<script>
function init() {
var imgDefer = document.getElementsByTagName('img');
for (var i=0; i<imgDefer.length; i++) {
if(imgDefer[i].getAttribute('data-src')) {
imgDefer[i].setAttribute('src',imgDefer[i].getAttribute('data-src'));
} } }
window.onload = init;
</script>
Atau lebih lengkapnya, gunakan kode berikut:
<script type='text/javascript'>
//<![CDATA[
$("img").each(function(){$(this).attr("data-src",$(this).attr("src"));$(this).attr("src","data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=")});
function init(){var e=document.getElementsByTagName("img");for(var t=0;t<e.length;t++){if(e[t].getAttribute("data-src")){e[t].setAttribute("src",e[t].getAttribute("data-src"))}}}window.onload=init;
//]]>
</script>
Sumber: http://www.kompiajaib.com/2014/12/deferring-images-that-have-been.html