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Tests/LibWeb: Import Fullscreen WPT tests

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This commit is contained in:
Luke Wilde
2026-01-27 23:17:18 +00:00
committed by Luke Wilde
parent 6491c6bb90
commit 8017f8a7ed
Notes: github-actions[bot] 2026-02-23 18:45:39 +00:00 
Author: https://github.com/Lubrsi
Commit: https://github.com/LadybirdBrowser/ladybird/commit/8017f8a7ed3
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/7649
Reviewed-by: https://github.com/shannonbooth ✅
Reviewed-by: https://github.com/tcl3
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Tests/LibWeb/Text/input/wpt-import/fullscreen/api/navigate-iframe.sub.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Document#fullscreenEnabled</title>
<meta charset="UTF-8" />
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
</head>
<body>
<div id="log"></div>
<script>
/*
* According to the spec the `default origin` for an iframe is its `declared
* origin`, meaning, the src attribute:
* https://w3c.github.io/webappsec-permissions-policy/#declared-origin
* The `default allowlist` for 'fullscreen' is "'self'":
* https://fullscreen.spec.whatwg.org/#permissions-policy-integration
* And 'self' means:
* 'self'
* The feature is allowed in documents in top-level traversables by default,
* as well as those in child navigables whose document is same origin with
* its parent’s document, when allowed in that Document. It is disallowed
* by default in child navigables whose document is cross-origin with its
* parent’s document.
* (https://w3c.github.io/webappsec-permissions-policy/#default-allowlists)
* Therefore a navigated iframe must not have fullscreen permissions unless
* the new origin matches the origin in the src attribute and is same-origin
* with the embedding page.
*/
var expectations = {
"same_to_cross": {allowlist: "", iframe_src: "same", iframe_dest: "cross", target_result: false},
"cross_to_same": {allowlist: "", iframe_src: "cross", iframe_dest: "same", target_result: false},
"same_to_same": {allowlist: "", iframe_src: "same", iframe_dest: "same", target_result: true},
"cross_to_cross": {allowlist: "", iframe_src: "cross", iframe_dest: "cross", target_result: false},
"allowed_cross_to_same": {allowlist: "'self' http://not-wpt.live:80",
iframe_src: "cross", iframe_dest: "same", target_result: true},
};
for (const [test, {allowlist, iframe_src, iframe_dest, target_result}] of Object.entries(expectations)) {
promise_test(async () => {
let iframe = document.createElement("iframe");
if (allowlist !== "") {
iframe.allow = `fullscreen ${allowlist}`;
}
document.body.appendChild(iframe);
iframe.addEventListener("load", () => {
iframe.contentWindow.postMessage({dest: iframe_dest}, "*");
});
let hostname = iframe_src === "same" ? "wpt.live" : "not-wpt.live";
iframe.src = `http://${hostname}:80/fullscreen/api/resources/navigate.sub.html`;
window.addEventListener('message', e => {
if (e.data.report?.api == "fullscreen") {
resolve(e.data.report);
}
});
const { promise, resolve } = Promise.withResolvers();
const report = await promise;
assert_equals(report.enabled, target_result);
}, test);
}
</script>
</body>
</html>