Inter-window (cross-tab) communication library.
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/405935/819599/IWC.js
I am not the author of this library. I am simply posting it here on Greasy Fork so that I can use it in one of my scripts.
Source: https://github.com/slimjack/IWC
