ios - WKWebView iOS 10.3 因 didReceiveAuthenticationChallenge 崩溃？

Question

func webView(webView: WKWebView, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge, completionHandler: (NSURLSessionAuthChallengeDisposition, NSURLCredential?) -> Void) {
    var user: String?
    var password: String?
    switch providerID {
    case "197": // ABC Stagging
        user = "ABC"
        password = "abc"
    default:
        break
    }
    if let user = user, password = password {
        let credential = NSURLCredential(user: user, password: password, persistence: NSURLCredentialPersistence.ForSession)
        challenge.sender?.useCredential(credential, forAuthenticationChallenge: challenge)
        completionHandler(NSURLSessionAuthChallengeDisposition.UseCredential, credential)
    }
}

根据 crashlytics 的说法，崩溃是在线发生的，信息挑战不是由接收者发送的。

    challenge.sender?.useCredential(credential, forAuthenticationChallenge: challenge)

感谢任何帮助。这仅发生在 iOS 10.3 上。我猜有些用户有测试版并且正在体验这种情况。

Answer 1

同样的问题，我通过评论这一行来解决

//    challenge.sender?.useCredential(credential, forAuthenticationChallenge: challenge)