

I am still very new at this,

I do not understand why the same code will execute in one system and not another

My code (in Github) will not generate the random quote in the Chrome browser (Google Chrome 60.0.3112.90 (Official Build) (64-bit) (cohort: Stable)) I am using, but if I enter the code into JSFiddle It works as designed.

Can someone tell me why that might be happening

3

Thanks @rmdawson71. Works like a charm now.