From 6000e3ba163f53d4c9168500c68efc4ae564a2dd Mon Sep 17 00:00:00 2001
From: Lee Bradley <lee.bradley@mademedia.co.uk>
Date: Tue, 17 Jan 2017 10:03:07 +0000
Subject: [PATCH] GridFieldAddExistingAutocompleter: Make Search Response
 HTTPResponse

Also adds the 'text/json' Content-Type header
---
 src/Forms/GridField/GridFieldAddExistingAutocompleter.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Forms/GridField/GridFieldAddExistingAutocompleter.php b/src/Forms/GridField/GridFieldAddExistingAutocompleter.php
index 5a1a66e5d..4c5051038 100644
--- a/src/Forms/GridField/GridFieldAddExistingAutocompleter.php
+++ b/src/Forms/GridField/GridFieldAddExistingAutocompleter.php
@@ -3,6 +3,7 @@
 namespace SilverStripe\Forms\GridField;
 
 use SilverStripe\Control\HTTPRequest;
+use SilverStripe\Control\HTTPResponse;
 use SilverStripe\Core\Config\Config;
 use SilverStripe\Core\Convert;
 use SilverStripe\Control\Controller;
@@ -261,7 +262,9 @@ class GridFieldAddExistingAutocompleter implements GridField_HTMLProvider, GridF
             );
         }
         Config::unnest();
-        return Convert::array2json($json);
+        $response = new HTTPResponse(Convert::array2json($json));
+        $response->addHeader('Content-Type', 'text/json');
+        return $response;
     }
 
     /**