MC-4277: Address Product Page slowness due to 'product_data_storage' handling

Author: omiroshnichenko

app/code/Magento/Catalog/view/frontend/web/js/product/storage/data-storage.js

@@ -118,7 +118,7 @@ define([
             if (_.isEmpty(data)) {
                 this.localStorage.removeAll();
             } else {
-                this.localStorage.set(data);
+                window.localStorage.setItem(this.namespace, JSON.stringify(data));
             }
         },
 

app/code/Magento/Catalog/view/frontend/web/js/product/storage/ids-storage.js

@@ -94,11 +94,7 @@ define([
          * Initializes handler to "data" property update
          */
         internalDataHandler: function (data) {
-            var localStorage = this.localStorage.get();
-
-            if (!utils.compare(data, localStorage).equal) {
-                this.localStorage.set(data);
-            }
+            window.localStorage.setItem(this.namespace, JSON.stringify(data));
         },
 
         /**

app/code/Magento/Catalog/view/frontend/web/js/product/storage/storage-service.js

@@ -47,7 +47,7 @@ define([
                  * @param {*} data
                  */
                 add: function (data) {
-                    if (!_.isEmpty(data) && !utils.compare(data, this.data()).equal) {
+                    if (!_.isEmpty(data)) {
                         this.data(_.extend(utils.copy(this.data()), data));
                     }
                 },