# Use After Free

- Create webpage object in JavaScript
- Close webpage in JavaScript
- Do something with webpage in JavaScript

```javascript
var phantom = this.phantom || {exit: function () {}};
var page = require('webpage').create();
// code, code, code…
page.open('about:blank', function () {
  page.close();
  console.log('☮ out!');
  phantom.exit();
});
```