static S embedYoutube_newer(S youtubeID, bool loop default false) {
  ret embedYoutube_newer(youtubeID, 300);
}

static S embedYoutube_newer(S youtubeID, int w, bool loop default false) {
  ret embedYoutube_newer(youtubeID, w, sixteenToNine(w));
}

static S embedYoutube_newer(S youtubeID, int w, int h, bool loop default false) {
  youtubeID = extractYouTubeID(youtubeID);
  ret iframe("https://www.youtube.com/embed/" + youtubeID,
    width := w,
    height := h,
    frameborder := 0,
    allow := "autoplay; encrypted-media",
    allowfullscreen := html_valueLessParam());
}