Report not loaded properly if no access to https://cdn.rawgit.com

[andrewlaser]

Generated HTML report won't load properly if no access to external libs:
https://cdn.rawgit.com/anshooarora/extentreports-csharp/e468054d67d93c2fd9c8f0f60e31a7ea09fa3bf6/dist/js/extent.js and extent.css

Is it a limitation of the free version (no offline report) or does Pro version has the same issue?
The concern is about the stability of our Automation Framework.