NSURLRequest for an image

+ (NSMutableURLRequest *)imageRequestWithURL:(NSURL *)url {
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
 
    request.cachePolicy = NSURLRequestReturnCacheDataElseLoad; // this will make sure the request always returns the cached image
    request.HTTPShouldHandleCookies = NO;
    request.HTTPShouldUsePipelining = YES;
    [request addValue:@"image/*" forHTTPHeaderField:@"Accept"];
 
    return request;
}