---
title: configuration
framework: webkit
role: symbol
role_heading: Instance Property
path: webkit/wkwebextensioncontroller/configuration-swift.property
---

# configuration

A copy of the configuration with which the web extension controller was initialized.

## Declaration

```swift
@NSCopying var configuration: WKWebExtensionController.Configuration { get }
```

## Discussion

Discussion Mutating the configuration has no effect on the web extension controller.