amongouser

issue in mocha: https://github.com/mochajs/mocha/issues/3050

> Goodbye CoffeeScript, hello JavaScript! > JavaScript is the future, in part thanks to CoffeeScript. Now that it has served its purpose, it's time to move on. Convert your CoffeeScript...

@emirotin yarn and the new npm@5 solve this using lock files. I'd close this issue.