Prevent undo error from malformed range

summernote · Dec 12, 2018 · 141f01b · 141f01b
1 parent 2914322
commit 141f01b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/js/base/editing/History.js b/src/js/base/editing/History.js
@@ -14,7 +14,7 @@ export default class History {
 
     return {
       contents: this.$editable.html(),
-      bookmark: (rng ? rng.bookmark(this.editable) : emptyBookmark),
+      bookmark: ((rng && rng.isOnEditable()) ? rng.bookmark(this.editable) : emptyBookmark),
     };
   }