Sean Breeden

After upgrading from Magento 2.3.7-p2 to Magento 2.4.3-p1, customer-data.js started erroring out in the checkout success page. Here's how to easily fix it in Magento 2.4.3-p1.

Uncaught TypeError: Cannot read property 'remove' of undefined
at customer-data.js:178
at Function._.each._.forEach (underscore.js:145)
at Object.remove (customer-data.js:177)

You can apply the following patch file via composer or by using: patch -p1 < customer-js.patch.

For Magento Commerce Cloud, add the .patch file to the /m2-hotfixes folder. It will apply automatically during deployment.

customer-js.patch

--- a/vendor/magento/module-customer/view/frontend/web/js/customer-data.js
+++ b/vendor/magento/module-customer/view/frontend/web/js/customer-data.js
@@ -17,7 +17,9 @@
 ], function ($, _, ko, sectionConfig, url) {
 'use strict';

- var options = {},
+ var options = {
+ cookieLifeTime: 86400 //1 day by default
+ },
 storage,
 storageInvalidation,
 invalidateCacheBySessionTimeOut,
@@ -31,6 +33,22 @@
 options.sectionLoadUrl = url.build('customer/section/load');

 /**
+ * Storage initialization
+ */
+ function initStorage() {
+ $.cookieStorage.setConf({
+ path: '/',
+ expires: new Date(Date.now() + parseInt(options.cookieLifeTime, 10) * 1000),
+ samesite: 'lax'
+ });
+ storage = $.initNamespaceStorage('mage-cache-storage').localStorage;
+ storageInvalidation = $.initNamespaceStorage('mage-cache-storage-section-invalidation').localStorage;
+ }
+
+ // Initialize storage with default parameters to prevent JS errors while component still not initialized
+ initStorage();
+
+ /**
 * @param {Object} invalidateOptions
 */
 invalidateCacheBySessionTimeOut = function (invalidateOptions) {
@@ -216,15 +234,7 @@
 /**
 * Storage init
 */
- initStorage: function () {
- $.cookieStorage.setConf({
- path: '/',
- expires: new Date(Date.now() + parseInt(options.cookieLifeTime, 10) * 1000),
- samesite: 'lax'
- });
- storage = $.initNamespaceStorage('mage-cache-storage').localStorage;
- storageInvalidation = $.initNamespaceStorage('mage-cache-storage-section-invalidation').localStorage;
- },
+ initStorage: initStorage,

 /**
 * Retrieve the list of sections that has expired since last page reload.
@@ -364,7 +374,10 @@
 */
 'Magento_Customer/js/customer-data': function (settings) {
 options = settings;
+
+ // re-init storage with a new settings
 customerData.initStorage();
+
 invalidateCacheBySessionTimeOut(settings);
 invalidateCacheByCloseCookieSession();
 customerData.init();