Login Loop for embedded Stream Video
We have configured Windows Single Sign On to Microsoft 365 in Firefox 102.6.0esr (64-Bit).
We have embedded a Video from the new Microsoft Stream on SharePoint Online into a SharePoint 2019 onpremise Site via the provided iFrame. Here every user gets an endless Login Loop (see Screenshot).
If you open the deeplink to the video, Single Sign On works perfectly.
And this also works in Microsoft Edge, why the Microsoft support is not willing to analyse this issue further.
Do you have any ideas how to narrow down the problem?
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That samesite error concerns me. Samesite cookies shouldn't be turned on for Firefox.
If you don't enable Windows single signon, can you login and the video works?
Thank you for the quick answer. Unfortunatly the Same Site Cookie errors are normal and built in by Microsoft for SharePoint onpremise, they should not be the problem.
I now set Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\WindowsSSO to Zero, cleared all cokies and tried again. If I now use the deep link I get the login prompt. However on the site with the iFrame I still see the login loop. Anymore ideas on that?
Can you try going to about:config and searching for
network.auth.choose_most_secure_challenge
and set it to false and see if it helps?
If it doesn't, we'll switch the conversation to Bugzilla and get some logging together.
Setting this parameter also makes no difference here. How to continue in Budzilla?
Can you create an account here?
https://bugzilla.mozilla.org/home
And I'll work with you to get the bug opened.
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