How to fix 'Facebook has detected MyApp isn't using a secure connection to transfer information.' error in Laravel
You can do "Create Test App" and replace your App ID and Secret using the test app.
The simple answer is - Facebook will send sensitive data to provided redirect_uri, so it is ensuring this connection is private, by forcing you to use valid SSL.
As long as you do not setup a valid domain with proper certificate, Facebook won't let you use production API.
It's looks like time expirataion. I've just recreate facebook app and it works without that error.