diff --git a/app/code/Magento/AuthorizenetAcceptjs/view/base/requirejs-config.js b/app/code/Magento/AuthorizenetAcceptjs/view/base/requirejs-config.js
index 83ddd1094ea1a..cbe0a6c30e699 100644
--- a/app/code/Magento/AuthorizenetAcceptjs/view/base/requirejs-config.js
+++ b/app/code/Magento/AuthorizenetAcceptjs/view/base/requirejs-config.js
@@ -4,16 +4,10 @@
  */
 
 var config = {
-    shim: {
-        acceptjs: {
-            exports: 'Accept'
-        },
-        acceptjssandbox: {
-            exports: 'Accept'
+    map: {
+        '*': {
+            acceptjssandbox: 'https://jstest.authorize.net/v1/Accept.js',
+            acceptjs: 'https://js.authorize.net/v1/Accept.js'
         }
-    },
-    paths: {
-        acceptjssandbox: 'https://jstest.authorize.net/v1/Accept',
-        acceptjs: 'https://js.authorize.net/v1/Accept'
     }
 };
diff --git a/app/code/Magento/AuthorizenetAcceptjs/view/base/web/js/view/payment/acceptjs-factory.js b/app/code/Magento/AuthorizenetAcceptjs/view/base/web/js/view/payment/acceptjs-factory.js
index e98a204e36cee..c8813c17c70c7 100644
--- a/app/code/Magento/AuthorizenetAcceptjs/view/base/web/js/view/payment/acceptjs-factory.js
+++ b/app/code/Magento/AuthorizenetAcceptjs/view/base/web/js/view/payment/acceptjs-factory.js
@@ -16,7 +16,7 @@ define([
             dependency = 'acceptjssandbox';
         }
 
-        require([dependency], function (accept) {
+        require([dependency], function () {
                 var $body = $('body');
 
                 /*
@@ -26,7 +26,16 @@ define([
                  * Dynamically-loading-Accept-js-E-WC-03-Accept-js-is-not-loaded/td-p/63283
                  */
                 $body.on('handshake.acceptjs', function () {
-                    deferred.resolve(accept);
+                    /*
+                     * Accept.js doesn't return the library when loading
+                     * and requirejs "shim" can't be used because it only works with the "paths" config option
+                     * and we can't use "paths" because require will try to load ".min.js" in production
+                     * and that doesn't work because it doesn't exist
+                     * and we can't add a query string to force a URL because accept.js will reject it
+                     * and we can't include it locally because they check in the script before loading more scripts
+                     * So, we use the global version as "shim" would
+                     */
+                    deferred.resolve(window.Accept);
                     $body.off('handshake.acceptjs');
                 });
             },
diff --git a/app/code/Magento/Backup/Controller/Adminhtml/Index.php b/app/code/Magento/Backup/Controller/Adminhtml/Index.php
index 0edeb5565f288..b62963947d7bf 100644
--- a/app/code/Magento/Backup/Controller/Adminhtml/Index.php
+++ b/app/code/Magento/Backup/Controller/Adminhtml/Index.php
@@ -6,7 +6,6 @@
 namespace Magento\Backup\Controller\Adminhtml;
 
 use Magento\Backend\App\Action;
-use Magento\Framework\App\Action\HttpGetActionInterface;
 use Magento\Backup\Helper\Data as Helper;
 use Magento\Framework\App\ObjectManager;
 
@@ -18,7 +17,7 @@
  * @since 100.0.2
  * @SuppressWarnings(PHPMD.AllPurposeAction)
  */
-abstract class Index extends Action implements HttpGetActionInterface
+abstract class Index extends Action
 {
     /**
      * Authorization level of a basic admin session
diff --git a/app/code/Magento/Backup/Controller/Adminhtml/Index/Create.php b/app/code/Magento/Backup/Controller/Adminhtml/Index/Create.php
index 53f45aff50cbc..99c48b727521a 100644
--- a/app/code/Magento/Backup/Controller/Adminhtml/Index/Create.php
+++ b/app/code/Magento/Backup/Controller/Adminhtml/Index/Create.php
@@ -1,15 +1,18 @@
 <?php
 /**
- *
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
 namespace Magento\Backup\Controller\Adminhtml\Index;
 
+use Magento\Framework\App\Action\HttpPostActionInterface;
 use Magento\Framework\App\Filesystem\DirectoryList;
 use Magento\Framework\Filesystem;
 
-class Create extends \Magento\Backup\Controller\Adminhtml\Index
+/**
+ * Create backup controller
+ */
+class Create extends \Magento\Backup\Controller\Adminhtml\Index implements HttpPostActionInterface
 {
     /**
      * Create backup action.
diff --git a/app/code/Magento/Catalog/view/adminhtml/web/catalog/product/edit/attribute.js b/app/code/Magento/Catalog/view/adminhtml/web/catalog/product/edit/attribute.js
index 407fd1fe28e39..e1923dc46d68e 100644
--- a/app/code/Magento/Catalog/view/adminhtml/web/catalog/product/edit/attribute.js
+++ b/app/code/Magento/Catalog/view/adminhtml/web/catalog/product/edit/attribute.js
@@ -5,13 +5,13 @@
 
 define([
     'jquery',
-    'mage/mage'
+    'mage/mage',
+    'validation'
 ], function ($) {
     'use strict';
 
     return function (config, element) {
-
-        $(element).mage('form').mage('validation', {
+        $(element).mage('form').validation({
             validationUrl: config.validationUrl
         });
     };
diff --git a/app/code/Magento/Tax/view/adminhtml/templates/class/page/edit.phtml b/app/code/Magento/Tax/view/adminhtml/templates/class/page/edit.phtml
deleted file mode 100644
index 18e86549a1ff9..0000000000000
--- a/app/code/Magento/Tax/view/adminhtml/templates/class/page/edit.phtml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?php
-/**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
- */
-?>
-<div data-mage-init='{"floatingHeader": {}}' class="page-actions">
-    <?= $block->getBackButtonHtml() ?>
-    <?= $block->getResetButtonHtml() ?>
-    <?= $block->getDeleteButtonHtml() ?>
-    <?= $block->getSaveButtonHtml() ?>
-</div>
-<?= $block->getRenameFormHtml() ?>
-<script type="text/x-magento-init">
-    {
-        "#<?= /* @escapeNotVerified */ $block->getRenameFormId() ?>": {
-            "Magento_Tax/js/page/validate": {}
-        }
-    }
-</script>
diff --git a/app/code/Magento/Tax/view/adminhtml/web/js/page/validate.js b/app/code/Magento/Tax/view/adminhtml/web/js/page/validate.js
deleted file mode 100644
index a49f199ba56b6..0000000000000
--- a/app/code/Magento/Tax/view/adminhtml/web/js/page/validate.js
+++ /dev/null
@@ -1,15 +0,0 @@
-/**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
- */
-
-define([
-    'jquery',
-    'mage/mage'
-], function (jQuery) {
-    'use strict';
-
-    return function (data, element) {
-        jQuery(element).mage('form').mage('validation');
-    };
-});