Hello,I'm trying to migrate my code to WKWebView, and I have the following case:NSAssert(parameters.length > 0); // just to be sure NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url]; request.HTTPMethod = @"POST"; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setHTTPBody:[parameters dataUsingEncoding:NSUTF8StringEncoding]]; [self.webView loadRequest:request];It works fine with UIWebView, but for WKWebView it sends a POST request with empty body.I tried to add a policy decision handler for a WKWebView:- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler { NSURLRequest *request = navigationAction.request; // request.HTTPBody is nil here if ([request.HTTPMethod isEqualToString:@"POST"] && request.HTTPBody == nil && [request isKindOfClass:[NSMutableURLRequest class]]) { // and even overwriting the body doesn't make it sent to server [(NSMutableURLRequest*)request setHTTPBody:[parameters dataUsingEncoding:NSUTF8StringEncoding]]; } decisionHandler(WKNavigationActionPolicyAllow); }WKWebView is created with a default configuration. Tested in both 9.0 and 8.4 simulators, and 9.0 device.Any suggestions? Is there some policy that prevents a WKWebView being initialized with a POST request, or is it a bug that survived since iOS 8?I understand there's hardly a lot of people who need to initialize a web view with POST requests, but still?..Thanks,Alex.