ACP2E-1462: Not secure response for 400 error from the server

Author: pradeep1819

app/code/Magento/Customer/Controller/Section/Load.php

@@ -69,7 +69,9 @@ public function execute()
         $resultJson->setHeader('Pragma', 'no-cache', true);
         try {
             $sectionNames = $this->getRequest()->getParam('sections');
-            $sectionNames = $sectionNames ? array_unique(\explode(',', $sectionNames)) : null;
+            $sectionNames = $sectionNames
+                ? array_unique(is_array($sectionNames) ? $sectionNames : explode(',', $sectionNames))
+                : null;
 
             $forceNewSectionTimestamp = $this->getRequest()->getParam('force_new_section_timestamp');
             if ('false' === $forceNewSectionTimestamp) {

app/code/Magento/Customer/Test/Unit/Controller/Section/LoadTest.php

@@ -146,6 +146,12 @@ public function executeDataProvider()
                 'sectionNamesAsArray' => null,
                 'forceNewTimestamp' => false
             ],
+            [
+                'sectionNames' => ['sectionName1', 'sectionName2', 'sectionName3'],
+                'forceNewSectionTimestamp' => 'forceNewSectionTimestamp',
+                'sectionNamesAsArray' => ['sectionName1', 'sectionName2', 'sectionName3'],
+                'forceNewTimestamp' => true
+            ],
         ];
     }