---
title: allowedDevOrigins
description: Use `allowedDevOrigins` to configure additional origins that can request the dev server.
---

{/* The content of this doc is shared between the app and pages router. You can use the `<PagesOnly>Content</PagesOnly>` component to add content that is specific to the Pages Router. Any shared content should not be wrapped in a component. */}

Next.js blocks cross-origin requests to dev-only assets and endpoints during development by default to prevent unauthorized access.

To configure a Next.js application to allow requests from origins other than the hostname the server was initialized with (`localhost` by default), use the `allowedDevOrigins` config option.

`allowedDevOrigins` lets you set additional origins that can request the dev server in development mode. For example, to use `local-origin.dev` instead of only `localhost`, open `next.config.js` and add the `allowedDevOrigins` config:

```js filename="next.config.js"
module.exports = {
  allowedDevOrigins: ['local-origin.dev', '*.local-origin.dev'],
}
```