<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Hello World!</title> <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline';" /> </head> <body> <h1>Hello World!</h1> <p>After launching this application, you should see the system notification.</p> <p id="output">Click it to see the effect in this interface.</p> <script src="renderer.js"></script> </body> </html>