69.0.3497.23 (Official Build) dev (64-bit) (cohort: Dev)	
JAWS 2018.1807.29 ILM	
NVDA 2018.2.1

Steps to reproduce:
# Turn on either screen reader
# Open the new tab page
# Press "b" to navigate by button
Expected: voice search button recognized as a button
Actual: not included in button choices

Here is where behavior differs by screen reader:
# Open JAWS and the NTP
# Use tab to navigate to voice search button
# Press enter or space to invoke it
Expected: voice search starts
Actual: nothing happens

This doesn't reproduce with NVDA, the button can be invoked with it. 

 

69.0.3497.23 (Official Build) dev (64-bit) (cohort: Dev)	
JAWS 2018.1807.29 ILM	
NVDA 2018.2.1

Note that the button is labeled properly so screen readers will read the name of the button, this is for other features of this button.

Steps to reproduce:
# Turn on either screen reader
# Open the new tab page
# Press "b" to navigate by button
Expected: voice search button recognized as a button
Actual: not included in button choices

Here is where behavior differs by screen reader:
# Open JAWS and the NTP
# Use tab to navigate to voice search button
# Press enter or space to invoke it
Expected: voice search starts
Actual: nothing happens

This doesn't reproduce with NVDA, the button can be invoked with it.