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(function () {
const url = self.location.href.split("#")[0];
const cookiesDisabled = !navigator.cookieEnabled;
let settings = { pager: {} };
if (cookiesDisabled) {
document.cookie = "disabled";
document.cookie.indexOf("disabled");
return console.log("Pager is disabled due to cookie restrictions.");
}
self.addEventListener("DOMContentLoaded", function () {
if (history.scrollRestoration) history.scrollRestoration = "manual";
if (localStorage["settings"]) {
settings = JSON.parse(localStorage["settings"]);
}
if (self.location.hash.length > 0) {
settings["pager"][url] = self.pageYOffset;
localStorage["settings"] = JSON.stringify(settings);
document.getElementById(location.hash.slice(1)).scrollIntoView();
self.addEventListener("load", function () {
document.getElementById(location.hash.slice(1)).scrollIntoView();
});
return;
}
if (settings["pager"][url] > 0) {
self.scrollTo(0, settings["pager"][url]);
return;
}
settings["pager"][url] = self.pageYOffset;
localStorage["settings"] = JSON.stringify(settings);
});
self.addEventListener("scroll", function () {
const currentPosition = self.pageYOffset;
settings["pager"][url] = currentPosition;
localStorage["settings"] = JSON.stringify(settings);
});
self.addEventListener("DOMContentLoaded", function () {
const up = document.getElementById("top");
const back = document.getElementById("back");
self.addEventListener("click", function (event) {
if (document.body.contains(up) && up.contains(event.target)) {
event.preventDefault();
window.scrollTo(0, 0);
}
if (document.body.contains(back) && back.contains(event.target)) {
if (history.length < 2) return;
event.preventDefault();
history.go(-1);
}
});
});
})();
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