HTML5 Security - HTML5 Security Cheat-Sheet

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HTML5 Security Cheat-Sheet​

HTML5 Security Cheat-Sheet provides essential guidelines for securing web applications using HTML5. Key security practices include:

1. Content Security Policy (CSP): Protects against Cross-Site Scripting (XSS) by controlling which resources are allowed to load.
2. Cross-Origin Resource Sharing (CORS): Manages resource sharing between domains to prevent unauthorized access.
3. Secure Input Handling: Always validate and sanitize user inputs to prevent injection attacks.
4. Same-Origin Policy (SOP): Ensures that scripts are only allowed to interact with content from the same origin.
5. Web Storage & Cookies: Securely store sensitive data using encryption and ensure cookies are marked as HttpOnly and Secure.
6. HTTPS: Enforce the use of secure connections to protect data in transit.
7. Subresource Integrity (SRI): Ensures that external resources haven't been tampered with.

By following these principles, you can significantly improve the security of your HTML5-based applications.

What your browser does when you look away...
https://html5sec.org​