ACP2E-1083: Error adding products manually in configurable products

Author: Anna Bukatar

app/code/Magento/ConfigurableProduct/view/adminhtml/ui_component/configurable_associated_product_listing.xml

@@ -21,6 +21,9 @@
         <settings>
             <storageConfig>
                 <param name="cacheRequests" xsi:type="boolean">false</param>
+                <param name="requestConfig" xsi:type="object">
+                    <param name="method" xsi:type="string">POST</param>
+                </param>
             </storageConfig>
             <updateUrl path="mui/index/render"/>
         </settings>

app/code/Magento/Ui/view/base/web/js/grid/data-storage.js

@@ -21,7 +21,7 @@ define([
             indexField: 'entity_id',
             requestConfig: {
                 url: '${ $.updateUrl }',
-                method: 'POST',
+                method: 'GET',
                 dataType: 'json'
             },
             dataScope: '',