panther7 · August 26, 2025 11:24
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html>
 <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Download Test</title>
 </head>
 <body>
    <button id="downloadBtn">download</button>

    <script>
        function downloadPixelGif() {
            const gifData = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';
            

            const link = document.createElement('a');
            link.href = gifData;
            link.download = 'pixel.gif';
            
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        }

        document.getElementById('downloadBtn').addEventListener('click', downloadPixelGif);
    </script>
 </body>
 </html>
diff --git a/main.js b/main.js
 // Modules to control application life and create native browser window
 const { app, BrowserWindow, session } = require('electron')
 const path = require('node:path')

 const partitionName = 'persist:test';

 function createWindow () {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 800,
    height: 600,
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      partition: partitionName
    }
  })

  // and load the index.html of the app.
  mainWindow.loadFile('index.html')

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

 // 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.whenReady().then(() => {
  createWindow()

  const ses = session.fromPartition(partitionName)
  ses.on('will-download', (event, item, webContents) => {
    console.log('hostWebContents', webContents.hostWebContents)
    event.preventDefault()
    item.cancel()
  })

  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 (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
 })

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

 // 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.
diff --git a/package.json b/package.json
 {
  "name": "cloudy-flame-protect-lwjdz",
  "productName": "cloudy-flame-protect-lwjdz",
  "description": "My Electron application description",
  "keywords": [],
  "main": "./main.js",
  "version": "1.0.0",
  "author": "filip.mosner",
  "scripts": {
    "start": "electron ."
  },
  "dependencies": {},
  "devDependencies": {
    "electron": "37.3.1"
  }
 }
diff --git a/renderer.js b/renderer.js
 /**
 * This file is loaded via the <script> tag in the index.html file and will
 * be executed in the renderer process for that window. No Node.js APIs are
 * available in this process because `nodeIntegration` is turned off and
 * `contextIsolation` is turned on. Use the contextBridge API in `preload.js`
 * to expose Node.js functionality from the main process.
 */
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Download Test</title>
	</head>
	<body>
	<button id="downloadBtn">download</button>

	<script>
	function downloadPixelGif() {
	const gifData = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';


	const link = document.createElement('a');
	link.href = gifData;
	link.download = 'pixel.gif';

	document.body.appendChild(link);
	link.click();
	document.body.removeChild(link);
	}

	document.getElementById('downloadBtn').addEventListener('click', downloadPixelGif);
	</script>
	</body>
	</html>
	// Modules to control application life and create native browser window
	const { app, BrowserWindow, session } = require('electron')
	const path = require('node:path')

	const partitionName = 'persist:test';

	function createWindow () {
	// Create the browser window.
	const mainWindow = new BrowserWindow({
	width: 800,
	height: 600,
	webPreferences: {
	preload: path.join(__dirname, 'preload.js'),
	partition: partitionName
	}
	})

	// and load the index.html of the app.
	mainWindow.loadFile('index.html')

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

	// 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.whenReady().then(() => {
	createWindow()

	const ses = session.fromPartition(partitionName)
	ses.on('will-download', (event, item, webContents) => {
	console.log('hostWebContents', webContents.hostWebContents)
	event.preventDefault()
	item.cancel()
	})

	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 (BrowserWindow.getAllWindows().length === 0) createWindow()
	})
	})

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

	// 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.
	{
	"name": "cloudy-flame-protect-lwjdz",
	"productName": "cloudy-flame-protect-lwjdz",
	"description": "My Electron application description",
	"keywords": [],
	"main": "./main.js",
	"version": "1.0.0",
	"author": "filip.mosner",
	"scripts": {
	"start": "electron ."
	},
	"dependencies": {},
	"devDependencies": {
	"electron": "37.3.1"
	}
	}
	/**
	* This file is loaded via the <script> tag in the index.html file and will
	* be executed in the renderer process for that window. No Node.js APIs are
	* available in this process because `nodeIntegration` is turned off and
	* `contextIsolation` is turned on. Use the contextBridge API in `preload.js`
	* to expose Node.js functionality from the main process.
	*/