Tagging table cell contents, attribute inherited
When remediating a document created from Word, we had a group of tables (actually embedded Excel sheets) that auto-tagged as Figures. When the cells in these Figures were manually tagged using the Reading Order Tool they inherited the Bounding Box and Placement attributes of the Figure tag they were within. If the Figure tag was deleted and then the content was tagged this problem did not occur, but who knew this would happen? This caused unexpected issues using several remediation Tools -- Commonlook Validator would not open the file and Axes PDF Quick Fix showed a large bounding box around each table cell selected. The problem did not appear to cause an accessibility issues -- the file passed internal Acrobat check and PAC and screen readers did not stumble. However, this cannot really be passing UA as TD and TH should not have these a Bounding Box or Placement = Block attributes which these cells had!
Since I haven’t heard from you, I believe the issue is resolved on your side.
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Rae Benedetto commented
Sorry I cannot share this. The documents are confidential. If you have a Word file with an embedded Excel file which is not linked or, if linked, not available on the machine you are working on, you may be able to reproduce the problem. THe Excel sheets tagged as a Figure, the individual who remediated the document used the Reading Order Tool to manually tag the cells in the table. I don't know if they chose "Table" or "Cell" or if they used a Paragraph tag and then renamed it. Every tagged element that was originally in that Figure tag had a bounding box attribute set. I did Quality Control on the file they remediated and noted the problem and was able to recreate it from the original Word file.