InsertCellsExpand1

third_party/blink/web_tests/tables/mozilla/dom/insertCellsExpand1.html

149.0.7827.2111 B

The 2 tables should look the same

| c11 | c12 | | c21 | c22 |

| c11 | X2 | X1 | c12 | | c21 | X4 | X3 | c22 |