wkWebView load request fail with Error Domain=NSURLErrorDomain Code=-999

Question

in WKWebView on loading url get

Error Domain=NSURLErrorDomain Code=-999 "(null)" UserInfo={NSErrorFailingURLStringKey="https://xxxxxxxxx", NSErrorFailingURLKey="https://xxxxxxxxx", _WKRecoveryAttempterErrorKey=}

I got this error not always but randomly

Answer 1

-999 error code means NSURLErrorCancelled.

This happens when the past request is cancelled.

func webView(webView: WKWebView, didFailNavigation navigation: WKNavigation, withError error: NSError) {

    print(error)

}