Merge pull request #211 from purujitb/master

added new response headers

server.ts

@@ -1,19 +1,19 @@
 /***************************************************************************************************
  * Load `$localize` onto the global scope - used if i18n tags appear in Angular templates.
  */
+import { APP_BASE_HREF } from '@angular/common';
 import '@angular/localize/init';
-import 'zone.js/dist/zone-node';
-
 import { ngExpressEngine } from '@nguniversal/express-engine';
 import * as express from 'express';
-import { join } from 'path';
-
-import { AppServerModule } from './src/main.server';
-import { APP_BASE_HREF } from '@angular/common';
-import { existsSync } from 'fs';
 import * as fs from 'fs';
+import { existsSync } from 'fs';
 import * as nodemailer from 'nodemailer';
-import {tsParticles} from 'tsparticles';
+import { join } from 'path';
+import { tsParticles } from 'tsparticles';
+import 'zone.js/dist/zone-node';
+import { AppServerModule } from './src/main.server';
+
+
 
 const domino = require('domino');
 const template = fs.readFileSync(join('dist', 'fe-website', 'browser', 'index.html')).toString();
@@ -29,6 +29,13 @@ export function app() {
   const distFolder = join(process.cwd(), 'dist/fe-website/browser');
   const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';
 
+  server.use(function (req, res, next) {
+    res.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate');
+    res.setHeader('Pragma', 'no-cache');
+    res.setHeader('Expires', '0');
+    next();
+  });
+
   server.use(express.urlencoded()) // add to handle slack form
 
   // Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
@@ -39,8 +46,6 @@ export function app() {
   server.set('view engine', 'html');
   server.set('views', distFolder);
 
-  // Example Express Rest API endpoints
-  // server.get('/api/**', (req, res) => { });
   // Serve static files from /browser
   server.get('*.*', express.static(distFolder, {
     maxAge: '1y'
@@ -52,14 +57,11 @@ export function app() {
   });
 
   //add to handle slack form
-  server.post('/submit-form', (req, res)=>{
+  server.post('/submit-form', (req, res) => {
     let content = req.body;
-    // console.log("request came");
-    // console.log(req);
     sendMail(content, info => {
       // parse the 250 code from info.response
-      // console.log("in callback");
-      res.redirect('/community?slackEmailResponse='+info.response.split(' ')[0]);
+      res.redirect('/community?slackEmailResponse=' + info.response.split(' ')[0]);
     });
   })
 
@@ -88,8 +90,6 @@ if (moduleFilename === __filename || moduleFilename.includes('iisnode')) {
 
 
 async function sendMail(content, callback) {
-  // console.log("in sendEmail");
-  // console.log(content);
   // create reusable transporter object using the default SMTP transport
   let transporter = nodemailer.createTransport({
     host: "email-smtp.us-west-2.amazonaws.com",
@@ -113,7 +113,7 @@ async function sendMail(content, callback) {
 
             <li> Have you contributed to any open source ML based framework? <br>
                 ${content.exp}, ${content.otherExp}
-          </ul> 
+          </ul>
       `
   };
 
@@ -123,3 +123,4 @@ async function sendMail(content, callback) {
 }
 
 export * from './src/main.server';
+