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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Test history.length during page load</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<script>
SimpleTest.waitForExplicitFinish();
function runTest(testAsyncLength) {
return new Promise(function(resolve) {
var initialLength;
var messageCount = 0;
var win;
window.onmessage = function(event) {
if (event.data.initialLength) {
initialLength = event.data.initialLength;
} else {
is(event.data.length, initialLength + 1,
"history.length should increase by one when loading a new page");
}
if (++messageCount == 3) {
win.close();
resolve();
}
}
win = window.open("file_history_length_during_pageload.html?testAsyncLength=" + testAsyncLength);
});
}
async function runTests() {
await runTest(!SpecialPowers.Services.appinfo.sessionHistoryInParent);
SimpleTest.finish();
}
</script>
</head>
<body onload="runTests();">
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test"></pre>
</body>
</html>
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