logout controller has a bug when destroying the session

[drebel]

set up the post request to log out but running into problems with the implentation of the postLogout controller in authcontroller

postLogout: (req, res) => {
// console.log(req)
// res.send('hey back')
console.log('inside logout')
console.log('before logout - req.session:', req.session)
try{
req.logout(() => {
console.log('User has logged out')
console.log('after logout - req.session:', req.session)

    req.session.destroy((err) => {
      if(err){
        console.log('Error: Failed to destory the session during logout', err)
      }
      req.user = null

      res.status(200).send('User logged out')

    })
  })

}catch(err){
  console.error('error during logout:', err)
  res.status(500).send('Internal Server Error')
}

}
}

right now i had to downgrade the passport package to 0.5.3 instead of most recent 0.7.0

when i tried to destroy the session on log out it would throw an error described by others here
https://stackoverflow.com/questions/50454992/req-session-destroy-and-passport-logout-arent-destroying-cookie-on-client-side
and here
jaredhanson/passport#907

i might be misunderstanding how logout works but i think i will move on to the next part because i believe users can log in and need to come back to the logout bug later