-# +set-image-blocker{blank}
-# +set-image-blocker{pattern}
-# +set-image-blocker{<URL>} with <url> being any valid image URL
-# Decides what to do with URLs that end up tagged with {+block +handle-as-image}.
-# There are 4 options:
-# * "-set-image-blocker" will send a HTML "blocked" page, usually
-# resulting in a "broken image" icon.
-# * "+set-image-blocker{blank}" will send a 1x1 transparent image
-# * "+set-image-blocker{pattern}" will send a 4x4 grey/white pattern
-# which is less intrusive than the logo but easier to recognize
-# than the transparent one.
-# * "+set-image-blocker{<URL>}" will send a HTTP temporary redirect
-# to the specified image URL.
-#
-#