mp4-handle

main.js

const { net, protocol, app, BrowserWindow } = require('electron')

function createWindow () {
  const mainWindow = new BrowserWindow({
    width: 800,
    height: 600
  })

  mainWindow.loadURL('file:///PUT_LOCAL_LOCAL_MP4_FILE');
}

app.whenReady().then(() => { 
  protocol.handle('file', async (req) => {
    return net.fetch(req, {
      bypassCustomProtocolHandlers: true
    });
  });

  createWindow();
});

package.json

{
  "name": "maddening-conversation-phone-kmkem",
  "productName": "maddening-conversation-phone-kmkem",
  "description": "My Electron application description",
  "keywords": [],
  "main": "./main.js",
  "version": "1.0.0",
  "author": "brand",
  "scripts": {
    "start": "electron ."
  },
  "dependencies": {},
  "devDependencies": {
    "electron": "27.0.3"
  }
}