I've been using the Spotify Web player via Microsoft Edge for a while now and never had any problems with it. However, recentlly I started to just get the error that I need to "enable the webplayer". It links me to a support article which describes that I need to download a media pack. This media pack however is just meant for Windows 10 N editions (these come without any codecs). On Windows 10 Home (the platform I'm using), these codecs come already preinstalled. I don't know why this isn't working, because I didn't install updates when it stopped working (I already was on the latest updates when it still worked fine). It also works fine in other browsers on the same machine (e.g. Chrome and Firefox). Also the option for media licenses in Edge is enabled.
SCRIPT12008: SCRIPT12008: WebSocket Error: Incorrect HTTP response. Status code 429, Too Many Requests HTTP400: BAD REQUEST The request could not be processed by the server due to invalid syntax. (XHR)POST - https://accounts.spotify.com/api/login
Asus ZenBook 13 UX331UN
Windows 10 Home 1903 (Build 18362.175)
Microsoft Edge 44.18362.1.0
Microsoft EdgeHTML 18.18362