diff --git a/examples/subpath/astro.config.mjs b/examples/subpath/astro.config.mjs
index 989f60121..7a7a3ed2d 100644
--- a/examples/subpath/astro.config.mjs
+++ b/examples/subpath/astro.config.mjs
@@ -10,7 +10,7 @@
 export default /** @type {import('astro').AstroUserConfig} */ ({
   // Comment out "renderers: []" to enable Astro's default component support.
   buildOptions: {
-    site: 'http://example.com/blog'
+    site: 'http://example.com/blog',
   },
   renderers: ['@astrojs/renderer-react'],
 });
diff --git a/examples/subpath/src/components/Time.jsx b/examples/subpath/src/components/Time.jsx
index 8172b77dd..8b5837c85 100644
--- a/examples/subpath/src/components/Time.jsx
+++ b/examples/subpath/src/components/Time.jsx
@@ -1,7 +1,7 @@
 import React from 'react';
 
-export default function() {
+export default function () {
   const date = new Date();
   const format = new Intl.DateTimeFormat('en-US');
-  return <time>{format.format(date)}</time>
-}
\ No newline at end of file
+  return <time>{format.format(date)}</time>;
+}
diff --git a/examples/subpath/src/styles/main.scss b/examples/subpath/src/styles/main.scss
index 573fc4396..a54a15f01 100644
--- a/examples/subpath/src/styles/main.scss
+++ b/examples/subpath/src/styles/main.scss
@@ -2,4 +2,4 @@ body {
   #app {
     color: tomato;
   }
-}
\ No newline at end of file
+}
diff --git a/packages/astro/src/core/build/index.ts b/packages/astro/src/core/build/index.ts
index b3a514e88..d7adb4745 100644
--- a/packages/astro/src/core/build/index.ts
+++ b/packages/astro/src/core/build/index.ts
@@ -184,7 +184,7 @@ class AstroBuilder {
       publicDir: viteConfig.publicDir,
       root: viteConfig.root,
       server: viteConfig.server,
-      base: this.config.buildOptions.site ? new URL(this.config.buildOptions.site).pathname : '/'
+      base: this.config.buildOptions.site ? new URL(this.config.buildOptions.site).pathname : '/',
     });
     debug(logging, 'build', timerMessage('Vite build finished', timer.buildStart));
 
diff --git a/packages/astro/src/core/dev/index.ts b/packages/astro/src/core/dev/index.ts
index 5c81f4101..66e891dce 100644
--- a/packages/astro/src/core/dev/index.ts
+++ b/packages/astro/src/core/dev/index.ts
@@ -234,7 +234,7 @@ export class AstroDevServer {
           server: {
             middlewareMode: 'ssr',
             host: this.hostname,
-          }
+          },
         },
         this.config.vite || {}
       ),
@@ -278,7 +278,7 @@ export class AstroDevServer {
     let filePath: URL | undefined;
     try {
       let routePathname = pathname.startsWith(this.pathname) ? pathname.substr(this.pathname.length) || '/' : undefined;
-      if(!routePathname) {
+      if (!routePathname) {
         next();
         return;
       }
@@ -363,7 +363,7 @@ export class AstroDevServer {
     }
     // if not found, fall back to default template
     else {
-      if(pathname === '/' && !pathname.startsWith(this.pathname)) {
+      if (pathname === '/' && !pathname.startsWith(this.pathname)) {
         html = subpathNotUsedTemplate(this.pathname, pathname);
       } else {
         html = notFoundTemplate({ statusCode, title: 'Not found', tabTitle: '404: Not Found', pathname });
diff --git a/packages/astro/src/core/dev/template/4xx.ts b/packages/astro/src/core/dev/template/4xx.ts
index b24e87098..e321a881a 100644
--- a/packages/astro/src/core/dev/template/4xx.ts
+++ b/packages/astro/src/core/dev/template/4xx.ts
@@ -47,9 +47,12 @@ export default function template({ title, pathname, statusCode = 404, tabTitle,
       <main class="center">
         <svg class="astro" viewBox="0 0 256 256" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M163.008 18.929c1.944 2.413 2.935 5.67 4.917 12.181l43.309 142.27a180.277 180.277 0 00-51.778-17.53l-28.198-95.29a3.67 3.67 0 00-7.042.01l-27.857 95.232a180.225 180.225 0 00-52.01 17.557l43.52-142.281c1.99-6.502 2.983-9.752 4.927-12.16a15.999 15.999 0 016.484-4.798c2.872-1.154 6.271-1.154 13.07-1.154h31.085c6.807 0 10.211 0 13.086 1.157a16.004 16.004 0 016.487 4.806z" fill="white"></path><path fill-rule="evenodd" clip-rule="evenodd" d="M168.19 180.151c-7.139 6.105-21.39 10.268-37.804 10.268-20.147 0-37.033-6.272-41.513-14.707-1.602 4.835-1.961 10.367-1.961 13.902 0 0-1.056 17.355 11.015 29.426 0-6.268 5.081-11.349 11.349-11.349 10.743 0 10.731 9.373 10.721 16.977v.679c0 11.542 7.054 21.436 17.086 25.606a23.27 23.27 0 01-2.339-10.2c0-11.008 6.463-15.107 13.974-19.87 5.976-3.79 12.616-8.001 17.192-16.449a31.024 31.024 0 003.743-14.82c0-3.299-.513-6.479-1.463-9.463z" fill="#ff5d01"></path></svg>
         <h1>${statusCode ? `<span class="statusCode">${statusCode}: </span> ` : ''}<span class="statusMessage">${title}</span></h1>
-        ${body || `
+        ${
+          body ||
+          `
           <pre>Path: ${encode(pathname)}</pre>
-        `}
+        `
+        }
         </main>
     </body>
   </html>`;
@@ -64,6 +67,6 @@ export function subpathNotUsedTemplate(base: string, pathname: string) {
     body: `
       <p>In your <code>buildOptions.site</code> you have your base path set to <a href="${base}">${base}</a>. Do you want to go there instead?</p>
       <p>Come to our <a href="https://astro.build/chat">Discord</a> if you need help.</p>
-    `
- });
-}
\ No newline at end of file
+    `,
+  });
+}
diff --git a/packages/astro/src/core/preview/index.ts b/packages/astro/src/core/preview/index.ts
index 28f568827..3e19c8c55 100644
--- a/packages/astro/src/core/preview/index.ts
+++ b/packages/astro/src/core/preview/index.ts
@@ -27,7 +27,7 @@ export default async function preview(config: AstroConfig, { logging }: PreviewO
 
   // Create the preview server, send static files out of the `dist/` directory.
   const server = http.createServer((req, res) => {
-    if(!req.url!.startsWith(base)) {
+    if (!req.url!.startsWith(base)) {
       res.statusCode = 404;
       res.end(subpathNotUsedTemplate(base, req.url!));
       return;