// Listen for web requests
browser.webRequest.onBeforeRequest.addListener(
  function(details) {
    const url = new URL(details.url);
    
    // Check if the URL is a YouTube URL
    if (url.hostname === "www.youtube.com" || url.hostname === "youtube.com") {
      // Extract the video ID from the URL
      const videoId = url.searchParams.get("v");
      if (videoId) {
        // Rewrite to the embedded URL format
        const embedUrl = `https://www.youtube.com/embed/${videoId}`;
        return { redirectUrl: embedUrl };
      }
    }
  },
  { urls: [  "*://www.youtube.com/*",
      "*://youtube.com/*"] },
  ["blocking"]
);