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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 
Author: https://github.com/Lubrsi
Commit: https://github.com/LadybirdBrowser/ladybird/commit/82bd3d38911
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6632
Reviewed-by: https://github.com/AtkinsSJ
83 changed files with 407 additions and 366 deletions
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2
Libraries/LibWeb/HTML/DOMStringMap.cpp
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@@ -167,7 +167,7 @@ WebIDL::ExceptionOr<void> DOMStringMap::set_value_of_new_named_property(String c
return WebIDL::InvalidCharacterError::create(realm(), "Name is not a valid attribute local name."_utf16);
// 5. Set an attribute value for the DOMStringMap's associated element using name and value.
TRY(m_associated_element->set_attribute(data_name, value));
m_associated_element->set_attribute_value(data_name, value);
return {};
}