ASSERTION FAILED: child->isTableCell()

Source/core/accessibility/AXTable.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 493 matching lines @@
 
     // Iterate backwards through the rows in case the desired cell has a rowspan and exists in a previous row.
     for (unsigned rowIndexCounter = row + 1; rowIndexCounter > 0; --rowIndexCounter) {
         unsigned rowIndex = rowIndexCounter - 1;
         AccessibilityChildrenVector children = m_rows[rowIndex]->children();
         // Since some cells may have colspans, we have to check the actual range of each
         // cell to determine which is the right one.
         for (unsigned colIndexCounter = std::min(static_cast<unsigned>(children.size()), column + 1); colIndexCounter > 0; --colIndexCounter) {
             unsigned colIndex = colIndexCounter - 1;
             AXObject* child = children[colIndex].get();
-            ASSERT(child->isTableCell());
+
             if (!child->isTableCell())
                 continue;
 
             pair<unsigned, unsigned> columnRange;
             pair<unsigned, unsigned> rowRange;
             AXTableCell* tableCellChild = toAXTableCell(child);
             tableCellChild->columnIndexRange(columnRange);
             tableCellChild->rowIndexRange(rowRange);
 
             if ((column >= columnRange.first && column < (columnRange.first + columnRange.second))
@@ skipping 45 matching lines @@
     }
 
     // try the standard
     if (title.isEmpty())
         title = AXRenderObject::title();
 
     return title;
 }
 
 } // namespace blink