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Test Info: Warnings

<meta charset=utf-8>
<title>Largest Contentful Paint: observe cross-origin images but without renderTime.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/largest-contentful-paint-helpers.js"></script>
async_test(function (t) {
assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented");
const beforeLoad =;
const observer = new PerformanceObserver(
t.step_func_done(function(entryList) {
assert_equals(entryList.getEntries().length, 1);
const entry = entryList.getEntries()[0];
// blue.png is 133 x 106.
const size = 133 * 106;
checkImage(entry, url, 'image_id', size, beforeLoad, ['renderTimeIs0']);
observer.observe({type: 'largest-contentful-paint', buffered: true});
}, 'Cross-origin image is observable, with renderTime equal to 0.');