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Add documentation for new static 500 behavior #22888

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Mar 9, 2021
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17 changes: 15 additions & 2 deletions docs/advanced-features/custom-error-page.md
Original file line number Diff line number Diff line change
Expand Up @@ -25,9 +25,22 @@ export default function Custom404() {

## 500 Page

By default Next.js provides a 500 error page that matches the default 404 page’s style. This page is not statically optimized as it allows server-side errors to be reported. This is why 404 and 500 (other errors) are separated.
Server-rendering an error page for every visit adds complexity to responding to errors. To help users get responses to errors as fast as possible, Next.js provides a static 500 page by default without having to add any additional files.

### Customizing The Error Page
### Customizing The 500 Page

To create a custom 500 page you can create a `pages/500.js` file. This file is statically generated at build time.
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```jsx
// pages/500.js
export default function Custom500() {
return <h1>500 - Server-side error occurred</h1>
}
```

> **Note**: You can use [`getStaticProps`](/docs/basic-features/data-fetching.md#getstaticprops-static-generation) inside this page if you need to fetch data at build time.

### More Advanced Error Page Customizing

500 errors are handled both client-side and server-side by the `Error` component. If you wish to override it, define the file `pages/_error.js` and add the following code:

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