Javascript files not being over-written

[Beagle2]

I have the automatic save/upload feature on (where CoreFTP uploads the file when I save it in the editor), but this doesn't seem to work with .js files.

Also, when I download the file to my computer, change it, and then try to upload it again (replacing the current version of the file on the server), that doesn't work either.

Basically, .js files cannot be replaced/over-written.

Any ideas how to fix this?

Thanks in advance!

(N.B. I'm using CoreFTP Lite v2.1, but it also happened on the previous version too.)

EDIT: I think it's because of the CHMOD permissions of the files (and hence not limited to the .js one. If you change the permission to 644 from 444 it'll work.