Jack Sleight on Mythryl: “Ever struggled to debug an intersection observer's root margin? I…”

Ever struggled to debug an intersection observer's root margin? I know I have! So I wrote a little helper that plonks a big red box over the observer's intersection area: gist.github.com/jacksleight/...

gist.github.comdebug-root-margin.jsGitHub Gist: instantly share code, notes, and snippets.

11/11/25, 6:00 pm1 repost1 like

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