Open Radar

 
Summary:
WKWebView will empty the HTTPBody of a POST URLRequest.
Creating a URLRequest with a HTTPBody and using this request to load content in the WKWebView. Will result in the WKWebView emptying the HTTPBody.

Steps to Reproduce:
- Create WKWebView.
- Create a NSMutableURLRequest.
- Set the HTTPMethod of the URLRequest to POST.
- Set some data to the HTTPBody of the URLRequest.
- Make WKWebView perform the URLRequest by `loadRequest:`.
- Track the request that is going out with Charles for instance or use the NSURLProtocol to see the HTTPBody of the request.

Or use this code snippet:

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    WKWebView *webView = [WKWebView new];
    webView.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:webView];
    
    NSDictionary *views = @{@"webView": webView};
    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[webView]|" options:0 metrics:nil views:views]];
    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[webView]|" options:0 metrics:nil views:views]];
    
    NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.apple.com"]];
    urlRequest.HTTPMethod = @"POST";
    urlRequest.HTTPBody = [@"test" dataUsingEncoding:NSUTF8StringEncoding];
    [webView loadRequest:urlRequest];
}

Expected Results:
The request going out to the www.apple.com server will not contain the HTTPBody. This works in UIWebView.

Actual Results:
HTTPBody is nil.

Version:
iOS 8.2 (12D508)

Notes:


Configuration:
iPad air, iPhone 6, iOS simulators