Root cause
Fix (recommended)
Reduce auth cookie size
Use tokens that don’t bloat headers
IIS-specific mitigations (if you still need more room)
Verify no unnecessary cookies are sent
Minimal ABP-side checklist
public class MyClaimsContributor : IAbpClaimsPrincipalContributor
{
public Task ContributeAsync(AbpClaimsPrincipalContributorContext context)
{
var identity = context.ClaimsPrincipal.Identities.First();
// Remove or avoid adding large/duplicate claims here
return Task.CompletedTask;
}
}
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Why this happens
Fixes (pick one or combine)
Reduce the amount of data stored in the cookie
Switch to reference tokens (prevent large cookies to the frontend)
Increase header limits on your front-end/reverse proxy if absolutely necessary
Ensure antiforgery/cookie settings don’t add extra cookies unnecessarily
Practical steps to reduce cookie size in ABP
IIS-specific mitigation (optional)
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<div id="lpx-wrapper" class="lpx-layout lpx-layout--side">
<MainHeader />
<div class="lpx-container">
<SideMenu />
<div class="lpx-content-container">
<CustomSubmenu />
<div class="lpx-topbar-container">
<div class="lpx-topbar"><Breadcrumbs /></div>
</div>
<div class="lpx-content-wrapper">
<div class="lpx-content">
<CustomPageActions />
@Body
</div>
</div>
<footer><Footer /></footer>
</div>
</div>
<MobileNavbar />
</div>
No estás usando los componentes de layout del tema
El layout registrado no es el de LeptonX o se reemplazó completamente
Configure<LeptonXThemeBlazorOptions>(options =>
{
options.Layout = typeof(Volo.Abp.AspNetCore.Components.Web.LeptonXTheme.Components
.ApplicationLayout.SideMenu.SideMenuLayout);
// o tu CustomApplicationLayout, pero conservando estructura + clases LeptonX
});
Falta del bundle de estilos del tema (Blazor WASM/WebApp con Global Assets)
CSS aislado que sobreescribe variables/clases del tema
Mezcla de namespaces de TopMenu y SideMenu
¿Debo agregar un CSS al componente?
Checklist rápido:
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What to request
How to submit the request
Interim workaround (minimal replacement)
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A) Use the theme’s replaceable component hook to customize the layout header/toolbar area where the collapse icon lives
Example registration (in your ThemeModule or a shared module initialized at app bootstrap):
import { NgModule } from '@angular/core';
import { ReplaceableComponentsService } from '@abp/ng.core';
import { eThemeLeptonXComponents } from '@abp/ng.theme.lepton-x'; // adjust import to your version
import { AccessibleSidebarToggleComponent } from './accessible-sidebar-toggle.component';
@NgModule({
declarations: [AccessibleSidebarToggleComponent],
exports: [AccessibleSidebarToggleComponent]
})
export class ThemeCustomizationModule {
constructor(rc: ReplaceableComponentsService) {
rc.add({
key: eThemeLeptonXComponents.Navbar, // or the exact header/toolbar key used by your layout
component: AccessibleSidebarToggleComponent,
});
}
}
B) Implement the toggle component by binding to LeptonX/Theme Shared layout state (do not re-implement state)
Example component:
import { Component, HostListener, ChangeDetectionStrategy } from '@angular/core';
import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';
// Layout service location may differ by version; it’s typically in @abp/ng.theme.shared or @abp/ng.theme.lepton-x
import { LayoutService } from '@abp/ng.theme.shared'; // adjust import path to your version
@Component({
selector: 'app-accessible-sidebar-toggle',
template: `
<button
type="button"
class="menu-collapse-icon"
