I created a script(http/web) to open a url which is challenge-response authentication type(negotiate) applicable. web_set_user("<domain>\\<username>", "<password>", "<server:port>") is used to input username and password. In the run-time settings, "Preferences -> Advanced -> Options -> Enable Integrated Authentication" is enabled. However an internal error is poping out saying "Internal Error - can't parse username <username> [MsgId: MERR-27732]"
Is there anybody knows how to solve this issue?