Do I need to configure SVG images showing in nginx?

Add SVG image/svg+xml svg svgz; to your mime types in /etc/nginx/mime.types and reload your Nginx.

When Nginx doesn't recognize the mime type for .svg files, it serves them with content type header content-type: text/plain and your browser may not render them or may issue a warning to the web console.

1. Ensure that /etc/nginx/mime.types defines a mime type for svg images:

   types {
     ...
     image/svg+xml   svg svgz;
     ...
   }
   

2. Ensure that /etc/nginx/nginx.conf includes the mime.types file in the http block:

   http {
     include mime.types;
     ...
   }
   

3. In the terminal check that your new nginx configuration has no errors:

   sudo nginx -t
   

4. Restart NGINX for the changes to take effect

   sudo systemctl restart nginx   // e.g.: ubuntu
   

5. In your browser dev tools under network headers, check that svg files are served with header Content-Type: image/svg+xml and possibly hard refresh your web page to update the browser cache.