doc(api): IntersectionObserver rootMargin option value

[ShubhamOulkar]

closes #40515

[github-actions]

Preview URLs

• /en-US/docs/Web/API/IntersectionObserver/IntersectionObserver
• /en-US/docs/Web/API/IntersectionObserver/rootMargin
• /en-US/docs/Web/API/IntersectionObserver
• /en-US/docs/Web/API/Intersection_Observer_API

(comment last updated: 2025-07-29 05:42:39)

[Josh-Cena]

This should be mentioned in https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API#the_intersection_root_and_root_margin and https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserver/IntersectionObserver instead, because the property merely reflects the input value.

[ShubhamOulkar]

This should be mentioned in https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API#the_intersection_root_and_root_margin and https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserver/IntersectionObserver instead, because the property merely reflects the input value.

@Josh-Cena thank you for pointing out, I changed instance property page. Actually, the page I visited was this. Issue is updated.

I will do necessary changes on following sections :

https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API#the_intersection_root_and_root_margin

https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserver/IntersectionObserver#rootmargin

[Josh-Cena]

Nice, thank you! Apparently this is a spec bug: w3c/IntersectionObserver#308