Reply To: $img_path variable

@ Erika

No, you need use the full URL, not the relative URL that you are trying to use. Example:

define('WP_CONTENT_URL', 'http://domain-name.com/wp-content');

Here is the link to the WP docs about the constants:

https://codex.wordpress.org/Determining_Plugin_and_Content_Directories#Constants

Hope this helps!