https://bassonline.com/wp-content/themes/blocksy-child/assets/js/bol-prefetch.js?ver=1.0.0

1(function () {
2  // Only on Explore template
3  function onExplore() {
4    return document.body.classList.contains('page-template-template-explore-bol');
5  }
6
7  // Lightweight prefetch helper
8  function prefetch(url) {
9    if (!url || url.indexOf('#') !== -1) return;
10    try {
11      // Avoid duplicate <link> for same URL
12      if (document.querySelector('link[rel="prefetch"][href="' + url + '"]')) return;
13      const l = document.createElement('link');
14      l.rel = 'prefetch';
15      l.href = url;
16      l.as = 'document';
17      document.head.appendChild(l);
18    } catch (e) {}
19  }
20
21  // Attach listeners to current cards
22  function wire(scope) {
23    const cards = (scope || document).querySelectorAll('.wpgb-card');
24    cards.forEach(card => {
25      if (card.dataset.bolPrefetch === '1') return;
26      const a = card.querySelector('.bol-card-title a, h2 a, h3 a, a.card-cta, .bol-card-overlay');
27      if (!a || !a.href) return;
28
29      const url = a.href;
30      const hover = () => prefetch(url);
31      const touch = () => prefetch(url);
32
33      card.addEventListener('mouseenter', hover, { passive: true });
34      card.addEventListener('focusin', hover, { passive: true });    // keyboard focus
35      card.addEventListener('touchstart', touch, { passive: true }); // mobile tap
36
37      card.dataset.bolPrefetch = '1';
38    });
39  }
40
41  document.addEventListener('DOMContentLoaded', function () {
42    if (!onExplore()) return;
43    wire();
44
45    // Re-wire after WPGB updates the grid
46    document.addEventListener('wpgb:updated', function (e) {
47      wire(e.target || document);
48    }, { passive: true });
49
50    // Fallback: observe DOM changes
51    const grid = document.querySelector('.wpgb-grid');
52    if (grid) {
53      const mo = new MutationObserver(() => wire(grid));
54      mo.observe(grid, { childList: true, subtree: true });
55    }
56  });
57})();