ClientWebSocket on .NET Core does not provide the upgrade request errors in the exception details as it does on the .NET Framework.

[AmandaSilver]

Repro Code:

var client = new ClientWebSocket();
client.ConnectAsync(new Uri("wss://speech.platform.bing.com/speech/recognition/interactive/cognitiveservices/v1"), CancellationToken.None).GetAwaiter().GetResult();

[karelz]

Duplicate of #25918