ff_url_src-testing1

https://www.fanfiction.net/story/story_edit_property.php?storyid=12665453
https://www.fanfiction.net/story/story_edit_content.php?storyid=12665453
https://www.fanfiction.net/story/story_preview.php?storyid=12665453&chapter=1
https://www.fanfiction.net/story/story_backup.php?storyid=12665453
https://www.fanfiction.net/s/12665453/1/Construction-of-Immaterial-Bonds

with just obvious url differences this is very easy to create own downloader (I thought)

and [YOU] yeah you! what did you just read here? =_=
it's fanfic thats all... and url differences xD