Issue is because you are using https which is not supported by our website (on which the library resides). Please access the same URL via http and it should work fine.
Also please note that I’ve updated the line containing minimum and maximum values. You need to use timestamp for minimum and maximum due to a bug which we will be fixing soon.
The chart works when I took out the minimum and maximum, but I now have a different problem that x-axis does not show any labels. I have updated jsfiddle.