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Re: in a modal dialog can the tab focus go to the browser UI?

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From: JP Jamous
Date: Jan 31, 2017 11:27AM


Answers below.

-----Original Message-----
From: WebAIM-Forum [mailto: <EMAIL REMOVED> ] On Behalf Of Ramakrishnan Subramanian
Sent: Tuesday, January 31, 2017 12:20 PM
To: <EMAIL REMOVED>
Subject: [WebAIM] in a modal dialog can the tab focus go to the browser UI?

Dear members,
I kindly request your inputs on the following scenario as per the WCAG guideline and aria authorization practice:

Actual behavior:
In a modal dialog while navigating using tab /shift tab keys: though the focus is trapped inside the dialog, when we hit tab key from the last focusable element inside the dialog, the focus is going to the browser UI.

That's typical as that is the standard behavior unless you restrict the user to the modal.

Expected behavior:
1. When we hit tab from the last focusable element, the focus should
go to the first focusable element inside the dialog.
2. when we hit shift tab from the first focusable element, the focus should go to the last focusable element inside the dialog.

You can do the above with ARIA. You won't be violating any WCAG criteria. Unless you provide a Close button to allow the user to return to the browser UI. If you do not provide a Close button, you won't be in compliance with WCAG level A criteria.



Is this only a best practice? Or
Is this mandatory to pause wecag guidelines?

: should we flag this as bug as per wcag and aria authorization?
If the developers feel that this is something which is a browser behavior which need not be altered.
Is that fine?

Thanks and Regards,
Ramakrishnan