codepen css and js code not accessible from broswer or external url

Question

I created a pen in codepen.io a few years back and I used to be able to access the raw js and css file from browser by adding the file extension on top of the url of the pen. I found these files are not accessible anymore. May I know is it some usage change recently in codepen.io?

my pen:  [https://codepen.io/zh1611/pen/bjaEKJ][1]
[https://codepen.io/zh1611/pen/bjaEKJ.css][2] - return empty page with Pen Not Found
[https://codepen.io/zh1611/pen/bjaEKJ.js][3] - return empty page Pen Not Found

Answer 1

I asked this question to CodePen support. And they replied:

Access to the raw HTML, CSS, or JS file from a Pen is a perk of a CodePen PRO subscription.

Raw files on free accounts can only be referenced by other Pens.