d118d09aba13ece71181dbb70e114f1dc77d4ee3
## Reproducer 1. `pnpm exec nx serve portal-shell` (source-locale dev server, no `--localize`). 2. Open `http://localhost:4200/`, the EN home page renders. 3. Click the locale switcher's **Français** entry in the footer. Browser navigates to `/fr/`. The Angular CLI dev server applies its SPA fallback and serves the same source `index.html`. The source bundle boots with `<base href="/">`, the router tries to match the URL `/fr/`, finds no route, and rejects the bootstrap promise: ``` ERROR RuntimeError: NG04002: Cannot match any routes. URL Segment: 'fr' ``` ## Fix Add a `{ path: '**', redirectTo: '' }` catch-all to [`app.routes.ts`](apps/portal-shell/src/app/app.routes.ts). Unknown paths now bounce to home gracefully. ## Why this doesn't break production Production builds with `--localize` emit one bundle per locale, each with its own `<base href="/{locale}/">`. The router never sees the locale segment — `/fr/foo` is normalised to `foo` before route matching, hitting the bundle's `foo` route. The wildcard only fires when **no** declared route matches, which is exactly what we want for genuine 404 paths in either mode. ## What this does NOT fix The locale switcher's underlying dev-mode limitation stands: under `nx serve` there is no per-locale bundle, so switching to FR from dev mode can only land back on the source-locale bundle. The fix turns the ugly bootstrap error into a silent bounce to home, so the dev iteration is no longer interrupted — but full locale switching still requires the production build (`nx run portal-shell:serve-static` or a real deploy). This matches the limitation already documented in PR #95. ## Test plan - [x] `pnpm exec nx run-many -t lint test build --projects=portal-shell` — green (40 / 40 specs unchanged). - [ ] Manual `nx serve` + click Français → URL becomes `/fr/`, page bounces back to `/` with no console error. - [ ] Manual prod build + serve-static, `/fr/` → loads FR bundle as before, no regression. - [ ] Manual prod build + serve-static, `/fr/does-not-exist` → router-level 404 catch redirects to `/fr/` (home), no NG04002. --------- Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr> Reviewed-on: #96
Documentation index
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