First of all, I tried to connect via Socket.io, but soon realized that nothing from the outside could be loaded into my Cordova / iOS application. I checked the whitelist settings in the config.xml file. They seemed to be beautiful, but just in case I added
Unfortunately, this did not help. I tried to remove the whitelist plugin
cordova plugin add org.apache.cordova.whitelist
The plugin "cordova-plugin-whitelis" is not in the project. To see cordova plugin list.
So, I checked the list of cordova plugins and returned
cordova-plugin-console 1.0.1 "Console"
cordova-plugin-dialogs 1.1.1 "Notification"
cordova-plugin-vibration 1.2.0 "Vibration"
cordova-plugin-whitelist 1.1.0 "Whitelist"
I think the one above may be kind of standard?
My next attempt: remove the next meta tag from index.html
<meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com; style-src 'self' 'unsafe-inline'; media-src *">
But that didn't help either ...