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<!DOCTYPE html>
<meta charset="UTF-8">
<title>history.length value on window.open()-ed window</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/helpers.js"></script>
<body></body>
<script>
/*
When a new window is opened through window.open() it will contain the initial
empty document, and the history.length value should be 1.
*/
promise_test(async t => {
const openedWindow = windowOpenNoURL(t);
assert_equals(openedWindow.history.length, 1,
"history.length should start at 1 for newly opened window");
}, "Starting history.length for window.open()");
promise_test(async t => {
const openedWindow = windowOpenAboutBlank(t);
assert_equals(openedWindow.history.length, 1,
"history.length should start at 1 for newly opened window");
}, "Starting history.length for window.open(about:blank)");
promise_test(async t => {
const openedWindow = windowOpen204(t);
assert_equals(openedWindow.history.length, 1,
"history.length should start at 1 for newly opened window");
}, "Starting history.length for window.open(url-with-204-response)");
</script>
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