---
title: parentURL
framework: networkextension
role: symbol
role_heading: Instance Property
path: networkextension/nefilterbrowserflow/parenturl
---

# parentURL

A URL of the web page that’s responsible for the flow’s creation.

## Declaration

```swift
var parentURL: URL? { get }
```

## Discussion

Discussion This property will be non-nil only if the flow is loading a resource into a frame. In that case, this property will be set to the URL of the web page containing the frame.

## See Also

### Getting browser flow properties

- [request](networkextension/nefilterbrowserflow/request.md)
- [response](networkextension/nefilterbrowserflow/response.md)