Cordova-plugin-ionic-webview with UseScheme set to true

Hi,

I’ve upgraded cordova-plugin-ionic-webview to v2.3.1 as recommended in the security alert: https://ionic.zendesk.com/hc/en-us/articles/360015176994-2019-01-03-Security-Alert-for-cordova-plugin-ionic-webview

When i set in my config.xml (ionic-v1), I can’t serve any pictures from the new protocol ionic://app.
I Know it’s probably related to the Content-Security-Policy and the allow-navigation parameters but i’ve tried everything and img keeps getting blocked under IOS 11.
Does anyone is able to serve images with this setup ?