ci(e2e): run Playwright from the prebuilt image instead of downloading browsers (refs #73)

The verify-e2e lane downloaded ~150 MB of Chromium (npx playwright install) on
every verify-stack run. Use the official mcr.microsoft.com/playwright image with
browsers pre-baked; npm install still pins @playwright/test from tests/e2e, and
the image tag is kept in lockstep with that version. Verified the exact
create + docker cp + start flow launches the baked browser with no download.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -23,6 +23,16 @@ jobs:
       - uses: https://github.com/actions/setup-dotnet@v4
         with:
           dotnet-version: '10.0.x'
+      # Cache the NuGet package store so each .NET job restores from disk, not the network. There are
+      # no lock files (so setup-dotnet's built-in cache doesn't apply); key on the project files. @v3
+      # avoids the GHES guard that breaks @v4 on Gitea (gitea-actions-gotchas.md); cache is best-effort
+      # — a miss just restores from the network. See issue #73.
+      - uses: https://github.com/actions/cache@v3
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
       - run: make lint
 
   build:
@@ -32,6 +42,12 @@ jobs:
       - uses: https://github.com/actions/setup-dotnet@v4
         with:
           dotnet-version: '10.0.x'
+      - uses: https://github.com/actions/cache@v3
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
       - run: make build
 
   unit:
@@ -41,6 +57,12 @@ jobs:
       - uses: https://github.com/actions/setup-dotnet@v4
         with:
           dotnet-version: '10.0.x'
+      - uses: https://github.com/actions/cache@v3
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
       - run: make unit
 
   # Frontend (Nx/Angular) lane: install with pnpm, then Nx lint + test + build.
@@ -64,6 +86,12 @@ jobs:
       - uses: https://github.com/actions/setup-dotnet@v4
         with:
           dotnet-version: '10.0.x'
+      - uses: https://github.com/actions/cache@v3
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
       - run: make mutation
       # Publish the Stryker HTML reports. `if: always()` uploads them even when the
       # ratchet fails — that is exactly when you want to inspect the survivors.

apps/self-service/src/app/app.config.spec.ts

@@ -0,0 +1,65 @@
+import { provideHttpClient, withInterceptors } from '@angular/common/http';
+import { HttpTestingController, provideHttpClientTesting } from '@angular/common/http/testing';
+import { TestBed } from '@angular/core/testing';
+import { BffApiV1Service } from 'api-client';
+import { authInterceptor } from 'auth';
+import { AbstractSecurityStorage, ConfigurationService } from 'angular-auth-oidc-client';
+import { SECURE_API_ROUTES } from './app.config';
+
+// Guards the DigiD token wiring end-to-end. The api-client calls the BFF with RELATIVE URLs, and the
+// angular-auth-oidc-client interceptor attaches the token only when `req.url` starts with a configured
+// secureRoute. A regression to an absolute origin (as once shipped) makes the relative URL never match,
+// so the submit goes out unauthenticated and fails silently. This drives the REAL interceptor and the
+// REAL api-client against the REAL production route value (SECURE_API_ROUTES); only the config source
+// and the token storage are faked, so the assertion turns on the actual route-matching.
+describe('self-service DigiD token wiring', () => {
+  let http: HttpTestingController;
+  let bff: BffApiV1Service;
+  const token = 'digid-access-token';
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [
+        provideHttpClient(withInterceptors([authInterceptor()])),
+        provideHttpClientTesting(),
+        {
+          provide: ConfigurationService,
+          useValue: {
+            hasAtLeastOneConfig: () => true,
+            getAllConfigurations: () => [{ configId: 'digid', secureRoutes: SECURE_API_ROUTES }],
+          },
+        },
+        {
+          // A signed-in session: the storage the interceptor's token lookup reads from.
+          provide: AbstractSecurityStorage,
+          useValue: {
+            read: () => JSON.stringify({ authzData: token, authnResult: { id_token: 'id-token' } }),
+            write: () => undefined,
+            remove: () => undefined,
+            clear: () => undefined,
+          },
+        },
+      ],
+    });
+    http = TestBed.inject(HttpTestingController);
+    bff = TestBed.inject(BffApiV1Service);
+  });
+
+  afterEach(() => http.verify());
+
+  it('attaches the bearer token to the relative self-service BFF call', () => {
+    bff.postSelfServiceRegistrations().subscribe();
+
+    const req = http.expectOne('/self-service/registrations');
+    expect(req.request.headers.get('Authorization')).toBe(`Bearer ${token}`);
+    req.flush({ registrationId: 'reg-1', status: 'Ingediend' });
+  });
+
+  it('leaves the anonymous openbaar register call unauthenticated', () => {
+    bff.getOpenbaarRegister().subscribe();
+
+    const req = http.expectOne((r) => r.url === '/openbaar/register');
+    expect(req.request.headers.has('Authorization')).toBe(false);
+    req.flush([]);
+  });
+});

