My flash messages seem to require an additional manual reload of the page for them to appear.

Here’s an example of how I’m using it:

    if (password.length < 12) {
      req.flash('error', 'Password must be at least 12 characters long.');
      return res.redirect('/signup');
    }

It then redirects to /signup which displays this pug view:

extends auth

block content
  h4.card-title Sign Up

  // Debug output for flash messages
  pre= JSON.stringify(flashMessages)

  if flashMessages.error
    .alert.alert-danger
    each msg in flashMessages.error
      div= msg

Upon redirect, no errors are displayed but if I refresh the page, the errors then appear.

Here’s where I configure it:

// Initialize Session Store
const SequelizeStore = require('connect-session-sequelize')(session.Store);

// Initialize Express Web App
const app = express();

// add various locals
app.locals.config = config;
app.locals.moment = moment;

// Initialize HTTP Server
const server = http.createServer(app);

//app.use(cookieParser(process.env.APP_KEY)); apparently don't need this with express-session 1.15 and later (we have 1.18)

// setup morgan to log HTTP requests to winston
app.use(morgan('tiny', { stream: { write: message => logger.debug(message.trim()) } }));

// Initialize Session
const sessionStore = new SequelizeStore({ db: sequelize });

app.use(session({
    secret: process.env.APP_KEY,
    store: sessionStore, // Use SequelizeStore as the session store
    resave: false, // 'resave' and 'saveUninitialized' set as per express-session recommendations
    saveUninitialized: false,
    cookie: { secure: process.env.NODE_ENV === 'production' }
}));

// Sync the session store table
sessionStore.sync();

I tried searching for a solution but couldn’t find one.
Thanks in advance