Is it possible to set that the _gaexp cookie will be created with flags SameSite=None; Secure? I'm using Optimize for an app running in iframe and the experiment doesn't work because 3rd party cookie _gaexp is being blocked.
I'm already using this option for analytics.js https://developers.google.com/analytics/devguides/collection/analyticsjs/field-reference#cookieFlags but I didn't find anything similar for Optimize.
I am in a similar case, I think it is not possible.
Here you have the same question without response https://support.google.com/optimize/thread/75547539?hl=en