<html> <body> <script type="text/javascript" charset="utf-8"> const {ipcRenderer} = require('electron') let echo let requireError try { echo = require('echo') } catch (error) { requireError = error } if (requireError != null) { ipcRenderer.send('answer', `Require echo failed: ${requireError.message}`) } else { ipcRenderer.send('answer', typeof echo) } </script> </body> </html>