Force oembed to not show related videos

script.js

// Get all the iframes present on the page
const iframes = document.querySelectorAll('iframe');

// Loop through each iframe to check if it contains "youtube.com" in its src
for (const iframe of iframes) {
  const src = iframe.getAttribute('src');
  if (src.includes('youtube.com')) {
    // Append ?rel=0 to the existing src
    const modifiedSrc = src + '?rel=0';
    iframe.setAttribute('src', modifiedSrc);
  }
}