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Allow <a name=""></a> elements in the markdown. #8796

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Merged
merged 1 commit into from
Jun 2, 2025
Merged

Allow <a name=""></a> elements in the markdown. #8796

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8 changes: 7 additions & 1 deletion app/lib/shared/markdown.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -220,7 +220,13 @@ class _RelativeUrlRewriter extends html_parsing.TreeVisitor {
super.visitElement(element);

// check current element
if (element.localName == 'a') {
if (element.localName == 'a' &&
element.attributes.length == 1 &&
element.attributes.containsKey('name') &&
element.attributes['name']!.isNotEmpty &&
element.nodes.isEmpty) {
// allow name anchor without any other attribute or content
} else if (element.localName == 'a') {
_updateUrlAttributes(element, 'href');
} else if (element.localName == 'img') {
_updateUrlAttributes(element, 'src', raw: true);
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10 changes: 10 additions & 0 deletions app/test/shared/markdown_test.dart
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Expand Up @@ -27,6 +27,16 @@ void main() {
'</ul>\n',
);
});

test('named anchor', () {
expect(
markdownToHtml('<a name="abc"></a>'), '<p><a name="abc"></a></p>\n');
});

test('named anchor with other content', () {
expect(markdownToHtml('<a name="abc" other="1"></a>'), '<p></p>\n');
expect(markdownToHtml('<a name="abc">x</a>'), '<p>x</p>\n');
});
});

group('Valid custom base URL', () {
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