Allow inline style attibute on element using Content Security Policy (CSP)

Am actually using slick slider. So i decided to replace the background image with img and its now okay.

PHP Code:

<img src="<?= base_url($sliderimages['image_path']); ?>" alt=""> 


I also noticed that codeigniter does not seem to support the 'unsafe-inline'. I have the following in my BaseController

PHP Code:

$response->CSP->addStyleSrc(['self', 'unsafe-inline', 'https://fonts.googleapis.com'], false); 


The browser console shows the following warning;

Code:

Content Security Policy: Ignoring “'unsafe-inline'” within script-src or style-src: nonce-source or hash-source specified

What could be the issue here?