browser private window activation condition

Simon Lundström simlu at su.se
Tue Feb 18 08:26:31 UTC 2025


Hyvää huomenta Timo,

I'm guessing this is for your own testing purposes?

Firefox Private Window doesn't enable SPNEGO even if it's configured so
that's an option.

If you have some user-agent sniffing allow list you can in your testing
browser window change to a user-agent that you don't support see
SPNEGOAuthnConfiguration and Activaction Condition[1].

While I haven't dived into the whole MFA flow thing I'm guessing you can
in some of the first views (client-storage maybe?) add the JavaScript
and trigger/force a different flow?

BR,
- Simon

1,
<https://shibboleth.atlassian.net/wiki/spaces/IDP5/pages/3199506148/SPNEGOAuthnConfiguration#Configuration-of-an-Activation-Condition>

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Simon Lundström

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On Tue, 2025-02-18 at 06:07:28 +0100, Tunturi Timo via users wrote:
> Hi,
> 
> I'd like to use a browser private/incognito/inprivate/etc window activation condition for SPNEGO so that SPNEGO is never offered for browser private windows.
> 
> Seems like such a detection would be done in browser-side javascript doing something like this: https://github.com/Joe12387/detectIncognito
> 
> Is such interaction between server-side code and browser-side javascript possible? Or is there some other way to do what I want to do?
> 
> -- Timo Tunturi / Aalto Uni
> -- 
> For Consortium Member technical support, see https://shibboleth.atlassian.net/wiki/x/ZYEpPw
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