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-rw-r--r--testing/web-platform/tests/largest-contentful-paint/multiple-redirects-TAO.html66
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diff --git a/testing/web-platform/tests/largest-contentful-paint/multiple-redirects-TAO.html b/testing/web-platform/tests/largest-contentful-paint/multiple-redirects-TAO.html
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+<!DOCTYPE HTML>
+<html>
+<head>
+<meta charset="utf-8" />
+<title>This test validates some Timing-Allow-Origin header usage in multiple redirects.</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>
+</head>
+<img id='image'></img>
+<body>
+<script>
+setup({"hide_test_state": true});
+async_test(t => {
+ assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented");
+ let destUrl = get_host_info().HTTP_REMOTE_ORIGIN
+ + '/element-timing/resources/multiple-redirects.py?';
+ destUrl += 'redirect_count=2';
+ // The final resource has '*' in TAO header, so will not affect the result.
+ destUrl += '&final_resource=/element-timing/resources/circle-tao.svg';
+ destUrl += '&origin1=' + get_host_info().UNAUTHENTICATED_ORIGIN;
+ destUrl += '&origin2=' + get_host_info().HTTP_REMOTE_ORIGIN;
+ const taoCombinations = [
+ {tao1: location.origin, tao2: location.origin, passes: false},
+ {tao1: location.origin, tao2: get_host_info().HTTP_REMOTE_ORIGIN, passes: false},
+ {tao1: location.origin, tao2: 'null', passes: true},
+ {tao1: location.origin, tao2: '*', passes: true},
+ {tao1: location.origin, tao2: location.origin, passes: false},
+ {tao1: 'null', tao2: '*', passes: false},
+ {tao1: '*', tao2: 'null', passes: true},
+ ];
+ const sizes = [28*28, 33*33, 40*40, 50*50, 66*66, 100*100, 200*200];
+ function getURL(item) {
+ return destUrl + '&tao1=' + item.tao1 + '&tao2=' + item.tao2;
+ }
+ function setImage(index) {
+ const image = document.getElementById('image');
+ const item = taoCombinations[index];
+ image.src = getURL(item);
+ // Use monotonic sizes to get all the images!
+ image.width = 200 / (7 - index);
+ }
+ let observedCount = 0;
+ let beforeLoad = performance.now();
+ new PerformanceObserver(t.step_func(entries => {
+ assert_equals(entries.getEntries().length, 1, 'There should be a single entry.');
+ const e = entries.getEntries()[0];
+ const item = taoCombinations[observedCount];
+ const url = getURL(item);
+ const options = item.passes ? [] : ['renderTimeIs0'];
+ checkImage(e, url, 'image', sizes[observedCount], beforeLoad, options);
+ observedCount++;
+ if (observedCount === taoCombinations.length) {
+ t.done();
+ } else {
+ beforeLoad = performance.now();
+ setImage(observedCount);
+ }
+ })).observe({entryTypes: ['largest-contentful-paint']});
+ setImage(0);
+}, 'Cross-origin images with passing/failing TAO should/shouldn\'t have its renderTime set.');
+</script>
+</body>
+</html>
+