# ContentSecurityPolicyOptionHandler

**Kind:** Type

**Source:** [`src/middleware/secure-headers/secure-headers.ts`](https://github.com/honojs/hono/blob/main/src/middleware/secure-headers/secure-headers.ts#L15)

**Part of:** [Middleware](subsystem-src-middleware)

## Definition

```ts
(ctx: Context, directive: string) => string
```