Google Chrome OS 67.0.3369.0 (Official Build) canary (64-bit)
Firmware Version Google_Samus.6300.276.0

Steps to repro:
# Start ChromeVox with ctrl + alt + z
# Launch Secure Shell from the Chromebook launcher
# Attempt to navigate or interact with the resulting tab in any way
Expected: normal behavior
Actual: non-responsive to keys

Marking as p1 since screen reader user is totally blocked.