Preview in backend not working

[ad_1]

Hi,
I am setting up an ACF group with some FontAwesome icon selector fields. However, the preview is not working. I can search for the words, and results come up, but no preview of the icons themselves. Not in the ACF group, not in the page editor.
In the frontend, everything is okay, because I load FA for other purposes through my theme.
The error I get when checking the browser console ls 403 Forbidden / “not allowed for origin” for the file.

I did some research, and tested by adding this to the .htaccess file in the website root:

<FilesMatch ".(eot|ttf|svg|otf|woff|woff2|js|css)">
  Header set Access-Control-Allow-Origin "*"
</FilesMatch>

But it has not made a difference.
Can you help me get this fixed?

 

This site will teach you how to build a WordPress website for beginners. We will cover everything from installing WordPress to adding pages, posts, and images to your site. You will learn how to customize your site with themes and plugins, as well as how to market your site online.

Buy WordPress Transfer