RSS feed does not load to the WebView correctly

I created an RSS reader through Xcode and seem to have problems when I load a CRAIGSLIST RSS feed into the NSURL.. It seems to work with the below code.. But when I put a Craigslist RSS in there it does not brings me to a 404 error in craigslist. Any thoughts?

- (void)viewDidLoad {[super viewDidLoad];feeds = [[NSMutableArray alloc] init];NSURL *url = [NSURL URLWithString:@"http://images.apple.com/main/rss/hotnews/hotnews.rss"];parser = [[NSXMLParser alloc] initWithContentsOfURL:url];[parser setDelegate:self];[parser setShouldResolveExternalEntities:NO];[parser parse];