Catch markdown rendering errors and output in <pre> block. (#7498)

dart-lang · Feb 22, 2024 · 1a6c842 · 1a6c842
1 parent ef30b1c
commit 1a6c842
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/app/lib/shared/markdown.dart b/app/lib/shared/markdown.dart
@@ -53,6 +53,16 @@ String markdownToHtml(
       nodes = _groupChangelogNodes(nodes).toList();
     }
     return _renderSafeHtml(nodes, disableHashIds: disableHashIds);
+  } catch (e, st) {
+    _logger.shout('Error rendering markdown.', e, st);
+    // safe content inside the <pre> element
+    final safeText = text
+        .replaceAll('&', '&amp;')
+        .replaceAll('<', '&lt;')
+        .replaceAll('>', '&gt;')
+        .replaceAll("'", '&#39;')
+        .replaceAll('"', '&quot;');
+    return '<p>Error rendering markdown.</p>\n<pre><code>\n$safeText\n</code></pre>\n';
   } finally {
     if (sw.elapsed.inSeconds >= 3) {
       _logger.shout('Markdown rendering taking too long: ${sw.elapsed}');