Version: 49 - 50
OS: All

What steps will reproduce the problem?
(1) Visit a site that offers HTTPBasic Auth like https://httpbin.org/basic-auth/user/passwd

What is the expected output? 
AuthName used to show on .htacess settings

What do you see instead?
AuthName is not shown starting M49

Screenshot: https://screenshot.googleplex.com/8NNoRYtNOfw
Forum thread: https://productforums.google.com/forum/#!topic/chrome-ja/wmxdki5xewk