- 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
auto browser_context = static_cast<AtomBrowserContext*>(
        AtomBrowserMainParts::Get()->browser_context());
  browser_context->AllowNTLMCredentialsForAllDomains(should_allow);
}
std::string App::GetLocale() {
  return l10n_util::GetApplicationLocale("");
}
bool App::MakeSingleInstance(
    const ProcessSingleton::NotificationCallback& callback) {
  if (process_singleton_.get())
    return false;
  base::FilePath user_dir;
  PathService::Get(brightray::DIR_USER_DATA, &user_dir);
  process_singleton_.reset(new ProcessSingleton(
      user_dir, base::Bind(NotificationCallbackWrapper, callback)));
  switch (process_singleton_->NotifyOtherProcessOrCreate()) {
    case ProcessSingleton::NotifyResult::LOCK_ERROR:
    case ProcessSingleton::NotifyResult::PROFILE_IN_USE:
    case ProcessSingleton::NotifyResult::PROCESS_NOTIFIED:
      process_singleton_.reset();
      return true;
    case ProcessSingleton::NotifyResult::PROCESS_NONE:
    default:  
      return false;
  }
}
#if defined(USE_NSS_CERTS)
void App::ImportCertificate(