[attr.aria-label]="(isCollapsed$ | async) ? 'Expand navigation' : 'Collapse navigation'"
[attr.aria-expanded]="!(isCollapsed$ | async)"
(click)="toggleSidebar()"
(keydown)="onKeydown($event)"
>
<i class="bi" [ngClass]="(isCollapsed$ | async) ? 'bi-filter-right' : 'bi-filter-left'"></i>
</button>
`,
changeDetection: ChangeDetectionStrategy.OnPush,
})
export class AccessibleSidebarToggleComponent {
// Expose collapsed state from the theme’s layout service
isCollapsed$: Observable<boolean> = this.layout.state$.pipe(map(s => !!s?.sidebarCollapsed));
constructor(private layout: LayoutService) {}
toggleSidebar(): void {
const cur = this.layout.getState()?.sidebarCollapsed ?? false;
this.layout.setState({ sidebarCollapsed: !cur });
}
onKeydown(e: KeyboardEvent): void {
if (e.key === 'Enter' || e.key === ' ') {
e.preventDefault();
this.toggleSidebar();
}
}
// Optional: expand on focus to mirror hover
@HostListener('focusin')
onFocusIn(): void {
const cur = this.layout.getState()?.sidebarCollapsed ?? false;
if (cur) {
this.layout.setState({ sidebarCollapsed: false });
}
}
}
Notes:
C) Keep hover-trigger behavior
D) Where to place the toggle
E) Persisting user choice (optional)
// On app init
const saved = localStorage.getItem('sidebarCollapsed') === 'true';
layout.setState({ sidebarCollapsed: saved });
// When state changes
layout.state$.subscribe(s => localStorage.setItem('sidebarCollapsed', String(!!s?.sidebarCollapsed)));
F) Minimal template-only alternative
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A) Build and place Angular into Host/wwwroot
B) Ensure Host serves static files and SPA fallback In YourProjectHttpApiHostModule.cs (or Program.cs if using minimal hosting), inside OnApplicationInitialization (order matters):
public override void OnApplicationInitialization(ApplicationInitializationContext context)
{
var app = context.GetApplicationBuilder();
var env = context.GetEnvironment();
app.UseAbpRequestLocalization();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseAbpSecurityHeaders();
app.UseHttpsRedirection();
app.UseCorrelationId();
// Serve SPA static files (Angular build in wwwroot)
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();
app.UseAbpOpenIddictValidation();
app.UseAuthorization();
app.UseSwagger();
app.UseAbpSwaggerUI(options =>
{
options.SwaggerEndpoint("/swagger/v1/swagger.json", "API");
});
app.UseAuditing();
app.UseAbpSerilogEnrichers();
app.UseConfiguredEndpoints();
// SPA fallback: return index.html for non-file, non-API requests
app.Use(async (ctx, next) =>
{
await next();
if (ctx.Response.StatusCode == 404 &&
!System.IO.Path.HasExtension(ctx.Request.Path.Value) &&
!ctx.Request.Path.Value.StartsWith("/api", StringComparison.OrdinalIgnoreCase))
{
ctx.Request.Path = "/index.html";
ctx.Response.StatusCode = 200;
await next();
}
});
}
Alternative controller-based redirect (older practice that also works on Azure App Service):
public class HomeController : AbpController
{
public ActionResult Index()
{
return Redirect("~/index.html" + HttpContext.Request.QueryString);
}
}
C) Azure App Service specifics
app.Use(async (ctx, next) =>
{
ctx.Request.Scheme = "https";
await next();
});
D) Unified domain configuration Set host appsettings.json consistently for single-domain SPA+API:
E) Angular environment configuration environment.prod.ts:
F) IdentityServer client records In DbMigrator appsettings (or wherever you seed IdentityServer clients), ensure the SPA client:
G) Why you were seeing the API login page If index.html isn’t found or served, requests fall through to API endpoints (e.g., /account/login via MVC/Identity) and you see the API login instead of the Angular SPA. The SPA fallback middleware and correct placement of index.html fix this.
