Merge remote-tracking branch 'remotes/origin/develop' into 1560-non-federating-instances-routes-restrictions

# Conflicts:
#	lib/pleroma/plugs/static_fe_plug.ex

lib/pleroma/plugs/static_fe_plug.ex

@@ -21,9 +21,9 @@ defmodule Pleroma.Plugs.StaticFEPlug do
   defp enabled?, do: Pleroma.Config.get([:static_fe, :enabled], false)
 
   defp accepts_html?(conn) do
-    conn
-    |> get_req_header("accept")
-    |> List.first()
-    |> String.contains?("text/html")
+    case get_req_header(conn, "accept") do
+      [accept | _] -> String.contains?(accept, "text/html")
+      _ -> false
+    end
   end
 end

lib/pleroma/plugs/uploaded_media.ex

@@ -14,9 +14,14 @@ defmodule Pleroma.Plugs.UploadedMedia do
   # no slashes
   @path "media"
 
+  @default_cache_control_header "public, max-age=1209600"
+
   def init(_opts) do
     static_plug_opts =
-      []
+      [
+        headers: %{"cache-control" => @default_cache_control_header},
+        cache_control_for_etags: @default_cache_control_header
+      ]
       |> Keyword.put(:from, "__unconfigured_media_plug")
       |> Keyword.put(:at, "/__unconfigured_media_plug")
       |> Plug.Static.init()