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See https://github.com/WICG/scroll-to-text-fragment/issues/79
Even without Text Fragments, IntersectionObserver (and therefore also lazy-loading images) leaks scrolling position in the parent to cr…
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vue-cli 无法加载
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1. visibilitychange事件：监听标签页隐藏状态，用于在标签页隐藏时需要结束某些行为的场景，例如轮询，音视频播放等。
2. intersection observer api: 判断target元素是否处于视窗viewport，其他元素（其中viewport、其他元素叫做root元素，root 元素默认或null代表viewport）的交集等，用于实现懒加载，无限滚动等。int…
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### Describe the bug
(Blocking for 5.3.0, using 5.1.0 for now)
Upgrading project from 5.1.0 to 5.3.0 makes the whole UI frozen. However, the API still works.
### Have you searched existing issu…
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In whatwg/html#5510 I'm trying to specify `` in terms of IntersectionObserver as per discussion in whatwg/html#5236
The desired behavior for lazy-loading is to dynamically change the `rootMargin` i…
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Only really available on larger viewports where the contents are always visible (though can it be used to scroll the contents to the right position when opened via the menu button on smaller viewports…
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Unlink component from React render cycle if a component is not intersection (out of visible area). A lot of time components get rerendered due to some data change (props, context or global store). Whi…
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# Motivation
Since Embroider has a macro system for things like package versions and config, I'm wondering if we should add macros for including/excluding platform API polyfills. It is not uncommon…
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Should be like in MutationObserver https://api.dartlang.org/stable/1.24.2/dart-html/MutationObserver/MutationObserver.html. This is crucial because callback is the only way to get notifications, and i…