h5/js/url-cache.js

// const storageKey = 'bex_preferred_theme';

function checkCache() {
    var STORAGE_KEY = 'bex_last_search';
    var url = new URL(window.location.href);
    url.searchParams.delete('_t');
    var normalizedSearch = url.search;   // 这就是不含时间戳的“纯净”查询部分

    try {
        var cachedSearch = localStorage.getItem(STORAGE_KEY);
    } catch (e) {
        return;   // localStorage 不可用则直接退出
    }
    if (cachedSearch !== normalizedSearch) {
        try {
            localStorage.setItem(STORAGE_KEY, normalizedSearch);
            localStorage.removeItem(storageKey);
        } catch (e) { }
        // 构造新 URL：在原始纯净 search 的基础上添加新的时间戳
        url.searchParams.set('_t', Date.now());
        window.location.replace(url.toString());
    }
}
// checkCache()