How does the style-src restrict the editing of JavaScript in inline styles?

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The style-src directive is a Content Security Policy (CSP) directive that specifies the sources from which the browser can load styles. This directive can be used to restrict the editing of JavaScript in inline styles by disallowing the use of inline styles altogether or by allowing only trusted sources of inline styles.

If inline styles are disallowed, then any attempt to include JavaScript code in a style attribute will be blocked by the CSP. This is because the browser will not allow the execution of scripts in a style attribute when the style-src is set to 'none'.

If trusted sources of inline styles are allowed, then the CSP will only permit scripts from those sources to be executed within inline styles. This prevents attackers from injecting malicious scripts into inline styles and causing harm to the user or the website.

Overall, the style-src directive provides an added layer of security to web applications by preventing unauthorized access to JavaScript code within inline styles.