Update backend-integration.md

vitejs#4786
katsu223 · Jan 12, 2022 · e158454 · e158454
1 parent 669d7e0
commit e158454
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/docs/guide/backend-integration.md b/docs/guide/backend-integration.md
@@ -26,7 +26,9 @@ If you need a custom integration, you can follow the steps in this guide to conf
 
    ```js
    // add the beginning of your app entry
-   import 'vite/modulepreload-polyfill'
+   if (import.meta.env.MODE !== 'development') {
+     import('vite/modulepreload-polyfill')
+   }
    ```
 
 2. For development, inject the following in your server's HTML template (substitute `http://localhost:3000` with the local URL Vite is running at):