I see a RuntimeError. Does it still work ?

The heroku app I used to make this notebook ( https://asg017-cors.herokuapp.com ) is dead because heroku removed their free tier. The approach overall still works however: if you create your own CORS anywhere server with the "deploy to heroku" button above, you'll be able to use that in your work.

Thanks for your answer. I understand that I should use an alternative to heroku if I want a free service.