Add more guards against lack of minicart

Author: fredden

app/code/Magento/Catalog/view/frontend/web/js/product/provider-compared.js

@@ -35,7 +35,7 @@ define([
                 productCurrentScope,
                 scopeId;
 
-            if (typeof this.data.productCurrentScope !== 'undefined') {
+            if (typeof this.data.productCurrentScope !== 'undefined' && window.checkout && window.checkout.baseUrl) {
                 productCurrentScope = this.data.productCurrentScope;
                 scopeId = productCurrentScope === 'store' ? window.checkout.storeId :
                     productCurrentScope === 'group' ? window.checkout.storeGroupId :

app/code/Magento/Catalog/view/frontend/web/js/product/provider.js

@@ -93,6 +93,11 @@ define([
          * @private
          */
         _resolveDataByIds: function () {
+            if (!window.checkout || !window.checkout.baseUrl) {
+                // We need data that the minicart provdes to determine storeId/websiteId
+                return;
+            }
+
             this.initIdsListener();
             this.idsMerger(
                 this.idsStorage.get(),

app/code/Magento/Catalog/view/frontend/web/js/product/view/provider.js

@@ -30,9 +30,13 @@ define([
          * @returns {Object} Chainable.
          */
         initialize: function () {
-            this._super()
-                .initIdsStorage()
-                .initDataStorage();
+            this._super();
+
+            if (window.checkout && window.checkout.baseUrl) {
+                this.initIdsStorage();
+            }
+
+            this.initDataStorage();
 
             return this;
         },