This is a testharness.js-based test.
FAIL XMLHttpRequest: WWW-Authenticate challenge when user,pass are not passed to open() assert_equals: expected "usr\nsecret" but got "User name/password wrong or not given: da16e57d-03af-48c0-b46b-32bcb9231c3e\nopen-pass"
Harness: the test ran to completion.

