Created attachment 165927 [details] Example. Tables' content should not be formatted as headings, as heading marks are significant for PDF assistive technologies, so Accessibility Check should warn of suck situations.
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Ivan Stefanenko committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/528cc99c57fa90a08c92e8bf654a0efee8ecf39f tdf#137104 Added a check for headings in tables It will be available in 7.1.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.