Potential missing headers?

[atharvas]

This script returns a 404 whenever it queries a https://classtranscribe.illinois.edu/data/*.vtt url even after setting up the correct Authentication Bearer.

I'm not sure what's wrong but adding a referer header to the requests.session object fixed the error.
More precisely, I had to change this line from:

session.headers.update({'Authorization':  "Bearer "+ auth})

to:

random_video_uuid = ???
random_video = f"https://classtranscribe.illinois.edu/video?id={random_video_uuid}"
session.headers.update({'Authorization':  "Bearer "+ auth, 'referer':  random_video})

I'm not sure where the actual bug might be but cURL'ing a video without a referer header also 404's.