I was joking in 2007, when I was working at Siemens, to my boss, that an Excel cell can contain God and the Multiverse when I put an ActiveX inside that was basically a program I made which would draw a 3D animation based on parameters contained on other cells. Let's say the boss was impressed though for me was just basic OLE.

I see from time to time that younger generations reinvent/rediscover the wheel and I chuckle.

Doesn't work in Preview unfortunately.

This is even in the ISO standard now

Which makes sense, why would browsers randomly add JS to PDF if it wasn’t already part of the standard?

why??? for what possible secure white hat reason could you want to run js in pdfs??!? is nobody sane running the pdf org?