www.jfileupload.com

I have a customer reporting this error today. I had him view
the html source and verify that param7 and value7 were defined as
you suggested back.

He is getting this error message with Safari using both OS-X 10.5.1
and OS-X 10.4. Both of these operating systems work fine when I
try them here.

He has been able use the uploaded applet in past but it doesn't
work anymore. He also likes to install the latest upgrades.

Do you have another suggestion that would help?

Maybe the firewall included in OSX. The upgrade might have disabled FTP port. Could you check that ? Also, you're using PASV mode in applet ?

1. Client assures me the OSX firewall is off.
2. FTP port should be OK, works for other clients.
3. Making the suggested change for PASV. Will test with the client.

Thanks.

Thanks, setting PASV to True fixed our problem. Are there any security issues with PASV set to True?

No, PASV is safer than ACTIVE mode.