title: Where's the NSURLConnection protocol?
body: <p>The documentation of NSURLConnection says that there are delegate methods like </p>
  
  <pre><code>connection:willSendRequest:redirectResponse: 
  </code></pre>
  
  <p>But the documentation doesn't mention which delegate protocol to implement. Well, I assume there just isn't any protocol for the delegate, so everything is just optional?</p>