This plugin (or extension) acts as a backup and/or replacement for the CDN based files for Select2 and ACE Editor used within Redux Framework.
First, set use_cdn => false
in your config if you want this to be permamently used, but if not it will only be used when the CDN fails.
Take this entire repo and load it as an extension. The CDN files will now be served locally.
Take the ~/vendor_support folder and load it as an extension for your version of Redux.
Redux::setExtensions( 'OPT_NAME', 'PATH_TO_vendor_support' );
If you wish to reduce the size of this plugin/extension, you may decide to remove folders within ~/vendor_support/vendor/
according to your needs. It is strongly suggested that you leave the Select2 folder, as so many different fields heavily use this code.