...

Back/Program.cs

@@ -6,6 +6,7 @@ using Back.Services;
 using Back.Validations;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.IdentityModel.Tokens;
+using Microsoft.Net.Http.Headers;
 using Microsoft.OpenApi.Models;
 using System.Text;
 using TaxPayer.Infrastructure.Persistence;
@@ -85,6 +86,7 @@ builder.Services.AddCors(options =>
                           {
                               policy.WithOrigins("https://localhost:7224", "http://localhost:5107")
                                                   .AllowAnyHeader()
+                                                    .WithHeaders(HeaderNames.ContentType)
                                                   .AllowAnyMethod();
                           });
 });