Master your Web Security fundamentals, advanced mechanics, and ace your frontend interview challenges.
Showing 9 of 9 questions
Compare JWTs vs. Session Cookies for authentication. Learn about secure token storage, CSRF risks, token revocation, XSS vectors, and cookie flags (HttpOnly, Secure, SameSite).
Understand clickjacking attacks and how to defend against them. Learn about X-Frame-Options headers, Content Security Policy frame-ancestors, and framing sandboxes.
Master Content Security Policy (CSP). Learn how to declare strict CSP directives, use nonces and hashes, restrict object/script sources, and set up violation report logging.
Master network and document security. Learn how Cross-Origin Resource Sharing (CORS) handles preflight requests, and how Content Security Policy (CSP) mitigates script injections.
Master the mechanics of Cross-Origin Resource Sharing (CORS). Learn about preflight OPTIONS requests, simple vs credentialed requests, access control headers, and common misconfigurations.
Learn what triggers a CORS preflight request (OPTIONS), how it affects web performance, and how to optimize it.
Learn where to securely store JWTs and authentication tokens in web applications, comparing LocalStorage, SessionStorage, and secure Cookies.
Learn how SQL Injection vulnerabilities occur and how to prevent them. Understand parameterized queries, input sanitization, ORM integration, and database least privilege principles.
Master client-side web security. Learn how Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF) work, how they differ, and complete mitigation strategies.