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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title> CSS Scroll Snap Test: snap selection with targeted element</title>
<link rel="help" href="https://drafts.csswg.org/css-scroll-snap">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/common/utils.js"></script>
</head>
<body onload="runTest()">
<script>
async function fetchResult(key) {
const url = `/css/css-scroll-snap/snap-after-relayout/` +
`multiple-aligned-targets/stash.py?key=${key}`;
// We may need multiple requests. Return a promise that will be resolved
// when an actual response is received.
return new Promise(async (resolve) => {
async function fetchResultInternal(url) {
const response = await fetch(url);
const text = await response.text();
if (text) {
resolve(JSON.parse(text));
} else {
requestAnimationFrame(fetchResultInternal.bind(this, url));
}
}
fetchResultInternal(url);
});
}
function runTest() {
promise_test(async (t) => {
let key = token();
test_driver.bless("Open a URL", () => {
window.open(`prefer-targeted-element-main-frame-target.html` +
`?key=${key}`, "_blank", "noopener");
});
const result = await fetchResult(key);
assert_equals([result.passed, result.errors].join(), "9,");
}, "targeted box is selected snap target.");
}
</script>
</body>
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