Support pdf url (#256)

* Add PDF suggested filename

* Add pdf filename support

Author: jonathanKingston

features/download/index.html

@@ -21,6 +21,7 @@
   <li><a href="#" class="init-iframe-download" data-type="json" >Init iframe JSON load</a>
   <li><a href="#" class="init-iframe-download" data-type="json" data-suggestedfilename="./../path/path/testComplex.json.">Init iframe JSON load, complex suggested path</a>
   <li><a href="#" class="init-iframe-download" data-type="pdf" >Init iframe PDF load</a>
+  <li><a href="#" class="init-iframe-download" data-type="pdf" data-suggestedfilename="test-929_new.pdf">Init iframe PDF load, suggested filename</a>
 </ul>
 <div id="iframe-container"></div>
 

features/download/server/routes.js

@@ -1,11 +1,11 @@
 const express = require('express');
 const router = express.Router();
 
-function downloadPDF (res) {
-    res.download('./features/download/download.pdf');
+function downloadPDF (res, suggestedFilename) {
+    res.download('./features/download/download.pdf', suggestedFilename);
 }
 
-function downloadJSON (res, suggestedFilename) {
+function downloadJSON (res, suggestedFilename = 'data.json') {
     const json = JSON.stringify({ example: 'test' });
     const buf = Buffer.from(json);
     res.writeHead(200, {
@@ -17,13 +17,13 @@ function downloadJSON (res, suggestedFilename) {
 }
 
 router.get('/file/:type', (req, res) => {
-    const suggestedFilename = req.query.suggestedFilename || 'data.json';
+    const suggestedFilename = req.query.suggestedFilename;
     switch (req.params.type) {
     case 'json':
         downloadJSON(res, suggestedFilename);
         break;
     case 'pdf':
-        downloadPDF(res);
+        downloadPDF(res, suggestedFilename);
         break;
     }
 });