Is China Planet: VIP podpora pre vaše nákupy z Číny safe?

// affiliates/geekbuying.js — runs at document_start on *://*.geekbuying.com/item*// (manifest.json content_scripts entry #2). Annotated below; the file ships// unminified, so the code text is unchanged apart from these comments.// Helper: returns `url` with the named query parameter removed.function removeQueryParam(url, param) {    // Split the URL into base and query string    const urlParts = url.split('?');    // If there's no query string or the param doesn't exist, return the URL as it is    if (urlParts.length < 2 || url.indexOf(param + '=') === -1) {        return url;    }    const baseUrl = urlParts[0];    const queryString = urlParts[1];    // Split the query string into key-value pairs    const queryParams = queryString.split('&');    // Filter out the parameter to be removed    const filteredParams = queryParams.filter(function (paramPair) {        return paramPair.split('=')[0] !== param;    });    // Reconstruct the query string    const newQueryString = filteredParams.join('&');    // Rebuild the URL    return baseUrl + (newQueryString ? '?' + newQueryString : '');}// The address of the product page the user opened.const url = window.location.href;// GUARD: do nothing only if the address ALREADY carries this partner's full// referral parameter set (partner 3983 or 764, sub-id extension /// xiaomiplanet / kuponovyportal). Any other state — including a competing// partner's parameters — falls through to the redirect branch below.if (    (url.includes("idev_id=764") || url.includes("idev_id=3983"))    &&    (url.includes("idev_subid=xiaomiplanet") || url.includes("idev_subid=kuponovyportal") || url.includes("idev_subid=extension"))    &&    url.includes("utm_source=affiliate.geekbuying.com")    &&    (url.includes("utm_medium=affiliate_764") || url.includes("utm_medium=affiliate_3983"))    &&    (url.includes("utm_campaign=764") || url.includes("utm_campaign=3983"))    &&    (url.includes("utm_content=764") || url.includes("utm_content=3983"))) {    // "url je okej" (Slovak: "the url is okay") — leave the page alone.} else {    // STRIP: remove any referral / campaign parameters already on the address,    // including ones placed there by a different referrer.    let clean_url = removeQueryParam(url, "idev_id");    clean_url = removeQueryParam(clean_url, "idev_subid");    clean_url = removeQueryParam(clean_url, "utm_source");    clean_url = removeQueryParam(clean_url, "utm_medium");    clean_url = removeQueryParam(clean_url, "utm_campaign");    clean_url = removeQueryParam(clean_url, "utm_content");    clean_url = removeQueryParam(clean_url, "utm_term");    // REDIRECT: send the tab through the affiliate service with partner id    // 3983 and sub-id "extension", carrying the cleaned address in `url=`.    const new_url = "https://affiliate.geekbuying.com/deeplink.php?affid=3983&sub_id=extension&url=" + encodeURIComponent(clean_url);    location.replace(new_url);   // top-level navigation, no user interaction}