Ctrl-\ is captured in the bliss shell (Usually linked to SIGQUIT)

But as soon as you do F5 to get the scan page, you can do Ctrl-C (SIGINT) and it seem captured.

BUT Ctrl-\ is not captured in the scan page. I think you should capture the same signal in the bliss shell as in the scan page... Users feel in the same environment and difference in behavior between the two is confusing.