[Webkit-unassigned] [Bug 210210] New: AX: "Skip to Main Content" navigation broken on US Census site.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210210

            Bug ID: 210210
           Summary: AX: "Skip to Main Content" navigation broken on US
                    Census site.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jcraig at apple.com
                CC: webkit-bug-importer at group.apple.com

Created attachment 395853

  --> https://bugs.webkit.org/attachment.cgi?id=395853&action=review

DOM tree screen cap showing bug

"Skip to Main Content" navigation broken on US Census site.
https://my2020census.gov

The skip link is nulled (“#”) and then they call a JavaScript function to focus an aria-hidden, yet focusable, empty span.

No surprise this technique doesn’t work (who would do this?) but I think it might be a WebKit bug nonetheless. If focus is moved to a node that is rendered, but hidden via @aria-hidden, WebKit should invalidate the use of aria-hidden on the node or its ancestor node.

ARIA 7.2 Tree Inclusion
https://rawgit.com/w3c/aria/master/#tree_inclusion

"…user agents MUST provide an accessible object in the accessibility tree for DOM elements that…are focusable…"

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