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Re: Trapping focus in an alert

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From: Meacham, Steve - FSA, Kansas City, MO
Date: Apr 5, 2018 12:13PM


Assuming this is a web page, a modal dialog containing such an alert should not only trap keyboard focus, but make the controls underneath inert and visually obscured or dimmed, and do likewise with ARIA via aria-hidden or aria-modal.

I could imagine (not recommend) this being done non-modal. In that case, no, do not trap the focus.

-----Original Message-----
From: WebAIM-Forum [mailto: <EMAIL REMOVED> ] On Behalf Of Lovely, Brian via WebAIM-Forum
Sent: Thursday, April 5, 2018 12:38 PM
To: WebAIM Discussion List < <EMAIL REMOVED> >
Subject: [WebAIM] Trapping focus in an alert

We have an alert that tells the user they have so many minutes remaining in their session. The alert also contains two buttons, one to continue and one to sign out. The container has a role of alert, and focus is shifted to the container when the alert is displayed. My question is whether or not to trap focus in the alert so the user cannot navigate away until they have activated one of the buttons.

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