How to Check Whether a Website Dialog Traps Keyboard Focus Correctly

A modal dialog should make its content usable without losing keyboard users behind the overlay.

Checks to make

Open the dialog by keyboard, verify focus moves inside, tab through controls, keep focus contained while open, and return focus to the trigger when closed. Test Escape behavior and screen reader name and instructions.

When to get help

Accessibility review can assess dialogs and keyboard interaction patterns. Informatix Systems can assess the symptoms, evidence, and next steps. Contact Informatix Systems to discuss this issue.