Google Chrome	64.0.3242.0 (Official Build) unknown (64-bit)
Revision	0
Platform	10044.0.0 (Official Build) dev-channel caroline test
Firmware Version	Google_Caroline.7820.316.0
Customization ID	SAMSUNG-CAROLINE
ARC	4400323
JavaScript	V8 6.4.16
Flash	27.0.0.170 /opt/google/chrome/pepper/libpepflashplayer.so
User Agent	Mozilla/5.0 (X11; CrOS x86_64 10044.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3242.0 Safari/537.36


What steps will reproduce the problem?
(1) open chrome://inspect/#extensions
(2) Search "Chrome OS XKB" extension then click "inspect"


What is the expected result?
Open "Chrome OS XKB" extension background page. Then we can debug the extension.

What happens instead?
The background page. Chrome flashed. It seems chrome crashed.

I find the bug when I am investigating  crbug.com/779915