Bug 228573

Summary:	AX: Safari/VoiceOver: Table headers aria-describedby isn't announced by VoiceOver
Product:	WebKit	Reporter:	Daniel Lu <danilu>
Component:	Accessibility	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	andresg_22, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari 14
Hardware:	iPhone / iPad
OS:	iOS 14

Description Daniel Lu 2021-07-28 16:41:42 PDT

In iOS 14.7.1, content associated with a table header via aria-describedby are not being announced by VoiceOver. Tapping on the column header or navigating to the header via swipe operations result in VoiceOver announcing the text of the column, the column/row index, etc but just not the aria-describedby content. 

See https://xyi4e.csb.app/ to reproduce:
Repro Steps:
1. Turn on VoiceOver and navigate to the link in Safari in you iPhone/iPad.
2. Navigate to the "Date" column header via tapping on it or swipe commands.
3. Note that VoiceOver doesn't announce "test description" even though that div is associated with the header via aria-describedby.

Note: This works on macOS 14 + VoiceOver + Safari 14

Comment 1 Radar WebKit Bug Importer 2021-07-28 16:41:53 PDT

<rdar://problem/81242529>