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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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10
Libraries/LibWeb/HTML/HTMLCanvasElement.cpp
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@ -162,26 +162,24 @@ void HTMLCanvasElement::notify_context_about_canvas_size_change()
});
}
WebIDL::ExceptionOr<void> HTMLCanvasElement::set_width(unsigned value)
void HTMLCanvasElement::set_width(unsigned value)
{
if (value > 2147483647)
value = 300;
TRY(set_attribute(HTML::AttributeNames::width, String::number(value)));
set_attribute_value(HTML::AttributeNames::width, String::number(value));
notify_context_about_canvas_size_change();
reset_context_to_default_state();
return {};
}
WebIDL::ExceptionOr<void> HTMLCanvasElement::set_height(WebIDL::UnsignedLong value)
void HTMLCanvasElement::set_height(WebIDL::UnsignedLong value)
{
if (value > 2147483647)
value = 150;
TRY(set_attribute(HTML::AttributeNames::height, String::number(value)));
set_attribute_value(HTML::AttributeNames::height, String::number(value));
notify_context_about_canvas_size_change();
reset_context_to_default_state();
return {};
}
void HTMLCanvasElement::attribute_changed(FlyString const& local_name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)