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Can't authenticate through NTLM / Windows Integrated Authentication

Charles supports NTLM authenticating websites. You can access NTLM authenticating websites through Charles without any problems.

NTLM authentication is also known as “Windows NT Challenge Response” and “Integrated Windows Authentication” and is mainly used in conjunction with IIS.

NOTE You have to use HTTP 1.1 in order to use NTLM authentication through Charles. See more information on configuring your web browser to use HTTP 1.1