main.js

// Modules to control application life and create native browser window
const {app, BrowserWindow} = require('electron')
const path = require('path');

// 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({
    title: "[ - Digital Clock - ]",
    width: 530,
    height: 340,
    x: 121,
    y: 121,
    webPreferences: {
      nodeIntegration: true
    },
    /*minimizable: false,
    maximizable: false,*/
    resizable: false,
    devTools: false,
    alwaysOnTop: true,
    darkTheme: true,
    icon: path.join(__dirname, 'icons/png/128x128.png')
  })

  // and load the index.html of the app.
  //mainWindow.loadFile('index.html')
  mainWindow.loadURL("https://t-i-m-e.github.io/?zoom=0.5&footer=false&title=%5B%20-%20Digital%20Clock%20-%20%5D");

  // Open the DevTools.
  // mainWindow.webContents.openDevTools()

  // 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;
    app.quit();
  });

  mainWindow.webContents.on("devtools-opened", function() {
    mainWindow.webContents.closeDevTools();
  });
}

// 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 macOS 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.