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¿Cómo cambiar el código para que AddCors funcione correctamente en .Net6?

Aquí está mi clase program.cs:

 var builder = WebApplication.CreateBuilder(args); // Add services to the container. builder.Services.AddTransient<IUserService, UserService>(); builder.Services.AddTransient<IUserRepository, UserRepository>(); #region IAUECManager Database Connection builder.Services.AddDbContext<IAUECManagerDbContext>(options => { options.UseSqlServer(builder.Configuration.GetConnectionString("IAUECManagerConnectionString")); }); #endregion #region JWT Authentication //TODO Change JWT Secret Key var jwtSecretKey = "something that should be change in the future"; builder.Services.AddHttpClient(); builder.Services.AddAuthentication(option => { option.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme; option.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme; }) .AddJwtBearer(option => { option.RequireHttpsMetadata = false; option.SaveToken = true; option.TokenValidationParameters = new TokenValidationParameters { ValidateIssuerSigningKey = true, IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(jwtSecretKey)), ValidateIssuer = false, ValidateAudience = false }; }); #endregion //services.AddCors(); builder.Services.AddCors(o => o.AddPolicy("MyPolicy", builder => { builder.AllowAnyHeader() .AllowAnyMethod() .AllowAnyOrigin(); })); builder.Services.AddControllers(); // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle builder.Services.AddEndpointsApiExplorer(); builder.Services.AddSwaggerGen(); var app = builder.Build(); // Configure the HTTP request pipeline. if (app.Environment.IsDevelopment()) { app.UseSwagger(); app.UseSwaggerUI(); } app.UseCors("MyPolicy"); app.UseHttpsRedirection(); app.UseAuthentication(); app.UseAuthorization(); app.MapControllers(); app.Run();

¿Por qué cuando quiero enviar una solicitud desde ajax que está en mi proyecto de interfaz de usuario que se incluye en la misma solución con mi proyecto api, dice:

El acceso a XMLHttpRequest en 'https://localhost:7039/api/V1/Users/Register' desde el origen 'https://localhost:44323' ha sido bloqueado por la política de CORS: la respuesta a la solicitud de verificación previa no pasa la verificación de control de acceso : No hay encabezado 'Access-Control-Allow-Origin' en el recurso solicitado.

over 4 years ago · Santiago Trujillo
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