<!DOCTYPE HTML> <meta charset=utf-8> <title>Non-Tao Image Subsequent LCP candidates. </title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="resources/largest-contentful-paint-helpers.js"></script> <script src="/common/get-host-info.sub.js"></script> <body> <script> promise_test(async t => { let small_image_path = '/images/green-100x50.png'; let big_image_path = '/images/green-256x256.png'; let non_tao_scheme = get_host_info().OTHER_ORIGIN; // Load non-tao image with 0 opacity so it won't trigger an LCP entry. big_image = await loadImage(non_tao_scheme + big_image_path, true); // Load a smaller non-tao image with 0 opacity. small_image = await loadImage(non_tao_scheme + small_image_path, true); // Add text so that FCP is set. add_text('text'); // wait for 1 animation frame so that FCP is set. await raf(); // The url of text LCP element is empty. lcp = await getLCPStartTime(''); // Rendered loaded image after FCP. small_image.style.opacity = 1; lcp = await getLCPStartTime(small_image_path); fcp = getFCPStartTime(); checkLCPEntryForNonTaoImages({ 'lcp': lcp, 'fcp': fcp }); // This is to verify subsequent LCP candidates also have the start time set correctly. big_image.style.opacity = 1; lcp = await getLCPStartTime(big_image_path); checkLCPEntryForNonTaoImages({ 'lcp': lcp, 'fcp': fcp }); }, 'Non-Tao Image Subsequent LCP candidates.') </script> </body>