NVDA skip on empty TH cells in PDF files

[toovyaShenfled]

Steps to reproduce:

Download this pdf: B.pdf

when you listten to NVDA you will notise that NVDA dos'nt read
the first cell (TH) becouse is empty (no text or tag in it).

Actual behavior:

when you listten to NVDA you will notise that NVDA dos'nt read
the first cell and the first cell is the secod one.
all the colonms headers ont in the place.

Expected behavior:

NVDA should say to user that first cell that empty

System configuration

NVDA installed/portable/running from source:

NVDA installed on my computer

NVDA version:

2021.3.5

Windows version:

window 11

Name and version of other software in use when reproducing the issue:

acrobat pro

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

yes , 2022.1
the same problem as before.

If NVDA add-ons are disabled, is your problem still occurring?

yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

yes

[Brian1Gaff]

Is that only in Hebrew, or is it general? Brian

…

-- ***@***.*** Sent via blueyonder.(Virgin media) Please address personal E-mail to:- ***@***.***, putting 'Brian Gaff' in the display name field. ----- Original Message ----- From: "toovyaShenfled" ***@***.***> To: "nvaccess/nvda" ***@***.***> Cc: "Subscribed" ***@***.***> Sent: Tuesday, July 12, 2022 7:02 AM Subject: [nvaccess/nvda] NVDA skip on empty TH cells in PDF files (Issue #13889)

### Steps to reproduce: do to this link: https://aisrael-my.sharepoint.com/:b:/g/personal/toovya_aisrael_org/Ea4PtbDeftBDj_kEfQjv7UMBA0iGONrXuumVUNDs77WRXA?e=VAHQWr (the file is in Hebrew, sorry for this. if you open NVDA in speek view you can see what NVDA reads). when you listten to NVDA you will notise that NVDA dos'nt read the first cell (TH) becouse is empty (no text or tag in it). ### Actual behavior: when you listten to NVDA you will notise that NVDA dos'nt read the first cell and the first cell is the secod one. all the colonms headers ont in the place. ### Expected behavior: NVDA should say to user that first cell that empty ### System configuration #### NVDA installed/portable/running from source: NVDA installed on my computer #### NVDA version: 2021.3.5 #### Windows version: window 11 #### Name and version of other software in use when reproducing the issue: acrobat pro #### Other information about your system: ### Other questions #### Does the issue still occur after restarting your computer? yes #### Have you tried any other versions of NVDA? If so, please report their behaviors. yes , 2022.1 the same problem as before. #### If NVDA add-ons are disabled, is your problem still occurring? yes #### Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu? yes -- Reply to this email directly or view it on GitHub: #13889 You are receiving this because you are subscribed to this thread. Message ID: ***@***.***>

[toovyaShenfled]

in general.
to mimicat the problem, create table with first TH cell empty without any tags or text in it. (see the attached file).
then you should see the problem.

B.pdf

[seanbudd]

I can reproduce this with 2022.2rc1

[toovyaShenfled]

you mean that the problem fixed with version 2022.2rc1?

[seanbudd]

No - this is still an issue

[brennanyoung]

Side note (in case related?) PDF table headers are failing across all major browsers except Safari at time of writing.
JAWS currently is no better than NVDA.

NVDA and the Acrobat Reader plugin seem to handle them properly tho. (Test done with IE).
https://www.powermapper.com/tests/screen-readers/pdf/pdf-table-headers/