diff --git a/packages/astro/src/core/config/schema.ts b/packages/astro/src/core/config/schema.ts
index cf4f9a412..ac70ec337 100644
--- a/packages/astro/src/core/config/schema.ts
+++ b/packages/astro/src/core/config/schema.ts
@@ -74,10 +74,7 @@ export const AstroConfigSchema = z.object({
 		.url()
 		.optional()
 		.transform((val) => (val ? appendForwardSlash(val) : val)),
-	base: z
-		.string()
-		.optional()
-		.default(ASTRO_CONFIG_DEFAULTS.base),
+	base: z.string().optional().default(ASTRO_CONFIG_DEFAULTS.base),
 	trailingSlash: z
 		.union([z.literal('always'), z.literal('never'), z.literal('ignore')])
 		.optional()
@@ -326,11 +323,11 @@ export function createRelativeSchema(cmd: string, fileProtocolRoot: URL) {
 			config.build.client = new URL('./dist/client/', config.outDir);
 		}
 		const trimmedBase = trimSlashes(config.base);
-		if(trimmedBase.length && config.trailingSlash === 'never') {
-      config.base = prependForwardSlash(trimmedBase);
-    } else {
-      config.base = prependForwardSlash(appendForwardSlash(trimmedBase));
-    }
+		if (trimmedBase.length && config.trailingSlash === 'never') {
+			config.base = prependForwardSlash(trimmedBase);
+		} else {
+			config.base = prependForwardSlash(appendForwardSlash(trimmedBase));
+		}
 		return config;
 	});
 
diff --git a/packages/astro/src/core/routing/manifest/create.ts b/packages/astro/src/core/routing/manifest/create.ts
index 52dbef8f0..fda9b7e58 100644
--- a/packages/astro/src/core/routing/manifest/create.ts
+++ b/packages/astro/src/core/routing/manifest/create.ts
@@ -61,7 +61,11 @@ function getParts(part: string, file: string) {
 	return result;
 }
 
-function getPattern(segments: RoutePart[][], base: string, addTrailingSlash: AstroConfig['trailingSlash']) {
+function getPattern(
+	segments: RoutePart[][],
+	base: string,
+	addTrailingSlash: AstroConfig['trailingSlash']
+) {
 	const pathname = segments
 		.map((segment) => {
 			if (segment.length === 1 && segment[0].spread) {
@@ -94,7 +98,7 @@ function getPattern(segments: RoutePart[][], base: string, addTrailingSlash: Ast
 	const trailing =
 		addTrailingSlash && segments.length ? getTrailingSlashPattern(addTrailingSlash) : '$';
 	let initial = '\\/';
-	if(addTrailingSlash === 'never' && base !== '/') {
+	if (addTrailingSlash === 'never' && base !== '/') {
 		initial = '';
 	}
 	return new RegExp(`^${pathname || initial}${trailing}`);
diff --git a/packages/astro/src/vite-plugin-astro-server/request.ts b/packages/astro/src/vite-plugin-astro-server/request.ts
index b0480f98f..1a144de5f 100644
--- a/packages/astro/src/vite-plugin-astro-server/request.ts
+++ b/packages/astro/src/vite-plugin-astro-server/request.ts
@@ -27,7 +27,7 @@ export async function handleRequest(
 
 	const url = new URL(origin + req.url);
 	let pathname: string;
-	if(config.trailingSlash === 'never' && !req.url) {
+	if (config.trailingSlash === 'never' && !req.url) {
 		pathname = '';
 	} else {
 		pathname = decodeURI(url.pathname);
diff --git a/packages/astro/test/units/dev/base.test.js b/packages/astro/test/units/dev/base.test.js
index 503b41002..d3dd94341 100644
--- a/packages/astro/test/units/dev/base.test.js
+++ b/packages/astro/test/units/dev/base.test.js
@@ -9,97 +9,121 @@ describe('base configuration', () => {
 	describe('with trailingSlash: "never"', () => {
 		describe('index route', () => {
 			it('Requests that include a trailing slash 404', async () => {
-				const fs = createFs({
-					'/src/pages/index.astro': `<h1>testing</h1>`,
-				}, root);
-		
-				await runInContainer({
-					fs,
-					root,
-					userConfig: {
-						base: '/docs',
-						trailingSlash: 'never',
+				const fs = createFs(
+					{
+						'/src/pages/index.astro': `<h1>testing</h1>`,
 					},
-				}, async (container) => {
-					const { req, res, done } = createRequestAndResponse({
-						method: 'GET',
-						url: '/docs/',
-					});
-					container.handle(req, res);
-					await done;
-					expect(res.statusCode).to.equal(404);
-				});
+					root
+				);
+
+				await runInContainer(
+					{
+						fs,
+						root,
+						userConfig: {
+							base: '/docs',
+							trailingSlash: 'never',
+						},
+					},
+					async (container) => {
+						const { req, res, done } = createRequestAndResponse({
+							method: 'GET',
+							url: '/docs/',
+						});
+						container.handle(req, res);
+						await done;
+						expect(res.statusCode).to.equal(404);
+					}
+				);
 			});
-	
+
 			it('Requests that exclude a trailing slash 200', async () => {
-				const fs = createFs({
-					'/src/pages/index.astro': `<h1>testing</h1>`,
-				}, root);
-		
-				await runInContainer({
-					fs,
-					root,
-					userConfig: {
-						base: '/docs',
-						trailingSlash: 'never',
+				const fs = createFs(
+					{
+						'/src/pages/index.astro': `<h1>testing</h1>`,
 					},
-				}, async (container) => {
-					const { req, res, done } = createRequestAndResponse({
-						method: 'GET',
-						url: '/docs',
-					});
-					container.handle(req, res);
-					await done;
-					expect(res.statusCode).to.equal(200);
-				});
+					root
+				);
+
+				await runInContainer(
+					{
+						fs,
+						root,
+						userConfig: {
+							base: '/docs',
+							trailingSlash: 'never',
+						},
+					},
+					async (container) => {
+						const { req, res, done } = createRequestAndResponse({
+							method: 'GET',
+							url: '/docs',
+						});
+						container.handle(req, res);
+						await done;
+						expect(res.statusCode).to.equal(200);
+					}
+				);
 			});
 		});
 
