gitlab-org--gitlab-foss/changelogs/unreleased/35476-lazy-image-intersectionobserver.yml

---
title: Improve lazy image loading performance by using IntersectionObserver where
  available
merge_request: 21565
author:
type: performance
Improve performance of LazyLoader by using IntersectionObserver Every browser which supports IntersectionObserver will now use it over observing scroll and resize events. Older browsers without support fall back on the previous behavior. Additionally the MutationObserver can be enabled and disabled manually via the helper method `startContentObserver` and `stopContentObserver`. This might prove useful on pages where we manipulate the DOM extensively. 2018-09-06 10:36:05 -04:00			`---`
			`title: Improve lazy image loading performance by using IntersectionObserver where`
			`available`
			`merge_request: 21565`
			`author:`
			`type: performance`