H) Multitenancy with subdomains (optional) If you run tenants on subdomains on the same app service and still serve SPA from the host:
Configure<AbpTenantResolveOptions>(options =>
{
options.AddDomainTenantResolver("{0}.your-app.azurewebsites.net");
});
Configure<AbpAccountOptions>(options =>
{
options.IsTenantMultiDomain = true;
options.GetTenantDomain = (httpContext, info) =>
Task.FromResult(string.IsNullOrWhiteSpace(info.Name)
? "https://your-app.azurewebsites.net"
: $"https://{info.Name}.your-app.azurewebsites.net");
});
Configure<AbpAccountIdentityServerOptions>(options =>
{
options.IsTenantMultiDomain = true;
options.GetTenantDomain = (httpContext, ctx, info) =>
Task.FromResult(string.IsNullOrWhiteSpace(info.Name)
? "https://your-app.azurewebsites.net"
: $"https://{info.Name}.your-app.azurewebsites.net");
});
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A. Where to add Output Caching
B. Service registration (HttpApi.Host) In Program.cs (or Startup), register OutputCache policies alongside ABP’s standard pipeline:
// Program.cs (HttpApi.Host) builder.Services.AddOutputCache(options => { options.DefaultExpirationTimeSpan = TimeSpan.FromSeconds(30); options.AddPolicy("Default", policy => policy .Expire(TimeSpan.FromSeconds(120)) .SetVaryByHeader("Authorization")); });
// keep your existing ABP, authentication and CORS configurations here
C. Middleware order (HttpApi.Host) Add UseOutputCache in the correct order. For .NET 8, the typical order is:
var app = builder.Build();
// ... existing ABP middlewares app.UseRouting(); app.UseCors(); app.UseAuthentication(); app.UseAuthorization(); app.UseAbpRequestLocalization();
// IMPORTANT: enable output caching here app.UseOutputCache();
app.UseUnitOfWork(); app.UseAuditing();
// ABP maps endpoints here app.UseConfiguredEndpoints();
app.Run();
D. Use OutputCache attributes on controllers (in .HttpApi) Continue using attributes on your controllers (in the .HttpApi project). Example:
[OutputCache( PolicyName = "Default", VaryByRouteValueNames = new[] { nameof(id) })] [Authorize] // if required [ApiController] [Route("api/my-endpoint")] public class MyController : ControllerBase { [HttpGet("{id}")] public async Task<MyDto> GetAsync(Guid id) { ... } }
For query variants:
[OutputCache( PolicyName = "Default", VaryByQueryKeys = new[] { nameof(FilterInputDto.Id), nameof(FilterInputDto.SearchText), nameof(FilterInputDto.IsActive), nameof(FilterInputDto.Sorting) })]
E. Verifying headers and behavior
F. Why it didn’t work when controllers were in .HttpApi
G. Why you got 401 when moving controllers to .Web
H. Common pitfalls to double-check
I. Is Output Caching officially supported under .HttpApi?
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public class MyDataSeedContributor : IDataSeedContributor, ITransientDependency
{
private readonly ILocalizationTextManager _textManager;
private readonly ICurrentTenant _currentTenant;
public MyDataSeedContributor(ILocalizationTextManager textManager, ICurrentTenant currentTenant)
{
_textManager = textManager;
_currentTenant = currentTenant;
}
public async Task SeedAsync(DataSeedContext context)
{
using (_currentTenant.Change(context?.TenantId))
{
// Portuguese example
await _textManager.SetAsync("LeptonX", "FilterMenu", "pt-BR", "Filtrar menu");
// Add other languages as needed
await _textManager.SetAsync("LeptonX", "FilterMenu", "en", "Filter menu");
}
}
}
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Cause
Fix
public override void OnApplicationInitialization(ApplicationInitializationContext context)
{
var app = context.GetApplicationBuilder();
var env = context.GetEnvironment();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseAbpRequestLocalization();
app.UseStaticFiles(); // 1: physical wwwroot
app.UseAbpStaticFiles(); // 2: embedded static files from ABP modules
app.UseRouting();
app.UseAuthentication();
app.UseJwtTokenMiddleware();
app.UseAbpClaimsMap();
app.UseAuthorization();
app.UseAuditing();
app.UseConfiguredEndpoints();
}
public class DocsThemeGlobalContributor : BundleContributor
{
public override void ConfigureBundle(BundleConfigurationContext context)
{
var style = context.Files;
// styles
style.AddIfNotContains("/libs/@fortawesome/fontawesome-free/css/all.min.css");
var script = context.Files;
// scripts
script.AddIfNotContains("/libs/jquery/jquery.js");
script.AddIfNotContains("/libs/select2/js/select2.full.min.js");
script.AddIfNotContains("/libs/moment/moment.js");
// add any i18n files you actually use:
// script.AddIfNotContains("/libs/select2/js/i18n/en.js");
}
}
That’s Font Awesome not loading. Once /libs/@fortawesome/fontawesome-free/webfonts/... are served correctly (steps 1–3), the icons will render.
Quick checklist for your screenshots
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A) Recommended: Use Releases/Tags as versions
B) If you must use Branches as versions
Additional checks
Quick apply to your screenshots
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