Creating Radar Chart from form submission

I’m developing an assessment app and want to display a radar chart based on the ratings of various skills a user enters. I have tried using Zapier in a couple of ways:

  1. Creating a rich text field that adds Javascript for chart.js code. But it sees to strip the javascript from the record.
  2. inserting a URL into a field that uses the Mychart Zapier connection. This almost works, but the user has to click an ugly URL and the resulting chart is png, not embedded in the app.

It seems like there is a straightforward way using Javascript code and displaying in the app, but don’t have the coding skills. Any thoughts on how to do this are appreciated.