'wysiwyg.js' is a (uglified) 12k contenteditable-editor with no dependencies.
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/11012/62427/wysiwygjs.js
WYSIWYG library wysiwyg.js containing contents from files wysiwyg.js
and wysiwyg-editor.js
combined into a single file.