Update codeit-match-braces.js

Author: benhatsor

lib/plugins/codeit-match-braces.js

@@ -175,12 +175,18 @@
 				const cursor = cd.dropper.cursor();
 
 				if (cursor && cursor.in('brace')) {
+  
 					const currentBrace = cursor.getParent();
 
 					if (currentBrace.id) {
+  
 						currentBrace.classList.add('brace-active');
-						getPartnerBrace(currentBrace).classList.add('brace-active');
+
+            const partnerBrace = getPartnerBrace(currentBrace);
+            if (partnerBrace) partnerBrace.classList.add('brace-active');
+
 					}
+
 				}
 
 			}