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Polymer · Jun 22, 2018 · c550e9e · c550e9e
1 parent 08e13f2
commit c550e9e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/legacy/legacy-data-mixin.html b/lib/legacy/legacy-data-mixin.html
@@ -59,6 +59,8 @@
         if (this._legacyUndefinedCheck && args.length > 1) {
           for (let i=0; i<args.length; i++) {
             if (vals[i] === undefined) {
+              // Break out of effect's control flow; will be caught in
+              // wrapped property effect function below
               throw new UndefinedArgumentError(`argument '${args[i].name}' is undefined; ensure it has an undefined check`);
             }
           }