In my class I create a CBUrlConnection:

```
urlConnection = [NSURLConnection connectionWithRequest:request delegate:self];
[urlConnection start];

```

but I don't get any response, these delegate methods are never invoked:

```
- (void)connection:(NSURLConnection *)connection didFinishLoadingData:(NSData *)data error:(NSError *)error
- (void)connection:(NSURLConnection *)connection didUpdateProgress:(CGFloat)percent
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response

```

The request seems to be correct, the server url is surely correct, and the server is working correctly. What could be wrong ?