We are reserving the cordova-wkwebview-engine plugin for direct file:// url loading in iOS 9.
Create updated cordova-wkwebview-engine plugin
Support <access> and <allow-navigation> tag translation to Application Transport Security (ATS) Info.plist directives
Plugin should detect at runtime iOS 8 and use of file:// url and present an error
Support /local-filesystem/ route in local-webserver plugin
Support /assets-library/ route in local-webserver plugin