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LibWeb: Avoid invoking Trusted Types where avoidable

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Prevents observably calling Trusted Types, which can run arbitrary JS,
cause crashes due to use of MUST and allow arbitrary JS to modify
internal elements.
This commit is contained in:
Luke Wilde 2025-10-31 12:30:47 +00:00 • committed by Tim Flynn
parent fb9406ddcd
commit 82bd3d3891
Notes: github-actions[bot] 2025-11-06 16:46:00 +00:00
83 changed files with 407 additions and 366 deletions
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4
Libraries/LibWeb/HTML/HTMLDialogElement.cpp
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@ -133,7 +133,7 @@ WebIDL::ExceptionOr<void> HTMLDialogElement::show()
queue_a_dialog_toggle_event_task("closed"_string, "open"_string, nullptr);
// 6. Add an open attribute to this, whose value is the empty string.
TRY(set_attribute(AttributeNames::open, String {}));
set_attribute_value(AttributeNames::open, String {});
// 7. Assert: this's node document's open dialogs list does not contain this.
VERIFY(!m_document->open_dialogs_list().contains_slow(GC::Ref(*this)));
@ -230,7 +230,7 @@ WebIDL::ExceptionOr<void> HTMLDialogElement::show_a_modal_dialog(HTMLDialogEleme
subject.queue_a_dialog_toggle_event_task("closed"_string, "open"_string, source);
// 11. Add an open attribute to subject, whose value is the empty string.
TRY(subject.set_attribute(AttributeNames::open, String {}));
subject.set_attribute_value(AttributeNames::open, String {});
// 12. Set is modal of subject to true.
subject.set_is_modal(true);