What is CSP and how does it affect browser compatibility?

What is CSP and how does it affect browser compatibility?

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 a webpage. Browser compatibility can vary, as not all browsers support the same CSP directives.

Which browsers fully support CSP?

Most modern browsers, including Chrome, Firefox, Safari, and Edge, have good support for CSP. However, older versions of Internet Explorer may have limited support.

Are there any common issues with CSP in browsers?

Yes, common issues include misconfigured policies that block legitimate resources, and differences in how browsers interpret certain directives. Testing across multiple browsers is essential.

How can I test if my CSP is working correctly?

You can use browser developer tools to check for CSP violations in the console. Additionally, tools like CSP Evaluator can help analyze your policy.

Can CSP impact website performance?

Yes, a strict CSP can impact performance if it blocks necessary resources or requires additional network requests for inline scripts. It's important to balance security and performance.