|  | <!DOCTYPE html> | 
|  | <html> | 
|  | <head> | 
|  | <meta charset="utf-8" /> | 
|  | <title>window.performance.timing attributes on an initial navigation</title> | 
|  | <link rel="author" title="Google" href="http://www.google.com/" /> | 
|  | <link rel="help" href="http://www.w3.org/TR/navigation-timing/#sec-navigation-timing-interface"/> | 
|  | <link rel="help" href="http://www.w3.org/TR/navigation-timing/#sec-navigation-info-interface"/> | 
|  | <script src="/resources/testharness.js"></script> | 
|  | <script src="/resources/testharnessreport.js"></script> | 
|  | <script src="/common/performance-timeline-utils.js"></script> | 
|  | <script src="resources/webperftestharness.js"></script> | 
|  |  | 
|  | <script> | 
|  | setup({explicit_done: true}); | 
|  |  | 
|  | var frame; | 
|  | function onload_test() | 
|  | { | 
|  | frame = document.getElementById("frameContext"); | 
|  | test_namespace('navigation'); | 
|  | if (performanceNamespace) | 
|  | { | 
|  | test_true(frame.contentWindow.performance.navigation.type == performanceNamespace.navigation.TYPE_NAVIGATE, | 
|  | 'timing.navigation.type is TYPE_NAVIGATE'); | 
|  |  | 
|  | test_equals(frame.contentWindow.performance.timing.unloadEventStart, 0, 'timing.unloadEventStart == 0 on navigation with no previous document'); | 
|  | test_equals(frame.contentWindow.performance.timing.unloadEventEnd, 0, 'timing.unloadEventEnd == 0 navigation with no previous document'); | 
|  | } | 
|  | done(); | 
|  | } | 
|  | </script> | 
|  |  | 
|  | </head> | 
|  | <body onload="onload_test();"> | 
|  | <h1>Description</h1> | 
|  | <p>This test validates the unload event times are 0 when there is no previous document.</p> | 
|  |  | 
|  | <div id="log"></div><br /> | 
|  | <iframe id="frameContext" src="resources/blank_page_green.html" style="width: 250px; height: 250px;"></iframe> | 
|  | </body> | 
|  | </html> |