   return
 
 WindowTitleHandler::update = ->
-  title = undefined
   post = Post.posts.get(@post_id)
   if @pool
     title = @pool.name.replace(/_/g, ' ')

      new_preload_container.preload post.sample_url
    ++i

  ### If we already were preloading images, we created the new preloads before
  # deleting the old ones.  That way, any images that are still being preloaded
  # won't be deleted and recreated, possibly causing the download to be interrupted
  # and resumed. 
  ###

  if @preload_container
    @preload_container.destroy()
  @preload_container = new_preload_container

#   as necessary to paint, but that's a lot more work.
# - Canvas won't blit partially-loaded images, so we do nothing until the image is complete.
###
BrowserView::update_canvas = ->
  if !@img.fully_loaded
    debug 'image incomplete; can\'t render to canvas'
