Please disable the secure connection (the lock next to the url), because this react page contains mixed content, and gh-page with github domain only allows using https protocol. So in order to fetch the data from the movie datebase. You would need to disable the secure connection for this page.
Ref: mix-content issue
This project was bootstrapped with Create React App.
In the project directory, you can run:
Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.