https://www.graszodenkopen.nl/wp-content/themes/neograszodenkopen/…/scripts/utils/lazy-video.js?ver=1773229081

1(function () {
2	'use strict';
3
4	function loadVideo( video ) {
5		var sources = video.querySelectorAll( 'source[data-src]' );
6		sources.forEach( function ( source ) {
7			source.src = source.getAttribute( 'data-src' );
8			source.removeAttribute( 'data-src' );
9		} );
10
11		var dataSrc = video.getAttribute( 'data-src' );
12		if ( dataSrc ) {
13			video.src = dataSrc;
14			video.removeAttribute( 'data-src' );
15		}
16
17		video.preload = 'metadata';
18		video.load();
19		video.classList.remove( 'lazy-video' );
20	}
21
22	if ( 'IntersectionObserver' in window ) {
23		var observer = new IntersectionObserver( function ( entries ) {
24			entries.forEach( function ( entry ) {
25				if ( entry.isIntersecting ) {
26					loadVideo( entry.target );
27					observer.unobserve( entry.target );
28				}
29			} );
30		}, { rootMargin: '200px' } );
31
32		document.querySelectorAll( 'video.lazy-video' ).forEach( function ( video ) {
33			observer.observe( video );
34		} );
35	} else {
36		document.querySelectorAll( 'video.lazy-video' ).forEach( loadVideo );
37	}
38})();