iOS：从UIWebView中的URL加载音频时出现问题

- (void)viewDidLoad
{
    [super viewDidLoad];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString:@\"http://localhost/podcasts/downloader/download.mp3?af=a&f=10109\"]]; 

    [webView loadRequest:request];

}

An error occurred while exchanging data. \"Plug-in handled load\"

//Playing audio gives error that says plug-in handled load
if([error.domain isEqualToString:@\"WebKitErrorDomain\"] && error.code == 204)
{
    // Ignore it 
}