From ffd002dc76341d6ff9494a83796093410b37c20e Mon Sep 17 00:00:00 2001
From: Simon Detheridge <s@sd.ai>
Date: Mon, 6 Jan 2020 15:47:46 +0000
Subject: [PATCH] Add explanatory comment

---
 services/filestore/app/js/FileController.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/services/filestore/app/js/FileController.js b/services/filestore/app/js/FileController.js
index 726438a557..eef441436c 100644
--- a/services/filestore/app/js/FileController.js
+++ b/services/filestore/app/js/FileController.js
@@ -62,6 +62,7 @@ function getFile(req, res, next) {
 
     logger.log({ key, bucket, format, style }, 'sending file to response')
 
+    // pass 'next' as a callback to 'pipeline' to receive any errors
     pipeline(fileStream, res, next)
   })
 }