- 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.h
content::WebContents* web_contents,
      net::SSLCertRequestInfo* cert_request_info,
      scoped_ptr<content::ClientCertificateDelegate> delegate) override;
  
  void OnGpuProcessCrashed(base::TerminationStatus exit_code) override;
 private:
  
  base::FilePath GetPath(mate::Arguments* args, const std::string& name);
  void SetPath(mate::Arguments* args,
               const std::string& name,
               const base::FilePath& path);
  void SetDesktopName(const std::string& desktop_name);
  void AllowNTLMCredentialsForAllDomains(bool should_allow);
  bool MakeSingleInstance(
      const ProcessSingleton::NotificationCallback& callback);
  std::string GetLocale();
#if defined(USE_NSS_CERTS)
  void ImportCertificate(const base::DictionaryValue& options,
                         const net::CompletionCallback& callback);
#endif
  scoped_ptr<ProcessSingleton> process_singleton_;
#if defined(USE_NSS_CERTS)
  scoped_ptr<CertificateManagerModel> certificate_manager_model_;
#endif
  DISALLOW_COPY_AND_ASSIGN(App);
};
}  
}  
#endif