Your site URL to be authorized: file:///private/var/mobile/Containers/Bundle/Application/C6B8565C-4A69-4F9D-AFEC-CED61BD6CD54/HelloWorld.app/www/index.html
I’ve tried to register this url (file:///private/var/mobile/Containers/Bundle/Application/*) in the Google Console but it doesn’t work…
Is it intentional that you are using the premium Google Maps for Work? Seems licencing for this is only available on domain basis with http or https, and inside a Cordova app there really is no domain and files are served directly from memory.