I have implemented facebook oauth login for my meteor web app. Immediately after a deployment to Galaxy, facebook logins work as expected. However, after only a day, the login fails with the error message:
URL Blocked: This redirect failed because the redirect URI is not whitelisted in the app’s Client OAuth Settings. Make sure Client and Web OAuth Login are on and add all your app domains as Valid OAuth Redirect URIs.
If I then do a redeployment, facebook logins start working again. This problem has me stumped. Does anyone have any idea what the problem might be?