<!DOCTYPE html> <html> <head> <meta name='author' title='Google' href='http://www.google.com'> <meta name='assert' content='Shadow DOM should not leak via window.frames.'> <link rel='help' href='https://w3c.github.io/webcomponents/spec/shadow/'> <script src='/resources/testharness.js'></script> <script src='/resources/testharnessreport.js'></script> </head> <body> <div id='log'></div> <iframe src='about:blank' name='mainFrame1'></iframe> <div id='host-open'></div> <div id='host-closed'></div> </body> <script> 'use strict'; var host_open = document.getElementById('host-open'); var root_open = host_open.attachShadow({mode: 'open'}); root_open.innerHTML = '<iframe src="about:blank" name="shadowFrame1"></iframe>'; var host_closed = document.getElementById('host-closed'); var root_closed = host_closed.attachShadow({mode: 'closed'}); root_closed.innerHTML = '<iframe src="about:blank" name="shadowFrame2"></iframe>'; test(() => { assert_equals(window.frames.length, 1, 'window.frames should return only frames in document.'); assert_equals(window.frames[0].name, 'mainFrame1', 'window.frames[0] should be mainFrame1.'); assert_equals(window.frames['mainFrame1'], window.frames[0], 'window.frames[\'mainFrame1\'] should be equal to mainFrame1.'); assert_equals(window.frames['shadowFrame1'], undefined, 'shadowFrame1 should not leak.'); assert_equals(window.frames['shadowFrame2'], undefined, 'shadowFrame2 should not leak.'); }, 'window.frames should not leak frames in Shadow DOM.'); </script> </html>