How to avoid downloading js files and authentication ember SPA

We have an ember single page application. On a specific page, while clicking on a hyperlink, I want to open a specific route in the new window.

The problem here is, it starts downloading all the js files (main.js) and authenticating the session and then only it is loading the route. This is taking too much time and giving a poor user experience. Since the hyperlink can be clicked only when the user is already logged in, is there a way to avoid downloading all the js files and authentication in ember? Something like a child window of the current window, so that the route will be loaded immediately.