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GeezerVison is showing github.com — wpt/css/cssom-view/scrollIntoView-iframes.html at master · web-platform-tests/wpt

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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSSOM View Test: scrollIntoView in iframes</title>
<link rel="author" title="Oriol Brufau" href="mailto:[email protected]">
<link rel="author" title="Martin Robinson" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
<meta name="assert" content="Checks that scrollIntoView inside and iframe can scroll in the parent document if it has the same origin.">
<style>
.scroller {
overflow: hidden;
height: 500px;
border: solid;
}
.scroller::before {
content: "";
display: block;
height: 500px;
}
.scroller::after {
content: "";
display: block;
height: 300px;
}
iframe {
height: 1000px;
border: none;
}
</style>
<div id="log"></div>
<div class="scroller">
<iframe id="same-origin-iframe"></iframe>
</div>
<div class="scroller">
<iframe id="cross-origin-iframe" sandbox="allow-scripts"></iframe>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
let sameOriginIframe = document.getElementById("same-origin-iframe");
let crossOriginIframe = document.getElementById("cross-origin-iframe");
let sameOriginWindow = sameOriginIframe.contentWindow;
let crossOriginWindow = crossOriginIframe.contentWindow;
promise_setup(() => Promise.all([
new Promise(resolve => {
sameOriginIframe.addEventListener("load", resolve);
sameOriginIframe.src = "support/scrollIntoView-iframes-child.html";
}),
new Promise(resolve => {
crossOriginIframe.addEventListener("load", resolve);
crossOriginIframe.src = "support/scrollIntoView-iframes-child.html";
})
]));
promise_test(async () => {
assert_equals(sameOriginWindow.scrollY, 100, "scrollY");
}, "scrollIntoView in same-origin iframe can scroll in inner window");
promise_test(async () => {
assert_equals(sameOriginIframe.parentElement.scrollTop, 1200, "scrollTop");
}, "scrollIntoView in same-origin iframe can scroll in parent window");
promise_test(async () => {
let scrollY = await new Promise(resolve => {
addEventListener("message", event => {
if (event.source === crossOriginWindow) {
resolve(event.data);
}
});
crossOriginWindow.postMessage("scrollY", "*");
});
assert_equals(scrollY, 100, "scrollY");
}, "scrollIntoView in cross-origin iframe can scroll in inner window");
promise_test(async () => {
assert_equals(crossOriginIframe.parentElement.scrollTop, 0, "scrollTop");
}, "scrollIntoView in cross-origin iframe can't scroll in parent window");
</script>
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