There is probably some dependency on your application that is not loading and thus generating an error and stopping the app from loading properly.
If your application performs ajax requests, it is possible that it is capturing a 404 response when it attempts to execute such requests. This problem is solved by installing cordova-whitelist-plugin .
I recommend that you list the plugins of the Cordova installed in your application by typing in the terminal: cordova plugin list
or ionic plugin list
. Most of the cordova plugins should be registered in the app.js to be able to be loaded by ionic.
Finally, there is the option to simulate your app on an android or iOS device and use a watch to check the error log.
If your device is android just plug an android device into USB and run the command monitor
which is inside the Android SDK .
If your device is iOS, just use the xCode .