Using App Connect S3 Upload

Using the App Connect S3 Upload, does anyone know if it’s possible to get the URL after the select() method is called (from Browse button) for the purpose of a file preview prior to Upload? (I’m able to get the name via “file.name” but can’t find a way to get the path for a preview)

This tutorial could be greatly improved by showing how to incorporate the S3 Upload into an existing form. No professional web site would just have this component on a page all by itself. The use case would want to capture additional information from the user using a form and submit it along with the signed file URL location.