Update lib/auth/index.js

Co-authored-by: Max Wu <jackymaxj@gmail.com>

Author: hcyuser

lib/auth/index.js

@@ -53,8 +53,9 @@ authRouter.get('/logout', function (req, res) {
   if (config.debug && req.isAuthenticated()) {
     logger.debug('user logout: ' + req.user.id)
   }
-  req.logout(()=>{
-    logger.debug('Please implement logout callback here.')
+  req.logout((err) => {
+    if (err) { return next(err) }
+    res.redirect(config.serverURL + '/')
   })
   res.redirect(config.serverURL + '/')
 })