When using safari on system that has a proxy that requires ntlm authentication or the user tries to access a windows authenticated website the user is challenged for username and password. I understand that this may be by design because ntlm over the internet is not secure. Internet explorer gets around this by recognising the difference between local sites and internet sites. This bug/feature is a bit blocker to having safari used in many enterprises. Could safari/webkit be enhanced to allow windows credentials to be passed on when the destination site on a private ip range (192.188.. 10.0.. ip ranges) but challenge the user when going on to internet sites?
<rdar://problem/7124696>
Re-titling to (hopefully) better describe the issue.
Safari is no longer supported on Windows.