Bug 237102

Summary:	AX: SVG with tabindex="-1" nested inside of link label not announced by VoiceOver
Product:	WebKit	Reporter:	Joe Watkins <joewatkinspdx>
Component:	Accessibility	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	andresg_22, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari 15
Hardware:	iPhone / iPad
OS:	iOS 15

Description Joe Watkins 2022-02-23 12:05:56 PST

When an SVG is nested inside of an <a> and this SVG owns role="img", aria-label="some label here", and tabindex="-1", it appears that the SVG is not included in calculating the accessible name for the control.  Removal of the tabindex="-1" results in the SVG's label being calculated as part of the parent link's accessible name.

Attributes such as aria-hidden="true" or CSS display:none; should have this effect, but should a negative tabindex on a naturally non-focusable element? 

This isn't a common approach and one would probably not recommend a negative tabindex on and SVG anyways, but feels like a name calculation bug (or an Apple-only opinion thing?). I'm not able to reference anywhere in the Accessible Name Calculation algorithm that the SVG should be taken out. 

Tnx!

1. Visit: https://cdpn.io/pen/debug/abVKxaX
2. Using Safari (or Chrome) with VoiceOver activated, traverse the links and listen for how they are announced.
3. Expected result: The first link should announce like the second. 

Tnx!

Comment 1 Radar WebKit Bug Importer 2022-02-23 12:06:07 PST

<rdar://problem/89370402>

Comment 2 Joe Watkins 2022-02-23 12:12:01 PST

Rewording expected result:

3. Expected result: Both links should announce the nested SVG's label regardless of tabindex attribute presence.