code: function in_head_noscript_mode(t, value, arg3, arg4) {
      switch(t) {
      case 5: // DOCTYPE
        return;
      case 4: // COMMENT
        in_head_mode(t, value);
        return;
      case 1: // TEXT
        var ws = value.match(LEADINGWS);
        if (ws) {
          in_head_mode(t, ws[0]);
          value = value.substring(ws[0].length);
        }
        if (value.length === 0) return; // no more text
        break; // Handle non-whitespace below
      case 2: // TAG
        switch(value) {
        case "html":
          in_body_mode(t, value, arg3, arg4);
          return;
        case "basefont":
        case "bgsound":
        case "link":
        case "meta":
        case "noframes":
        case "style":
          in_head_mode(t, value, arg3);
          return;
        case "head":
        case "noscript":
          return;
        }
        break;
      case 3: // ENDTAG
        switch(value) {
        case "noscript":
          stack.pop();
          parser = in_head_mode;
          return;
        case "br":
          break;  // goes to the outer default
        default:
          return; // ignore other end tags
        }
        break;
      }
  
      // If not handled above
      in_head_noscript_mode(ENDTAG, "noscript", null);
      parser(t, value, arg3, arg4);
    }
docs: 13.2.5.4.5 The "in head noscript" insertion mode