What is CSP configuration and how do I implement it?

What is CSP configuration and how do I implement it?

CSP stands for Content Security Policy. It's a security feature that helps prevent various attacks like Cross-Site Scripting (XSS) by controlling which resources can be loaded on your web page. To implement it, you need to add a CSP header to your HTTP response.

Can you give me an example of a CSP header?

Sure! A simple CSP header might look like this: Content-Security-Policy: default-src 'self'; img-src https://example.com; This allows resources to be loaded only from the same origin and images from 'https://example.com'.

What happens if I don't set a CSP?

Without a CSP, your site is more vulnerable to attacks like XSS, as it allows any resource to be loaded from any source, increasing the risk of malicious content.

How can I test if my CSP is working?

You can use browser developer tools to check the network requests and see if any resources are being blocked by your CSP. Additionally, tools like CSP Evaluator can help analyze your policy.