Random Quote Machine-test failed

Hi all…
I am having trouble with the test window.
after forking the code-pen project in this link (http://codepen.io/freeCodeCamp/pen/MJjpwO)
and choosing the random quote machine from the dropdown menu and running the tests. it shows the tests for the javascript calculator project.
i have tried removing the test script from html section and putting the cdn link in javascript settings… but still the same problem.

it seems that this problem is happening only on chrome Version 71.0.3573.0 (Official Build) dev (32-bit)
…but on firefox it works fine.