SameSite cookie attribute - correct settings for iframe

[bbraden1115]

I'm looking for guidance on the proper way to configure samesite cookie attributes to allow for iframes in external server web app to load correctly. I currently am receiving CORS policy errors in the chrome console due to the SameSite cookie settings. My settings in Qlik Sense (Nov 2020) are the default settings. Previously, I attempted to resolve this issue by setting the SameSite attribute to 'None', which caused a failure in which Qlik would continuously attempt to authenticate every 1 second(s). 

[bbraden1115]

Image of response headers when authenticating. Warning message on set-cookie is "Set-Cookie had to have been set with "SameSite=None""