AspNetCore.SignalR 2.1 and CORS

Question

I\'m migrating our SignalR-Service to the new AspNetCore.SignalR (2.1 preview) and now I get problems with CORS. I will never access the service from the same origin, so I n

Answer 1

If you're migrating your project to asp.net core version 3.x, you can upgrade routing from the Configure method like this:

app.UseCors("AllowCors");

app.UseEndpoints(endpoints =>
{
    endpoints.MapControllerRoute(
        name: "default",
        pattern: "{controller=Home}/{action=Index}/{id?}");

    endpoints.MapHub("/test");
});

app.UseMvc and app.UseSignalR will be replaced with app.UseEndpoints. app.UseSignalR also cannot be used anymore because:

This method is obsolete and will be removed in a future version.