Merge forwardport of #13051 to 2.3-develop branch

Applied pull request patch https://github.com/magento/magento2/pull/13051.patch (created by @codekipple) based on commit(s): 1. c8ff538
magento · Jan 29, 2018 · a15ec34 · a15ec34
2 parents bf19409 + ae8b187
commit a15ec34
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/app/code/Magento/Ui/view/base/web/js/form/element/region.js b/app/code/Magento/Ui/view/base/web/js/form/element/region.js
@@ -35,6 +35,11 @@ define([
  return;
  }
  option = options[value];
+
+ if (typeof option === 'undefined') {
+ return;
+ }
+
  defaultPostCodeResolver.setUseDefaultPostCode(!option['is_zipcode_optional']);
 
  if (this.skipValidation) {