This repro shows that the prodOnly flag is not working in packages in Meteor 1.5.
Please start this app on an Android device and have a look at the browser console via Chrome remote debugging.
The app tries to call the Meteor method called test. While this works on a desktop device, on Android it fails.
After a while, error messages about failed requests to https://localhost are being displayed. If you reload the browser with Ctrl+R, it's even more obvious. In a real app, logging into the app isn't possible anymore in this state.
If you remove the test:ssl package, the app just works fine.
The problem only occurs if meteor run android-device is called right after meteor reset. If the app is run on the device for a second time, it works.