A Mac user here with Office 365 and the latest Chrome.
Downloaded the jump plot. Didn't change any data, just clicked the 'Generate' button and opened the html file. I expected to see the graph but got an empty page. Turns out there were some errors in the generated data:
var hops_data = { "hops":[ {"source": 0, "target": 1, "value": 16,6363636363636,
Changing the value to "value": 16.6363636363636 fixes the problem.