Ionic Cordova WebView with cordova-admob-pro

I try cordova-admob-pro in my app its working fine ads working all html page. but in my cordova webview ads not show why?

.controller(‘register’, function($scope, $cordovaAdMobPro) {
$scope.openCordovaWebView = function()
{
window.open(‘http://www.google.com’,’_self’,‘location=no’);
};

})

I used this code for webview. in this page i need show ads at bottom. i added admob bro code in my app.js … ads working all other html file