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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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8
Libraries/LibWeb/HTML/HTMLMarqueeElement.cpp
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@@ -87,11 +87,11 @@ WebIDL::UnsignedLong HTMLMarqueeElement::scroll_amount()
}
// https://html.spec.whatwg.org/multipage/obsolete.html#dom-marquee-scrollamount
WebIDL::ExceptionOr<void> HTMLMarqueeElement::set_scroll_amount(WebIDL::UnsignedLong value)
void HTMLMarqueeElement::set_scroll_amount(WebIDL::UnsignedLong value)
{
if (value > 2147483647)
value = 6;
return set_attribute(HTML::AttributeNames::scrollamount, String::number(value));
set_attribute_value(HTML::AttributeNames::scrollamount, String::number(value));
}
// https://html.spec.whatwg.org/multipage/obsolete.html#dom-marquee-scrolldelay
@@ -106,11 +106,11 @@ WebIDL::UnsignedLong HTMLMarqueeElement::scroll_delay()
}
// https://html.spec.whatwg.org/multipage/obsolete.html#dom-marquee-scrolldelay
WebIDL::ExceptionOr<void> HTMLMarqueeElement::set_scroll_delay(WebIDL::UnsignedLong value)
void HTMLMarqueeElement::set_scroll_delay(WebIDL::UnsignedLong value)
{
if (value > 2147483647)
value = 85;
return set_attribute(HTML::AttributeNames::scrolldelay, String::number(value));
set_attribute_value(HTML::AttributeNames::scrolldelay, String::number(value));
}
}