Why window.scrollTo Fails on Modern Web Pages and What to Do Instead
A developer has published the final installment of a five-part series examining the challenges of auto-scrolling pages for recording purposes. The piece explains that production websites often use scroll-snap, smooth-scroll libraries, inner overflow containers, or WebGL canvas scenes that bypass the standard window.scrollY entirely. Because of this, common stop conditions based on scrollHeight minus innerHeight can fire too early or not at all, requiring heuristic detection of which element actually owns the scroll. The author details separate scroll-driving strategies for snap-based layouts versus linear ones, noting that mixing the two approaches causes erratic jumping behavior. Additional edge cases covered include lazy-loading content that extends page height after scrolling appears complete and banners that shrink the document mid-capture.
This is an AI-generated summary. ShortSingh links to the original source for the complete article.



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