From 11cfe04010a640f52be271cbb7d0ed129a9b900b Mon Sep 17 00:00:00 2001
From: Jitheesh <jitheeshvo@gmail.com>
Date: Tue, 26 Feb 2019 14:30:25 +0530
Subject: [PATCH] Infinite redirects in Magento admin #21454 - fixed issue with
 start up page redirect

---
 app/code/Magento/Backend/App/Request/BackendValidator.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/code/Magento/Backend/App/Request/BackendValidator.php b/app/code/Magento/Backend/App/Request/BackendValidator.php
index 4d04d2fed8eb2..7ec6c83f29b50 100644
--- a/app/code/Magento/Backend/App/Request/BackendValidator.php
+++ b/app/code/Magento/Backend/App/Request/BackendValidator.php
@@ -146,8 +146,9 @@ private function createException(
                 $exception = new InvalidRequestException($response);
             } else {
                 //For regular requests.
+                $startPageUrl = $this->backendUrl->getStartupPageUrl();
                 $response = $this->redirectFactory->create()
-                    ->setUrl($this->backendUrl->getStartupPageUrl());
+                    ->setUrl($this->backendUrl->getUrl($startPageUrl));
                 $exception = new InvalidRequestException(
                     $response,
                     [