MayhemYDG/4chan-x — comment on commit 0055c6d1646928f47aff11c113280308b89e6665
File:  line 0
By MayhemYDG:

Posting works fine, but...

>https://bugzilla.mozilla.org/show_bug.cgi?id=673742
>We plan to allow postMessaging Files and FileLists across origins, that just needs a more in depth security review.

GODAMN FIREFOX! Someone open an issue in bugzilla to allow postMessaging files across origins.
You'll have to deal with empty filenames on lolfox until then.