NGINX Header Blocking Responsive Viewer Frames in WP 6.3

I’ve included the following Nginx header in my configuration for security and have never had an issue until upgrading from the previous version to 6.3:

add_header Content-Security-Policy "default-src 'self' https: data: 'unsafe-inline' 'unsafe-eval';" always;

This policy is now preventing the page editor’s responsive previewing for tablet & mobile from loading by refusing to frame the page blob. When selecting either view type the result is something like this:

https://snipboard.io/CeID6d.jpg

If anyone who’s working with an nginx configuration can offer a suggestion of an edit or alternative policy it would be greatly appreciated as my experience with nginx is relatively basic.

• This topic was modified 1 year, 3 months ago by Moobs.