From d3cf221e779b1242c0d9a77651be86cf0ee42245 Mon Sep 17 00:00:00 2001
From: ccd0 <admin@containerchan.org>
Date: Sun, 21 Jun 2015 15:13:04 -0700
Subject: [PATCH] Trying to access contentWindow caused error in
 FF+Greasemonkey.

This works in both FF and Chromium.
---
 src/General/lib/connection.class | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/General/lib/connection.class b/src/General/lib/connection.class
index ee23674ec..fc2c001be 100644
--- a/src/General/lib/connection.class
+++ b/src/General/lib/connection.class
@@ -3,7 +3,10 @@ class Connection
     $.on window, 'message', @onMessage
 
   targetWindow: ->
-    @target.contentWindow or @target
+    if @target instanceof window.HTMLIFrameElement
+      @target.contentWindow
+    else
+      @target
 
   send: (data) =>
     @targetWindow().postMessage "#{g.NAMESPACE}#{JSON.stringify data}", @origin