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Dave,

On 9/11/20 16:29, Dave Ford wrote:
> We've set up out Tomcat Manager to use LDAP for authentication -
> (note, this is not MS AD, but linux-based LDAP server). The OS our
> tomcat servers are running on is Linux and they're not intergrated
> with our AD domain in any way at all.
>
> Our users have been happily logging into the Tomcat manager app
> using various web browsers for some time - they get prompted for a
> username and password, they provide their credentials (which is the
> same user name and password as they're currently logged onto
> windows with, but with no domain\ or @domain info in the username),
> they're checked against LDAP servers, and are let into the app
> assuming they're allowed.
>
> However, we've recently received reports that some of our users
> who have had their Windows machines copies of Edge upgraded to the
> latest version are no longer being prompted for credentials.
> Instead, they're directly immediately to a 401 unauthorised
> message. Other browsers, including Chrome, still prompt.
>
> We've changed nothing at the tomcat end, so this is clearly a
> problem with the behaviour of Edge - but I'm keep to try and
> understand it.

Are you using HTTP or HTTPS?

> I can't find any useful information in the tomcat logs - is it
> possible to turn up the logging for the manager app to see exactly
> what credentials (well, username) is being passed by Edge to it?

This may be a bug in Edge or something having to do with
authentication policies. Microsoft has been actively trying to kill
HTTP Basic authentication for a while.

https://answers.microsoft.com/en-us/microsoftedge/forum/all/latest-versi
on-of-edge-no-longer-shows-basic/3601252b-e56b-46c0-a088-0f6084eabe47

TLDR: visit edge://policy in Edge and look for AuthSchemes. If the
value doesn't include "basic", add it and re-try.

Hope that helps,
- -chris
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