# useHeadSafe
> The recommended way to provide head data with user input.
## Usage
The `useHeadSafe` composable is a wrapper around the [`useHead`](/docs/4.x/api/composables/use-head) composable that restricts the input to only allow safe values. This is the recommended way to manage head data when working with user input, as it prevents XSS attacks by sanitizing potentially dangerous attributes.
When using `useHeadSafe`, potentially dangerous attributes like `innerHTML` in scripts or `http-equiv` in meta tags are automatically stripped out to prevent XSS attacks. Use this composable whenever you're working with user-generated content.
## Type
```ts [Signature]
export function useHeadSafe (input: MaybeComputedRef): void
```
### Allowed Attributes
The following attributes are whitelisted for each head element type:
```ts
const WhitelistAttributes = {
htmlAttrs: ['class', 'style', 'lang', 'dir'],
bodyAttrs: ['class', 'style'],
meta: ['name', 'property', 'charset', 'content', 'media'],
noscript: ['textContent'],
style: ['media', 'textContent', 'nonce', 'title', 'blocking'],
script: ['type', 'textContent', 'nonce', 'blocking'],
link: ['color', 'crossorigin', 'fetchpriority', 'href', 'hreflang', 'imagesrcset', 'imagesizes', 'integrity', 'media', 'referrerpolicy', 'rel', 'sizes', 'type'],
}
```
See [@unhead/vue](https://github.com/unjs/unhead/blob/main/packages/vue/src/types/safeSchema.ts) for more detailed types.
## Parameters
`input`: A `MaybeComputedRef` object containing head data. You can pass all the same values as [`useHead`](/docs/4.x/api/composables/use-head), but only safe attributes will be rendered.
## Return Values
This composable does not return any value.
## Example
```vue [app/pages/user-profile.vue]
```
Read more on the `Unhead` documentation.
---
- [Source](https://github.com/unjs/unhead/blob/main/packages/vue/src/composables.ts)