This is what I’m talking about.
After migrating from Meteor 1.2 to 1.3 my Facebook login got broken. It works on browser, but not on Android or iOS devices. Both mobile platforms result similar error, so migration probably causes a need to change configuration in Facebook’s end.
Meteor 1.3 migration guide tells me the following:
The plugin used to serve your app’s files and support hot code push has been completely rewritten. As a result, files are now served from localhost instead of meteor.local, with a fixed port number derived from your appId. You may have to update OAuth redirect URLs to point to the new local domain and port.
I used to have localhost:3000 in valid OAuth redirect URIs. What exaclty should there be nowadays?