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Microsoft

Re: Teams Personal Tab app sending cookies

marcuswelby - Got it. We will check this with engineering team internally and will update you accordingly. Thanks!

marcuswelby
Copper Contributor
Sep 28, 2023
Using samesite=none;secure on the cookies seems to work in Teams/Edge but not in Firefox. I think related to the fact the tab app is in an iframe and any cookies are considered 3rd party since different domain of iframe than parent.