Custom URI Scheme inside an InApp Browser is not working

ionic-v1
1

Hi All,

I am building an Ionic App where a Login Page will open an InAppBrowser for Log in and after that a CUSTOM URI Scheme will trigger( inside the Inappbrowser) and open the app.

I added the following plugin:

cordova plugin add https://github.com/EddyVerbruggen/LaunchMyApp-PhoneGap-Plugin.git --variable URL_SCHEME=testapp

But, when the inappbrowser opened, i got an error

**The webpage at testapp:// could not be loaded because: net::ERR_UNKNOWN_URL_SCHEME**

How to solve this.
Below is the code.

**index.html**
 <ion-content ng-controller="ExampleController" padding="true">
     <button class="button button-full button-assertive" ng-click="openInExternalBrowser()">
        Open In External Browser
    </button>
    <button class="button button-full button-assertive" ng-click="openInAppBrowser()">
        Open In App Browser
    </button>
     <button class="button button-full button-assertive" ng-click="openCordovaWebView()">
        Open In Cordova Webview
    </button>
  </ion-content>

Now the Controller Part

**app.js**
function handleOpenURL(url) {
setTimeout( function() {
    var event = new CustomEvent('LaunchUrl', {detail: {'url': url}});
    window.dispatchEvent(event);
}, 0);
}

angular.module('starter', ['ionic'])

.run(function($ionicPlatform) {
 $ionicPlatform.ready(function() {
if(window.cordova && window.cordova.plugins.Keyboard) {
  // Hide the accessory bar by default (remove this to show the accessory bar above the keyboard
  // for form inputs)
  cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);

  // Don't remove this line unless you know what you are doing. It stops the viewport
  // from snapping when text inputs are focused. Ionic handles this internally for
  // a much nicer keyboard experience.
  cordova.plugins.Keyboard.disableScroll(true);
}
if(window.StatusBar) {
  StatusBar.styleDefault();
}
  });
})

.controller("ExampleController", function ($scope) {

 $scope.openInExternalBrowser = function()
{
// Open in external browser
 window.open('http://google.com','_system','location=yes'); 
};

$scope.openInAppBrowser = function()
{
// Open in app browser
window.open('testapp://','_blank'); 
};

$scope.openCordovaWebView = function()
{
 // Open cordova webview if the url is in the whitelist otherwise opens in app  browser
 window.open('testapp://','_self'); 
};

});