Bug 278370 – AX: iframe within inert, hidden element is exposed to ATs

• Status: RESOLVED
• Resolution: FIXED
• Component: Accessibility

[Curtis Wilcox]

Created attachment 472242 [details]
Demo iframe within div with inert

When an iframe has an element with the `inert` attribute as an ancestor, VoiceOver is able to access the iframe and its contents as if the `inert` attribute was not present.

Using macOS VoiceOver, Read All will read the iframe and its contents, arrow navigation can navigate to and within the iframe, elements within the iframe appear in the Web Rotor.

Using iOS VoiceOver, swipe navigation accesses the elements as do Web Rotor swipes; explore by touch does not reliably move the virtual cursor to elements within the iframe.

Tested with Safari 17.6 and Safari Technology Preview Release 201 on macOS Sonoma 14.6.1.
Tested with Safari on iOS 17.6.1.

[Radar WebKit Bug Importer]

<rdar://problem/134318347>

[Joshua Hoffman]

Re-titling this bug to reflect that the fix for this will cover both the `inert` attribute and `visibility: hidden` on iFrames.

[Joshua Hoffman]

Pull Request: https://github.com/WebKit/WebKit/pull/33213

[EWS]

Committed 283416@main (3d864212d2b1): <https://commits.webkit.org/283416@main>

Reviewed commits have been landed. Closing PR #33213 and removing active labels.

[EWS]

Committed 280938.351@safari-7619-branch (beefe2561599): <https://commits.webkit.org/280938.351@safari-7619-branch>

Reviewed commits have been landed. Closing PR #1813 and removing active labels.

[EWS]

Committed 283286.292@safari-7620-branch (709b05046a6c): <https://commits.webkit.org/283286.292@safari-7620-branch>

Reviewed commits have been landed. Closing PR #2034 and removing active labels.