Blazor jwt from client to server

Mate, you also need code on the server to validate the bearer token in your request header on each request.

Try this:

[Route("api/[controller]")]
[Authorize]
public class AutorizedController: Controller

  public void ConfigureServices(IServiceCollection services)
    {
       services.AddIdentityCore<IdentityUser>()
  .AddEntityFrameworkStores<StoreContext>();

    services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
  .AddJwtBearer(cfg =>
  {
    cfg.TokenValidationParameters = new TokenValidationParameters()
    {
      ValidateIssuer = true,
      ValidIssuer = _config["Security:Tokens:Issuer"],
      ValidateAudience = true,
      ValidAudience = _config["Security:Tokens:Audience"],
      ValidateIssuerSigningKey = true,
      IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_config["Security:Tokens:Key"])),

    };
  });

      services.AddDbContext<StoreContext>();
      services.AddMvc();
    }