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LibWeb: Propagate exceptions from setAttribute() in DOMStringMap setter

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We were incorrectly assuming that setAttribute() could never fail here,
even when passed an invalid name.

Found by Domato.
This commit is contained in:
Andreas Kling
2024-07-19 14:57:23 +02:00
committed by Andreas Kling
parent 1c00e5688d
commit 093f1dd805
3 changed files with 14 additions and 1 deletions
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2
Userland/Libraries/LibWeb/HTML/DOMStringMap.cpp
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@@ -165,7 +165,7 @@ WebIDL::ExceptionOr<void> DOMStringMap::set_value_of_new_named_property(String c
// FIXME: 4. If name does not match the XML Name production, throw an "InvalidCharacterError" DOMException.
// 5. Set an attribute value for the DOMStringMap's associated element using name and value.
MUST(m_associated_element->set_attribute(data_name, value));
TRY(m_associated_element->set_attribute(data_name, value));
return {};
}