diff --git a/packages/astro/src/core/build/app.ts b/packages/astro/src/core/build/app.ts
index 614aefbdb0ca..b9cd3548d1b4 100644
--- a/packages/astro/src/core/build/app.ts
+++ b/packages/astro/src/core/build/app.ts
@@ -30,6 +30,9 @@ export class BuildApp extends BaseApp<BuildPipeline> {
 
 	async renderError(request: Request, options: RenderErrorOptions): Promise<Response> {
 		if (options.status === 500) {
+			if(options.response) {
+				return options.response;	
+			}
 			throw options.error;
 		} else {
 			return super.renderError(request, {
diff --git a/packages/integrations/node/test/assets.test.js b/packages/integrations/node/test/assets.test.js
index 0b71f94cd6ce..758026ecca19 100644
--- a/packages/integrations/node/test/assets.test.js
+++ b/packages/integrations/node/test/assets.test.js
@@ -3,6 +3,7 @@ import { after, before, describe, it } from 'node:test';
 import * as cheerio from 'cheerio';
 import nodejs from '../dist/index.js';
 import { loadFixture } from './test-utils.js';
+import { fileURLToPath } from 'node:url';
 
 describe('Assets', () => {
 	/** @type {import('./test-utils').Fixture} */
@@ -10,8 +11,10 @@ describe('Assets', () => {
 	let devPreview;
 
 	before(async () => {
+		const root = new URL('./fixtures/image/', import.meta.url);
 		fixture = await loadFixture({
-			root: './fixtures/image/',
+			root,
+			outDir: fileURLToPath(new URL('./dist/assets/', root)),
 			output: 'server',
 			adapter: nodejs({ mode: 'standalone' }),
 			vite: {
diff --git a/packages/integrations/node/test/errors.test.js b/packages/integrations/node/test/errors.test.js
index 60c184d9f734..9090b162ee4b 100644
--- a/packages/integrations/node/test/errors.test.js
+++ b/packages/integrations/node/test/errors.test.js
@@ -1,7 +1,5 @@
 import assert from 'node:assert/strict';
 import { after, before, describe, it } from 'node:test';
-import { fileURLToPath } from 'node:url';
-import { Worker } from 'node:worker_threads';
 import * as cheerio from 'cheerio';
 import nodejs from '../dist/index.js';
 import { loadFixture } from './test-utils.js';
@@ -28,27 +26,6 @@ describe('Errors', () => {
 		await devPreview?.stop();
 	});
 
-	it('stays alive after offshoot promise rejections', async () => {
-		// this test needs to happen in a worker because node test runner adds a listener for unhandled rejections in the main thread
-		const url = new URL('./fixtures/errors/dist/server/entry.mjs', import.meta.url);
-		const worker = new Worker(fileURLToPath(url), {
-			type: 'module',
-			env: { ASTRO_NODE_LOGGING: 'enabled' },
-		});
-
-		await new Promise((resolve, reject) => {
-			worker.stdout.on('data', (data) => {
-				setTimeout(() => reject('Server took too long to start'), 1000);
-				if (data.toString().includes('Server listening on http://localhost:4321')) resolve();
-			});
-		});
-
-		await fetch('http://localhost:4321/offshoot-promise-rejection');
-
-		// if there was a crash, it becomes an error here
-		await worker.terminate();
-	});
-
 	it(
 		'rejected promise in template',
 		{ skip: true, todo: 'Review the response from the in-stream' },
diff --git a/packages/integrations/node/test/image.test.js b/packages/integrations/node/test/image.test.js
index 0d5e72c551f4..ddb90e4eea91 100644
--- a/packages/integrations/node/test/image.test.js
+++ b/packages/integrations/node/test/image.test.js
@@ -4,6 +4,7 @@ import { inferRemoteSize } from 'astro/assets/utils/inferRemoteSize.js';
 import * as cheerio from 'cheerio';
 import nodejs from '../dist/index.js';
 import { loadFixture } from './test-utils.js';
+import { fileURLToPath } from 'node:url';
 
 describe('Image endpoint', () => {
 	/** @type {import('./test-utils').Fixture} */
@@ -11,8 +12,10 @@ describe('Image endpoint', () => {
 	let devPreview;
 
 	before(async () => {
+		const root = new URL('./fixtures/image/', import.meta.url);
 		fixture = await loadFixture({
-			root: './fixtures/image/',
+			root,
+			outDir: fileURLToPath(new URL('./dist/image/', root)),
 			output: 'server',
 			adapter: nodejs({ mode: 'standalone' }),
 			image: {