 		describe('sub route', () => {
 			it('Requests that include a trailing slash 404', async () => {
-				const fs = createFs({
-					'/src/pages/sub/index.astro': `<h1>testing</h1>`,
-				}, root);
-		
-				await runInContainer({
-					fs,
-					root,
-					userConfig: {
-						base: '/docs',
-						trailingSlash: 'never',
+				const fs = createFs(
+					{
+						'/src/pages/sub/index.astro': `<h1>testing</h1>`,
 					},
-				}, async (container) => {
-					const { req, res, done } = createRequestAndResponse({
-						method: 'GET',
-						url: '/docs/sub/',
-					});
-					container.handle(req, res);
-					await done;
-					expect(res.statusCode).to.equal(404);
-				});
+					root
+				);
+
+				await runInContainer(
+					{
+						fs,
+						root,
+						userConfig: {
+							base: '/docs',
+							trailingSlash: 'never',
+						},
+					},
+					async (container) => {
+						const { req, res, done } = createRequestAndResponse({
+							method: 'GET',
+							url: '/docs/sub/',
+						});
+						container.handle(req, res);
+						await done;
+						expect(res.statusCode).to.equal(404);
+					}
+				);
 			});
-	
+
 			it('Requests that exclude a trailing slash 200', async () => {
-				const fs = createFs({
-					'/src/pages/sub/index.astro': `<h1>testing</h1>`,
-				}, root);
-		
-				await runInContainer({
-					fs,
-					root,
-					userConfig: {
-						base: '/docs',
-						trailingSlash: 'never',
+				const fs = createFs(
+					{
+						'/src/pages/sub/index.astro': `<h1>testing</h1>`,
 					},
-				}, async (container) => {
-					const { req, res, done } = createRequestAndResponse({
-						method: 'GET',
-						url: '/docs/sub',
-					});
-					container.handle(req, res);
-					await done;
-					expect(res.statusCode).to.equal(200);
-				});
+					root
+				);
+
+				await runInContainer(
+					{
+						fs,
+						root,
+						userConfig: {
+							base: '/docs',
+							trailingSlash: 'never',
+						},
+					},
+					async (container) => {
+						const { req, res, done } = createRequestAndResponse({
+							method: 'GET',
+							url: '/docs/sub',
+						});
+						container.handle(req, res);
+						await done;
+						expect(res.statusCode).to.equal(200);
+					}
+				);
 			});
 		});
 	});
diff --git a/packages/astro/test/units/routing/manifest.test.js b/packages/astro/test/units/routing/manifest.test.js
index b2ec5d503..05789d752 100644
--- a/packages/astro/test/units/routing/manifest.test.js
+++ b/packages/astro/test/units/routing/manifest.test.js
@@ -9,17 +9,23 @@ const root = new URL('../../fixtures/alias/', import.meta.url);
 
 describe('routing - createRouteManifest', () => {
 	it('using trailingSlash: "never" does not match the index route when it contains a trailing slash', async () => {
-		const fs = createFs({
-			'/src/pages/index.astro': `<h1>test</h1>`,
-		}, root);
-		const settings = await createDefaultDevSettings({
-			base: '/search',
-			trailingSlash: 'never'
-		}, root);
+		const fs = createFs(
+			{
+				'/src/pages/index.astro': `<h1>test</h1>`,
+			},
+			root
+		);
+		const settings = await createDefaultDevSettings(
+			{
+				base: '/search',
+				trailingSlash: 'never',
+			},
+			root
+		);
 		const manifest = createRouteManifest({
 			cwd: fileURLToPath(root),
 			settings,
-			fsMod: fs
+			fsMod: fs,
 		});
 		const [{ pattern }] = manifest.routes;
 		expect(pattern.test('')).to.equal(true);