We've our web-server (Win2k3/IIS6 with ASP enabled) behind a Proxy/Firewall (MS-ISA 2k7) with configuration to publish (via HTTPS protocol) our internal web-server/application to the internet: the "reverse proxy" feature require a "plain text" authentication (protected with HTTPS) to access to DMZ.
Inside our network (intranet) everything works fine with all OS/Browser type/version combinations (wintel, mac / IE, FF, Opera, Chrome, Safari, etc.), but from outside (internet) some mac are experiencing error using Flash method to post file(s); instead for wintel clients everything works fine also from internet.
The error is: "Flash: The upload task is interrupted! io Error #2038"
This happens ONLY with mac from outside/internet, using every combination of OS/Broswer type/version (Tiger, Leopard, SnowLeopard / Safari, FF, IE5 for mac)...
Do you have any idea?
Thanks in advance.