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<!DOCTYPE html>
<link rel="author" href="mailto:masonf@chromium.org">
<link rel="help" href="https://issues.chromium.org/issues/324112201">
<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>
<div id=container style="border:1px solid red; width: 100px;">
<template shadowrootmode=open shadowrootdelegatesfocus>
<slot></slot>
</template>
<a id=anchor href="#heading">anchor</a>
<div style="height:2000px"></div>
<h1 id=heading>Heading</h1>
</div>
<script>
promise_test(async (t) => {
t.add_cleanup(() => container.remove());
let scrolled = new Promise(resolve => {
document.addEventListener('scrollend',resolve,{once:true});
})
await test_driver.click(anchor);
await scrolled;
scrolled = false;
document.addEventListener('scroll',() => {
scrolled = true;
});
await test_driver.click(heading);
await new Promise(resolve => t.step_timeout(resolve, 500));
assert_false(scrolled,'The document should not scroll');
},'delegatesFocus shouldn\'t cause extra focus steps');
</script>
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