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LibWeb/DOM: Add missing UTF-8 decode without BOM on fragment ID

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We were previously crashing instead of using the replacement
character on invalid bytes.
This commit is contained in:
Shannon Booth 2025-02-10 15:32:10 +13:00 • committed by Tim Ledbetter
commit c954d0be27
Notes: github-actions[bot] 2025-02-10 09:49:08 +00:00
7 changed files with 137 additions and 2 deletions
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4
Libraries/LibWeb/DOM/Document.cpp
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@ -2451,10 +2451,10 @@ Document::IndicatedPart Document::determine_the_indicated_part() const
// 5. Let fragmentBytes be the result of percent-decoding fragment.
// 6. Let decodedFragment be the result of running UTF-8 decode without BOM on fragmentBytes.
auto decoded_fragment = URL::percent_decode(*fragment);
auto decoded_fragment = String::from_utf8_with_replacement_character(URL::percent_decode(*fragment), String::WithBOMHandling::No);
// 7. Set potentialIndicatedElement to the result of finding a potential indicated element given document and decodedFragment.
potential_indicated_element = find_a_potential_indicated_element(MUST(FlyString::from_deprecated_fly_string(decoded_fragment)));
potential_indicated_element = find_a_potential_indicated_element(decoded_fragment);
// 8. If potentialIndicatedElement is not null, then return potentialIndicatedElement.
if (potential_indicated_element)