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Update web-platform-tests to revision 3f3849c5d05f9350fad0b06d3bb3ae30d7e18d14
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13
tests/wpt/web-platform-tests/loading/lazyload/common.js
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tests/wpt/web-platform-tests/loading/lazyload/common.js
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// Helper to access the element, its associated loading promise, and also to
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// resolve the promise.
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class ElementLoadPromise {
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constructor(element_id) {
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this.element_id = element_id;
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this.promise = new Promise(resolve => {
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this.resolve = resolve
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});
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}
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element() {
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return document.getElementById(this.element_id);
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}
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}
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<!DOCTYPE html>
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<head>
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<title>Deferred iframes and images with loading='lazy' use the original base URL specified at the parse time</title>
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<link rel="author" title="Raj T" href="mailto:rajendrant@chromium.org">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="common.js"></script>
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</head>
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<!--
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Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
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-->
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<script>
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const below_viewport_iframe = new ElementLoadPromise("below_viewport_iframe");
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// Change the base URL and scroll down to load the deferred elements.
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window.addEventListener("load", () => {
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window.history.pushState(1, document.title, '/invalid-url-where-no-subresources-exist/')
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below_viewport_iframe.element().scrollIntoView();
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});
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async_test(function(t) {
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below_viewport_iframe.promise.then(
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t.step_func_done(function() {
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assert_true(below_viewport_iframe.element().contentDocument.body.innerHTML.includes("<p>Subframe</p>"));
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}));
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}, "Test that when deferred iframe is loaded, it uses the base URL computed at parse time.");
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</script>
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<body>
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<div style="height:10000px;"></div>
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<script>
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// Change the base URL so that the iframe makes use of that in its relative
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// URL to absolute URL computation at parse time.
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window.history.pushState(1, document.title, 'resources/')
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</script>
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<iframe id="below_viewport_iframe" src="subframe.html" loading="lazy" width="200px" height="100px" onload="below_viewport_iframe.resolve();">
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</iframe>
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</body>
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<!DOCTYPE html>
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<head>
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<title>Deferred iframes and images with loading='lazy' use the original referrer-policy specified at the parse time</title>
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<link rel="author" title="Raj T" href="mailto:rajendrant@chromium.org">
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<link rel="help" href="https://github.com/scott-little/lazyload">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="common.js"></script>
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</head>
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<!--
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Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
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-->
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<script>
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const below_viewport_iframe = new ElementLoadPromise("below_viewport_iframe");
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// Change the referrer-policy and scroll down to load the deferred elements.
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window.addEventListener("load", () => {
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below_viewport_iframe.element().referrerPolicy = "no-referrer";
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document.getElementById("below_viewport_iframe").scrollIntoView();
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});
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async_test(function(t) {
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below_viewport_iframe.promise.then(
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t.step_func_done(function() {
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// The referer header should be the full URL (as specified in the iframe
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// at parse time), and not the origin (as specified in meta referrer
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// tag) or null (as overridden by iframe referrerpolicy=no-referrer).
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assert_true(below_viewport_iframe.element().contentDocument.body.innerHTML
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.includes("Referer: http://{{host}}:{{ports[http][0]}}/loading/lazyload/"));
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}));
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}, "Test that when deferred iframe is loaded, it uses the referrer-policy specified at parse time.");
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</script>
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<body>
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<meta name="referrer" content="origin">
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<div style="height:10000px;"></div>
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<iframe id="below_viewport_iframe" src="/xhr/resources/echo-headers.py" loading="lazy" width="200px" height="100px" referrerpolicy="unsafe-url" onload="below_viewport_iframe.resolve();">
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</iframe>
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</body>
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<!DOCTYPE html>
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<head>
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<title>Images with loading='lazy' in picture elements load when near the viewport</title>
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<link rel="author" title="Raj T" href="mailto:rajendrant@chromium.org">
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<link rel="help" href="https://github.com/scott-little/lazyload">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="common.js"></script>
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</head>
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<!--
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Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
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-->
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<script>
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const in_viewport_img = new ElementLoadPromise("in_viewport_img");
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const lazy_attribute_img = new ElementLoadPromise("lazy_attribute_img");
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const eager_attribute_img = new ElementLoadPromise("eager_attribute_img");
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const document_load_promise = new Promise(resolve => {
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window.addEventListener("load", resolve);
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});
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async_test(function(t) {
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document_load_promise.then(t.step_func_done(function() {
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assert_false(lazy_attribute_img.element().complete);
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lazy_attribute_img.element().scrollIntoView();
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}));
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}, "Test that the loading=lazy <picture> element below viewport was deferred, on document load.");
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async_test(function(t) {
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in_viewport_img.promise.then(t.step_func_done());
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}, "Test that in viewport <picture> element was loaded");
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async_test(function(t) {
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eager_attribute_img.promise.then(t.step_func_done());
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}, "Test that eager <picture> element was loaded");
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async_test(function(t) {
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lazy_attribute_img.promise.then(t.step_func_done());
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}, "Test that deferred <picture> element was loaded-in as well, after scrolled down");
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</script>
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<body>
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<picture>
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<source sizes='50vw' srcset='resources/image.png?in_viewport_img'>
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<img id='in_viewport_img' src='img-not-loaded.png' loading="lazy" onload="in_viewport_img.resolve();">
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</picture>
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<div style="height:10000px;"></div>
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<picture>
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<source sizes='50vw' srcset='resources/image.png?lazy_attribute_img'>
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<img id='lazy_attribute_img' src='img-not-loaded.png' loading="lazy" onload="lazy_attribute_img.resolve();">
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</picture>
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<picture>
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<source sizes='50vw' srcset='resources/image.png?eager_attribute_img'>
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<img id='eager_attribute_img' src='img-not-loaded.png' loading="eager" onload="eager_attribute_img.resolve();">
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</picture>
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<!--
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This async script loads very slowly in order to ensure that, if the
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below_viewport image has started loading, it has a chance to finish
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loading before window.load() happens, so that the test will dependably fail
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in that case instead of potentially passing depending on how long different
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resource fetches take.
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-->
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<script async src="/common/slow.py"></script>
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</body>
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