- Electron version: >=0.37
- Operating system: ubuntu linux x64

When server send header 'WWW-Authenticate: Negotiate' electron not send kerberos ticket. 
`app.allowNTLMCredentialsForAllDomains(true)`  is called.

On electron v0.36.x it work's fine.

atom/browser/api/atom_api_app.cc
App::App(v8::Isolate* isolate) {
  static_cast<AtomBrowserClient*>(AtomBrowserClient::Get())->set_delegate(this);
  Browser::Get()->AddObserver(this);
  content::GpuDataManager::GetInstance()->AddObserver(this);
  Init(isolate);
}
App::~App() {
  static_cast<AtomBrowserClient*>(AtomBrowserClient::Get())->set_delegate(
      nullptr);
  Browser::Get()->RemoveObserver(this);
  content::GpuDataManager::GetInstance()->RemoveObserver(this);
}
void App::OnBeforeQuit(bool* prevent_default) {
  *prevent_default = Emit("before-quit");
}
void App::OnWillQuit(bool* prevent_default) {
  *prevent_default = Emit("will-quit");
}
void App::OnWindowAllClosed() {
  Emit("window-all-closed");
}
void App::OnQuit() {
  int exitCode = AtomBrowserMainParts::Get()->GetExitCode();
  Emit("quit", exitCode);
  if (process_singleton_.get()) {
    process_singleton_->Cleanup();
    process_singleton_.reset();
  }
}
void App::OnOpenFile(bool* prevent_default, const std::string& file_path) {