[Webkit-unassigned] [Bug 201952] AX: VO can still access content that's inside a visibility:hidden iframe

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=201952

--- Comment #3 from Mihira Jayasekera <mihira at tinymachine.net> ---
This bug persists in macOS 12.4 and iOS 15.5 -- see attached screencast depicting the error in iOS 15.5. This defies common sense and the current WAI-ARIA 1.3 Editor's Draft (https://w3c.github.io/aria/#tree_exclusion), which states:

> The following elements are not exposed via the accessibility API and user agents MUST NOT include them in the accessibility tree:

> • Elements, including their descendent elements, that have host language semantics specifying that the element is not displayed, such as CSS display:none, visibility:hidden, or the HTML hidden attribute.

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