- Electron version: 0.36.12, 0.37.6
- Operating system: Kubuntu 15.10

Try Ctrl+Shift+F, find progress freeze always.

atom/browser/common_web_contents_delegate.cc
#include "atom/browser/common_web_contents_delegate.h"
#include <set>
#include <string>
#include <vector>
#include "atom/browser/atom_browser_context.h"
#include "atom/browser/atom_javascript_dialog_manager.h"
#include "atom/browser/atom_security_state_model_client.h"
#include "atom/browser/native_window.h"
#include "atom/browser/ui/file_dialog.h"
#include "atom/browser/web_dialog_helper.h"
#include "atom/common/atom_constants.h"
#include "base/files/file_util.h"
#include "base/prefs/pref_service.h"
#include "base/prefs/scoped_user_pref_update.h"
#include "chrome/browser/printing/print_preview_message_handler.h"
#include "chrome/browser/printing/print_view_manager_basic.h"
#include "chrome/browser/ui/browser_dialogs.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_security_policy.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"