const { ipcRenderer } = require('electron'); document.addEventListener('DOMContentLoaded', (event) => { const outerFrame = document.querySelector('#outer-frame'); if (outerFrame) { outerFrame.onload = function () { const pdframe = outerFrame.contentWindow.document.getElementById('pdf-frame'); if (pdframe) { pdframe.contentWindow.addEventListener('pdf-loaded', (event) => { ipcRenderer.send('pdf-loaded', event.detail); }); } }; } });