Google Chrome 65.0.3325.9 (Official Build) dev (64-bit)
Firmware Version	Google_Lulu.6301.136.57

# Enable ChromeVox
# Do something that causes an alert to be shown such as connecting an external monitor
Expected: Alert appears, is read, and is dismissed over time
Actual: Alert appears, is not auto dismissed, and is read every few minutes

It's unclear how to close these alerts with a keyboard.