I'm new on JS. I'm developing a Webview that opens an specific URL. How can I do an action when a specific URL is detected?. I should download a pdf from the URL that is detected. I tried with the the function win.webContents.getURL() but it only showed me the URL of the webpage I want to show.

Thanks!

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

const createWindow = () => {
    const win = new BrowserWindow({
      width: 1024,
      height: 1024
    })
  
    win.loadURL('https://google.com/')
  }

app.whenReady().then(() => {
    createWindow()
})

app.on('did-finish-load', () => {
    console.log('finished to load ');
 })