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add check for intersectionObserver support

This commit is contained in:
Ray Elliott 2020-05-21 16:17:19 +01:00
parent 8a4503c925
commit 7f1b138304
1 changed files with 4 additions and 0 deletions
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4
src/js/index.js
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@ -1,5 +1,9 @@
(function() { (function() {
window.addEventListener('DOMContentLoaded', event => { window.addEventListener('DOMContentLoaded', event => {
if (!!window.IntersectionObserver) {
document.body.classList.add('supports-intersect');
}
function onScreenHandler(entries) { function onScreenHandler(entries) {
entries.forEach(entry => { entries.forEach(entry => {
if (entry.intersectionRatio > 0) { if (entry.intersectionRatio > 0) {