When closing last window, make sure buffer window is closed so that app exits

app/browser/windows.js

@@ -334,6 +334,16 @@ const api = {
  win.once('closed', () => {
  appActions.windowClosed(windowId)
  cleanupWindow(windowId)
+ // if we have a bufferWindow, the 'window-all-closed'
+ // event will not fire once the last window is closed,
+ // so close the buffer window if this is the last closed window
+ // apart from the buffer window
+ if (!platformUtil.isDarwin() && api.getBufferWindow()) {
+ const remainingWindows = api.getAllRendererWindows().filter(win => win !== api.getBufferWindow())
+ if (!remainingWindows.length) {
+ api.closeBufferWindow()
+ }
+ }
  })
  win.on('blur', () => {
  appActions.windowBlurred(windowId)