$ionicPlatform.ready not calling in iOS while accessing remote url

.run(function ($ionicPlatform) {
     $ionicPlatform.ready(function () {
        //run once for the app
      //  PushProcessingService.initialize();
        // Hide the accessory bar by default (remove this to show the accessory bar above the keyboard
        // for form inputs)
        if (window.cordova && window.cordova.plugins.Keyboard) {
        if (window.StatusBar) {
            // org.apache.cordova.statusbar required

Android it working but in ios its not calling device ready method and that’s why no native function working for the remote pages in iOS.

Are the urls whitelisted in the app? It could be an issue of CORS