<!DOCTYPE html>
<html>
<script>
window.expando = 42;
window.shadowedIframe = 42;
Object.setPrototypeOf(window, Object.create(Window.prototype,
{
shadowedIframe: { value: 42 },
iframe: { value: 42 },
document: { value: 42 },
addEventListener: { value: 42 },
toString: { value: 42 }
}));
window.documentElement.expando = 42;
Object.defineProperty(window.documentElement, "version", { value: 42 });
</script>
<iframe name="shadowedIframe" id="shadowedIframe"></iframe>
<iframe name="iframe" id="iframe"></iframe>
<iframe name="document" id="document"></iframe>
<iframe name="self" id="self"></iframe>
<iframe name="addEventListener" id="addEventListener"></iframe>
<iframe name="toString" id="toString"></iframe>
<iframe name="item" id="item"></iframe>
</html>