From 413177c8f0e4b15eb085c4efa26c94d572ee8d88 Mon Sep 17 00:00:00 2001
From: Mark Felder <feld@FreeBSD.org>
Date: Fri, 13 Mar 2020 12:02:58 -0500
Subject: [PATCH] Set correct Cache-Control header for local media

---
 lib/pleroma/plugs/uploaded_media.ex | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/pleroma/plugs/uploaded_media.ex b/lib/pleroma/plugs/uploaded_media.ex
index f372829a2..57097baae 100644
--- a/lib/pleroma/plugs/uploaded_media.ex
+++ b/lib/pleroma/plugs/uploaded_media.ex
@@ -14,6 +14,8 @@ defmodule Pleroma.Plugs.UploadedMedia do
   # no slashes
   @path "media"
 
+  @default_cache_control_header "public max-age=86400 must-revalidate"
+
   def init(_opts) do
     static_plug_opts =
       []
@@ -58,6 +60,10 @@ defmodule Pleroma.Plugs.UploadedMedia do
       Map.get(opts, :static_plug_opts)
       |> Map.put(:at, [@path])
       |> Map.put(:from, directory)
+      |> Map.put(:cache_control_for_etags, @default_cache_control_header)
+      |> Map.put(:headers, %{
+        "cache-control" => @default_cache_control_header
+      })
 
     conn = Plug.Static.call(conn, static_opts)