4chan has moved thumbnails to i.4cdn.org.

src/General/Build.coffee

@@ -14,9 +14,6 @@ Build =
       "#{filename[...threshold - 5]}(...)#{ext}"
     else
       filename
-  thumbRotate: do ->
-    n = 0
-    -> n = (n + 1) % 2
   sameThread: (boardID, threadID) ->
     g.VIEW is 'thread' and g.BOARD.ID is boardID and g.THREADID is +threadID
   postURL: (boardID, threadID, postID) ->
@@ -62,7 +59,7 @@ Build =
         width:     data.w
         MD5:       data.md5
         size:      data.fsize
-        turl:      "//#{Build.thumbRotate()}.t.4cdn.org/#{boardID}/#{data.tim}s.jpg"
+        turl:      "//i.4cdn.org/#{boardID}/#{data.tim}s.jpg"
         theight:   data.tn_h
         twidth:    data.tn_w
         isSpoiler: !!data.spoiler

src/General/Get.coffee

@@ -231,7 +231,7 @@ Get =
         width:     data.media.media_w
         MD5:       data.media.media_hash
         size:      data.media.media_size
-        turl:      data.media.thumb_link or "//t.4cdn.org/#{boardID}/#{data.media.preview_orig}"
+        turl:      data.media.thumb_link or "//i.4cdn.org/#{boardID}/#{data.media.preview_orig}"
         theight:   data.media.preview_h
         twidth:    data.media.preview_w
         isSpoiler: data.media.spoiler is '1'

src/General/lib/post.class

@@ -14,7 +14,6 @@ class Post
     for el in $$ 'a[rel=canonical]', root2
       el.removeAttribute 'rel'
     for el in $$ 'img[src]', root2
-      el.src = el.src.replace /^(\w+:\/\/)[0-2](\.t\.4cdn\.org\/)/, '$10$2'
       el.src = el.src.replace /(spoiler-\w+)\d(\.png)$/, '$11$2'
     Fourchan.code.call nodes: comment: $ '.postMessage', root2
     for el in $$ 'pre[style=""]', root2
@@ -175,7 +174,7 @@ class Post
     unit  = ['B', 'KB', 'MB', 'GB'].indexOf @file.size.match(/\w+$/)[0]
     size *= 1024 while unit-- > 0
     @file.sizeInBytes = size
-    @file.thumbURL = "#{location.protocol}//t.4cdn.org/#{@board}/#{@file.URL.match(/(\d+)\./)[1]}s.jpg"
+    @file.thumbURL = "#{location.protocol}//i.4cdn.org/#{@board}/#{@file.URL.match(/(\d+)\./)[1]}s.jpg"
     @file.isImage = /(jpg|png|gif)$/i.test @file.URL
     @file.isVideo = /webm$/i.test @file.URL
     nameNode = $ 'a', fileText