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# WKWebExtensionContext.NotificationUserInfoKey

Constants for specifying web extension context information in notifications.

```
struct NotificationUserInfoKey
```

## Topics

### Type properties

[`matchPatterns`](/documentation/WebKit/WKWebExtensionContext/NotificationUserInfoKey/matchPatterns)

The corresponding value represents the affected permission match patterns in [`WKWebExtensionContext`](/documentation/WebKit/WKWebExtensionContext) notifications.

[`permissions`](/documentation/WebKit/WKWebExtensionContext/NotificationUserInfoKey/permissions)

The corresponding value represents the affected permissions in [`WKWebExtensionContext`](/documentation/WebKit/WKWebExtensionContext) notifications.


---

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