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// Navigation steps:
// 1- loads this page
// 2- resizes the window to (300, 300)
// 3- loads a data URL that resizes the window to (1000, 1000) and navigates back
// 4- loads this page which will restore the timer to check the window width to make sure it's > 300
function verifyWindowSizeAfterNavigateBackToCachedPage() {
document.body.innerHTML = (window.innerWidth > 300) ? 'PASS' : 'FAIL';
if (window.testRunner)
function navigateAwayAndBack() {
// Assigning to location does not create a history entry, so
// instead we simulate a link click.
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);
// Wait a long while so the verification is done after we have navigated back to the cached version of this page.
// This test makes use of the behavior where timers are restored on a cached page.
// We don't need to depend on this long timer when pageshow event is implemented for b/f cache (<rdar://problem/6440869>).
window.setTimeout("verifyWindowSizeAfterNavigateBackToCachedPage()", 1000);
function runTestStep() {
if (window.testRunner) {
testRunner.overridePreference("WebKitUsesPageCachePreferenceKey", 1);
window.resizeTo(300, 300);
// Wait a bit before navigating away to make sure we have done layout due to the resizing.
window.setTimeout("navigateAwayAndBack()", 200);
<body onload='runTestStep()' style="background: yellow">
<a id='anchor' href='data:text/html,<body onload="window.resizeTo(1000, 1000); history.back()"></body>'>go away, resize window, and come back</a>
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