Listen for consent and replace the iframe src conditionally - by WebToffee

sample.js

document.addEventListener("wcc_consent_update", function (eventData) {
    const categories = eventData.detail.categories;
    const accepted = categories && categories.accepted;

    document.querySelectorAll('iframe[data-src*="youtube.com"]').forEach(function (iframe) {
        if (accepted && accepted.includes('marketing')) {
            iframe.src = iframe.getAttribute('data-src');
        } else {
            iframe.removeAttribute('src');
        }
    });
});