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<!DOCTYPE html>
<meta charset="utf-8">
<title>Child frame marked as frozen</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<div style="width: 200px; height: 4000px"></div>
<script>
async_test((t) => {
var child = document.createElement('iframe');
var loaded = false;
var frozen = false;
window.addEventListener('message', t.step_func((e) => {
if (e.data == "load") {
loaded = true;
} else if (e.data == "freeze") {
assert_true(loaded);
frozen = true;
child.scrollIntoView();
} else if (e.data == "resume") {
assert_true(loaded);
assert_true(frozen);
t.done();
}
}));
child.allow = "execution-while-out-of-viewport 'none'";
child.src = "resources/subframe.html";
document.body.appendChild(child);
}, "Child frame frozen");
</script>
</body>
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