I have a few invisible characters (�) that appear at the end of a javascript document that cause the "illegal character" error in FF or Chrome. I saw different topics about this error, but nothing works for me, and i can't see anything wrong in my document (displaying invisible characters, open it with a hexadecimal editor). This is just driving me crazy. I use Vagrant with a nginx web server. The document looks clear in the server too (vi + :set list).
Plus, when I get back a clear document from my Git repository, everything works(normal). But each time I want to edit it (like create a new variable at the top of document), I got this error again.
If someone can helps me, thank you.
It seems that you're using Vagrant.. please take a look at your _Vagrantfile and check the way files are written on the VM filesystem.
cat ~/.vagrant.d/boxes/[YOUR VM NAME]/include/_Vagrantfile
Maybe you are using config.vm.synced_folder try to use NFS:
config.vm.synced_folder "/home/myuser/shared", ".", :nfs => true