diff --git a/lib/internal/Magento/Framework/App/ExceptionHandler.php b/lib/internal/Magento/Framework/App/ExceptionHandler.php
index d1bd09da256af..d0d38804c0697 100644
--- a/lib/internal/Magento/Framework/App/ExceptionHandler.php
+++ b/lib/internal/Magento/Framework/App/ExceptionHandler.php
@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2019 Adobe
+ * All Rights Reserved.
  */
 declare(strict_types=1);
 
@@ -99,7 +99,7 @@ private function handleDeveloperMode(
             }
             $response->clearHeader('Location');
             $response->setHttpResponseCode(500);
-            $response->setHeader('Content-Type', 'text/plain');
+            $response->setHeader('Content-Type', 'text/html');
             $response->setBody($this->buildContentFromException($exception));
             $response->sendResponse();
             return true;
@@ -122,11 +122,11 @@ private function buildContentFromException(\Exception $exception): string
             $exceptions[] = $exception;
         } while ($exception = $exception->getPrevious());
 
-        $buffer = sprintf("%d exception(s):\n", count($exceptions));
+        $buffer = sprintf("<div>%d exception(s):</div>\n", count($exceptions));
 
         foreach ($exceptions as $index => $exception) {
             $buffer .= sprintf(
-                "Exception #%d (%s): %s\n",
+                "<div>Exception #%d (%s): %s</div>\n",
                 $index,
                 get_class($exception),
                 $exception->getMessage()
@@ -135,7 +135,7 @@ private function buildContentFromException(\Exception $exception): string
 
         foreach ($exceptions as $index => $exception) {
             $buffer .= sprintf(
-                "\nException #%d (%s): %s\n%s\n",
+                "<br/>\n<div>Exception #%d (%s): %s\n%s</div>\n",
                 $index,
                 get_class($exception),
                 $exception->getMessage(),
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/ExceptionHandlerTest.php b/lib/internal/Magento/Framework/App/Test/Unit/ExceptionHandlerTest.php
index 53340c7812a66..126b70dd0893f 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/ExceptionHandlerTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/ExceptionHandlerTest.php
@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2019 Adobe
+ * All Rights Reserved.
  */
 declare(strict_types=1);
 
@@ -125,8 +125,8 @@ public function testHandleDeveloperMode()
             ->with(500);
         $this->responseMock->expects($this->once())
             ->method('setHeader')
-            ->with('Content-Type', 'text/plain');
-        $constraint = new StringStartsWith('1 exception(s):');
+            ->with('Content-Type', 'text/html');
+        $constraint = new StringStartsWith('<div>1 exception(s):</div>');
         $this->responseMock->expects($this->once())
             ->method('setBody')
             ->with($constraint);