---
title: "resourceLoader(_:didCancel:)"
framework: avfoundation
role: symbol
role_heading: Instance Method
path: "avfoundation/avassetresourceloaderdelegate/resourceloader(_:didcancel:)-1wqin"
---

# resourceLoader(_:didCancel:)

Informs the delegate that a prior authentication challenge has been cancelled.

## Declaration

```swift
optional func resourceLoader(_ resourceLoader: AVAssetResourceLoader, didCancel authenticationChallenge: URLAuthenticationChallenge)
```

## Parameters

- `resourceLoader`: The resource loader.
- `authenticationChallenge`: The authentication challenge that has been cancelled.

## See Also

### Processing authentication challenges

- [resourceLoader(_:shouldWaitForResponseTo:)](avfoundation/avassetresourceloaderdelegate/resourceloader(_:shouldwaitforresponseto:).md)