Rapidly pressing keys switches Braille mode on and off

Reproduce:

1. Rapidly press any character or number on the keyboard and the left or right arrow key.
2. Keep doing that until the mode switches.

Explanation:

The package keypress triggers the string 'escape' which might get interpreted letter by letter. As it includes ´c´ it could change the mode state. (This is an assumption, however, unconfirmed.)

Affected

Tested on

• Ubuntu 17.10 with gnome-terminal
• npm@5.4.2
• node@v8.1.3

Both the local mapscii and telnet version are affected.