Found this issue on a project, tested against the electron-quick-start and found the problem still exists.

Simply adding "frame: false" to the new BrowserWindow() call will cause it.
- Electron version: 0.37.5
- Operating system: Windows

![capture](https://cloud.githubusercontent.com/assets/5051169/14453254/a38c177c-008b-11e6-9e80-97c6a95c816e.PNG)

atom/browser/native_window.cc
ScheduleUnresponsiveEvent(50);
}
void NativeWindow::RendererResponsive(content::WebContents* source) {
  window_unresposive_closure_.Cancel();
  FOR_EACH_OBSERVER(NativeWindowObserver, observers_, OnRendererResponsive());
}
void NativeWindow::NotifyWindowClosed() {
  if (is_closed_)
    return;
  WindowList::RemoveWindow(this);
  is_closed_ = true;
  FOR_EACH_OBSERVER(NativeWindowObserver, observers_, OnWindowClosed());
}
void NativeWindow::NotifyWindowBlur() {
  FOR_EACH_OBSERVER(NativeWindowObserver, observers_, OnWindowBlur());
}
void NativeWindow::NotifyWindowFocus() {
  FOR_EACH_OBSERVER(NativeWindowObserver, observers_, OnWindowFocus());
}
void NativeWindow::NotifyWindowShow() {
  FOR_EACH_OBSERVER(NativeWindowObserver, observers_, OnWindowShow());
}
void NativeWindow::NotifyWindowHide() {