diff --git a/src/platform/$.coffee b/src/platform/$.coffee
index 3bcb24a34..e0a6250f0 100644
--- a/src/platform/$.coffee
+++ b/src/platform/$.coffee
@@ -50,7 +50,7 @@ $.ajax = do ->
     {onloadend, timeout, responseType, withCredentials, type, onprogress, form, headers} = options
     responseType ?= 'json'
     # XXX https://forums.lanik.us/viewtopic.php?f=64&t=24173&p=78310
-    url = url.replace /^((?:https?:)?\/\/(?:\w+\.)?4c(?:ha|d)n\.org)\/adv\//, '$1//adv/'
+    url = url.replace /^((?:https?:)?\/\/(?:\w+\.)?(?:4chan|4channel|4cdn)\.org)\/adv\//, '$1//adv/'
     r = new pageXHR()
     type or= form and 'post' or 'get'
     try
diff --git a/src/platform/CrossOrigin.coffee b/src/platform/CrossOrigin.coffee
index 117060199..ad2c94dba 100644
--- a/src/platform/CrossOrigin.coffee
+++ b/src/platform/CrossOrigin.coffee
@@ -12,7 +12,7 @@ eventPageRequest = do ->
 CrossOrigin =
   binary: (url, cb, headers={}) ->
     # XXX https://forums.lanik.us/viewtopic.php?f=64&t=24173&p=78310
-    url = url.replace /^((?:https?:)?\/\/(?:\w+\.)?4c(?:ha|d)n\.org)\/adv\//, '$1//adv/'
+    url = url.replace /^((?:https?:)?\/\/(?:\w+\.)?(?:4chan|4channel|4cdn)\.org)\/adv\//, '$1//adv/'
     <% if (type === 'crx') { %>
     eventPageRequest {type: 'ajax', url, headers, responseType: 'arraybuffer'}, ({response, responseHeaderString}) ->
       response = new Uint8Array(response) if response