CORS problem, yahoo finance API

Hi guys,

I'm about to test the yahoo Finance API at home! (Yes I do this at home!)
I copied that script from rapidAPI and added cors-anywhere- proxy. However this does not work.
The yahoo expert said, quote: "I suggest that you wrap it in your own endpoint and call the endpoint later." What's the endpoint?

Thanks a million!

<script>
  const data = null;

  const xhr = new XMLHttpRequest();
  xhr.withCredentials = true;

  xhr.addEventListener("readystatechange", function...

Code (JavaScript):

CORS problem, yahoo finance API

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