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# getPropertiesWithCompletionHandler(_:)

Retrieves the properties of the webpage.

```
func getPropertiesWithCompletionHandler(_ completionHandler: @escaping @Sendable (SFSafariPageProperties?) -> Void)
```

## Parameters

`completionHandler`

A block to call when the properties object is returned.

## Discussion

> Important:
> You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:
> 
> ```swift
> func properties() async -> SFSafariPageProperties?
> ```
> 
> For information about concurrency and asynchronous code in Swift, see <doc://com.apple.documentation/documentation/Swift/calling-objective-c-apis-asynchronously>.

If the extension cannot access the page—for example, the extension has web access permissions set to `None` in the Info.plist—the properties object passed to the completion handler is `nil`. See [`SFSafariPageProperties`](/documentation/SafariServices/SFSafariPageProperties).

---

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