From 9233e5ef471e851a173827df7f74a581381c6373 Mon Sep 17 00:00:00 2001
From: Alan Agius <alanagius@google.com>
Date: Tue, 8 Oct 2024 07:40:06 +0000
Subject: [PATCH] fix(@angular/build): show error message when error stack is
 undefined

Handle cases where the error stack is missing by displaying a relevant message.

Closes #28590
---
 .../angular/build/src/utils/server-rendering/prerender.ts     | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/angular/build/src/utils/server-rendering/prerender.ts b/packages/angular/build/src/utils/server-rendering/prerender.ts
index c82208c417..2b65928ac5 100644
--- a/packages/angular/build/src/utils/server-rendering/prerender.ts
+++ b/packages/angular/build/src/utils/server-rendering/prerender.ts
@@ -334,7 +334,9 @@ async function getAllRoutes(
     assertIsError(err);
 
     return {
-      errors: [`An error occurred while extracting routes.\n\n${err.stack}`],
+      errors: [
+        `An error occurred while extracting routes.\n\n${err.stack ?? err.message ?? err.code ?? err}`,
+      ],
       serializedRouteTree: [],
     };
   } finally {