Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://some-url-here. (Reason: additional information here).
Mautic allows to set up which remote domains the system is allowed to make request from. This configuration can be found at Configuration / System Settings / CORS Settings.
If you turn the restrictions on you may enter valid domains from which the system is allowed to be reached:
Pay attention to the syntax:
- Write only one domain in each line
- Set the protocoll properly (https://)
- Strip the / character from the end of the url.