From 29297ecc7c56db1f7e9258be6282cc2c91869880 Mon Sep 17 00:00:00 2001
From: Alan Agius <17563226+alan-agius4@users.noreply.github.com>
Date: Mon, 6 Jul 2026 12:35:06 +0000
Subject: [PATCH] fix(@angular/ssr): replace all route parameters when
 resolving relative redirects

When resolving a relative `redirectTo` property for a route with multiple path parameters (e.g. `:param1/:param2`), only the first parameter segment was being converted to `*` because a non-global regular expression was used.

This commit updates `resolveRedirectTo` to use `URL_PARAMETER_GLOBAL_REGEXP` so that all parameter placeholders in the route path are properly replaced with `*`.

Fixes #33504
---
 packages/angular/ssr/src/routes/ng-routes.ts  |  2 +-
 .../angular/ssr/test/routes/ng-routes_spec.ts | 29 +++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/packages/angular/ssr/src/routes/ng-routes.ts b/packages/angular/ssr/src/routes/ng-routes.ts
index 04f67c96d9d5..ac83aae8cd4f 100644
--- a/packages/angular/ssr/src/routes/ng-routes.ts
+++ b/packages/angular/ssr/src/routes/ng-routes.ts
@@ -547,7 +547,7 @@ function resolveRedirectTo(routePath: string, redirectTo: string): string {
   }
 
   // Resolve relative redirectTo based on the current route path.
-  const segments = routePath.replace(URL_PARAMETER_REGEXP, '*').split('/');
+  const segments = routePath.replace(URL_PARAMETER_GLOBAL_REGEXP, '*').split('/');
   segments.pop(); // Remove the last segment to make it relative.
 
   return joinUrlParts(...segments, redirectTo);
diff --git a/packages/angular/ssr/test/routes/ng-routes_spec.ts b/packages/angular/ssr/test/routes/ng-routes_spec.ts
index 1532eb337faa..e214c31eab71 100644
--- a/packages/angular/ssr/test/routes/ng-routes_spec.ts
+++ b/packages/angular/ssr/test/routes/ng-routes_spec.ts
@@ -502,6 +502,35 @@ describe('extractRoutesAndCreateRouteTree', () => {
     ]);
   });
 
+  it('should extract nested redirects with multiple path parameters', async () => {
+    setAngularAppTestingManifest(
+      [
+        {
+          path: ':param1/:param2',
+          children: [
+            {
+              path: '',
+              pathMatch: 'full',
+              redirectTo: 'thing',
+            },
+            {
+              path: 'thing',
+              component: DummyComponent,
+            },
+          ],
+        },
+      ],
+      [{ path: '**', renderMode: RenderMode.Server }],
+    );
+
+    const { routeTree, errors } = await extractRoutesAndCreateRouteTree({ url });
+    expect(errors).toHaveSize(0);
+    expect(routeTree.toObject()).toEqual([
+      { route: '/*/*', renderMode: RenderMode.Server, redirectTo: '/*/*/thing' },
+      { route: '/*/*/thing', renderMode: RenderMode.Server },
+    ]);
+  });
+
   it('should not resolve parameterized routes for SSG when `invokeGetPrerenderParams` is false', async () => {
     setAngularAppTestingManifest(
       [