<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>Page Visibility Null Default View Test</title> <link rel="author" title="Microsoft" href="http://www.microsoft.com/" /> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script type="text/javascript" src="resources/pagevistestharness.js"></script> <script type="text/javascript" > setup({explicit_done: true}); function onload_test() { // inject a windowless subdocument as a child of the root document <html> element var subDoc = document.implementation.createDocument('resources/blank_page_green.html', 'html', null); // Test precondition: ensure subdocument has a null default view test_true(subDoc.defaultView == null, "windowless subdocument generated for test has a null default view"); // check that feature exists within subdocument test_feature_exists(subDoc, 'windowless subdocument'); // check that the subdocument has a hidden visibility state test_true(subDoc.hidden, "hidden == true for windowless subdocuments with a null default view"); test_equals(subDoc.visibilityState, VISIBILITY_STATES.HIDDEN, "visibilityState == " + VISIBILITY_STATES.HIDDEN + " for windowless subdocuments with a null default view"); done(); } </script> </head> <body onload="onload_test()"> <h1>Description</h1> <p>This test validates that document.hidden == false and document.visibilityState == "visible" for windowless subdocuments.</p> <div id="log"></div> </body> </html>