title: Alamofire unable disable caching
body: <p>I can not get Alamofire or iOS to stop caching:</p>
  
  <pre><code>Alamofire.SessionManager.default.session.configuration.requestCachePolicy = .reloadIgnoringLocalCacheData
  </code></pre>
  
  <p>or </p>
  
  <pre><code>URLCache.shared.removeAllCachedResponses()
  </code></pre>
  
  <p>I need to disable it for all requests?</p>
  
  <p>Also tried:</p>
  
  <pre><code>let configuration = URLSessionConfiguration.default
  configuration.urlCache = nil
  let manager = Alamofire.SessionManager(configuration: configuration)
  </code></pre>
  
  <p>This give this error:</p>
  
  <pre><code>Auth request failed with error:
   Error Domain=NSURLErrorDomain Code=-999 "cancelled" UserInfo={NSErrorFailingURLKey=http://localhost:8080/slow/file.json, NSLocalizedDescription=cancelled, NSErrorFailingURLStringKey=http://localhost:8080/slow/file.json}
  </code></pre>