Even Chrome has issues. I've had one answer where it said I failed so I reloaded and it said I now passed. I changed nothing. In another case the tests failed w

Even Chrome has issues. I've had one answer where it said I failed so I reloaded and it said I now passed. I changed nothing. In another case the tests failed when everything looked correct so I commented out one of the methods and then it said I passed... specifically passing the test that checked for the function that I had commented out! Seems like there is some flakiness with their system.