I successfully submit the ipa file to the App Store using Application Loader. But it shows the warning - The app references non-public selectors in Payload ...: "_setAlwaysRunsAtForegroundPriority"
Note: I'm using the ionic-v1 and phonegap build service.
Warning related - cordova-plugin-ionic-webview
Please update to the latest. https://github.com/ionic-team/cordova-plugin-ionic-webview/issues/209 the fixes are detailed in this plugins docs 'migrating to v4'