From f5ed5f386020a08e8a659f4a6d25d2b875852be8 Mon Sep 17 00:00:00 2001
From: unarist <m.unarist@gmail.com>
Date: Tue, 27 Mar 2018 22:18:35 +0900
Subject: [PATCH] Clone response before put it to the cache (#6932)

`Response.prototype.clone()` must be called before the response used.

This fixes an error from ServiceWorker and failing to load image when the
image is not cached.
---
 app/javascript/mastodon/service_worker/entry.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/javascript/mastodon/service_worker/entry.js b/app/javascript/mastodon/service_worker/entry.js
index b9cf06ef9..160c3fbf2 100644
--- a/app/javascript/mastodon/service_worker/entry.js
+++ b/app/javascript/mastodon/service_worker/entry.js
@@ -56,10 +56,10 @@ self.addEventListener('fetch', function(event) {
         const fetched = await fetch(event.request);
 
         if (fetched.ok) {
-          await cache.put(event.request.url, fetched);
+          await cache.put(event.request.url, fetched.clone());
         }
 
-        return fetched.clone();
+        return fetched;
       }
 
       return cached;