SignalR core JWT authentication not working - .net-core

Question

I'm trying to authenticate with JWT in .NET Core 2.2 with SignalR. I don't get an error message that it doesn't work on either the server or the client-side. I have set breakpoints on the server-side where the authentication is supposed to happen. Does anyone have any idea why it's not working? The JWT is built with an asymmetric signature algorithm.
This is how I generate the JWT:
var utcNow = DateTime.UtcNow;
using (RSA privateRsa = RSA.Create())
{
privateRsa.FromXmlFile(Path.Combine(HttpContext.Current.Server.MapPath("~"),
"Keys",
ConfigurationManager.AppSettings["PrivateKey"]
));
var privateKey = new RsaSecurityKey(privateRsa);
SigningCredentials signingCredentials = new SigningCredentials(privateKey, SecurityAlgorithms.RsaSha256);
var claims = new Claim[]
{
new Claim(JwtRegisteredClaimNames.Sub, user.ID.ToString()),
//new Claim(JwtRegisteredClaimNames.NameId, user.FullName),
new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()),
new Claim(JwtRegisteredClaimNames.Iat, utcNow.ToString())
};
var jwt = new JwtSecurityToken(
signingCredentials: signingCredentials,
claims: claims,
notBefore: utcNow,
expires: utcNow.AddMonths(12),
audience: "https://pacsonweb.com",
issuer: "PACSonWEB3 App"
);
return new JwtSecurityTokenHandler().WriteToken(jwt);
This is how i'm authenticating on the server side :
RsaSecurityKey signingKey = new RsaSecurityKey(publicRsa);
services.AddAuthentication(options =>
{
options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(config =>
{
config.RequireHttpsMetadata = true;
config.SaveToken = true;
config.TokenValidationParameters = new TokenValidationParameters()
{
IssuerSigningKey = signingKey,
ValidateAudience = true,
ValidAudience = this.Configuration["Tokens:Audience"],
ValidateIssuer = true,
ValidIssuer = this.Configuration["Tokens:Issuer"],
ValidateLifetime = true,
ValidateIssuerSigningKey = true
};
});
This is how I send the JWT with SignalR on the client side:
hubConnection = new HubConnectionBuilder().WithUrl(hubUrl, (opts) =>
{
opts.AccessTokenProvider = () => Globals.GetJWTToken();
opts.HttpMessageHandlerFactory = (message) =>
{
if (message is HttpClientHandler clientHandler)
{
// bypass SSL certificate
clientHandler.ServerCertificateCustomValidationCallback += CheckCertificate;
clientHandler.CheckCertificateRevocationList = false;
}
return message;
};
}).Build();