InAppbrowser 1.7.1 only works on initial load

I am creating the e-commerce application using the Ionic framework. For payment integration using inappbrowser.It works at the first time when doing payment it opens the URL in the browser but when doing it again without closing the application it doesn’t open the browser. And I have installed the plugin for inappbrowser and whitelist. This is the code which I have used for the opening the inappbrowser:
window.open(‘Url’, ‘_blank’, ‘location=no’, ‘toolbar:no’);