When trying to connect porwe BI to mailchimp the popup tries to load an invalid url :
Beacause of this, it is impossible to use the conenctor to Mailchimp
This cause of this issue should be same as the one mentiond in this thread.
I've reported it internally to Power BI Team: CRI 36893443I'll post here once I get any update about it.
You can use chrome as mitigation. This issue should can be fixed on 5/10/2017. Please check it later.
Not working yet.
This issue should has been fixed now.