1 files changed, 38 insertions, 0 deletions
diff --git a/packages/integrations/node/test/preview-headers.test.js b/packages/integrations/node/test/preview-headers.test.js
new file mode 100644
index 000000000..3fd9d0508
--- /dev/null
+++ b/packages/integrations/node/test/preview-headers.test.js
@@ -0,0 +1,38 @@
+import * as assert from 'node:assert/strict';
+import { after, before, describe, it } from 'node:test';
+import nodejs from '../dist/index.js';
+import { loadFixture } from './test-utils.js';
+
+describe('Astro preview headers', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+	let devPreview;
+	const headers = {
+		astro: 'test',
+	};
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: './fixtures/preview-headers/',
+			output: 'server',
+			adapter: nodejs({ mode: 'standalone' }),
+			server: {
+				headers,
+			},
+		});
+		await fixture.build();
+		devPreview = await fixture.preview();
+	});
+
+	after(async () => {
+		await devPreview.stop();
+	});
+
+	describe('Preview Headers', () => {
+		it('returns custom headers for valid URLs', async () => {
+			const result = await fixture.fetch('/');
+			assert.equal(result.status, 200);
+			assert.equal(Object.fromEntries(result.headers).astro, headers.astro);
+		});
+	});
+});