32 lines
909 B
HTML
32 lines
909 B
HTML
<!doctype html>
|
|
<meta charset=utf-8>
|
|
<meta name=timeout content=long>
|
|
<title>Deletion of WindowProxy's indexed properties is not cached</title>
|
|
<link rel="help" href="https://html.spec.whatwg.org/multipage/window-object.html#windowproxy-delete">
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<div id=log></div>
|
|
<script>
|
|
const iframe = document.createElement("iframe");
|
|
iframe.srcdoc = "";
|
|
|
|
test(() => {
|
|
assert_equals(window.length, 0);
|
|
for (let i = 0; i < 1e5; i++) {
|
|
assert_true(delete window[0]);
|
|
}
|
|
|
|
document.body.append(iframe);
|
|
assert_false(delete window[0]);
|
|
}, "Absence of index '0' is not cached");
|
|
|
|
test(() => {
|
|
assert_equals(window.length, 1);
|
|
for (let i = 0; i < 1e5; i++) {
|
|
assert_false(delete window[0]);
|
|
}
|
|
|
|
iframe.remove();
|
|
assert_true(delete window[0]);
|
|
}, "Presence of index '0' is not cached");
|
|
</script>
|