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further preload testing

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Flo Greistorfer
2024-10-21 07:11:52 +02:00
committed by Flo Greistorfer
parent cc783ee30e
commit f6cf89a37f
1 changed files with 13 additions and 9 deletions
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22
templates/index.html.j2
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@@ -195,19 +195,23 @@
}
function prefetch(img) {
let link = document.createElement("link");
link.rel = "preload";
link.as = "image";
link.href = items[img].src;
document.body.appendChild(link);
let _img = document.createElement("img");
_img.ariaHidden = true;
_img.style.display = "none";
_img.className = "preload";
_img.onload = function () {
document.body.removeChild(_img);
};
_img.src = items[img].src;
document.body.appendChild(_img);
}
function cancel(img) {
let links = document.body.getElementsByTagName("link");
for (let link in links) {
let ling = links[link]
let imgs = document.body.getElementsByTagName("img");
for (let ing in imgs) {
let ling = imgs[ing]
try {
if (ling.getAttribute("rel") == "preload" && ling.getAttribute("href") == items[img].src) {
if (ling.getAttribute("class") == "preload" && ling.getAttribute("src") == items[img].src) {
document.body.removeChild(ling);
}
}