Function createCorsHandler

createCorsHandler(
    corsHeaders: Record<string, string>,
): (
    request: Request,
    handler: (request: Request) => Promise<Response>,
) => Promise<Response>
Creates a CORS handler middleware
Parameters
- corsHeaders: Record<string, string>
  CORS headers to include in responses
Returns (
request: Request,
handler: (request: Request) => Promise<Response>,
) => Promise<Response>
A function that adds CORS headers to responses
Example
```
const customCorsHeaders = {
  'Access-Control-Allow-Origin': 'https://example.com',
  'Access-Control-Allow-Methods': 'GET, POST'
};

const corsHandler = createCorsHandler(customCorsHeaders);
const response = await corsHandler(request, async (req) => {
  return new Response('Hello');
});
```
- Defined in cors.ts:69