main.js

const {app, session, BrowserWindow} = require('electron');
const path = require('path');
const url = require('url');
require('dotenv').config();

let userAgent = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.117 Safari/537.36';

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow;

function createWindow () {
  // Create the browser window.
  mainWindow = new BrowserWindow({
    width: 1280,
    height: 800,
    icon: path.join(__dirname, 'assets/icons/png/picto.png'),
    webPreferences: {
      nodeIntegration: true,
      nodeIntegrationInWorker: false,
      webviewTag: true,
      preload: path.join(__dirname, 'preload.js')
    }
  });

  if(process.env.DEBUG){
    mainWindow.webContents.openDevTools();
  }

  // disable window main menu
  mainWindow.setMenu(null);

  // and load the index.html of the app.
  mainWindow.loadURL(`file://${__dirname}/index.html`);

  session.defaultSession.webRequest.onBeforeSendHeaders((details, callback) => {
    details.requestHeaders['User-Agent'] = userAgent;
    callback({ cancel: false, requestHeaders: details.requestHeaders });
  });

  // Emitted when the window is closed.
  mainWindow.on('closed', function () {
    // Dereference the window object, usually you would store windows
    // in an array if your app supports multi windows, this is the time
    // when you should delete the corresponding element.
    mainWindow = null
  })
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow);

// Quit when all windows are closed.
app.on('window-all-closed', function () {
  // On macOS it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform !== 'darwin') app.quit()
});

app.on('activate', function () {
  // On OS X it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (mainWindow === null) {
    createWindow()
  }
});

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.