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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Navigation API + ViewTransition trigger a soft navigation.</title>
<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="resources/soft-navigation-helper.js"></script>
</head>
<body>
<main id=main>
<div>
<a id=link href="foobar.html">Click me!</a>
</div>
</main>
<script>
let key;
window.onload = async () => {
// Wait for after the load event so that the navigation doesn't get
// converted into a replace navigation.
await new Promise(r => step_timeout(r, 0));
const navigate_callback = e => {
e.intercept({
async handler() {
const lcp_promise = new Promise(resolve => {
(new PerformanceObserver(list => resolve())).observe(
{type: 'largest-contentful-paint',
includeSoftNavigationObservations: true});
});
const transition = document.startViewTransition(async () => {
const main = document.getElementById('main');
main.innerHTML = '<img id="image" src="/images/blue.png?' +
Math.random() + '">';
const img = document.getElementById("image");
});
await transition.updateCallbackDone;
await lcp_promise;
}
});
timestamps[counter]["eventEnd"] = performance.now();
};
const link = document.getElementById("link");
testNavigationApi("Navigation API interception handler + " +
"startViewTransition properly detects soft navigations",
navigate_callback, link);
};
</script>
</body>
</html>
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