                         td.appendChild(childTable)
                            this.renderTable(frameId)
                            if (childDf.nrow !== childDf.totalRows) {
                                const footer = document.createElement("p")
                                footer.innerText = `... showing only top ${childDf.nrow} of ${childDf.totalRows} rows`
                                td.appendChild(footer)
                            }
                        } else {
                        