At least for me, whenever I have Javascript enabled for that site, it automatically loads all the pages (sometimes with a slight delay) as if the article had a

At least for me, whenever I have Javascript enabled for that site, it automatically loads all the pages (sometimes with a slight delay) as if the article had a single page. It only appears as multiple pages when I have Javascript blocked, which is usually the case (I have uBlock Origin configured to block Javascript by default).