apps/self-service/src/app/app.config.ts

@@ -13,12 +13,17 @@ export interface RuntimeConfig {
   authority: string;
 }
 
+/**
+ * Route prefixes whose requests carry the DigiD token. These MUST match the **relative** URLs the
+ * api-client actually calls (same-origin via the nginx proxy) — the interceptor matches on `req.url`,
+ * which stays relative, so an absolute origin would never match and the token would go unattached.
+ * `/openbaar/` is deliberately excluded: it is the anonymous public register.
+ */
+export const SECURE_API_ROUTES = ['/self-service/'];
+
 /**
  * Build the app providers from runtime config. `redirectUrl` is the app's own origin (where Keycloak
- * redirects back). The app is served same-origin as the BFF (nginx proxies /self-service + /openbaar),
- * so the api-client uses **relative** URLs — hence `secureRoutes` is the relative `/self-service/`
- * prefix (the guarded BFF route), not the origin: the interceptor matches on `req.url`, which stays
- * relative, so an origin would never match and the token would not be attached.
+ * redirects back). `secureRoutes` uses {@link SECURE_API_ROUTES} — relative prefixes, not the origin.
  */
 export function appConfig(runtime: RuntimeConfig): ApplicationConfig {
   const origin = typeof window !== 'undefined' ? window.location.origin : '/';
@@ -30,7 +35,7 @@ export function appConfig(runtime: RuntimeConfig): ApplicationConfig {
       provideDigiadAuth({
         authority: runtime.authority,
         redirectUrl: origin,
-        secureRoutes: ['/self-service/'],
+        secureRoutes: SECURE_API_ROUTES,
       }),
     ],
   };

apps/self-service/src/app/registration/registration-page.html

@@ -8,6 +8,11 @@
       </p>
     } @else {
       <p utrecht-paragraph>U bent ingelogd met BSN {{ bsn() }}.</p>
+      @if (failed()) {
+        <p utrecht-paragraph role="alert">
+          Er ging iets mis bij het indienen van uw registratie. Probeer het opnieuw.
+        </p>
+      }
       <button
         utrecht-button
         appearance="primary-action-button"

apps/self-service/src/app/registration/registration-page.spec.ts

@@ -1,6 +1,6 @@
 import { signal } from '@angular/core';
 import { fireEvent, render, screen } from '@testing-library/angular';
-import { of } from 'rxjs';
+import { of, throwError } from 'rxjs';
 import { AuthService } from 'auth';
 import { BffApiV1Service } from 'api-client';
 import { axe } from 'vitest-axe';
@@ -43,6 +43,19 @@ describe('RegistrationPage', () => {
     expect(await screen.findByText(/ontvangen/i)).toBeTruthy();
   });
 
+  it('shows an error and keeps the submit available when the BFF call fails', async () => {
+    const { post, providers: p } = providers(vi.fn().mockReturnValue(throwError(() => new Error('BFF rejected'))));
+    await render(RegistrationPage, { providers: p });
+
+    fireEvent.click(screen.getByRole('button', { name: /indienen/i }));
+
+    expect(post).toHaveBeenCalledTimes(1);
+    // The failure is surfaced (not swallowed), the confirmation is not shown, and the user can retry.
+    expect(await screen.findByRole('alert')).toBeTruthy();
+    expect(screen.queryByText(/ontvangen/i)).toBeNull();
+    expect(screen.getByRole('button', { name: /indienen/i })).toBeTruthy();
+  });
+
   it('has no WCAG 2.1 AA violations on the submit page', async () => {
     // The portal is Dutch; the real index.html sets lang. Set it here so the document-level
     // html-has-lang rule reflects the app, not the bare jsdom document.

