Spotify web player is not working any more

Description of the issue
Since a few days it is not possible to listen to music on Spotify anymore. This seems due to a change in Spotify, not in Brave. The page loads normally, but if you try to listen to a song, the following message pops up:

An error occurred

Spotify no longer supports this version of Chrome. Please update your browser for uninterrupted listening.

Might have something to do with Widevine. There are failed (HTTP 400) requests that hint to it:

These errors are not there in Chrome - and playing music still works there too.

I’m using a Spotify premium account (in case it makes a difference on how they protect their content).

There are other people with the same recent error. No solution yet. Might be related:
https://twitter.com/search?f=tweets&vertical=default&q=spotify%20error%20chrome&src=typd

Exact URL of the website in question

Did the issue present with default Shields settings? [Default states are: Block: Ads/Trackers, 3rd Party Cookies, 3rd Party Fingerprinting Allow: Encrypt Connections enabled (HTTPS), Scripts] (yes/no)
Yes

Does the site function as expected when Shields are turned off? (yes/no)
No

Is there a specific Shields configuration that causes the site to break? If so, tell us that configuration. (yes/no)
No. It’s broken in all possible settings.

Does the site function as expected when using Chrome? (yes/no)
Yes

What Operating System and Brave version/Build are you using when you encounter the issue?(See the About Brave page in the main menu)
Version 0.67.125 Chromium: 76.0.3809.100 (Official Build) (64-bit)

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