In my application using Angular 19 (and ASP.NET Core 8 for the back-end), I have configured my Core module to get the XSRF cookie from the back-end on app initialization : import { inject, NgModule, provideAppInitializer } from '@angular/core'; import { CommonModule } from '@angular/common'; import { provideHttpClient, withInterceptors, withXsrfConfiguration } from '@angular/common/http'; import { tokenInterceptor } from './interceptors/token.interceptor'; import { AuthenticationService } from './services/authentication.service'; export function appInitilizerCheckTokenValidity(): Promise<void> { const authService = inject(AuthenticationService); return authService.checkTokenValidity().then( _isValid => {}, () => {} ); } export function appInitilizerGetXsrfToken(): Promise<any> { const authService = inject(AuthenticationService); return authService.xsrfToken().then( _ => {}, () => {} ) } @NgModule({ declarations: [], imports: [ CommonModule ], providers: [ provideAppInitializer(() => appInitilizerCheckTokenValidity()), provideAppInitializer(() => appInitilizerGetXsrfToken()), provideHttpClient(withXsrfConfiguration({cookieName: 'XSRF-TOKEN', headerName: 'X-XSRF-TOKEN'})), ] }) export class CoreModule { } The xsrfToken() API looks like this : xsrfToken(): Promise<any> { let url = `${this.baseXsrfUrl}/xsrf`; return firstValueFrom(this.http.get<{elment:any}>(url)); } And the API in my back-end looks like this : using Microsoft.AspNetCore.Http; using Microsoft.AspNetCore.Mvc; namespace AmazixWeb.Controllers { [Route("api/[controller]")] [ApiController] public class XsrfController : ControllerBase { [HttpGet("xsrf")] public IActionResult XSRFToken() { var csrfToken = Guid.NewGuid().ToString(); Response.Cookies.Append("XSRF-TOKEN", csrfToken, new CookieOptions { HttpOnly = false, SameSite = SameSiteMode.None, Secure = true }); return Ok(); } } } On initializaion the get request to collect the XSRF cookie works fine, I receive this kind of response : At this moment Angular should take the XSRF-TOKEN cookie and place it in every headers of a POST, PUT or DELETE request (header name : X-XSRF-TOKEN) But when I make a new POST request (a POST request to login for instance), he X-XSRF-TOKEN is missing. See example below : I don't know why the X-XSRF-TOKEN header is no automatically added in the POST headers. Can someone help me please ? Continue reading...