Keywords: WordPress Multisite - Linux - How to - Domain Name (DNS)
I have Muliti Site installed from an OVA on an ESXi host.
Primary Domain (example.com) works fine and I can install themes and edit and publish.
Subdomain (site1.example.com) is setup with WordPress MU Domain Mapping. Domain mappings points to (site1.com)
When I try to customise the new sites theme, I get "Blocked by Security Content Policy"