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Test Info:

<!DOCTYPE html>
<meta charset="utf-8" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/soft-navigation-heuristics/resources/soft-navigation-test-helper.js"></script>
<h1 id="ignore">Visible Text LCP Element</h1>
<div id="target" style="display:none">Hidden Text</div>
<div><button id="navigateButton">Navigate!</button></div>
<script>
promise_test(t => {
const helper = new SoftNavigationTestHelper(t);
const url = `/toggle`;
const modifyDOM = async () => {
const style = target.style;
setTimeout(() => style.display = '', 50);
return target.id;
};
return helper.clickAndExpectSoftNavigation(navigateButton, url, modifyDOM);
}, 'Soft Navigation Detection supports changing inline style display via Element.style asynchronously');
</script>