This is a quick and dirty trick to get all HTTPS local connections to `raw.githubusercontent.com`_ being redirected to `RawGit`_ CDN (https://cdn.rawgit.com).
By using this hack, you can fool your applications into connecting to `RawGit`_ every time they try to connect to `raw.githubusercontent.com`_.
Of course, this implies that you trust `RawGit`_ to the same degree as `GitHub`_ to serve the contents.
The trick relies on a local Python script issuing HTTP redirects.