Dynamic

Content Security Policy vs Subresource Integrity

Developers should learn and implement CSP when building web applications that handle sensitive user data or require high security, such as banking sites, e-commerce platforms, or any service vulnerable to XSS attacks meets developers should use sri when loading external resources from cdns or third-party services to ensure integrity and protect against supply-chain attacks, such as when a cdn is hacked or a library is tampered with. Here's our take.

🧊Nice Pick

Content Security Policy

Developers should learn and implement CSP when building web applications that handle sensitive user data or require high security, such as banking sites, e-commerce platforms, or any service vulnerable to XSS attacks

Content Security Policy

Nice Pick

Developers should learn and implement CSP when building web applications that handle sensitive user data or require high security, such as banking sites, e-commerce platforms, or any service vulnerable to XSS attacks

Pros

  • +It is particularly useful in modern web development to mitigate client-side security threats and comply with security best practices, as it provides an additional layer of defense beyond input validation and sanitization
  • +Related to: cross-site-scripting, http-headers

Cons

  • -Specific tradeoffs depend on your use case

Subresource Integrity

Developers should use SRI when loading external resources from CDNs or third-party services to ensure integrity and protect against supply-chain attacks, such as when a CDN is hacked or a library is tampered with

Pros

  • +It is particularly critical for security-sensitive applications like banking sites, e-commerce platforms, or any site handling user data, as it mitigates risks from man-in-the-middle attacks or compromised dependencies
  • +Related to: content-security-policy, web-security

Cons

  • -Specific tradeoffs depend on your use case

The Verdict

Use Content Security Policy if: You want it is particularly useful in modern web development to mitigate client-side security threats and comply with security best practices, as it provides an additional layer of defense beyond input validation and sanitization and can live with specific tradeoffs depend on your use case.

Use Subresource Integrity if: You prioritize it is particularly critical for security-sensitive applications like banking sites, e-commerce platforms, or any site handling user data, as it mitigates risks from man-in-the-middle attacks or compromised dependencies over what Content Security Policy offers.

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The Bottom Line
Content Security Policy wins

Developers should learn and implement CSP when building web applications that handle sensitive user data or require high security, such as banking sites, e-commerce platforms, or any service vulnerable to XSS attacks

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