[Webkit-unassigned] [Bug 273333] New: AX: ARIA: remove aria-expanded from supported attributes from role listbox

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Apr 26 11:24:35 PDT 2024


https://bugs.webkit.org/show_bug.cgi?id=273333

            Bug ID: 273333
           Summary: AX: ARIA: remove aria-expanded from supported
                    attributes from role listbox
           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: spectranaut at igalia.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

ARIA is removing `aria-expanded` from listbox role's supported attribute list: https://github.com/w3c/aria/pull/1862

Rule 5 in CORE-AAM's State and Property Mapping General Rules (https://w3c.github.io/core-aam/#statePropertyMappingGeneralRules) says:

> Some WAI-ARIA properties are not global, and are only supported on certain roles. If a non-global WAI-ARIA state or property is used where it is not supported, user agents SHOULD NOT map the given WAI-ARIA property to the platform accessibility API. For example, if `aria-checked="true"` is specified on `<div role="grid">`, it should not be exposed in MSAA implementations as STATE_SYSTEM_CHECKED.

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