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LibWeb: Implement the LegacyUnforgeable attribute
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Browse source 
This fixes the frame-ancestors WPT tests from crashing when an iframe
is blocked from loading. This is because it would get an undefined
location.href from the cross-origin iframe, which causes a crash as it
expects it to be there.
This commit is contained in:
Luke Wilde 2024-12-09 17:04:20 +00:00 • committed by Tim Ledbetter
commit c7d25301d3
Notes: github-actions[bot] 2025-03-28 00:10:01 +00:00
15 changed files with 511 additions and 76 deletions
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33
Tests/LibWeb/Text/input/DOM/Document-has-unforgeable-properties.html Normal file
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<!DOCTYPE html>
<script src="../include.js"></script>
<script>
test(() => {
const unforgeableProperties = [
"location",
];
const documents = [
document,
new Document(),
document.implementation.createDocument("http://www.w3.org/1999/xhtml", null, null),
document.implementation.createDocument("http://www.w3.org/2000/svg", null, null),
document.implementation.createDocument(null, null, null),
document.implementation.createHTMLDocument(),
];
for (const document of documents) {
const documentPrototype = Object.getPrototypeOf(document);
for (const property of unforgeableProperties) {
println(`${property} exists on document itself: ${Object.hasOwn(document, property)}`);
println(`${property} does not exist on LocationPrototype: ${!Object.hasOwn(documentPrototype, property)}`);
const propertyDescriptor = Object.getOwnPropertyDescriptor(document, property);
println(`${property} descriptor is not undefined: ${propertyDescriptor !== undefined}`);
println(`${property} enumerable: ${propertyDescriptor.enumerable}`);
println(`${property} configurable: ${propertyDescriptor.configurable}`);
println(`${property} writable: ${propertyDescriptor.writable}`);
}
}
});
</script>

25
Tests/LibWeb/Text/input/DOM/Event-has-unforgeable-properties.html Normal file
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<!DOCTYPE html>
<script src="../include.js"></script>
<script>
test(() => {
const unforgeableProperties = [
"isTrusted",
];
for (const eventType of [Event, UIEvent, CustomEvent]) {
const event = new eventType("test");
const eventPrototype = Object.getPrototypeOf(event);
for (const property of unforgeableProperties) {
println(`${property} exists on ${eventType.name} instance itself: ${Object.hasOwn(event, property)}`);
println(`${property} does not exist on LocationPrototype: ${!Object.hasOwn(eventPrototype, property)}`);
const propertyDescriptor = Object.getOwnPropertyDescriptor(event, property);
println(`${property} descriptor is not undefined: ${propertyDescriptor !== undefined}`);
println(`${property} enumerable: ${propertyDescriptor.enumerable}`);
println(`${property} configurable: ${propertyDescriptor.configurable}`);
println(`${property} writable: ${propertyDescriptor.writable}`);
}
}
});
</script>