This module enables you to work in the Oxygen editor locally without an internet connection by replacing calls to assets from external CDN URLs with files from within the plugin.
Note: This is only applicable and useful when your WordPress (Oxygen) site is installed on your computer i.e., on localhost.
Credit for the plugin goes to Supa Mike. The code has been taken from his Load Oxygen Locally plugin.
One small improvement compared to his plugin is that this module loads Source Sans Pro font from within the Oxy Toolbox plugin so that the editor and Oxygen’s meta boxes in WP admin look virtually the same as with internet connection even without internet connection.