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fix(img): use setTimeout fallback on older versions of chrome (#21358)

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Evgeniy
2020-06-10 19:03:37 +03:00
committed by GitHub
parent cf3035778c
commit 0bf9449ee1
1 changed files with 5 additions and 1 deletions
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6
core/src/components/img/img.tsx
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@ -53,7 +53,11 @@ export class Img implements ComponentInterface {
if (this.src === undefined) {
return;
}
if ('IntersectionObserver' in window) {
if (
typeof (window as any) !== 'undefined' &&
'IntersectionObserver' in window &&
'IntersectionObserverEntry' in window &&
'isIntersecting' in window.IntersectionObserverEntry.prototype) {
this.removeIO();
this.io = new IntersectionObserver(data => {
// because there will only ever be one instance