From 6f3c84bf77989564c93dc6a3a5e41b66cb04b3e5 Mon Sep 17 00:00:00 2001
From: Karishma Chadha <kchadha@scratch.mit.edu>
Date: Tue, 10 Apr 2018 17:01:31 -0400
Subject: [PATCH] Ensure we are serializing file extensions for costumes and
 sounds as lower case.

---
 src/serialization/sb3.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/serialization/sb3.js b/src/serialization/sb3.js
index 8a786c484..7b56c0beb 100644
--- a/src/serialization/sb3.js
+++ b/src/serialization/sb3.js
@@ -306,7 +306,7 @@ const serializeCostume = function (costume) {
     // but that change should be made carefully since it is very
     // pervasive
     obj.md5ext = costume.md5;
-    obj.dataFormat = costume.dataFormat;
+    obj.dataFormat = costume.dataFormat.toLowerCase();
     obj.rotationCenterX = costume.rotationCenterX;
     obj.rotationCenterY = costume.rotationCenterY;
     return obj;
@@ -321,7 +321,7 @@ const serializeSound = function (sound) {
     const obj = Object.create(null);
     obj.assetId = sound.assetId;
     obj.name = sound.name;
-    obj.dataFormat = sound.dataFormat;
+    obj.dataFormat = sound.dataFormat.toLowerCase();
     obj.format = sound.format;
     obj.rate = sound.rate;
     obj.sampleCount = sound.sampleCount;