# useNonce
The `useNonce` hook returns the [content security policy](https://shopify.dev/docs/custom-storefronts/hydrogen/content-security-policy) nonce. Use the hook to manually add a nonce to third party scripts. The `Script` component automatically does this for you. Note, the nonce should never be available in the client, and should always return undefined in the browser.
```jsx
import {
Links,
LiveReload,
Meta,
Outlet,
Scripts,
ScrollRestoration,
} from '@remix-run/react';
import {useNonce} from '@shopify/hydrogen';
export default function App() {
const nonce = useNonce();
return (
);
}
```
```tsx
import {
Links,
LiveReload,
Meta,
Outlet,
Scripts,
ScrollRestoration,
} from '@remix-run/react';
import {useNonce} from '@shopify/hydrogen';
export default function App() {
const nonce = useNonce();
return (
);
}
```
## Props
### UseNonceGeneratedType
#### Returns:
useNonce = () => useContext(NonceContext)
## Related
- [createContentSecurityPolicy](https://shopify.dev/docs/api/hydrogen/2024-01/utilities/createcontentsecuritypolicy)
- [Script](https://shopify.dev/docs/api/hydrogen/2024-01/components/script)