Why does my JavaScript site look fine to users but not to AI crawlers?

https://wiki-nest.win/index.php/Why_Does_My_JavaScript_Site_Look_Fine_to_Users_But_Not_to_AI_Crawlers%3F

In 2024, I spent my morning reviewing a folder named 04-12-24, filled with screenshots where LLMs confidently stated our client did not offer shipping to California when their checkout page explicitly mentioned it