🐛 waitUntil breaks their caching, cache-control ignored by cf

**Describe the bug**

Somehow, this causes Cloudflare not to honour Cache-Control headers in Qwik. The answers do not have the cache-hit header.

**Please see**: https://github.com/BuilderIO/qwik/pull/5952 (cache-control ignored by cf)

part of code

```TS
// writing to cache
ctx.waitUntil(
handledResponse.completion.then(() => cache.put(cacheKey, response.clone()))
);
```