Excpetion "EXCEPTION: Error: Uncaught (in promise): Failed to load file" is shown into iOS Console

Issue

• App reports "Failed to load file" in the device log
• Hybrid app works fine on Android but hangs on iOS
• Excpetion "EXCEPTION: Error: Uncaught (in promise): Failed to load file" is shown into iOS Console.

Following an example of this log.

EXCEPTION: Error: Uncaught (in promise): Failed to load file:///var/containers/Bundle/Application/5D7E8623-F13A-437D-9F5DFA4E0B79C711/test.app/www/app/+home/test.component.css