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Load extra polyfills when isIntersecting is undefined (#4469)

pull/4472/head
Yamagishi Kazutoshi 2017-08-01 02:40:20 +09:00 committed by Eugen Rochko
parent 9b247c3d88
commit b9ec3b7e7c
1 changed files with 2 additions and 0 deletions
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app/javascript/mastodon/load_polyfills.js
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@ -24,6 +24,8 @@ function loadPolyfills() {
// This avoids shipping them all the polyfills. // This avoids shipping them all the polyfills.
const needsExtraPolyfills = !( const needsExtraPolyfills = !(
window.IntersectionObserver && window.IntersectionObserver &&
window.IntersectionObserverEntry &&
'isIntersecting' in IntersectionObserverEntry.prototype &&
window.requestIdleCallback && window.requestIdleCallback &&
'object-fit' in (new Image()).style 'object-fit' in (new Image()).style
); );