[squid-users] FTP-Prompt-Behaviour changed between 3.3.11 and >=3.3.13

[Tom Tom]

Hi

Within squid 3.3.11 and 3.3.13 (and of course squid >3.3.13) changed
something concerning browser-behaviour while accessing ftp-sites:

squid 3.3.11
============
ftp://ftp.xxx.xxx -> User is prompted for username/password
(TCP_DENIED/401), when anonymous-access is not allowed


squid 3.3.13 (same config as in 3.3.11)
=======================================
ftp://ftp.xxx.xxx -> User is *not* prompted for username/password
(also TCP_DENIED/401), when anonymous-access is not allowed.

Tested with IE and FF.

Any hints for this behaviour? Is there a way, to enforce the ftp-prompt?
Kind regards,
Tom