Setting up a server point that receives an ajax request in an ember.js. Doesn't work on app, works on calling from browser

I set up an action function in routes/tryingSomething.js

actions:{
        GetSquare: function(){
            var self = this;
            var num=document.getElementById("Number").value;
            console.log(num);
            self.get('ajax').request('findSquare', {
                  data: {
                        // filename1: x,
                        "inputNum": num
            },

                        timeout: 20000
                         // console.log(11)
            }).then(response => {

                         var a = response;
                         console.log(a);

        });
    }
  }

This calls server/index.js

var express = require('express');

 // usual stuff that was inbuilt while generating server 'ember g server index' 
 // and then .... 

var router = express.Router();
   router.use(bodyParser.json());
   router.use(bodyParser.urlencoded({
        extended: true
   }));
   router.get('/findSquare',function(req,res){
       console.log('####');
       res.status(200).json(25);
  });
};

• on running the server and sending value to the server, it says resource not found on the console
• on running the server and trying url '

localhost:4200/findSquare?inputNum=5

I'm getting 200 in terminal, while I'm not getting the '####' which i printed in the route.get('/findSquare') function. Now on terminal both are calling the same route, but one says 404 and the other, 200.

on running from controller action,

GET /findSquare?inputNum=5 404

on running from browser directly

GET /findSquare?inputNum=5 200