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Instructions for Custom Keyboard Shortcuts

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From: Peter Quale
Date: Jan 10, 2020 11:35AM

Wondering if anyone can help justify a requirement.

In my mind, if a web application requires a custom keyboard shortcut or has
non-standard keyboard interactions, instructions are required. I'm not
finding any WCAG success or failure examples that match what I'm looking
for.

I did find a Deque University
<https://dequeuniversity.com/checklists/web/device-independent-input> page
that claims this is covered by 3.3.2. Quote: "Custom Keystroke
Instructions: When custom keyboard behavior is required to use a component,
keyboard instructions MUST be provided."

Would anyone know where the Deque team finds this correlation with 3.3.2,
other than logic says so.

We're in one of those delightful situations where the developer won't budge
unless they read it themselves. So, short of hacking the W3C site and
adding my own success technique, I'm looking for official documentation.

Thanks so much for any assistance!

-Peter Q

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*Peter Quale*
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