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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Protocol](./puppeteer.protocol.md) &gt; [Page](./puppeteer.protocol.page.md) &gt; [LifecycleEventEvent](./puppeteer.protocol.page.lifecycleeventevent.md) &gt; [loaderId](./puppeteer.protocol.page.lifecycleeventevent.loaderid.md)

## Protocol.Page.LifecycleEventEvent.loaderId property

Loader identifier. Empty string if the request is fetched from worker.

<b>Signature:</b>

```typescript
loaderId: Network.LoaderId;
```