[Home](./index.md) > [puppeteer](./puppeteer.md) > [HTTPResponse](./puppeteer.httpresponse.md) > [fromServiceWorker](./puppeteer.httpresponse.fromserviceworker.md)
## HTTPResponse.fromServiceWorker() method
Signature:
```typescript
fromServiceWorker(): boolean;
```
Returns:
boolean
True if the response was served by a service worker.