How to get HTTP headers

Question

How do you retrieve all HTTP headers from a NSURLRequest in Objective-C?

Answer 1

YourViewController.h

@interface YourViewController : UIViewController 
    @property (weak, nonatomic) IBOutlet UIWebView *yourWebView;
@end

YourViewController.m

- (void)viewDidLoad
{
    [super viewDidLoad];
    //Set the UIWebView delegate to your view controller
    self.yourWebView.delegate = self;

    //Request your URL
    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://website.com/your-page.php"]];

    [self.legalWebView loadRequest:request];
}

//Implement the following method
- (void)webViewDidFinishLoad:(UIWebView *)webView{
    NSLog(@"%@",[webView.request allHTTPHeaderFields]);
}