title: RedisStore - TypeError: Cannot read property 'prototype' of undefined
body: <p>When I run the app I get that message.
  I am trying to follow the instructions described <a href="https://www.npmjs.org/package/passport.socket.io" rel="noreferrer">here</a></p>
  
  <p>This is a portion of my app.js file</p>
  
  <pre><code>var express = require('express');
  var RedisStore = require('connect-redis')(express); 
  var redisStore = new RedisStore(); // setup redis
  var flash = require('connect-flash');
  var passport = require('passport');
  var LocalStrategy = require('passport-local').Strategy;
  var routes  = require('./routes')
  </code></pre>