code: function startTagInSelectInTable(p, token) {
      const tn = token.tagName;
  
      if (
          tn === $.CAPTION ||
          tn === $.TABLE ||
          tn === $.TBODY ||
          tn === $.TFOOT ||
          tn === $.THEAD ||
          tn === $.TR ||
          tn === $.TD ||
          tn === $.TH
      ) {
          p.openElements.popUntilTagNamePopped($.SELECT);
          p._resetInsertionMode();
          p._processToken(token);
      } else {
          startTagInSelect(p, token);
      }
  }
docs: 12.2.5.4.17 The "in select in table" insertion mode ------------------------------------------------------------------