From 195463736cfe21971171aa911dfb45d25dc87354 Mon Sep 17 00:00:00 2001
From: George Claghorn <george@basecamp.com>
Date: Fri, 27 Jul 2018 00:11:22 -0400
Subject: Fix directly uploading zero-byte files

Closes #33450.
---
 activestorage/app/assets/javascripts/activestorage.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'activestorage/app/assets/javascripts')

diff --git a/activestorage/app/assets/javascripts/activestorage.js b/activestorage/app/assets/javascripts/activestorage.js
index a22f644238..d3fd795a3a 100644
--- a/activestorage/app/assets/javascripts/activestorage.js
+++ b/activestorage/app/assets/javascripts/activestorage.js
@@ -484,7 +484,7 @@
     }, {
       key: "readNextChunk",
       value: function readNextChunk() {
-        if (this.chunkIndex < this.chunkCount) {
+        if (this.chunkIndex < this.chunkCount || this.chunkIndex == 0 && this.chunkCount == 0) {
           var start = this.chunkIndex * this.chunkSize;
           var end = Math.min(start + this.chunkSize, this.file.size);
           var bytes = fileSlice.call(this.file, start, end);
-- 
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