Fix maction tagname lookup error.

Speech-Rule-Engine · Mar 6, 2024 · 75c6814 · 75c6814
1 parent 62f471e
commit 75c6814
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ts/highlighter/chtml_highlighter.ts b/ts/highlighter/chtml_highlighter.ts
@@ -32,7 +32,7 @@ export class ChtmlHighlighter extends CssHighlighter {
    * @override
    */
   public isMactionNode(node: HTMLElement) {
-    return node.tagName.toUpperCase() === this.mactionName.toUpperCase();
+    return node.tagName?.toUpperCase() === this.mactionName.toUpperCase();
   }
 
   /**