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Documentation of accessibility observations for Deutsche Telekom – Mobilfunk & OneShop

2.1.1 Keyboard (A) Footnote dialog window does not receive keyboard focus on open

Priority: Moderate Unknown Page: Smartwatches Observation Permalink
Observation Details

When opening a footnote dialog window, the keyboard focus is not set to said dialog window. This leads to multiple issues:

  • The contents of the dialog window are not accessible via keyboard.

  • The dialog window can not be closed with the keyboard (easily or at all).

  • While the dialog window is open, keyboard navigation of the underlying page is still possible; the dialog window however blocks the view.

  • Since keyboard navigation stays possible, opening multiple dialog windows above each other also is possible.

Remediation Notes

Opening a dialog window with the keyboard must set the focus into the dialog window. Preferably onto the close button as the first interactive element in the dialog window. The focus must also be trapped inside the dialog window so the underlying page cannot be reached by keyboard while the dialog window is opened.

A better approach would be to use a <dialog> element for dialog windows.