MAGETWO-66426: Move cache to instance of price box widget #6794

Author: Oleksii Korshenko

app/code/Magento/Catalog/view/base/web/js/price-box.js

@@ -21,7 +21,6 @@ define([
 
     $.widget('mage.priceBox', {
         options: globalOptions,
-        cache: {},
 
         /**
          * Widget initialisation.
@@ -39,6 +38,7 @@ define([
          * Widget creating.
          */
         _create: function createPriceBox() {
+            this.cache = {};
             var box = this.element;
 
             this._setDefaultsFromPriceConfig();