diff --git a/index.html b/index.html
index 6067932..bcac184 100644
--- a/index.html
+++ b/index.html
@@ -1,16 +1,17 @@
 <!DOCTYPE html>
+<!DOCTYPE html>
 <html>
-  <head>
+<head>
     <meta charset="UTF-8">
-    <!-- https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP -->
-    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'">
-    <meta http-equiv="X-Content-Security-Policy" content="default-src 'self'; script-src 'self'">
     <title>Hello World!</title>
-  </head>
-  <body>
+    <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline';" />
+</head>
+<body>
     <h1>Hello World!</h1>
-    We are using Node.js <span id="node-version"></span>,
-    Chromium <span id="chrome-version"></span>,
-    and Electron <span id="electron-version"></span>.
-  </body>
+    <p>
+        We are using Node.js <span id="node-version"></span>,
+        Chromium <span id="chrome-version"></span>,
+        and Electron <span id="electron-version"></span>.
+    </p>
+</body>
 </html>
\ No newline at end of file
diff --git a/main.js b/main.js
index 7c125bd..77812d9 100644
--- a/main.js
+++ b/main.js
@@ -1,8 +1,13 @@
 const { app, BrowserWindow } = require('electron')
-const createWindow = () => {
+const path = require('path')
+
+function createWindow () {
     const win = new BrowserWindow({
       width: 800,
-      height: 600
+      height: 600,
+      webPreferences: {
+        preload: path.join(__dirname, 'preload.js')
+      }
     })
   
     win.loadFile('index.html')
