<div dir="ltr"><div>I found the problem. We had maxTimeSinceAuthn=120. It's been like that since 2021, and we hadn't seen issues. However, we recently started enforcing MFA, and now it seems users are taking longer than 2 minutes to complete the auth flow. And it's worse when they are first establishing their MFA device. In theory, I guess we could remove that setting since NotOnOrAfter is 5 minutes. I increased maxTimeSinceAuthn to 300, and we have stopped seeing the issue. <br><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">--<br><br>Thanks,<br><br>Dan </div></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Jun 8, 2026 at 12:08 PM Scott Cantor via users <<a href="mailto:users@shibboleth.net">users@shibboleth.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
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> On Jun 8, 2026, at 12:55 PM, Dan McLaughlin <<a href="mailto:dmclaughlin@tech-consortium.com" target="_blank">dmclaughlin@tech-consortium.com</a>> wrote:<br>
> <br>
> That may not be it then. Firefox we have the same issue as Chrome. I'll keep digging, but I think you might be on to something regarding cookies. <br>
> <br>
> Of all the cookies, which in your opinion is most likely the cause? One of the shib cookies, or the jsessionid?<br>
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The error is due to JSESSIONID being absent or the container session timing out. That is literally what the error means, it's not a matter of opinion. Why is the only relevant question.<br>
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It's not impossible Firefox reintroduced it. They never publicly documented anything we could find when they reversed it, so no reason they'd disclose that they changed it back.<br>
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And in fact I just checked and lo and behold the FF settings are magically back again, so I think they repeated their original mistake and copied what Chrome did. They all start with network.cookie.sameSite. I'll revert any change to the documentation since it's back.<br>
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Apple, to their immense credit, has still AFAIK rejected implementing this idiotic idea.<br>
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-- Scott<br>
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-- <br>
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