I’m using express-rate-limit to limit the number of connection attempts.

homeController.js

const express = require('express');
const router = express.Router();

//limiter à 5 tentatives de log sur 5 minutes
const limitter = require("express-rate-limit");
const signInlimitter = limitter({ 
    windowMs: 5*60*1000, 
    limit: 1, 
    handler: (req, res, next) => {
        const date = new Date(req.rateLimit.resetTime);
        req.rateLimit.resetTime = date.toLocaleTimeString();
        res.status(429).send(`Trops de tentatives ! Vous pourez réessayer à ${req.rateLimit.resetTime}.`);
    }
});

const homeRegex = /^/(home)?$/;

const homeView = (req, res) => { res.render("home.ejs", { message: "" }); };

router.route(homeRegex).get(homeView).post(signInlimitter, homeView);

module.exports = router;

index.js

...
app.use('/', require('./controllers/homeController')); 
...

So far, not too complicated.
However, when the limit is exceeded, it refreshes the entire page, and only displays the message.

This doesn’t suit me because I would like to display the message in a textbox or an alert() without recalling everything, in the same idea as with a fetch (or ajax).

Thanks !

I have the ejs packages if that helps.