puppeteer/website/versioned_docs/version-21.9.0/api/puppeteer.page.mainframe.md
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---
sidebar_label: Page.mainFrame
---
# Page.mainFrame() method
The page's main frame.
#### Signature:
```typescript
class Page {
abstract mainFrame(): Frame;
}
```
**Returns:**
[Frame](./puppeteer.frame.md)
## Remarks
Page is guaranteed to have a main frame which persists during navigations.