Error · accesskeys
Duplicate keyboard shortcuts
Lighthouse / axe call it: accesskey attribute value should be unique · [accesskey] values are not unique
Two elements share the same shortcut key; only one works.
Who it leaves out: people who can't use a mouse
How to fix it
Make shortcuts unique or remove them.
In the code
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Related errors
Automated testing covers roughly half of WCAG criteria; a full conformance claim also requires manual review. Technical information, not legal advice.