Exchange 2016 OWA legacy logoff mode

Question

We have been using the unofficial fix from INFSC to enable the legacy logoff mode. The fix no longer works in our environment with CU18 and CU19. Anyone tried it with CU18 or CU19? thanks

THE FIX :
Edit Exchange\V15\ClientAccess\Owa\prem\15.1.1034.26\scripts\microsoft.owa.core.models.js
Add this line
$(document).ready(function(){ $('._ho2_2').click(function () { $('body > div:last-child ._abs_c div[role=menu] > div > div:last-child > button').on('click', function () { window.location.href= './logoff.owa' }) }) });
Save & iisreset*

Original thread: htps://social.technet.microsoft.com/Forums/en-US/71462d67-f05b-4d74-af63-b22f3dea35d7/exchange-2016-logoff-does-not-generate-logoff-request?forum=Exch2016GD#889ee5b4-16d7-442b-8926-aaee43e757b1

Answer 1

Hi Eric, actually the issue resolved by itself after a few days. When I had the problem, it happens on all browsers and multiple workstation. All Exchange servers were recycled too. So I suspect some caching issue on F5 or client side.

thanks

Answer 2

Does the workround that changing authentication to form based authentification work for you?
https://social.technet.microsoft.com/Forums/ie/en-US/1314ed16-48e3-4813-96c7-a5465a83c61d/owaecp-signout-does-not-logoff-user-or-closes-session?forum=exchangesvrclients
https://www.franken.pro/blog/outlook-web-access-sign-out-broken-after-exchange-2016-cu-4-and-basic-401-authentication

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Answer 3

We use a F5 to pre-authenticate HTTPS request to Exchange, so cannot use Exchange FBA.