title: NSURLConnection is not working in NSBlockOperation while operation added to NSOperationQueue
body: <p>I am using NSURLConnection in NSBlockOperation and i am adding this operation to NSOperationQueue.But it is not working.When i am calling start method of NSBlockOperation then it working but it is not working when i am adding NSBlockOperation to NSOperationQueue.</p>
  
  <p>please can anyone help me ???</p>
  
  <pre><code>NSOperationQueue *operationQueue = [[NSOperationQueue alloc] init];
  [operationQueue setMaxConcurrentOperationCount:1];
  
  NSBlockOperation *operation1 = [NSBlockOperation blockOperationWithBlock:^{
      NSURL *url = [NSURL URLWithString:@"http://api.kivaws.org/v1/loans/search.json?status=fundraising"];
      NSURLRequest *req = [NSURLRequest requestWithURL:url];
  
      NSURLConnection  *connection1 = [[NSURLConnection alloc] initWithRequest:req delegate:self];
      [connection1 start];
  }];
  
  NSBlockOperation *operation2 = [NSBlockOperation blockOperationWithBlock:^{
      NSURL *url = [NSURL URLWithString:@"http://urls.api.twitter.com/1/urls/count.json"];
      NSURLRequest *req = [NSURLRequest requestWithURL:url];
  
  
      NSURLConnection  *connection2 = [[NSURLConnection alloc] initWithRequest:req delegate:self];
      [connection2 start];
  }];
  
  [operation2 addDependency:operation1];
  
  [operationQueue addOperation:operation1];
  [operationQueue addOperation:operation2];
  </code></pre>
  
  <p>I have also implemented NSURLConnectionDataDelegate as:</p>
  
  <ul>
  <li>(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data</li>
  <li>(void)connection:(NSURLConnection *)conn didReceiveResponse:(NSURLResponse *)response</li>
  </ul>
  
  <p>Please help
  Thanks</p>