Make original parent node of thumbnail post.file.thumbLink.

src/Images/Gallery.coffee

@@ -25,7 +25,7 @@ Gallery =
       Gallery.nodes.total.textContent = Gallery.images.length
 
     unless Conf['Image Expansion']
-      $.on @file.thumb.parentNode, 'click', Gallery.cb.image
+      $.on @file.thumbLink, 'click', Gallery.cb.image
 
   build: (image) ->
     {cb} = Gallery
@@ -88,7 +88,7 @@ Gallery =
       Gallery.generateThumb post
       # If no image to open is given, pick image we have scrolled to.
       if !image and Gallery.fullIDs[post.fullID]
-        candidate = post.file.thumb.parentNode
+        candidate = post.file.thumbLink
         if Header.getTopOf(candidate) + candidate.getBoundingClientRect().height >= 0
           image = candidate
     $.addClass doc, 'gallery-open'

src/Images/ImageExpand.coffee

@@ -20,7 +20,7 @@ ImageExpand =
 
   node: ->
     return unless @file and (@file.isImage or @file.isVideo)
-    $.on @file.thumb.parentNode, 'click', ImageExpand.cb.toggle
+    $.on @file.thumbLink, 'click', ImageExpand.cb.toggle
 
     if @isClone 
       if @file.isExpanding
@@ -122,8 +122,8 @@ ImageExpand =
     $.rmClass post.nodes.root, 'expanded-image'
     $.rmClass file.thumb,      'expanding'
     $.rm file.videoControls
-    file.thumb.parentNode.href   = file.url
-    file.thumb.parentNode.target = '_blank'
+    file.thumbLink.href   = file.url
+    file.thumbLink.target = '_blank'
     for x in ['isExpanding', 'isExpanded', 'videoControls', 'wasPlaying', 'scrollIntoView']
       delete file[x]
 
@@ -158,7 +158,7 @@ ImageExpand =
   expand: (post, src) ->
     # Do not expand images of hidden/filtered replies, or already expanded pictures.
     {file} = post
-    {thumb, isVideo} = file
+    {thumb, thumbLink, isVideo} = file
     return if post.isHidden or file.isExpanding or file.isExpanded
 
     $.addClass thumb, 'expanding'
@@ -187,8 +187,8 @@ ImageExpand =
         $.add file.text, file.videoControls
 
       # disable link to file so native controls can work
-      thumb.parentNode.removeAttribute 'href'
-      thumb.parentNode.removeAttribute 'target'
+      thumbLink.removeAttribute 'href'
+      thumbLink.removeAttribute 'target'
 
       el.loop = true
       Volume.setup el

src/Images/Volume.coffee

@@ -62,7 +62,7 @@ Volume =
   node: ->
     return unless @board.ID in ['gif', 'wsg'] and @file?.isVideo
     $.on @file.thumb,        'wheel', Volume.wheel.bind(Header.hover)
-    $.on $('a', @file.text), 'wheel', Volume.wheel.bind(@file.thumb.parentNode)
+    $.on $('a', @file.text), 'wheel', Volume.wheel.bind(@file.thumbLink)
 
   catalogNode: ->
     {file} = @thread.OP

src/classes/Post.Clone.coffee

@@ -44,7 +44,8 @@ Post.Clone = class extends Post
       {fileRoot} = @nodes
       @file.text  = fileRoot.firstElementChild
       @file.link  = $ '.fileText > a, .fileText-original', fileRoot
-      @file.thumb = $ '.fileThumb > [data-md5]', fileRoot
+      @file.thumb = $ 'a.fileThumb > [data-md5]', fileRoot
+      @file.thumbLink = @file.thumb.parentNode
       @file.fullImage = $ '.full-image', fileRoot
       @file.videoControls = $ '.video-controls', @file.text
 

src/classes/Post.coffee

@@ -182,9 +182,10 @@ class Post
     unit  = ['B', 'KB', 'MB', 'GB'].indexOf @file.size.match(/\w+$/)[0]
     size *= 1024 while unit-- > 0
     @file.sizeInBytes = size
-    if (thumb = $ '.fileThumb > [data-md5]', fileRoot)
+    if (thumb = $ 'a.fileThumb > [data-md5]', fileRoot)
       $.extend @file,
         thumb:     thumb
+        thumbLink: thumb.parentNode
         thumbURL:  if m = link.href.match(/\d+(?=\.\w+$)/) then "#{location.protocol}//i.4cdn.org/#{@board}/#{m[0]}s.jpg"
         MD5:       thumb.dataset.md5
         isSpoiler: $.hasClass thumb.parentNode, 'imgspoiler'