Mastodon streaming endpoint returns invalid status code

Mastofe cannot connect to the streaming endpoint, browsers give the following error:

index.js:4 WebSocket connection to 'wss://letsalllovela.in/api/v1/streaming/?stream=user&access_token=REDACTED' failed: Error during WebSocket handshake: Unexpected response code: 200
value @ index.js:4
value @ index.js:9
n.emit @ events.js:84
a.onBackoff_ @ backoff.js:53