hi there,
Somehow pro will not open from the backend, If I try to edit a post. From the frontend it does.
pls see: https://youtu.be/TaHcCTJk8I4
I quit the pre-load from backend after several minutes.
thanks!
Hi There,
It is because of this error: 
You have SSL and set to use https on your site. Frontend is force to be https so when we go to editing the page using the content builder, it is redirecting correctly on https. On the other hand, on the backend, when we edit page, it goes to not secured site http only, thus when we click pro button, it redirects to a non secure page thus causing above error. To fix this, go to the following settings and update those two URL to https://overhead.at
Hope this helps.
YES! thanks a load!
You’re very welcome. Have a great day!