Vad är ComFoo? Så fungerar det och vem det passar

/**
 * ComFoo Single Post — footer enhancements (blog template only).
 * Load with defer via Bricks Single Post → Footer scripts / External JS.
 */
(function () {
  'use strict';

  var root = document.querySelector('.single-post-7__content');
  if (!root) {
    return;
  }

  /** First hero / above-fold image: avoid lazy LCP penalty on blog posts. */
  function fixHeroLcp() {
    var heroImg =
      root.querySelector('[class*="-hero"] img') ||
      root.querySelector('img[fetchpriority="high"]') ||
      root.querySelector('img');

    if (!heroImg || heroImg.getAttribute('loading') !== 'lazy') {
      return;
    }
    heroImg.removeAttribute('loading');
    heroImg.setAttribute('fetchpriority', 'high');
  }

  /** Smooth scroll for in-post TOC anchors. */
  function bindToc() {
    root.querySelectorAll('[class*="-toc"] a[href^="#"]').forEach(function (link) {
      link.addEventListener('click', function (e) {
        var id = link.getAttribute('href');
        if (!id || id.length < 2) {
          return;
        }
        var target = root.querySelector(id) || document.querySelector(id);
        if (!target) {
          return;
        }
        e.preventDefault();
        target.scrollIntoView({ behavior: 'smooth', block: 'start' });
        if (history.replaceState) {
          history.replaceState(null, '', id);
        }
      });
    });
  }

  fixHeroLcp();
  bindToc();
})();