apps/self-service/src/app/registration/registration-page.ts

@@ -21,13 +21,22 @@ export class RegistrationPage {
   protected readonly submitting = signal(false);
   protected readonly reference = signal<string | undefined>(undefined);
   protected readonly submitted = signal(false);
+  protected readonly failed = signal(false);
 
   submit(): void {
     this.submitting.set(true);
-    this.bff.postSelfServiceRegistrations().subscribe((accepted: SubmitAccepted) => {
-      this.reference.set(accepted.registrationId);
-      this.submitted.set(true);
-      this.submitting.set(false);
+    this.failed.set(false);
+    this.bff.postSelfServiceRegistrations().subscribe({
+      next: (accepted: SubmitAccepted) => {
+        this.reference.set(accepted.registrationId);
+        this.submitted.set(true);
+        this.submitting.set(false);
+      },
+      // Surface the failure instead of swallowing it: re-enable the button so the user can retry.
+      error: () => {
+        this.failed.set(true);
+        this.submitting.set(false);
+      },
     });
   }
 }

docs/frontend-decisions.md

@@ -85,12 +85,14 @@ with the submit form (S-08c, #67); any deviation from NL DS will be recorded her
 - **Runtime config.** The app fetches `/config.json` before bootstrap (`main.ts`); `appConfig` is a
   factory. The dev default (`public/config.json`) points at `localhost:8180`; the Docker image bakes
   the compose value (`keycloak:8080`). One build, per-environment OIDC authority.
-- **e2e runs inside the compose network.** `infra/run-e2e-check.sh` runs Playwright in a `node`
-  container on `cg`, so the browser reaches Keycloak as `keycloak:8080` — the **same issuer** the BFF
-  validates against (resolves the browser-vs-container mismatch, ADR-0010). Chromium is installed at
-  runtime, so there's no Playwright-image-version pinning to keep in sync. The spec is copied in
-  (`docker cp`), not mounted, so it leaves nothing root-owned on the host. Wired as `verify-e2e` in
-  the `verify-stack` CI job.
+- **e2e runs inside the compose network.** `infra/run-e2e-check.sh` runs Playwright in a container on
+  `cg`, so the browser reaches Keycloak as `keycloak:8080` — the **same issuer** the BFF validates
+  against (resolves the browser-vs-container mismatch, ADR-0010). It uses the official
+  `mcr.microsoft.com/playwright:<version>` image with browsers pre-baked, rather than downloading
+  ~150 MB of Chromium on every run (issue #73) — the image tag is kept in lockstep with
+  `tests/e2e/package.json`'s `@playwright/test` version. The spec is copied in (`docker cp`), not
+  mounted, so it leaves nothing root-owned on the host. Wired as `verify-e2e` in the `verify-stack`
+  CI job.
 - **e2e treats the portal origin as secure.** In-network the portal is served over plain HTTP on a
   non-localhost origin (`http://self-service`), which is **not a secure context**, so Web Crypto
   (`crypto.subtle`) is unavailable. angular-auth-oidc-client needs it for the PKCE code challenge, so

infra/run-e2e-check.sh

@@ -3,10 +3,14 @@
 # Walking-skeleton e2e (S-08d) against an ALREADY-RUNNING full stack: drive the self-service portal
 # in a real browser through mock-DigiD login → submit → confirmation (login → BFF → domain).
 #
-# Runs Playwright INSIDE the compose network (a node container on `cg`), so the browser reaches
+# Runs Playwright INSIDE the compose network (a container on `cg`), so the browser reaches
 # Keycloak by service name (keycloak:8080) — the same authority the BFF validates against, so the
 # token issuer matches (ADR-0010). The spec is copied into the container (docker cp), not mounted,
 # so it leaves no root-owned files on the host. The caller owns stack bring-up + teardown.
+#
+# Uses the official Playwright image with browsers pre-baked, instead of downloading ~150 MB of
+# Chromium on every run (issue #73). The image tag MUST match tests/e2e/package.json's
+# @playwright/test version — bump both together.
 set -euo pipefail
 
 here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
@@ -19,7 +23,7 @@ echo ">> running Playwright e2e on network $net against http://self-service"
 
 cid="$(docker create --network "$net" -w /e2e --ipc=host \
   -e SELF_SERVICE_URL=http://self-service \
-  node:24 sh -c 'npm install --no-audit --no-fund && npx playwright install --with-deps chromium && npx playwright test')"
+  mcr.microsoft.com/playwright:v1.61.1-noble sh -c 'npm install --no-audit --no-fund && npx playwright test')"
 trap 'docker rm -f "$cid" >/dev/null 2>&1 || true' EXIT
 docker cp "$root/tests/e2e/." "$cid:/e2e" >/dev/null
 docker start -a "$cid"