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lepu-test-platform-web/node_modules/caniuse-db/features-json/intersectionobserver.json

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{
"title":"IntersectionObserver",
"description":"API that can be used to understand the visibility and position of DOM elements relative to a containing element or to the top-level viewport. The position is delivered asynchronously and is useful for understanding the visibility of elements and implementing pre-loading and deferred loading of DOM content.",
"spec":"https://www.w3.org/TR/intersection-observer/",
"status":"wd",
"links":[
{
"url":"https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API",
"title":"MDN Web Docs - Intersection Observer"
},
{
"url":"https://github.com/w3c/IntersectionObserver/tree/master/polyfill",
"title":"Polyfill"
},
{
"url":"https://developers.google.com/web/updates/2016/04/intersectionobserver",
"title":"Google Developers article"
}
],
"bugs":[
{
"description":"[Chromium](https://bugs.chromium.org/p/chromium/issues/detail?id=833725): In a background tab, IntersectionObserver does not trigger its callback."
}
],
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"JS API"
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"notes":"",
"notes_by_num":{
"1":"Enabled in Firefox by setting the `about:config` preference `dom.IntersectionObserver.enabled` to true",
"2":"\"Preliminary\" support as feature is still in development",
"3":"`isIntersecting` property of `IntersectionObserverEntry` was not implemented, returning `undefined`",
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},
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"shown":true
}
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