Chrome: 66.0.3355.0 Canary
Braille display: Focus 40 5.80-23

Steps to repro:
# Turn ChromeVox on with ctrl+alt+z
# Plug in the braille display
# ChromeVox announces: 'Alert, Braille display connected'
# Press search+a, search+d
# ChromeVox announces the time and date
# Notice that the braille display does not display the time and date

Expected: Braille display shows time and date

Actual: Braille display doesn't display the time and date