From 3ac8de0a647ed06396494b24c58ef1c60b11bd00 Mon Sep 17 00:00:00 2001
From: Omar Roth <omarroth@protonmail.com>
Date: Sun, 19 May 2019 07:13:13 -0500
Subject: [PATCH] Fix proxy_file when response body is empty

---
 src/invidious/helpers/helpers.cr | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/invidious/helpers/helpers.cr b/src/invidious/helpers/helpers.cr
index 9dac5213..a3af679e 100644
--- a/src/invidious/helpers/helpers.cr
+++ b/src/invidious/helpers/helpers.cr
@@ -631,6 +631,10 @@ def cache_annotation(db, id, annotations)
 end
 
 def proxy_file(response, env)
+  if response.headers["Content-Length"]? && response.headers["Content-Length"] == "0"
+    return
+  end
+
   if response.headers.includes_word?("Content-Encoding", "gzip")
     Gzip::Writer.open(env.response) do |deflate|
       IO.copy(response.body_io, deflate)