From 0ab5abf6a184f5333e304b8d4c533f956220c6cc Mon Sep 17 00:00:00 2001
From: Charles Lyding <19598772+clydin@users.noreply.github.com>
Date: Thu, 13 Nov 2025 12:04:59 -0500
Subject: [PATCH] refactor(@angular/build): remove deprecated browser-level
 isolate option

This commit removes the deprecated `isolate` option from the browser-level configuration for the Vitest runner.

The `browser.isolate` option has been deprecated in Vitest. Test isolation should now be controlled at the test level, which is already the default behavior. This change aligns the builder with the latest Vitest practices and removes a deprecated setting.
---
 .../src/builders/unit-test/runners/vitest/browser-provider.ts    | 1 -
 1 file changed, 1 deletion(-)

diff --git a/packages/angular/build/src/builders/unit-test/runners/vitest/browser-provider.ts b/packages/angular/build/src/builders/unit-test/runners/vitest/browser-provider.ts
index da1827790794..7eed077fc03c 100644
--- a/packages/angular/build/src/builders/unit-test/runners/vitest/browser-provider.ts
+++ b/packages/angular/build/src/builders/unit-test/runners/vitest/browser-provider.ts
@@ -117,7 +117,6 @@ export async function setupBrowserConfiguration(
     provider,
     headless,
     ui: !headless,
-    isolate: debug,
     viewport,
     instances: browsers.map((browserName) => ({
       browser: normalizeBrowserName(browserName),