From efec646ecb109b03b61f860e0ab0d7a885aedcab Mon Sep 17 00:00:00 2001
From: Varun Patil <varunpatil@ucla.edu>
Date: Mon, 27 Feb 2023 10:01:04 -0800
Subject: [PATCH] image: use output buffer for multipreview

---
 lib/Controller/ImageController.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Controller/ImageController.php b/lib/Controller/ImageController.php
index 17711fdf..f414b4fb 100644
--- a/lib/Controller/ImageController.php
+++ b/lib/Controller/ImageController.php
@@ -151,6 +151,7 @@ class ImageController extends ApiBase
                     continue;
                 }
 
+                ob_start();
                 echo json_encode([
                     'reqid' => $reqid,
                     'Content-Length' => \strlen($content),
@@ -158,7 +159,7 @@ class ImageController extends ApiBase
                 ]);
                 echo "\n";
                 echo $content;
-                flush();
+                ob_end_flush();
             } catch (\OCP\Files\NotFoundException $e) {
                 continue;
             } catch (\Exception $e) {