@khunrobot If your remote API calls are not working, you need to make sure your server implements CORS. If local XHR calls are not working, try using cordova-plugin-wkwebview-file-xhr instead of cordova-plugin-wkwebview-engine. If you get the UIWebView deprecated notice from Apple, search for the string “UIWebView” in your plugins. If a plugin is still using UIWebView then you need to use the latest version of the plugin if the maintainer has removed UIWebView code, or disable the plugin. (Note occurences of the string UIWebView in cordova-plugin-wkwebview-engine are fine - you can and should keep that plugin enabled.)