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LibWeb/HTML: Add cross-site ancestor flag to environment

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Corresponds to baec061a70
This commit is contained in:
Sam Atkins
2025-08-07 15:03:05 +01:00
parent cfdc4bad7c
commit 4bcfc4bacc
Notes: github-actions[bot] 2025-08-11 11:23:58 +00:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/LadybirdBrowser/ladybird/commit/4bcfc4bacc5
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5763
10 changed files with 73 additions and 16 deletions
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22
Libraries/LibWeb/HTML/Scripting/WindowEnvironmentSettingsObject.cpp
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@@ -110,6 +110,28 @@ URL::Origin WindowEnvironmentSettingsObject::origin() const
return m_window->associated_document().origin();
}
// https://html.spec.whatwg.org/multipage/nav-history-apis.html#script-settings-for-window-objects:concept-settings-object-has-cross-site-ancestor
bool WindowEnvironmentSettingsObject::has_cross_site_ancestor() const
{
// 1. If window's navigable's parent is null, then return false.
if (m_window->navigable()->parent() == nullptr)
return false;
// 2. Let parentDocument be window's navigable's parent's active document.
auto parent_document = m_window->navigable()->parent()->active_document();
// 3. If parentDocument's relevant settings object's has cross-site ancestor is true, then return true.
if (parent_document->relevant_settings_object().has_cross_site_ancestor())
return true;
// 4. If parentDocument's origin is not same site with window's associated Document's origin, then return true.
if (!parent_document->origin().is_same_site(m_window->associated_document().origin()))
return true;
// 5. Return false.
return false;
}
// https://html.spec.whatwg.org/multipage/window-object.html#script-settings-for-window-objects:concept-settings-object-policy-container
GC::Ref<PolicyContainer> WindowEnvironmentSettingsObject::policy_container() const
{