Access denied by security policy

The CMS Questions
1

Hi, I’ve set up a site for a customer on a live server. Locally everything was working. On the live-server, when I try to add an image to a structure and click ‘ok’ in the panel, there is an error showing up in a modal:

image
image979×289 16 KB

What could cause this error? Host is hoststar.at

2

The server is sending a Content Security Policy (CSP) header which is too restrictive or has to be configured with exceptions.

3

If you are not setting those Content Security headers, you will have to contact your provider.