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Documentation of accessibility observations for Deutsche Telekom – Mobilfunk & OneShop

2.1.1 Keyboard (A) "Info" dialog window does not trap keyboard focus on open

Priority: Critical Medium Page: Mobilfunk Netzausbau Observation Permalink
Observation Details

When opening the "Info" dialog window in the interactive map, the keyboard focus is not trapped in said dialog window. This leads to these observations:

  • The non-interactive contents of the dialog window are not accessible via keyboard (scrolling should be available with ARROW keys).

  • Keyboard navigation out of the dialog window is possible. This can be the desired way and on its own is no failure of this criterion, as moving out of the dialog window while open, will move the focus out of the map completely, thus not interfering with other content.

Remediation Notes

Opening a dialog window with the keyboard sets the focus into the dialog window and traps it within the map component but not the whole page. This means, scrolling inside the dialog window is not possible with ARROW keys. Ensure, next to TAB for navigating interactive elements, ARROW keys can be used for navigating non-interactively (scrolling text content) within the dialog window.