Catch KeyboardInterrupt once and for all

[tushar-rishav]

Look https://asciinema.org/a/3x8x364ufuanlhghc6p6fby0k
It'd be nice to catch the exceptions that arise and are caught by webbrowser. Not sure how to do this.

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[Redridge]

Basically the port remains suspended?
I have used something like this in a previous project, maybe it helps.
Though it is not platform independent :(

import signal, sys

def signal_handler(signum, frame):
  print ("Exiting...")
  sys.exit(0)

# main somewhere here
signal.signal(signal.SIGINT, signal_handler)