Loading data from a shortened URL fails with HTTP Error 403: Forbidden

In many of my course materials, I have datasets that are loaded with pandas.read_csv(URL) where the URL is shortened using my university’s short-URL service. Here’s an example:
http://go.gwu.edu/engcomp2data4

You can see that this redirects to a raw .csv file in my course’s GitHub repository, and you can view the data directly on the browser. When trying to read the data into a pandas dataframe in an Anaconda Cloud notebook, I get HTTP Error 403: Forbidden. (It also happens with a URL to a Box shared file.

Is this something that can be resolved, or are there good reasons for this behavior?

BTW, using ‘https:…’ instead also fails. This time with: URLError: <urlopen error Tunnel connection failed: 403 Forbidden>