From b0a8de7ca08bf8d2b6f715c6063a5f878a07af23 Mon Sep 17 00:00:00 2001
From: Jaifroid <egk10@cam.ac.uk>
Date: Tue, 3 Mar 2020 21:55:33 +0000
Subject: [PATCH] Revert use of Response (no advantage)

Former-commit-id: 67670b7433fcbb107b5b96ec3195365fd721eeb8 [formerly f7ff53c22de3eac1c754e28d49b4961aa4fd2210]
Former-commit-id: 43ce5692ac696fadc47cc7a441e8938d73f5ad76
---
 www/js/lib/filecache.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/www/js/lib/filecache.js b/www/js/lib/filecache.js
index d21d4573..c12df56f 100644
--- a/www/js/lib/filecache.js
+++ b/www/js/lib/filecache.js
@@ -155,8 +155,8 @@ define(['q'], function(Q) {
         });
     };
     var readInternal = function (file, begin, end) {
-        if ('Response' in window && file.readMode !== 'electron') {
-            return new Response(file.slice(begin, end)).arrayBuffer().then(function (buffer) {
+        if ('arrayBuffer' in Blob.prototype && file.readMode !== 'electron') {
+            return file.slice(begin, end).arrayBuffer().then(function (buffer) {
                 return new Uint8Array(buffer);
             });
         } else {