Very unusual authorization headers

[luluapple]

I'm trying to download some videos and one of the sites have headers that look like this:

Authorization: id_prog=21223&token=aac35dce-7a86-dfe4-0d53-521f482bfe94&drm=widevine&type=streaming&cert=ekK7FyB6V6S-FcDuka3... (long string)

Has anyone seen anything like this before and know what to do with them? I tried using them like you do with Bearer, x-dt-auth etc. but keep getting a 400 response. There's something else that need to be done with these.

The site itself isn't important. I'm just curious if anyone has any experience with this type of headers?

[2nHxWW6GkN1l916N3ayz8HQoi]

What's the link?

[Obo]

A "Authorization" header in this form is really unusal and not standards conforming. Following standard the "Authorization" header needs an authorization scheme, which your example completely lacks. Not that it helps you. Are you completely sure you didn't miss something?