AngularJs App engine res.redirect not working?

[Sudhanshu Gaur]

I have my Angularjs website and I am trying to route all my Http traffic to Https and for that, I have written below code but it is not working, every time I am opening my website on Http redirect is not happening.

var express = require('express');
var app = express();

app.use(express.static(__dirname + '/public')); // Website part added
var bodyParser = require('body-parser')
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }))

app.use(function(req,res,next) {

    if(req.headers["x-forwarded-proto"] == "http") {

        res.redirect("https://" + req.headers.host + req.url);
        return next();
    } else {
        console.log('Request was not HTTP');
        return next();
    } 
});

app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.get('*', function(req, res) {
    res.sendFile(__dirname + '/public/index.html');
});

Can anyone please tell me why this is not working ??

Edit - I noticed that whenever I am opening my website then most of the times this middleware is not getting called. How can this be possible ??

Edit - I have my set base href="/" in my index.html will it cause any problem.

[Kenworth (Google Cloud Platform)]

You have to uploaded first your SSL certificate and enable SSL security settings. You can follow this article on how to secure custom domains with SSL.