express POST req.body parser is empty

I saw similar issues on Stack Overflow and found solution to use of:

app.use(bodyParser.urlencoded({ extended: true }));app.use(bodyParser.json());

But while printing log req.body is blank.

app.js contents:

var express = require('express');var path = require('path');var app = express();var bodyParser = require('body-parser');// Define the port to run onapp.set('port', 8888);app.use(express.static(path.join(__dirname, '/webapp/public')));app.use(bodyParser.urlencoded({ extended: true }));app.use(bodyParser.json());app.post('/getsolution', function (req, res) {    console.log("request body is",req.body); //----req.body is blank here});

Post request code from angular is as below

var parameters = JSON.stringify({ "urlPath": $location.path()});$http.post('http://localhost:8888/getsolution/', parameters)    .then(function (response) {        if (response.data == "") {            $window.location.href = 'http://localhost:8888/';        } else {            $scope.puzzle = response.data;            $scope.puzzleSolution = response.data.solution;        }    }).catch(function onError(response) {    $window.location.href = 'http://localhost:8888/';});

Log printing on console is

request body is {}

When using with below snippet it is not working

var app = angular.module('puzzleappsolution', [], function ($locationProvider) {    $locationProvider.html5Mode(true); });//----->It is now working

But when using below it is working

var app = angular.module('puzzleappsolution', []);