From 0553ebc06c8c1dadadb67ae08a29a922cfa5719d Mon Sep 17 00:00:00 2001
From: Ievgen Shakhsuvarov <ishakhsuvarov@users.noreply.github.com>
Date: Sat, 18 Nov 2017 14:40:46 +0200
Subject: [PATCH] Backport of MAGETWO-84006 for Magento 2.1: Fix robots.txt
 content type to 'text/plain' #12310

(cherry picked from commit 2c3cd64b7b5aad670ca0eaac06112833a4a85437)
---
 app/code/Magento/Robots/Controller/Index/Index.php             | 1 +
 .../Magento/Robots/Test/Unit/Controller/Index/IndexTest.php    | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/app/code/Magento/Robots/Controller/Index/Index.php b/app/code/Magento/Robots/Controller/Index/Index.php
index b94626e93432d..679066d723dce 100644
--- a/app/code/Magento/Robots/Controller/Index/Index.php
+++ b/app/code/Magento/Robots/Controller/Index/Index.php
@@ -43,6 +43,7 @@ public function execute()
         /** @var Page $resultPage */
         $resultPage = $this->resultPageFactory->create(true);
         $resultPage->addHandle('robots_index_index');
+        $resultPage->setHeader('Content-Type', 'text/plain');
         return $resultPage;
     }
 }
diff --git a/app/code/Magento/Robots/Test/Unit/Controller/Index/IndexTest.php b/app/code/Magento/Robots/Test/Unit/Controller/Index/IndexTest.php
index aaac511e3c521..3ebf1d05325c5 100644
--- a/app/code/Magento/Robots/Test/Unit/Controller/Index/IndexTest.php
+++ b/app/code/Magento/Robots/Test/Unit/Controller/Index/IndexTest.php
@@ -51,6 +51,9 @@ public function testExecute()
         $resultPageMock->expects($this->once())
             ->method('addHandle')
             ->with('robots_index_index');
+        $resultPageMock->expects($this->once())
+            ->method('setHeader')
+            ->with('Content-Type', 'text/plain');
 
         $this->resultPageFactory->expects($this->any())
             ->method('create')