When i return any http error from my page (currently 401, but i tried also with 404 and so on)
http://min60.com/__personal/e401.php
the delegate callbacks of the WKWebView don't return an error
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error
- (void)webView:(WKWebView *)webView didFailNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error {
How to catch such errors?
The key was to wait for the response and then inspect the object, no error is called on http code
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler {
if ([navigationResponse.response isKindOfClass:[NSHTTPURLResponse class]]) {
NSHTTPURLResponse * response = (NSHTTPURLResponse *)navigationResponse.response;
if (response.statusCode == 401) {
// here we go
}
}
decisionHandler(WKNavigationResponsePolicyAllow);
}
Swift version:
public func webView(
_ webView: WKWebView,
decidePolicyFor navigationResponse: WKNavigationResponse,
decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void
) {
if
let httpResponse = navigationResponse.response as? HTTPURLResponse,
!(200..<400).contains(httpResponse.statusCode)
{
// Do something
}
decisionHandler(.allow)
}
