- 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_session.cc
scoped_ptr<brightray::DevToolsNetworkConditions> conditions;
  bool offline = false;
  double latency, download_throughput, upload_throughput;
  if (options.Get("offline", &offline) && offline) {
    conditions.reset(new brightray::DevToolsNetworkConditions(offline));
  } else {
    options.Get("latency", &latency);
    options.Get("downloadThroughput", &download_throughput);
    options.Get("uploadThroughput", &upload_throughput);
    conditions.reset(
        new brightray::DevToolsNetworkConditions(false,
                                                 latency,
                                                 download_throughput,
                                                 upload_throughput));
  }
  browser_context_->network_controller_handle()->SetNetworkState(
      devtools_network_emulation_client_id_, std::move(conditions));
  browser_context_->network_delegate()->SetDevToolsNetworkEmulationClientId(
      devtools_network_emulation_client_id_);
}
void Session::DisableNetworkEmulation() {
  scoped_ptr<brightray::DevToolsNetworkConditions> conditions;
  browser_context_->network_controller_handle()->SetNetworkState(
      devtools_network_emulation_client_id_, std::move(conditions));
  browser_context_->network_delegate()->SetDevToolsNetworkEmulationClientId(
      std::string());
}
void Session::SetCertVerifyProc(v8::Local<v8::Value> val,